fix typing

Signed-off-by: XenGi <cccb-git@xengi.de>

.dockerignore

@@ -1,11 +0,0 @@
-node_modules
-Dockerfile
-.dockerignore
-.git
-.gitignore
-README.md
-LICENSE
-.editorconfig
-.idea
-coverage*
-

.forgejo/workflows/tests.yml

@@ -1,25 +0,0 @@
-name: Run tests
-
-on:
-  push:
-    branches:
-      - next
-  workflow_dispatch:
-
-jobs:
-  tests:
-    runs-on: docker
-    container:
-      image: debian:stable
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Setup Go
-        uses: actions/setup-go@v4
-        with:
-          #go-version: "stable"
-          go-version-file: "go.mod"
-          check-latest: true
-      - name: Run tests
-        run: make test
-

.gitignore

@@ -1,5 +1,10 @@
 sanic
 result
+# self-signed certs for testing
+cert.pem
+key.pem
+# test files
+*.mp3
 
 # Created by https://www.toptal.com/developers/gitignore/api/linux,windows,macos,vim,goland+all,go,direnv
 # Edit at https://www.toptal.com/developers/gitignore?templates=linux,windows,macos,vim,goland+all,go,direnv

.gitlab-ci.yml

@@ -0,0 +1,73 @@
+include:
+  - template: Security/Dependency-Scanning.gitlab-ci.yml
+  - template: Security/SAST.gitlab-ci.yml
+  - template: Security/Secret-Detection.gitlab-ci.yml
+  - template: Security/Container-Scanning.gitlab-ci.yml
+
+variables:
+  # Use TLS https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#tls-enabled
+  DOCKER_HOST: tcp://docker:2376
+  DOCKER_TLS_CERTDIR: "/certs"
+  CONTAINER_TEST_IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
+  CONTAINER_RELEASE_IMAGE: $CI_REGISTRY_IMAGE:latest
+
+container_scanning:
+  variables:
+    CS_DEFAULT_BRANCH_IMAGE: $CI_REGISTRY_IMAGE/$CI_DEFAULT_BRANCH:$CI_COMMIT_SHA
+
+image: golang:latest
+
+stages:
+  - test
+  - build
+  - release
+
+format:
+  stage: test
+  script:
+    - go fmt $(go list ./...)
+
+vet:
+  stage: test
+  script:
+    - go vet $(go list ./...)
+
+test:
+  stage: test
+  script:
+    - go test -race $(go list ./...)
+
+sast:
+  stage: test
+
+compile:
+  stage: build
+  script:
+    - mkdir -p bin
+    - go build -v -o bin ./...
+  artifacts:
+    paths:
+      - bin
+
+build:
+  stage: build
+  image: docker:stable
+  services:
+    - docker:stable-dind
+  script:
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker build --pull -t $CONTAINER_TEST_IMAGE .
+    - docker push $CONTAINER_TEST_IMAGE
+
+release:
+  stage: release
+  image: docker:stable
+  services:
+    - docker:stable-dind
+  script:
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker pull $CONTAINER_TEST_IMAGE
+    - docker tag $CONTAINER_TEST_IMAGE $CONTAINER_RELEASE_IMAGE
+    - docker push $CONTAINER_RELEASE_IMAGE
+  only:
+    - main

Dockerfile

@@ -0,0 +1,22 @@
+FROM docker.io/golang:1.22 as builder
+
+WORKDIR /usr/src/app
+
+COPY go.mod go.sum ./
+RUN go mod download && go mod verify
+
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux go build -v -o sanic ./...
+
+# -----
+
+FROM scratch as runner
+
+WORKDIR /
+
+COPY --from=builder /usr/src/app/sanic /sanic
+COPY --from=builder /usr/src/app/static /static
+
+EXPOSE 8080
+
+ENTRYPOINT ["/sanic"]

Makefile

@@ -1,3 +1,49 @@
-mpd:
+PROJECT := sanic
-	mkdir -p /tmp/sanic/{music,playlists}
+
+.DEFAULT_GOAL := help
+
+.PHONY: mpd run build tidy verify test cert container help
+
+mpd:  ## Run mpd test instance
+	mkdir -p /tmp/${PROJECT}/{music,playlists}
+	cp *.mp3 /tmp/${PROJECT}/music/
+	touch /tmp/${PROJECT}/mpd_db
 	mpd --no-daemon ./mpd.conf
+
+run: build  ## Run project
+	./${PROJECT}
+
+build:  ## Compile project
+	go build -v -o ${PROJECT}
+
+update:  ## Update go dependencies
+	go get -u
+	which gomod2nix && gomod2nix  # sync go deps with nix
+
+tidy:  ## Add missing and remove unused modules
+	go mod tidy
+
+verify:  ## Verify dependencies have expected content
+	go mod verify
+
+format:  ## Format go code
+	go fmt ./...
+
+lint:  ## Run linter (staticcheck)
+	staticcheck -f stylish ./...
+
+test:  ## Run tests
+	go test ./...
+
+cert:  ## Create https certificate for local testing
+	go run $$GOROOT/src/crypto/tls/generate_cert.go --host localhost
+
+build-container:  ## Build container image
+	podman build --tag ${PROJECT}:latest .
+
+run-container: build-container  ## Run container image
+	podman run --rm --volume ./config.ini:/config.ini --publish-all ${PROJECT}:latest
+
+help: ## Display this help
+	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+

NOTES.md

@@ -1,20 +1,86 @@
-# mpd commands
+# features
 
-- [x] previous track
+## frontend
-- [x] next track
-- [x] stop
-- [x] play/pause
-- [x] set track progress
-- [x] set volume
-- [x] repeat queue
-- [x] shuffle queue
-- [ ] set fade
-- [ ] add track to queue
-- [ ] rm track from queue
-- [ ] move track in queue
-- [ ] clear queue
-- [ ] list tracks in music db
-- [ ] list playlists
-- [ ] save playlist
-- [ ] delete playlist
 
+- Ribbon menu
+  - [x] Show mpd connection state
+  - [ ] Display config dialog (is this even needed?)
+  - [x] `Update DB` button
+    - [x] Disable if running update is detected
+  - [x] `Previous Track` button
+  - [x] `Next Track` button
+  - [x] `Stop` button
+  - [x] `Play` button
+    - [x] `Pause` button
+  - [x] Track seeker
+  - [x] `Repeat` toggle
+  - [x] `Shuffle` toggle
+  - [ ] xfade
+    - [ ] decrease
+    - [ ] increase
+  - [x] Volume 
+    - [x] increase
+    - [x] decrease
+    - [x] set with bar
+  - [x] `Now playing`
+    - [x] shows current track
+    - [x] marquee effect
+  - [x] `Time`
+- Queue
+  - [x] Show queue
+  - [x] Highlight current track
+  - [ ] Move track up
+  - [ ] Move track down
+  - [ ] Remove track
+  - [ ] `Clear queue` button?
+- File browser
+  - [ ] List all directories
+  - [ ] Selected folder has different icon (📂 vs 📁)
+  - [ ] Folders with subfolders have a ➕ or ➖ sign
+  - [ ] Clicked folders contents are displayed in the results
+  - [ ] Select tracks in results
+  - [ ] `Add` selected tracks to queue button
+- Search
+  - [ ] Search files results
+  - [ ] Select tracks in results
+  - [ ] `Add` selected tracks to queue button
+- Playlist browser
+  - [x] Show current playlists
+  - [x] `Replace` current queue with playlist button
+  - [x] `Attach` playlist to current queue button
+  - [x] `Save` current queue as playlist button
+    - [x] Show dialog
+  - [x] `Delete` selected playlist button
+    
+## backend
+
+- Websocket
+  - [x] `#status` requests mpd infos:
+    - `status` 
+    - `currentsong`
+    - `playlistinfo` (queue)
+  - [ ] `#download` requests download of URL (`yt-dlp`)
+    - *TBA*
+- API endpoints
+  - [x] GET `/api/update_db`
+  - [x] GET `/api/previous_track`
+  - [x] GET `/api/next_track`
+  - [x] GET `/api/stop`
+  - [x] GET `/api/play`
+  - [x] GET `/api/pause`
+  - [x] GET `/api/seek/:seconds`
+  - [x] GET `/api/repeat`
+  - [x] GET `/api/random`
+  - [x] GET `/api/volume/:level`
+  - [ ] `/api/xfade/:seconds`
+  - [ ] `/api/queue_clear`
+  - [ ] POST `/api/queue` `{"song_id": 123}`
+  - [x] GET `/api/queue/:song_id/delete`
+  - [x] GET `/api/queue/:song_id/move/:position`
+  - [x] GET `/api/queue/replace/:playlist_name`
+  - [x] GET `/api/queue/attach/:playlist_name`
+  - [ ] GET `/api/database/:path`
+  - [x] GET `/api/playlists`
+  - [x] POST `/api/playlists/:name`
+  - [x] GET `/api/playlists/:name`
+  - [x] DELETE `/api/playlists/:name`

README.md

@@ -1,34 +1,127 @@
-[![maintained](https://img.shields.io/maintenance/yes/2023)]()
+[![maintained](https://img.shields.io/maintenance/yes/2024?style=flat-square)]()
+![Gitea Release](https://img.shields.io/gitea/v/release/cccb/sanic?gitea_url=https%3A%2F%2Fgit.berlin.ccc.de&sort=semver&display_name=release&style=flat-square)
 
-# sanic
+
+# 🦔 sanic
 
 chaos music control inspired by [relaxx player][relaxx]
 
-
+## ✨ Features
-## features
 
 - mpd web gui
   - search music
   - organize playlists
   - control current playback queue
 - no authentication required to control music playback
-- add music from other sources like youtube (`youtube-dl`)
 - add playlists from internet radios (`*.m3u`, `*.pls`)
+- add music from other sources like youtube (`youtube-dl`)
 
-## development
+## 👩‍💻 Installation
 
-Build nix flake:
+### ❄️ NixOS (flakes)
+
+Example flake setup (untested):
+
+```nix
+{
+  description = "Example Flake to install sanic on your host";
+  inputs = {
+    nixpkgs.url = github:NixOS/nixpkgs/nixos-24.05;
+    sanic = {
+      url = gitlab:XenGi/sanic/main;
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+  outputs = { self, nixpkgs, sanic }:
+  let
+    system = "x86_64-linux";
+    pkgs = import nixpkgs { inherit system; };
+  in
+  {
+    nixosConfigurations."myhostname".nixpkgs.lib.nixosSystem = {
+      inherit system;
+      modules = [
+        { environment.systemPackages = [ sanic.packages.${system}.default ]; }
+      ];
+    };
+  };
+}
+```
+
+### 🇦 Arch Linux
+
+Install from the AUR:
+
+```shell
+yay -S sanic
+```
+
+### 🐳 Container
+
+Run as daemon:
+
+```shell
+podman run -d -v ./config.ini:/config.ini -p 8080:8080 registry.gitlab.com/XenGi/sanic:latest
+```
+
+## 🛠️ Development
+
+sanic is developed using [Nix][nix], but you can also just use the usual Golang tooling.
+
+Run local [MPD][mpd] instance for testing with `make mpd`.
+
+Update go dependencies like this:
+
+```shell
+go get -u  # or `make update`
+go mod tidy  # or `make tidy`
+gomod2nix  # sync go deps with nix
+```
+
+### ❄️ w/ Nix
+
+Enter development shell (also has [mpc][mpc] client installed for testing):
+
+```shell
+nix develop
+```
+
+Build sanic:
 
 ```shell
 nix build
 ```
 
-## architecture
+### 🐧 w/o Nix
 
-[![Architecture](https://git.berlin.ccc.de/cccb/sanic/raw/branch/main/architecture.drawio.svg)](https://app.diagrams.net/?mode=git.berlin.ccc.de#Hcccb%2Fsanic%2Fmain%2Farchitecture.drawio.svg)
+Use these Make targets for your convenience:
+
+- `run`: Run project
+- `build`: Compile project
+- `tidy`: Add missing and remove unused modules
+- `verify`: Verify dependencies have expected content
+- `format`: Format go code
+- `lint`: Run linter (staticcheck)
+- `test`: Run tests
+- `cert`: Create https certificate for local testing
+
+### 🐳 Container
+
+You can run sanic in a container. Use these Make targets for convenience:
+
+- `build-container`: Build container image
+- `run-container`: Run container image
+
+## 🗺️ Architecture
+
+[![Architecture](https://gitlab.com/XenGi/sanic/-/raw/main/architecture.drawio.svg)](https://app.diagrams.net/?mode=gitlab.com#AXenGi%2Fsanic%2Fmain%2Farchitecture.drawio.svg)
 
 ---
 
-Made with ❤️ and 🐍.
+Made with ❤️ and ![golang logo][golang].
 
 [relaxx]: http://relaxx.dirk-hoeschen.de/
+[nix]: https://nixos.org/manual/nix/stable/
+[golang]: https://go.dev/images/favicon-gopher.svg
+[mpd]: https://musicpd.org/
+[mpc]: https://www.musicpd.org/clients/mpc/

aur/PKGBUILD

@@ -0,0 +1,53 @@
+# Maintainer: Ricardo Band <email@ricardo.band>
+
+pkgname=sanic
+pkgver=0.0.1
+pkgrel=1
+pkgdesc="chaos music control inspired by relaxx player"
+arch=('any')
+url=https://git.berlin.ccc.de/cccb/sanic
+license=('custom:MIT')
+makedepends=('go')
+source=("$pkgname.service"
+        "$pkgname.sysusers"
+        "$pkgname.tmpfiles"
+        "$url/archive/v$pkgver.tar.gz")
+sha256sums=("1337deadbeef"
+            "1337deadbeef"
+            "1337deadbeef"
+            "1337deadbeef")
+
+prepare() {
+  cd "$pkgname-$pkgver"
+
+  mkdir -p build/
+}
+
+build() {
+  cd "$pkgname-$pkgver"
+
+  export CGO_CPPFLAGS="$CPPFLAGS"
+  export CGO_CFLAGS="$CFLAGS"
+  export CGO_CXXFLAGS="$CXXFLAGS"
+  export CGO_LDFLAGS="$LDFLAGS"
+  export GOFLAGS="-buildmode=pie -trimpath -ldflags=-linkmode=external -mod=readonly -modcacherw"
+
+  go build -o build/ .
+}
+
+check() {
+  cd "$pkgname-$pkgver"
+
+  go test ./...
+}
+
+package() {
+  cd "$pkgname-$pkgver"
+
+  install -Dm644 "LICENSE" "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+  install -Dm755 build/$pkgname "$pkgdir"/usr/bin/$pkgname
+  install -Dm644 "../$pkgname.service" "$pkgdir/usr/lib/systemd/system/$pkgname.service"
+  install -Dm644 "../$pkgname.sysusers" "$pkgdir/usr/lib/sysusers.d/$pkgname.conf"
+  install -Dm644 "../$pkgname.tmpfiles" "$pkgdir/usr/lib/tmpfiles.d/$pkgname.conf"
+}
+

aur/sanic.service

@@ -0,0 +1,28 @@
+[Unit]
+Description=chaos music control
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=sanic
+Group=sanic
+ExecStart=/usr/bin/sanic
+Restart=always
+# security
+NoNewPrivileges=true
+ProtectSystem=strict
+ProtectHome=yes
+StateDirectory=sanic
+StateDirectoryMode=0750
+ConfigurationDirectory=sanic
+ConfigurationDirectoryMode=0750
+PrivateTmp=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectKernelLogs=true
+ProtectControlGroups=true
+
+[Install]
+WantedBy=multi-user.target
+

aur/sanic.sysusers

@@ -0,0 +1,3 @@
+u sanic - "chaos music control" /run/sanic /usr/bin/nologin
+g sanic - -
+

aur/sanic.tmpfiles

@@ -0,0 +1,3 @@
+d /etc/sanic 0750 sanic sanic
+d /run/sanic 0750 sanic sanic
+

cert.pem

@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIC+jCCAeKgAwIBAgIRAKMiYz6LLo+9sgp/p9YbsgIwDQYJKoZIhvcNAQELBQAw
-EjEQMA4GA1UEChMHQWNtZSBDbzAeFw0yMzExMDcyMDAyNTRaFw0yNDExMDYyMDAy
-NTRaMBIxEDAOBgNVBAoTB0FjbWUgQ28wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
-ggEKAoIBAQCkb+0FSWggYNPP0+X1erZc+9Qe1SxYv868C5FYgh6OZG8+YU7/7aYC
-trk30LysZpO3gi9XfVWv1+R5c1DBXisxtrgz5Z966qBk60yBnPeigu7rtnHnxX3p
-JDs0Yd9CLCGk6g4zHbCuDVqNHxWjc/M8oQMCb9ay5Qh0fFEOR6G7b0x9z7eXUCnT
-+rZ+SvXpuZ75kxTYQNK7taYPEK2abP79u+rv3DXKR8nMWUwtligCCTj8dTAUPiVW
-nQJ4MTv4Xj0gkak4n1p+r2BPrWvTjQOj8ndag5fe8sufkVu3Slt2yY0Ipdk15jfC
-p6/C8FpZVTstwjP/XCAOV2se+FE5qwgVAgMBAAGjSzBJMA4GA1UdDwEB/wQEAwIF
-oDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMBQGA1UdEQQNMAuC
-CWxvY2FsaG9zdDANBgkqhkiG9w0BAQsFAAOCAQEAFGeg/L0jJn/IIeD37jn/GQ28
-lCHe0RJC3x1FH/v5uNgnZXqz+xDV8SUv84wj9kbUnfu1gPaVhpwDMuirHrYhgViN
-Fq742zLnUxZW7TOnIR/nPGEvfQRhe8wLWvkkT1pRVH1yJbdge431vIiuBEjOBEBO
-cr2DZWL6xiJACSG0FBI6Iizvz4vbXrEHhFmleI4Gvj2WR8qx/A29rTnh+oE7ymMo
-+yhREeDEZ7kTXTevGZoIwfHeHMg+IE1bNFz1OlA3qb38PS5ko+uD4INlT9f2dDdP
-7uMJFAXjk6jqoZ5CRBuLCRSeTj5ady6x9X8lBv8be9np6JFue6L3S+d1/OoucQ==
------END CERTIFICATE-----

config.ini

@@ -0,0 +1,12 @@
+[mpd]
+host = localhost
+port = 6600
+#username =
+#pasword =
+
+[ui]
+hostname = [::1]
+port = 443
+tls = yes
+cert = cert.pem
+key = key.pem

flake.lock

@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1694529238,
+        "lastModified": 1710146030,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {
@@ -28,11 +28,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1699950847,
+        "lastModified": 1722589758,
-        "narHash": "sha256-xN/yVtqHb7kimHA/WvQFrEG5WS38t0K+A/W+j/WhQWM=",
+        "narHash": "sha256-sbbA8b6Q2vB/t/r1znHawoXLysCyD4L/6n6/RykiSnA=",
         "owner": "tweag",
         "repo": "gomod2nix",
-        "rev": "05c993c9a5bd55a629cd45ed49951557b7e9c61a",
+        "rev": "4e08ca09253ef996bd4c03afa383b23e35fe28a1",
         "type": "github"
       },
       "original": {
@@ -43,11 +43,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1701237617,
+        "lastModified": 1723221148,
-        "narHash": "sha256-Ryd8xpNDY9MJnBFDYhB37XSFIxCPVVVXAbInNPa95vs=",
+        "narHash": "sha256-7pjpeQlZUNQ4eeVntytU3jkw9dFK3k1Htgk2iuXjaD8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "85306ef2470ba705c97ce72741d56e42d0264015",
+        "rev": "154bcb95ad51bc257c2ce4043a725de6ca700ef6",
         "type": "github"
       },
       "original": {

flake.nix

@@ -1,10 +1,10 @@
 {
-  description = "chaos music control";
+  description = "sanic - chaos music control";
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = github:NixOS/nixpkgs/nixpkgs-unstable;
-    flake-utils.url = "github:numtide/flake-utils";
+    flake-utils.url = github:numtide/flake-utils;
     gomod2nix = {
-      url = "github:tweag/gomod2nix";
+      url = github:tweag/gomod2nix;
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.flake-utils.follows = "flake-utils";
     };
@@ -21,22 +21,145 @@
         src = ./.;
         modules = ./gomod2nix.toml;
       };
-    in {
+    in
-      defaultPackage = sanic;
+    {
+      formatter = pkgs.nixpkgs-fmt;
       devShells.default = pkgs.mkShell {
         buildInputs = with pkgs; [
           go
-          gopls
+          go-tools # staticcheck
-          gotools
-          go-tools
           gomod2nix.packages.${system}.default
-          sanic
         ];
         packages = with pkgs; [
           mpd
           mpc-cli
         ];
       };
+      packages.default = sanic;
+      nixosModules.default = { config, lib, pkgs, options, ... }:
+      let
+        cfg = config.services.sanic;
+        configFile = pkgs.writeText "config.ini" ''
+          [ui]
+          host=${cfg.ui.host}
+          port=${toString cfg.ui.port}
+          tls=${if cfg.ui.tls then "true" else "false"}
+          certificate=${toString cfg.ui.certificate}
+          key=${toString cfg.ui.key}
+
+          [mpd]
+          host=${cfg.backend.host}
+          port=${toString cfg.backend.port}
+        '';
+        execCommand = "${cfg.package}/bin/sanic -c '${configFile}'";
+      in
+      {
+        options.services.sanic = {
+          enable = lib.mkEnableOption "Enables the sanic systemd service.";
+          package = lib.mkOption {
+            description = "Package to use.";
+            type = lib.types.package;
+            default = sanic;
+          };
+          ui = lib.mkOption {
+            description = "Setting for HTTP(S) UI.";
+            example = lib.literalExpression ''
+              {
+                host = "[::1]";
+                port = 443;
+                tls = true;
+                certificate = "${config.security.acme.certs."sanic.example.com".directory}/fullchain.pem";
+                key = "${config.security.acme.certs."sanic.example.com".directory}/key.pem";
+              }
+            '';
+            default = {
+              host = "[::1]";
+              port = 80;
+              tls = false;
+            };
+            type = lib.types.submodule {
+              options = {
+                host = lib.mkOption {
+                  type = lib.types.str;
+                  default = "[::1]";
+                  description = "Host to bind to.";
+                };
+                port = lib.mkOption {
+                  type = lib.types.port;
+                  default = 80;
+                  description = "Port to listen on.";
+                };
+                tls = lib.mkOption {
+                  type = lib.types.bool;
+                  default = false;
+                  description = "Enables HTTPS.";
+                };
+                certificate = lib.mkOption {
+                  type = lib.types.nullOr lib.types.path;
+                  default = null;
+                  description = "Path to TLS certificate for HTTPS.";
+                };
+                key = lib.mkOption {
+                  type = lib.types.nullOr lib.types.path;
+                  default = null;
+                  description = "Path to TLS key for HTTPS.";
+                };
+              };
+            };
+          };
+          backend = lib.mkOption {
+            description = "Configure MPD backend.";
+            example = lib.literalExpression ''
+              {
+                host = "localhost";
+                port = 6600;
+              }
+            '';
+            default = {
+              host = "localhost";
+              port = 6600;
+            };
+            type = lib.types.submodule {
+              options = {
+                host = lib.mkOption {
+                  type = lib.types.str;
+                  default = "localhost";
+                  description = "Hostname or IP of MPD instance.";
+                };
+                port = lib.mkOption {
+                  type = lib.types.port;
+                  default = 6600;
+                  description = "Port of MPD instance.";
+                };
+              };
+            };
+          };
+        };
+
+        config = lib.mkIf cfg.enable {
+          systemd.services."sanic" = {
+            description = "sanic - chaos music control";
+            wants = [ "network-online.target" ];
+            after = [ "network-online.target" ];
+            serviceConfig = {
+              Restart = "always";
+              RestartSec = 30;
+              ExecStart = execCommand;
+              User = "sanic";
+              Group = "sanic";
+              AmbientCapabilities = lib.mkIf (cfg.ui.port < 1000) [ "CAP_NET_BIND_SERVICE" ];
+              CapabilityBoundingSet = lib.mkIf (cfg.ui.port < 1000) [ "CAP_NET_BIND_SERVICE" ];
+              NoNewPrivileges = true;
+            };
+            wantedBy = [ "multi-user.target" ];
+          };
+        };
+
+        #meta = {
+        #  maintainers = with lib.maintainers; [ xengi ];
+        #  doc = ./default.xml;
+        #};
+      };
     }
   );
 }

go.mod

@@ -1,35 +1,32 @@
-module github.com/cccb/sanic
+module gitlab.com/XenGi/sanic
 
-go 1.20
+go 1.22
 
 require (
 	github.com/fhs/gompd/v2 v2.3.0
-	github.com/labstack/echo-contrib v0.15.0
+	github.com/labstack/echo-contrib v0.17.1
-	github.com/labstack/echo/v4 v4.11.2
+	github.com/labstack/echo/v4 v4.12.0
-	golang.org/x/net v0.17.0
+	golang.org/x/net v0.28.0
+	gopkg.in/ini.v1 v1.67.0
 )
 
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/labstack/gommon v0.4.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/prometheus/client_golang v1.19.1 // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/client_golang v1.14.0 // indirect
+	github.com/prometheus/common v0.55.0 // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/prometheus/common v0.40.0 // indirect
-	github.com/prometheus/procfs v0.9.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/crypto v0.26.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/sys v0.23.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/text v0.17.0 // indirect
-	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/time v0.6.0 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
 )

go.sum

@@ -1,85 +1,79 @@
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fhs/gompd/v2 v2.3.0 h1:wuruUjmOODRlJhrYx73rJnzS7vTSXSU7pWmZtM3VPE0=
 github.com/fhs/gompd/v2 v2.3.0/go.mod h1:nNdZtcpD5VpmzZbRl5rV6RhxeMmAWTxEsSIMBkmMIy4=
 github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
 github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
-github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/labstack/echo-contrib v0.17.0 h1:xam8wakZOsiQYM14Z0og1xF3w/heWNeDF5AtC5PlX8E=
-github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/labstack/echo-contrib v0.17.0/go.mod h1:mjX5VB3OqJcroIEycptBOY9Hr7rK+unq79W8QFKGNV0=
-github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/labstack/echo-contrib v0.17.1 h1:7I/he7ylVKsDUieaGRZ9XxxTYOjfQwVzHzUYrNykfCU=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/labstack/echo-contrib v0.17.1/go.mod h1:SnsCZtwHBAZm5uBSAtQtXQHI3wqEA73hvTn0bYMKnZA=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/labstack/echo/v4 v4.12.0 h1:IKpw49IMryVB2p1a4dzwlhP1O2Tf2E0Ir/450lH+kI0=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/labstack/echo/v4 v4.12.0/go.mod h1:UP9Cr2DJXbOK3Kr9ONYzNowSh7HP0aG0ShAyycHSJvM=
-github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
-github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/labstack/gommon v0.4.2/go.mod h1:QlUFxVM+SNXhDL/Z7YhocGIBYOiwB0mXm1+1bAPHPyU=
-github.com/labstack/echo-contrib v0.15.0 h1:9K+oRU265y4Mu9zpRDv3X+DGTqUALY6oRHCSZZKCRVU=
-github.com/labstack/echo-contrib v0.15.0/go.mod h1:lei+qt5CLB4oa7VHTE0yEfQSEB9XTJI1LUqko9UWvo4=
-github.com/labstack/echo/v4 v4.11.2 h1:T+cTLQxWCDfqDEoydYm5kCobjmHwOwcv4OJAPHilmdE=
-github.com/labstack/echo/v4 v4.11.2/go.mod h1:UcGuQ8V6ZNRmSweBIJkPvGfwCMIlFmiqrPqiEBfPYws=
-github.com/labstack/gommon v0.4.0 h1:y7cvthEAEbU0yHOf4axH8ZG2NH8knB9iNSoTO8dyIk8=
-github.com/labstack/gommon v0.4.0/go.mod h1:uW6kP17uPlLJsD3ijUYn3/M5bAxtlZhMI6m3MFxTMTM=
-github.com/mattn/go-colorable v0.1.11/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
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-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
-github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
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-github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
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-github.com/matttproud/golang_protobuf_extensions v1.0.4 h1:mmDVorXM7PCGKw94cs5zkfA9PSy5pEvNWRP0ET0TIVo=
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-github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
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 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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-github.com/prometheus/client_golang v1.14.0 h1:nJdhIvne2eSX/XRAFV9PcvFFRbrjbcTUj0VP62TMhnw=
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-golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
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-golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
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-golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
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-golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=
-golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/net v0.28.0 h1:a9JDOJc5GMUJ0+UDqmLT86WiEy7iWyIhz8gz8E4e5hE=
-golang.org/x/sys v0.0.0-20211103235746-7861aae1554b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/net v0.28.0/go.mod h1:yqtgsTWOOnlGLG9GFRrK3++bGOUEkNBoHZc8MEDWPNg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
+golang.org/x/sys v0.23.0 h1:YfKFowiIMvtgl1UERQoTPPToxltDeZfbj4H7dVUCwmM=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/sys v0.23.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
-golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
-google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
-google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
+golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
-google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+golang.org/x/time v0.6.0 h1:eTDhh4ZXt5Qf0augr54TN6suAUudPcawVZeIAPU7D4U=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+golang.org/x/time v0.6.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
+google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
+gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
+gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

gomod2nix.toml

@@ -5,56 +5,44 @@ schema = 3
     version = "v1.0.1"
     hash = "sha256-h75GUqfwJKngCJQVE5Ao5wnO3cfKD9lSIteoLp/3xJ4="
   [mod."github.com/cespare/xxhash/v2"]
-    version = "v2.2.0"
+    version = "v2.3.0"
-    hash = "sha256-nPufwYQfTkyrEkbBrpqM3C2vnMxfIz6tAaBmiUP7vd4="
+    hash = "sha256-7hRlwSR+fos1kx4VZmJ/7snR7zHh8ZFKX+qqqqGcQpY="
   [mod."github.com/fhs/gompd/v2"]
     version = "v2.3.0"
     hash = "sha256-JBb7BvLu1wlUAbMt/g5JmJtA3fxqr6dKWeeLwfGsB08="
   [mod."github.com/golang-jwt/jwt"]
     version = "v3.2.2+incompatible"
     hash = "sha256-LOkpuXhWrFayvVf1GOaOmZI5YKEsgqVSb22aF8LnCEM="
-  [mod."github.com/golang/protobuf"]
-    version = "v1.5.2"
-    hash = "sha256-IVwooaIo46iq7euSSVWTBAdKd+2DUaJ67MtBao1DpBI="
-  [mod."github.com/json-iterator/go"]
-    version = "v1.1.12"
-    hash = "sha256-To8A0h+lbfZ/6zM+2PpRpY3+L6725OPC66lffq6fUoM="
   [mod."github.com/labstack/echo-contrib"]
-    version = "v0.15.0"
+    version = "v0.17.1"
-    hash = "sha256-bDjEAJc5gPs+G5M8fbTSBFgb0t4dTYqdECyvHvuf3gY="
+    hash = "sha256-OkO1gWz1xL8Rw2wy4RMJjsLGhABAqAsjpVkQ3b6G+L4="
   [mod."github.com/labstack/echo/v4"]
-    version = "v4.11.2"
+    version = "v4.12.0"
-    hash = "sha256-OECk2lBNKKBpzJ58XMhpp8KI/tqE0TnyddWyhI+nHPs="
+    hash = "sha256-TPXJv/6C53bnmcEYxa9g5Mft8u/rLT96q64tQ9+RtKU="
   [mod."github.com/labstack/gommon"]
-    version = "v0.4.0"
+    version = "v0.4.2"
-    hash = "sha256-xISAIJEu2xh0hoWsORbgjnz3rDK3ft3hrvmxt0wfHVw="
+    hash = "sha256-395+BETDpv15L2lsCiEccwakXgEQxKHlYBAU0Ot3qhY="
   [mod."github.com/mattn/go-colorable"]
     version = "v0.1.13"
     hash = "sha256-qb3Qbo0CELGRIzvw7NVM1g/aayaz4Tguppk9MD2/OI8="
   [mod."github.com/mattn/go-isatty"]
-    version = "v0.0.19"
+    version = "v0.0.20"
-    hash = "sha256-wYQqGxeqV3Elkmn26Md8mKZ/viw598R4Ych3vtt72YE="
+    hash = "sha256-qhw9hWtU5wnyFyuMbKx+7RB8ckQaFQ8D+8GKPkN3HHQ="
-  [mod."github.com/matttproud/golang_protobuf_extensions"]
+  [mod."github.com/munnerz/goautoneg"]
-    version = "v1.0.4"
+    version = "v0.0.0-20191010083416-a7dc8b61c822"
-    hash = "sha256-uovu7OycdeZ2oYQ7FhVxLey5ZX3T0FzShaRldndyGvc="
+    hash = "sha256-79URDDFenmGc9JZu+5AXHToMrtTREHb3BC84b/gym9Q="
-  [mod."github.com/modern-go/concurrent"]
-    version = "v0.0.0-20180306012644-bacd9c7ef1dd"
-    hash = "sha256-OTySieAgPWR4oJnlohaFTeK1tRaVp/b0d1rYY8xKMzo="
-  [mod."github.com/modern-go/reflect2"]
-    version = "v1.0.2"
-    hash = "sha256-+W9EIW7okXIXjWEgOaMh58eLvBZ7OshW2EhaIpNLSBU="
   [mod."github.com/prometheus/client_golang"]
-    version = "v1.14.0"
+    version = "v1.19.1"
-    hash = "sha256-dpgGV8C30ZCn7b9mQ+Ye2AfPXTIuHLQbl2olMKzJKxA="
+    hash = "sha256-MSLsMDi89uQc7Pa2fhqeamyfPJpenGj3r+eB/UotK7w="
   [mod."github.com/prometheus/client_model"]
-    version = "v0.3.0"
+    version = "v0.6.1"
-    hash = "sha256-vP+miJfsoK5UG9eug8z/bhAMj3bwg66T2vIh8WHoOKU="
+    hash = "sha256-rIDyUzNfxRA934PIoySR0EhuBbZVRK/25Jlc/r8WODw="
   [mod."github.com/prometheus/common"]
-    version = "v0.40.0"
+    version = "v0.55.0"
-    hash = "sha256-ykOktYSNsCYKR4Ru7UWoebIgzMqJjLG2jrbmO7NBv08="
+    hash = "sha256-qzvCnc+hnAB5dq2MYy8GlPxgyNnyn9kFVlN2CXZe9T0="
   [mod."github.com/prometheus/procfs"]
-    version = "v0.9.0"
+    version = "v0.15.1"
-    hash = "sha256-imZN+1HRpMvgmrot2V+AK5ueYLmsp49vZfHtx2N6Wek="
+    hash = "sha256-H+WXJemFFwdoglmD6p7JRjrJJZmIVAmJwYmLbZ8Q9sw="
   [mod."github.com/valyala/bytebufferpool"]
     version = "v1.0.0"
     hash = "sha256-I9FPZ3kCNRB+o0dpMwBnwZ35Fj9+ThvITn8a3Jr8mAY="
@@ -62,20 +50,23 @@ schema = 3
     version = "v1.2.2"
     hash = "sha256-gp+lNXE8zjO+qJDM/YbS6V43HFsYP6PKn4ux1qa5lZ0="
   [mod."golang.org/x/crypto"]
-    version = "v0.14.0"
+    version = "v0.26.0"
-    hash = "sha256-UUSt3X/i34r1K0mU+Y5IzljX5HYy07JcHh39Pm1MU+o="
+    hash = "sha256-Iicrsb65fCmjfPILKoSLyBZMwe2VUcoTF5SpYTCQEuk="
   [mod."golang.org/x/net"]
-    version = "v0.17.0"
+    version = "v0.28.0"
-    hash = "sha256-qRawHWLSsJ06QNbLhUWPXGVSO1eaioeC9xZlUEWN8J8="
+    hash = "sha256-WdH/mgsX/CB+CiYtXEwJAXHN8FgtW2YhFcWwrrHNBLo="
   [mod."golang.org/x/sys"]
-    version = "v0.13.0"
+    version = "v0.23.0"
-    hash = "sha256-/+RDZ0a0oEfJ0k304VqpJpdrl2ZXa3yFlOxy4mjW7w0="
+    hash = "sha256-tC6QVLu72bADgINz26FUGdmYqKgsU45bHPg7sa0ZV7w="
   [mod."golang.org/x/text"]
-    version = "v0.13.0"
+    version = "v0.17.0"
-    hash = "sha256-J34dbc8UNVIdRJUZP7jPt11oxuwG8VvrOOylxE7V3oA="
+    hash = "sha256-R8JbsP7KX+KFTHH7SjRnUGCdvtagylVOfngWEnVSqBc="
   [mod."golang.org/x/time"]
-    version = "v0.3.0"
+    version = "v0.6.0"
-    hash = "sha256-/hmc9skIswMYbivxNS7R8A6vCTUF9k2/7tr/ACkcEaM="
+    hash = "sha256-gW9TVK9HjLk52lzfo5rBzSunc01gS0+SG2nk0X1w55M="
   [mod."google.golang.org/protobuf"]
-    version = "v1.28.1"
+    version = "v1.34.2"
-    hash = "sha256-sTJYgvlv5is7vHNxcuigF2lNASp0QonhUgnrguhfHSU="
+    hash = "sha256-nMTlrDEE2dbpWz50eQMPBQXCyQh4IdjrTIccaU0F3m0="
+  [mod."gopkg.in/ini.v1"]
+    version = "v1.67.0"
+    hash = "sha256-V10ahGNGT+NLRdKUyRg1dos5RxLBXBk1xutcnquc/+4="

key.pem

@@ -1,28 +0,0 @@
------BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCkb+0FSWggYNPP
-0+X1erZc+9Qe1SxYv868C5FYgh6OZG8+YU7/7aYCtrk30LysZpO3gi9XfVWv1+R5
-c1DBXisxtrgz5Z966qBk60yBnPeigu7rtnHnxX3pJDs0Yd9CLCGk6g4zHbCuDVqN
-HxWjc/M8oQMCb9ay5Qh0fFEOR6G7b0x9z7eXUCnT+rZ+SvXpuZ75kxTYQNK7taYP
-EK2abP79u+rv3DXKR8nMWUwtligCCTj8dTAUPiVWnQJ4MTv4Xj0gkak4n1p+r2BP
-rWvTjQOj8ndag5fe8sufkVu3Slt2yY0Ipdk15jfCp6/C8FpZVTstwjP/XCAOV2se
-+FE5qwgVAgMBAAECggEAZN9QTBzy5mHfra80czla44GMZ3mn4a2QWaTS/bOcoQcV
-gvPYrYEQhLuotYe0JiIq3bjb59S4Gs3al3JZCLYG01FegF+NTK7fw+jgHua2tpeR
-j0F1cJOjIMEcHI8pkQNXhD4chdjhyHPip415DbMUdI3lNbp7v3RmkmasppDkswCg
-yz+vLflXwGTliuNzM0HxAPl+gH70KxqXgLMqGH568f8D0b63cViarfRCkL2UnFK6
-rbysWIsRDqG8CIHZZya5KcTruDDXY0DXnZaXahINgb62Lm4C0tqlF387VWhREMyV
-KM4DNFXsiDcgQ6El3BzhxMI0boI02X3jx4lPT11hAQKBgQDU3SlEzrgIX8gM7uG7
-oIXaivHnSR/vYD4tCXtgHDrcNlToNEbFi/73ZQKuiNZHOUQWwDw59Y5LtQwOnpch
-1cqI3E1Eq8CMNP+yAnnbbeDQTwqhou4nU87zpnXY+jVDnktHAF5zIwZo/8f6DaEu
-TDZx3AAGKHv3ScZC6eprsWBNwQKBgQDFwoKvSp55ggY95ZJ9XXAUkeqH2LeGMPun
-126vGviOdBM7c4Rqm4UQ/pPc/UDG3/CcvXpWf/Ab5SkXZJPRWJfd23RdIZcj5PX0
-mRpXdaCJoLfFo0hH4V5C2O3zdIzip9pOU7P5WyWKf68qd7fpNuGUux/vhUnuOaue
-ksraLKz3VQKBgQCiVozLsg++KzYJTwGOs2yB8GduaWFWkQK6HDogYUcufK0ibgPv
-UsY/bKSv8SHiLbVU2ITV+wTrjgbE+4PtRPvyhnjTP11YUG8VFjhS9ah3lWBZR0Xz
-bkItpazIroGCsS1d19UwX+zalP+xH0XmZi87hHnsOGHahUQT8gta2GrGwQKBgEi8
-z2Z8EqfsjDEuBGB6AqR+Ov42VuJTl+xXD832JJ/4z64ZQgYYJ6xlhqtMtwuvCIgO
-JTY1nnIUKrYA92GTrWAbvMQYe8fnChQqUAcFK8QTSiS2dvqBSTNbKMJYBw3C4UfX
-/6Viwf8cEaiUGh/8YKJc5VUq+FNYAOi1Y0k2D3R1AoGAD+Ao5z3UplNCX+F6u/qa
-XoGBFxUt6lFK+ROjXmUl7JmCHHgGuBZ/c6ZaNCFQWKOc21Z92en2whZS2afmjhYG
-6Ps5CU0IKR5E616SOe38rfNpLeu/A+164oneTgb8m3UWAiJnTqTNFg8B1xzsRCBK
-l5Fg6NTJ/tALKrhGfDEHHAU=
------END PRIVATE KEY-----

mpd.go

@@ -0,0 +1,454 @@
+package main
+
+import (
+	"fmt"
+	"github.com/fhs/gompd/v2/mpd"
+	"github.com/labstack/echo/v4"
+	"net/http"
+	"strconv"
+	"time"
+)
+
+// MPD API calls
+
+// updateDb Updates the music database: find new files, remove deleted files, update modified files.
+func updateDb(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	jobId, err := conn.Update("")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, fmt.Sprintf("Database update started with job id %d", jobId))
+}
+
+// previousTrack Plays previous song in the queue.
+func previousTrack(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	err = conn.Previous()
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, "Playing previous track in queue")
+}
+
+// nextTrack Plays next song in the queue.
+func nextTrack(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	err = conn.Next()
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, "PLaying next track in queue")
+}
+
+// stopPlayback Stops playing.
+func stopPlayback(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	err = conn.Stop()
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, "Playback stopped")
+}
+
+// resumePlayback Begins playing the playlist or if paused resumes playback.
+func resumePlayback(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	status, err := conn.Status()
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	if status["state"] == "stop" {
+		err := conn.Play(-1)
+		if err != nil {
+			c.Logger().Error(err)
+		}
+	} else {
+		err = conn.Pause(false)
+		if err != nil {
+			c.Logger().Error(err)
+		}
+	}
+
+	return c.String(http.StatusOK, "Playback resumed")
+}
+
+// pausePlayback Pauses playback.
+func pausePlayback(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	err = conn.Pause(true)
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, "Playback paused")
+}
+
+// seek Seeks to the position defined by seconds within the current song.
+func seek(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	seconds, err := strconv.Atoi(c.Param("seconds"))
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	if seconds < 0 {
+		return c.String(http.StatusBadRequest, "seconds must be positive integer")
+	}
+
+	// TODO: Duration type seems to be used incorrectly
+	err = conn.SeekCur(time.Duration(seconds)*time.Second, false)
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, fmt.Sprintf("Seeked current track to %d seconds", seconds))
+}
+
+// toggleRepeat Toggles repeat state between 1 or 0.
+func toggleRepeat(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	status, err := conn.Status()
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	var msg string
+	if status["repeat"] == "1" {
+		err = conn.Repeat(false)
+		msg = "Toggled Repeat mode to off"
+	} else {
+		err = conn.Repeat(true)
+		msg = "Toggled Repeat mode to on"
+	}
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, msg)
+}
+
+// toggleRandom Toggles random state between 1 or 0.
+func toggleRandom(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	status, err := conn.Status()
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	var msg string
+	if status["random"] == "1" {
+		err = conn.Random(false)
+		msg = "Toggled Random mode to off"
+	} else {
+		err = conn.Random(true)
+		msg = "Toggled Random mode to on"
+	}
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, msg)
+}
+
+// setVolume Sets volume to level, the range of volume is 0-100.
+func setVolume(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	level, err := strconv.Atoi(c.Param("level"))
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	if level > 100 || level < 0 {
+		return c.String(http.StatusBadRequest, "Volume must be between 0 and 100")
+	}
+
+	err = conn.SetVolume(level)
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	return c.String(http.StatusOK, fmt.Sprintf("Set volume to %d", level))
+}
+
+// Queue
+
+// deleteTrackFromQueue removed track with song_id from queue
+func deleteTrackFromQueue(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	songId, err := strconv.Atoi(c.Param("song_id"))
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	err = conn.DeleteID(songId)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.String(http.StatusOK, fmt.Sprintf("Removed song %d from queue", songId))
+}
+
+// moveTrackInQueue moves song with song_id to the new place position in the queue.
+func moveTrackInQueue(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	songId, err := strconv.Atoi(c.Param("song_id"))
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	position, err := strconv.Atoi(c.Param("position"))
+	if err != nil {
+		c.Logger().Error(err)
+	}
+
+	err = conn.MoveID(songId, position)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.String(http.StatusOK, fmt.Sprintf("Moved song %d to position %d", songId, position))
+}
+
+// attachPlaylist adds the playlist with the name playlist_name to the queue.
+func attachPlaylist(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	name := c.Param("playlist_name")
+
+	err = conn.PlaylistLoad(name, -1, -1)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.JSON(http.StatusOK, "")
+}
+
+// replaceQueue replaces the current queue with  the playlist with the name playlist_name.
+func replaceQueue(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	name := c.Param("playlist_name")
+
+	err = conn.Clear()
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusInternalServerError, err.Error())
+	}
+	err = conn.PlaylistLoad(name, -1, -1)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.JSON(http.StatusOK, "")
+}
+
+// Playlists
+
+// listPlaylists return a list of all stored playlists.
+func listPlaylists(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	playlists, err := conn.ListPlaylists()
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.JSON(http.StatusOK, playlists)
+}
+
+// listPlaylist returns the contents of the playlist defined by name.
+func listPlaylist(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	name := c.Param("name")
+
+	playlist, err := conn.PlaylistContents(name)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.JSON(http.StatusOK, playlist)
+}
+
+// deletePlaylist deletes the playlist defined by name.
+func deletePlaylist(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	name := c.Param("name")
+
+	err = conn.PlaylistRemove(name)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.String(http.StatusNoContent, "")
+}
+
+// savePlaylist saves the current queue to a playlist with the given name.
+func savePlaylist(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	name := c.Param("name")
+
+	err = conn.PlaylistSave(name)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	return c.String(http.StatusCreated, "")
+}
+
+// searchDatabase search the database path given by pattern and returns all entries that contain the pattern either in their artist, album or title.
+func searchDatabase(c echo.Context) error {
+	// Connect to MPD server
+	conn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+	}
+	defer conn.Close()
+
+	pattern := c.Param("pattern")
+
+	artistResult, err := conn.Search("artist", pattern)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+	albumResult, err := conn.Search("album", pattern)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+	titleResult, err := conn.Search("title", pattern)
+	if err != nil {
+		c.Logger().Error(err)
+		return c.String(http.StatusBadRequest, err.Error())
+	}
+
+	songs := append(append(artistResult, albumResult...), titleResult...)
+
+	// make list unique
+	uniqueList := make([]mpd.Attrs, 0, len(songs))
+	keep := make(map[string]bool)
+	for _, song := range songs {
+		if _, ok := keep[song["file"]]; !ok {
+			keep[song["file"]] = true
+			uniqueList = append(uniqueList, song)
+		}
+	}
+
+	return c.JSON(http.StatusOK, uniqueList)
+}

sanic.container

@@ -0,0 +1,29 @@
+[Unit]
+Description=sanic - chaos music control
+
+[Container]
+AddCapability=CAP_NET_BIND_SERVICE
+AutoUpdate=registry
+ContainerName=sanic
+Group=sanic
+HealthCmd=/usr/bin/curl localhost:443/echo
+HealthInterval=2m
+HealthOnFailure=restart
+HealthRetries=5
+HealthStartPeriod=1m
+Image=registry.gitlab.com/xengi/sanic/sanic:latest
+LogDriver=journald
+Network=host
+NoNewPrivileges=true
+PublishPort=443
+Pull=always
+User=sanic
+Volume=/etc/sanic/config.ini:/config.ini
+
+[Service}
+Restart=always
+TimeoutStartSec=900
+
+[Install]
+WantedBy=multi-user.target default.target
+

server.go

@@ -2,19 +2,47 @@ package main
 
 import (
 	"fmt"
-	"github.com/fhs/gompd/v2/mpd"
 	"github.com/labstack/echo-contrib/echoprometheus"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
-	"golang.org/x/net/websocket"
+	"gopkg.in/ini.v1"
-	"log"
 	"net/http"
-	"strconv"
+	"os"
-	"strings"
+	"os/exec"
-	"time"
 )
 
+// Config holds the configuration for the mpd connection and for the web server.
+type Config struct {
+	MPD struct {
+		Hostname string `ini:"hostname"`
+		Port     int    `ini:"port"`
+		Username string `ini:"username"`
+		Password string `ini:"password"`
+	} `ini:"mpd"`
+	UI struct {
+		Hostname    string `ini:"hostname"`
+		Port        int    `ini:"port"`
+		Tls         bool   `ini:"tls"`
+		Certificate string `ini:"cert"`
+		Key         string `ini:"key"`
+	} `ini:"ui"`
+}
+
 func main() {
+	iniData, err := ini.Load("config.ini")
+	if err != nil {
+		fmt.Printf("Fail to read configuration file: %v", err)
+		os.Exit(1)
+	}
+
+	var config Config
+
+	err = iniData.MapTo(&config)
+	if err != nil {
+		fmt.Printf("Fail to parse configuration file: %v", err)
+		os.Exit(1)
+	}
+
 	e := echo.New()
 	e.Use(middleware.Logger())
 	e.Use(middleware.Recover())
@@ -45,7 +73,23 @@ func main() {
 		return c.File("index.html")
 	})
 
+	// echo back request to check if HTTP/2 works etc
+	e.GET("/echo", func(c echo.Context) error {
+		req := c.Request()
+		format := `
+<code>
+    Protocol: %s<br>
+    Host: %s<br>
+    Remote Address: %s<br>
+    Method: %s<br>
+    Path: %s<br>
+</code>
+`
+		return c.HTML(http.StatusOK, fmt.Sprintf(format, req.Proto, req.Host, req.RemoteAddr, req.Method, req.URL.Path))
+	})
+
 	g := e.Group("/api")
+	g.GET("/update_db", updateDb)
 	g.GET("/previous_track", previousTrack)
 	g.GET("/next_track", nextTrack)
 	g.GET("/stop", stopPlayback)
@@ -56,224 +100,48 @@ func main() {
 	g.GET("/random", toggleRandom)
 	g.GET("/volume/:level", setVolume)
 
-	e.GET("/ws", wsServe)
+	g.GET("/queue/:song_id/delete", deleteTrackFromQueue)
+	g.GET("/queue/:song_id/move/:position", moveTrackInQueue)
+	g.GET("/queue/replace/:playlist_name", replaceQueue)
+	g.GET("/queue/attach/:playlist_name", attachPlaylist)
 
-	e.Logger.Fatal(e.StartTLS(":1323", "cert.pem", "key.pem"))
+	g.GET("/playlists", listPlaylists)
-	//e.Logger.Fatal(e.Start(":1323"))
+	g.POST("/playlists/:name", savePlaylist)
-}
+	g.GET("/playlists/:name", listPlaylist)
+	g.DELETE("/playlists/:name", deletePlaylist)
 
-func wsServe(c echo.Context) error {
+	g.GET("/database/:pattern", searchDatabase)
-	fmt.Println("wsServe")
+
-	websocket.Handler(func(ws *websocket.Conn) {
+	g.GET("/download", downloadTrack)
-		defer ws.Close()
+
-		fmt.Println("handler")
+	e.GET("/sse", serveSSE)
-		for {
+
-			// Read
+	if config.UI.Tls {
-			msg := ""
+		e.Logger.Fatal(e.StartTLS(fmt.Sprintf("%s:%d", config.UI.Hostname, config.UI.Port), config.UI.Certificate, config.UI.Key))
-			err := websocket.Message.Receive(ws, &msg)
-			if err != nil {
-				c.Logger().Error(err)
-				break
 	} else {
-				if strings.HasPrefix(strings.ToUpper(msg), "MPD#") {
+		e.Logger.Fatal(e.Start(fmt.Sprintf("%s:%d", config.UI.Hostname, config.UI.Port)))
-					// Forward MPD communication
-					// TODO: forward request to mpd and response back to client
-					err := websocket.Message.Send(ws, "MPD command received, processing... processing...")
-					if err != nil {
-						c.Logger().Error(err)
 	}
-
-				} else if strings.HasPrefix(strings.ToUpper(msg), "YT#") {
-					// Download video link as audio file
-					// TODO: implement yt-dlp integration
-					err := websocket.Message.Send(ws, "YT-DLP command received, processing... processing...")
-					if err != nil {
-						c.Logger().Error(err)
-					}
-				}
-			}
-			//fmt.Println(msg)
-		}
-	}).ServeHTTP(c.Response(), c.Request())
-	return nil
 }
 
-// API calls
+// downloadTrack tries to download a given URL and saves the song to the database.
-
+func downloadTrack(c echo.Context) error {
-func previousTrack(c echo.Context) error {
+	cmd := exec.Command(
-	// Connect to MPD server
+		"yt-dlp",
-	conn, err := mpd.Dial("tcp", "localhost:6600")
+		"--no-wait-for-video",
-	if err != nil {
+		"--no-playlist",
-		log.Fatalln(err)
+		"--windows-filenames",
-	}
+		"--newline",
-	defer conn.Close()
+		"--extract-audio",
-
+		"--audio-format", "mp3",
-	err = conn.Previous()
+		"--audio-quality", "0",
-	if err != nil {
+		"--format", "bestaudio/best",
-		log.Fatalln(err)
+		c.Param("url"),
+	)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	if err := cmd.Run(); err != nil {
+		c.Logger().Fatal(err)
 	}
 
-	return c.String(http.StatusNoContent, "")
+	return c.String(http.StatusAccepted, "")
-}
-
-func nextTrack(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	err = conn.Next()
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func stopPlayback(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	err = conn.Stop()
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func resumePlayback(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	err = conn.Pause(false)
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func pausePlayback(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	err = conn.Pause(true)
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func seek(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	seconds, err := strconv.Atoi(c.Param("seconds"))
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	if seconds < 0 {
-		return c.String(http.StatusBadRequest, "seconds must be positive integer")
-	}
-
-	err = conn.SeekCur(time.Duration(seconds)*time.Second, false)
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func toggleRepeat(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	status, err := conn.Status()
-	if err != nil {
-		log.Fatalln(err)
-	}
-	if status["repeat"] == "1" {
-		err = conn.Repeat(false)
-	} else {
-		err = conn.Repeat(true)
-	}
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func toggleRandom(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	status, err := conn.Status()
-	if err != nil {
-		log.Fatalln(err)
-	}
-	if status["toggleRandom"] == "1" {
-		err = conn.Random(false)
-	} else {
-		err = conn.Random(true)
-	}
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
-}
-
-func setVolume(c echo.Context) error {
-	// Connect to MPD server
-	conn, err := mpd.Dial("tcp", "localhost:6600")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer conn.Close()
-
-	level, err := strconv.Atoi(c.Param("level"))
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	if level > 100 || level < 0 {
-		return c.String(http.StatusBadRequest, "Volume must be between 0 and 100")
-	}
-
-	err = conn.SetVolume(level)
-	if err != nil {
-		log.Fatalln(err)
-	}
-
-	return c.String(http.StatusNoContent, "")
 }

services.nix

@@ -0,0 +1,30 @@
+{ self, ...}: {config, lib, pkgs, ...}:
+
+let
+  cfg = config.services.sanic;
+  format = pkgs.formats.ini { };
+in
+{
+  options.services.sanic = {
+    enable = mkEnableOption (lib.mdDoc "sanic");
+    settings = mkOption {
+      type = format.type;
+      default = { };
+      description = lib.mkDoc ''
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.sanic = {
+      description = "chaos music control";
+      wantedBy = [ "multi-user.target" "default.target" ];
+      serviceConfig = {
+        DynamicUser = true;
+        ExecStart = "${self.packages.${pkgs.system}.default}/bin/sanic";
+        Restart = "on-failure";
+        AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
+      };
+    };
+  };
+}

sse.go

@@ -0,0 +1,195 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"github.com/fhs/gompd/v2/mpd"
+	"github.com/labstack/echo/v4"
+	"io"
+	"time"
+)
+
+// Event represents Server-Sent Event.
+// SSE explanation: https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#event_stream_format
+type Event struct {
+	// ID is used to set the EventSource object's last event ID value.
+	ID []byte
+	// Data field is for the message. When the EventSource receives multiple consecutive lines
+	// that begin with data:, it concatenates them, inserting a newline character between each one.
+	// Trailing newlines are removed.
+	Data []byte
+	// Event is a string identifying the type of event described. If this is specified, an event
+	// will be dispatched on the browser to the listener for the specified event name; the website
+	// source code should use addEventListener() to listen for named events. The onmessage handler
+	// is called if no event name is specified for a message.
+	Event []byte
+	// Retry is the reconnection time. If the connection to the server is lost, the browser will
+	// wait for the specified time before attempting to reconnect. This must be an integer, specifying
+	// the reconnection time in milliseconds. If a non-integer value is specified, the field is ignored.
+	Retry []byte
+	// Comment line can be used to prevent connections from timing out; a server can send a comment
+	// periodically to keep the connection alive.
+	Comment []byte
+}
+
+// MarshalTo marshals Event to given Writer
+func (ev *Event) MarshalTo(w io.Writer) error {
+	// Marshalling part is taken from: https://github.com/r3labs/sse/blob/c6d5381ee3ca63828b321c16baa008fd6c0b4564/http.go#L16
+	if len(ev.Data) == 0 && len(ev.Comment) == 0 {
+		return nil
+	}
+
+	if len(ev.Data) > 0 {
+		if _, err := fmt.Fprintf(w, "id: %s\n", ev.ID); err != nil {
+			return err
+		}
+
+		sd := bytes.Split(ev.Data, []byte("\n"))
+		for i := range sd {
+			if _, err := fmt.Fprintf(w, "data: %s\n", sd[i]); err != nil {
+				return err
+			}
+		}
+
+		if len(ev.Event) > 0 {
+			if _, err := fmt.Fprintf(w, "event: %s\n", ev.Event); err != nil {
+				return err
+			}
+		}
+
+		if len(ev.Retry) > 0 {
+			if _, err := fmt.Fprintf(w, "retry: %s\n", ev.Retry); err != nil {
+				return err
+			}
+		}
+	}
+
+	if len(ev.Comment) > 0 {
+		if _, err := fmt.Fprintf(w, ": %s\n", ev.Comment); err != nil {
+			return err
+		}
+	}
+
+	if _, err := fmt.Fprint(w, "\n"); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// serveSSE handles sending Server-Sent-Events.
+func serveSSE(c echo.Context) error {
+	// TODO: figure out how to retrieve IP from Forwarded header behind proxy: https://echo.labstack.com/docs/ip-address
+	c.Logger().Printf("SSE client connected, ip: %v", c.RealIP())
+
+	w := c.Response()
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+
+	// Connect to MPD server
+	mpdConn, err := mpd.Dial("tcp", "localhost:6600")
+	if err != nil {
+		c.Logger().Error(err)
+		event := Event{
+			Event: []byte("mpd"),
+			Data:  []byte(fmt.Sprintf("connection error: %s", err.Error())),
+		}
+		if err := event.MarshalTo(w); err != nil {
+			return err
+		}
+		w.Flush()
+		return nil
+	}
+	defer mpdConn.Close()
+
+	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
+
+	var lastJsonStatus []byte
+	var lastJsonCurrentSong []byte
+	var lastJsonQueue []byte
+	for {
+		select {
+		case <-c.Request().Context().Done():
+			c.Logger().Printf("SSE client disconnected, ip: %v", c.RealIP())
+			return nil
+		case <-ticker.C:
+			c.Logger().Printf("Getting MPD status for %v", c.RealIP())
+
+			status, err := mpdConn.Status()
+			if err != nil {
+				c.Logger().Error(err)
+			}
+			jsonStatus, err := json.Marshal(status)
+			if err != nil {
+				c.Logger().Error(err)
+			}
+			//c.Logger().Print("status " + string(jsonStatus))
+			// Only send new event if different from last time
+			if !bytes.Equal(jsonStatus, lastJsonStatus) {
+				statusEvent := Event{
+					Event: []byte("status"),
+					Data:  []byte(string(jsonStatus)),
+				}
+				if err := statusEvent.MarshalTo(w); err != nil {
+					return err
+				}
+				lastJsonStatus = jsonStatus
+			}
+
+			currentsong, err := mpdConn.CurrentSong()
+			if err != nil {
+				c.Logger().Error(err)
+			}
+			jsonCurrentSong, err := json.Marshal(currentsong)
+			if err != nil {
+				c.Logger().Error(err)
+			}
+			//c.Logger().Print("current_song " + string(jsonCurrentSong))
+			// Only send new event if different from last time
+			if !bytes.Equal(jsonCurrentSong, lastJsonCurrentSong) {
+				currentSongEvent := Event{
+					Event: []byte("currentsong"),
+					Data:  []byte(string(jsonCurrentSong)),
+				}
+				if err := currentSongEvent.MarshalTo(w); err != nil {
+					return err
+				}
+				lastJsonCurrentSong = jsonCurrentSong
+			}
+
+			queue, err := mpdConn.PlaylistInfo(-1, -1)
+			if err != nil {
+				c.Logger().Error(err)
+			}
+			jsonQueue, err := json.Marshal(queue)
+			if err != nil {
+				c.Logger().Error(err)
+			}
+			//c.Logger().Print("queue " + string(jsonQueue))
+			// Only send new event if different from last time
+			if !bytes.Equal(jsonQueue, lastJsonQueue) {
+				queueEvent := Event{
+					Event: []byte("queue"),
+					Data:  []byte(string(jsonQueue)),
+				}
+				if err := queueEvent.MarshalTo(w); err != nil {
+					return err
+				}
+				lastJsonQueue = jsonQueue
+			}
+
+			// Ping to prevent timeout
+			pingEvent := Event{
+				Comment: []byte("ping"),
+			}
+			if err := pingEvent.MarshalTo(w); err != nil {
+				return err
+			}
+
+			w.Flush()
+		}
+	}
+}

static/flexbox/index.html

@@ -3,8 +3,8 @@
 <head>
   <meta charset="UTF-8">
   <title>Sanic - Flexbox layout</title>
-  <link rel="stylesheet" href="../rangeinput.css">
+  <link rel="stylesheet" href="rangeinput.css">
-  <link rel="stylesheet" href="../treeview.css">
+  <link rel="stylesheet" href="treeview.css">
   <link rel="stylesheet" href="sanic.css">
 </head>
 <body>
@@ -158,6 +158,6 @@
     </div>
   </div>
 
-  <script src="../sanic.js"></script>
+  <script src="sanic.js"></script>
 </body>
 </html>

static/flexbox/treeview.css

@@ -0,0 +1,100 @@
+/* https://iamkate.com/code/tree-views/ */
+
+/* Custom properties */
+
+.tree {
+  --spacing : 1.0rem;
+  --radius  : 10px;
+}
+
+/* Padding */
+
+.tree li {
+  display      : block;
+  position     : relative;
+  padding-left : calc(2 * var(--spacing) - var(--radius) - 2px + 10px);
+}
+
+.tree ul {
+  margin-left  : calc(var(--radius) - var(--spacing));
+  padding-left : 0;
+}
+
+/* Vertical lines */
+
+.tree ul li {
+  border-left : 2px solid #ddd;
+}
+
+.tree ul li:last-child {
+  border-color : transparent;
+}
+
+/* Horizontal lines */
+
+.tree ul::before {
+  content      : '';
+  display      : block;
+  position     : absolute;
+  top          : calc(var(--spacing) - 8px);
+  left         : 6px;
+  width        : calc(var(--spacing) + 2px);
+  border       : solid #ddd;
+  border-width : 0 0 2px 2px;
+}
+
+.tree ul li::before {
+  content      : '';
+  display      : block;
+  position     : absolute;
+  top          : calc(var(--spacing) - 22px);
+  left         : -2px;
+  width        : calc(var(--spacing) + 2px);
+  height       : calc(var(--spacing) - 2px);
+  border       : solid #ddd;
+  border-width : 0 0 2px 2px;
+}
+
+/* Summaries */
+
+.tree summary {
+  display : block;
+  cursor  : pointer;
+}
+
+.tree summary::marker,
+.tree summary::-webkit-details-marker {
+  display : none;
+}
+
+.tree summary:focus {
+  outline : none;
+}
+
+.tree summary:focus-visible {
+  outline : 1px dotted #000;
+}
+
+/* Markers */
+
+.tree li::after,
+.tree summary::before {
+  content       : '\1F4C1';
+  display       : block;
+  position      : absolute;
+  top           : calc(var(--spacing) / 1.5 - var(--radius));
+  left          : calc(var(--spacing) - var(--radius) - 1px);
+  width         : calc(2 * var(--radius));
+  height        : calc(2 * var(--radius));
+}u
+
+/* Expand and collapse buttons */
+
+.tree summary::before {
+  z-index: 1;
+  content: '\1F4C1';
+}
+
+.tree details[open] > summary::before {
+  content: '\1F4C2';
+}

static/img/expand-collapse.svg

@@ -1,7 +0,0 @@
-<?xml version="1.0"?>
-<svg xmlns="http://www.w3.org/2000/svg" width="40" height="20">
-  <g fill="#fff">
-    <path d="m5 9h4v-4h2v4h4v2h-4v4h-2v-4h-4z"/>
-    <path d="m25 9h10v2h-10z"/>
-  </g>
-</svg>

static/index.html

@@ -0,0 +1,231 @@
+<!DOCTYPE html>
+<html lang="en" xmlns="http://www.w3.org/1999/html">
+<head>
+  <meta charset="UTF-8">
+  <title>Sanic</title>
+  <link rel="stylesheet" href="style.css">
+  <link rel="stylesheet" href="treeview.css">
+  <link rel="icon" href="favicon.ico" sizes="16x16 32x32 48x48 64x64" type="image/png">
+</head>
+<body>
+
+<dialog id="save-playlist">
+  <h1>Save Playlist</h1>
+  <button class="close">&times;</button>
+  <form method="dialog">
+    <label for="control-playlist-name">Name</label>
+    <input type="text" id="control-playlist-name" name="playlist-name" autofocus>
+    <button>Save</button>
+  </form>
+</dialog>
+
+<main>
+  <div id="nav">
+    <div id="control-admin">
+      <button id="connection-state">&#x274C; Disconnected</button> <!-- ❌ Cross Mark -->
+      <button>Config</button>
+      <button id="control-update-db" data-jobid="" disabled="disabled"><span class="loader"></span> Update DB</button>
+    </div><!--/#control-admin-->
+    <div>
+      <div class="spaced">
+        <button id="control-previous">&#x23EE;&#xFE0E;</button> <!-- ⏮️ Last Track Button -->
+        <button id="control-stop">&#x23F9;&#xFE0E;</button> <!-- ⏹️ Stop Button -->
+        <button id="control-play-pause">&#x23F5;&#xFE0E;</button> <!-- ▶️ Play or ⏸️ Pause Button -->
+        <button id="control-next">&#x23ED;&#xFE0E;</button> <!-- ⏭️ Next Track Button -->
+      </div><!--/.spaced-->
+      <div class="spaced">
+        <label for="control-progress"></label>
+        <input type="range" id="control-progress" name="progress" min="0" step="1" />
+      </div>
+    </div>
+    <div>
+      <div class="spaced">
+        <button id="control-repeat" data-state="off">&#x1F518; repeat</button> <!-- 🔘 Radio Button -->
+        <button id="control-shuffle" data-state="off">&#x1F518; shuffle</button> <!-- 🔘 Radio Button -->
+      </div><!--/.spaced-->
+      <div class="spaced">
+        <label for="control-xfade">xfade</label>
+        <div>
+          <button id="control-xfade-minus">&#x2796;</button> <!-- ➖ Minus -->
+          <input type="number" id="control-xfade" name="xfade" value="00" />
+          <button id="control-xfade-plus">&#x2795;</button> <!-- ➕ Plus -->
+        </div>
+      </div><!--/.spaced-->
+      <div class="spaced">
+        <button id="control-volume-down">&#x1F509;</button> <!-- 🔉 Speaker with sound wave -->
+        <input id="control-volume" name="volume" type="range" min="0" max="100" value="50" />
+        <button id="control-volume-up">&#x1F50A;</button> <!-- 🔊 Speaker with sound waves -->
+      </div><!--/.spaced-->
+    </div>
+    <div class="wide">
+      <div>
+        <label for="control-track">Now playing:</label>
+        <!--<input type="text" id="control-track" name="track" disabled="disabled" />-->
+        <div class="marquee" id="control-track" data-songid="">
+          <span></span>
+        </div>
+      </div>
+      <div>
+        <label for="control-time">Time:</label>
+        <input type="text" id="control-time" name="time" value="00:00:00/00:00:00" disabled="disabled" />
+      </div>
+    </div>
+    <div id="sanic-logo">
+      <div><!-- TODO: try to remove this div -->
+        <img alt="sanic logo" src="img/sanic-logo.webp" />
+        Sanic &copy; 2023
+      </div>
+    </div><!--/#sanic-logo-->
+  </div>
+  <div id="queue">
+    <table>
+      <thead>
+      <tr>
+        <th>Pos</th>
+        <th>Artists</th>
+        <th>Track</th>
+        <th>Album</th>
+        <th>Length</th>
+        <th>Actions</th>
+      </tr>
+      </thead>
+      <tbody></tbody>
+    </table>
+  </div><!--/#queue-->
+  <div id="browser">
+    <div id="tabs">
+      <a id="tab-browser" class="active" href="#">File Browser</a>
+      <a id="tab-search" href="#">Search</a>
+      <a id="tab-playlists" href="#">Playlists</a>
+    </div><!--/#tabs-->
+    <div id="file-browser">
+      <div>
+        <ul id="tree">
+          <li>
+            <input type="checkbox"/>
+            <span>00_music</span>
+            <ul>
+              <li>
+                <input checked type="checkbox"/>
+                <span>autosort</span>
+              </li>
+              <li>
+                <input checked type="checkbox"/>
+                <span>reimport</span>
+              </li>
+              <li>
+                <input checked type="checkbox"/>
+                <span>unsortable</span>
+              </li>
+              <li>
+                <input checked type="checkbox"/>
+                <span>youtube</span>
+              </li>
+            </ul>
+          </li>
+          <li>
+            <input checked type="checkbox"/>
+            <span>01_incoming</span>
+            <ul>
+              <li>
+                <input checked type="checkbox"/>
+                <span>coon</span>
+                <ul>
+                  <li>
+                    <input type="checkbox"/>
+                    <span>Rick Astley - Never Gonna Give You Up</span>
+                  </li>
+                  <li>
+                    <input type="checkbox"/>
+                    <span>Nyan Cat</span>
+                  </li>
+                </ul>
+              </li>
+              <li>
+                <input type="checkbox"/>
+                <span>cascha</span>
+              </li>
+              <li>
+                <input type="checkbox"/>
+                <span>XenGi</span>
+              </li>
+            </ul>
+          </li>
+          <li>
+            <input type="checkbox"/>
+            <span>02_megablast</span>
+            <ul>
+              <li>
+                <input checked type="checkbox"/>
+                <span>dnb</span>
+              </li>
+              <li>
+                <input checked type="checkbox"/>
+                <span>mix</span>
+              </li>
+            </ul>
+          </li>
+          <li>
+            <input type="checkbox"/>
+            <span>03_mfs</span>
+            <ul>
+              <li>
+                <input checked type="checkbox"/>
+                <span>ambient</span>
+              </li>
+              <li>
+                <input checked type="checkbox"/>
+                <span>electronic</span>
+              </li>
+            </ul>
+          </li>
+        </ul>
+      </div>
+      <div>
+        actions
+      </div>
+    </div><!--/#file-browser-->
+    <div id="search" style="display: none">
+      <div>
+        <input type="text" id="control-search-pattern" name="pattern">
+        <button id="control-search-submit">Search</button>
+      </div>
+      <div>
+        actions
+      </div>
+    </div><!--/#search-->
+    <div id="playlist-browser" style="display: none">
+      <label for="control-playlist-list"></label>
+      <select id="control-playlist-list" size="15">
+      </select><!--/#control-playlist-list-->
+      <div>
+        <button id="control-refresh-playlists">&#x1F504; Refresh</button><!-- 🔄 Counterclockwise Arrows Button -->
+        <button id="control-replace-playlist">&#x2934;&#xFE0F; Replace</button><!-- ⤴️ Arrow Pointing Rightwards Then Curving Upwards -->
+        <button id="control-attach-playlist">&#x2B06; Attach</button><!-- ⬆️ Up Arrow -->
+        <button id="control-save-playlist">&#x1F4BE; Save</button><!-- 💾 Floppy Disk -->
+        <button id="control-delete-playlist">&#x1F5D1;&#xFE0F; Delete</button><!-- 🗑️ Wastebasket -->
+      </div>
+    </div><!--/#playlist-browser-->
+  </div><!--/#browser-->
+  <div id="result">
+    <table>
+      <thead>
+      <tr>
+        <th>Artist</th>
+        <th>Title</th>
+        <th>Album</th>
+        <th>Genre</th>
+        <th>Time</th>
+      </tr>
+      </thead>
+      <tbody></tbody>
+    </table>
+  </div><!--/#result-->
+  <footer>
+    <a href="https://gitlab.com/XenGi/sanic"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 92 92"><defs><clipPath id="a"><path d="M0 .113h91.887V92H0Zm0 0"/></clipPath></defs><g clip-path="url(#a)"><path style="stroke:none;fill-rule:nonzero;fill:#ffffff;fill-opacity:1" d="M90.156 41.965 50.036 1.848a5.913 5.913 0 0 0-8.368 0l-8.332 8.332 10.566 10.566a7.03 7.03 0 0 1 7.23 1.684 7.043 7.043 0 0 1 1.673 7.277l10.183 10.184a7.026 7.026 0 0 1 7.278 1.672 7.04 7.04 0 0 1 0 9.957 7.045 7.045 0 0 1-9.961 0 7.038 7.038 0 0 1-1.532-7.66l-9.5-9.497V59.36a7.04 7.04 0 0 1 1.86 11.29 7.04 7.04 0 0 1-9.957 0 7.04 7.04 0 0 1 0-9.958 7.034 7.034 0 0 1 2.308-1.539V33.926a7.001 7.001 0 0 1-2.308-1.535 7.049 7.049 0 0 1-1.516-7.7L29.242 14.273 1.734 41.777a5.918 5.918 0 0 0 0 8.371L41.855 90.27a5.92 5.92 0 0 0 8.368 0l39.933-39.934a5.925 5.925 0 0 0 0-8.371"/></g></svg></a> Sanic MPD Web UI 0.1.0 - by XenGi and coon &copy; 2023
+  </footer>
+</main>
+<script src="index.js"></script>
+<script src="sse.js"></script>
+</body>
+</html>

static/index.js

@@ -0,0 +1,361 @@
+// Configuration
+
+const API_URL = `${document.location.protocol}//${document.location.host}/api`;
+const VOLUME_STEP = 5;
+
+// Get control elements
+
+const dialog_save_playlist = document.getElementById("save-playlist");
+const control_playlist_name = document.getElementById("control-playlist-name");
+const dialog_save_playlist_submit = document.querySelector("#save-playlist form button");
+const dialog_save_playlist_close = document.querySelector("#save-playlist .close");
+const connection_state = document.getElementById("connection-state");
+const control_update_db = document.getElementById("control-update-db");
+const control_previous = document.getElementById("control-previous");
+const control_play_pause = document.getElementById("control-play-pause");
+const control_stop = document.getElementById("control-stop");
+const control_next = document.getElementById("control-next");
+const control_progress = document.getElementById("control-progress");
+const control_repeat = document.getElementById("control-repeat");
+const control_shuffle = document.getElementById("control-shuffle");
+const control_xfade = document.getElementById("control-xfade");
+const control_xfade_minus = document.getElementById("control-xfade-minus");
+const control_xfade_plus = document.getElementById("control-xfade-plus");
+const control_volume = document.getElementById("control-volume");
+const control_volume_up = document.getElementById("control-volume-up");
+const control_volume_down = document.getElementById("control-volume-down");
+const queue_table = document.querySelector("#queue tbody");
+const control_track = document.getElementById("control-track");
+const control_time = document.getElementById("control-time");
+const tabs = document.getElementById("tabs");
+const tab_browser = document.getElementById("tab-browser");
+const tab_search = document.getElementById("tab-search");
+const tab_playlists = document.getElementById("tab-playlists");
+const control_playlist_list = document.getElementById("control-playlist-list");
+const control_refresh_playlists = document.getElementById("control-refresh-playlists");
+const control_replace_playlist = document.getElementById("control-replace-playlist");
+const control_attach_playlist = document.getElementById("control-attach-playlist");
+const control_save_playlist = document.getElementById("control-save-playlist");
+const control_delete_playlist = document.getElementById("control-delete-playlist");
+const result_table = document.querySelector("#result tbody");
+const control_search_pattern = document.getElementById("control-search-pattern");
+const control_search_submit = document.getElementById("control-search-submit");
+
+// Utility functions
+
+secondsToTrackTime = (t) => {
+  const hours = Math.floor(t / 3600);
+  const minutes = Math.floor((t - hours * 3600) / 60);
+  const seconds = Math.floor(t - hours * 3600 - minutes * 60);
+
+  return `${hours}:${minutes.toString().padStart(2, "0")}:${seconds.toString().padStart(2, "0")}`;
+}
+
+removeTrackFromQueue = (event) => {
+  const song_id = event.target.parentElement.parentElement.dataset.song_id;
+
+  console.log(`DEBUG: remove song id ${song_id} from queue`);
+  fetch(`${API_URL}/queue/${song_id}/delete`).then(r => {
+    console.log(r.text());
+  });
+}
+
+moveTrackInQueue = (event, direction) => {
+  const song_id = event.target.parentElement.parentElement.dataset.song_id;
+  // TODO: figure out position in queue by counting HTML elements?
+  const position = parseInt(event.target.parentElement.parentElement.firstChild.innerText);
+
+  console.log(`DEBUG: move song ${song_id} down in queue to position ${position + direction}`);
+  fetch(`${API_URL}/queue/${song_id}/move/${position + direction}`).then(r => {
+    console.log(r.text());
+  });
+}
+
+refreshPlaylists = () => {
+  console.log("Refreshing playlists from MPD server")
+  fetch(`${API_URL}/playlists`).then(async r => {
+    if (r.status === 200) {
+      const playlists = await r.json();
+      control_playlist_list.options.length = 0;  // clear playlists
+      playlists.forEach(p => {
+        const option = document.createElement("option")
+        option.innerText = p["playlist"];
+        option.value = p["playlist"];
+        option.addEventListener("click", () => {
+          fetch(`${API_URL}/playlists/${p["playlist"]}`).then(async r => {
+            if (r.status === 200) fillResultTable(await r.json());
+          })
+        });
+        control_playlist_list.appendChild(option)
+      });
+    }
+  });
+}
+
+fillResultTable = (songs) => {
+  result_table.innerHTML = "";
+  songs.forEach(song => {
+    const tr = document.createElement("tr");
+    const artist = document.createElement("td");
+    artist.innerText = song["Artist"];
+    const title = document.createElement("td");
+    title.innerText = song["Title"];
+    const time = document.createElement("td");
+    time.innerText = secondsToTrackTime(parseInt(song["Time"]))
+    tr.appendChild(artist);
+    tr.appendChild(title);
+    tr.appendChild(document.createElement("td")); // album
+    tr.appendChild(document.createElement("td")); // genre
+    tr.appendChild(time);
+    result_table.appendChild(tr);
+  });
+}
+
+// UI controls
+
+tab_browser.addEventListener("click", () => {
+  if (!tab_browser.classList.contains("active")) {
+    tab_browser.classList.add("active");
+    tab_search.classList.remove("active")
+    tab_playlists.classList.remove("active")
+    document.getElementById("file-browser").style.display = "block";
+    document.getElementById("search").style.display = "none";
+    document.getElementById("playlist-browser").style.display = "none";
+  }
+});
+
+tab_search.addEventListener("click", () => {
+  if (!tab_search.classList.contains("active")) {
+    tab_browser.classList.remove("active");
+    tab_search.classList.add("active")
+    tab_playlists.classList.remove("active")
+    document.getElementById("file-browser").style.display = "none";
+    document.getElementById("search").style.display = "block";
+    document.getElementById("playlist-browser").style.display = "none";
+  }
+});
+
+tab_playlists.addEventListener("click", () => {
+  refreshPlaylists();
+  if (!tab_playlists.classList.contains("active")) {
+    tab_browser.classList.remove("active");
+    tab_search.classList.remove("active")
+    tab_playlists.classList.add("active")
+    document.getElementById("file-browser").style.display = "none";
+    document.getElementById("search").style.display = "none";
+    document.getElementById("playlist-browser").style.display = "block";
+  }
+});
+
+// Show "Save playlist" modal
+control_save_playlist.addEventListener("click", () => {
+  dialog_save_playlist.showModal()
+});
+
+// Close "Save playlist" modal
+dialog_save_playlist_close.addEventListener("click", () => {
+  dialog_save_playlist.close()
+});
+
+
+// Add API calls to controls
+
+control_search_submit.addEventListener("click", event => {
+  event.preventDefault()
+  fetch(`${API_URL}/database/${control_search_pattern.value}`).then(async r => {
+    if (r.status === 200) {
+      fillResultTable([...new Set(await r.json())]);
+    } else {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  })
+});
+
+control_refresh_playlists.addEventListener("click", () => {
+  refreshPlaylists();
+});
+
+control_replace_playlist.addEventListener("click", () => {
+  fetch(`${API_URL}/queue/replace/${control_playlist_list.value}`).then(async r => {
+    if (r.status !== 200) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_attach_playlist.addEventListener("click", () => {
+  fetch(`${API_URL}/queue/attach/${control_playlist_list.value}`).then(async r => {
+    if (r.status !== 200) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+// Save current queue as new playlist and refresh playlist list
+dialog_save_playlist_submit.addEventListener("click", () => {
+  fetch(`${API_URL}/playlists/${control_playlist_name.value}`, {method: "POST"}).then(async r => {
+    if (r.status === 201) {
+      console.log(`Playlist "${control_playlist_name.value}" saved`)
+      refreshPlaylists()
+    } else {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_delete_playlist.addEventListener("click", () => {
+  const playlist_name = control_playlist_list.value;
+  fetch(`${API_URL}/playlists/${control_playlist_list.value}`, {method: "DELETE"}).then(r => {
+    if (r.status === 204) {
+      console.log(`Playlist "${playlist_name}" successfully deleted.`);
+      refreshPlaylists();
+    } else {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+// Add API calls to controls
+
+control_update_db.addEventListener("click", (event) => {
+  console.log("Issuing database update");
+  fetch(`${API_URL}/update_db`).then(async r => {
+    if (r.status === 200) {
+      // const idText = await r.text();
+      console.log(await r.text());
+      // event.target.dataset.jobid = idText.split(" ").pop();
+      // event.target.disabled = true;
+    } else {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_previous.addEventListener("click", () => {
+  fetch(`${API_URL}/previous_track`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_play_pause.addEventListener("click", event => {
+  if (event.target.innerHTML === "⏸︎") {  // Resume playback
+    fetch(`${API_URL}/pause`).then(async r => {
+      if (r.status >= 400) {
+        console.error(`API returned ${r.status}: ${r.statusText}`);
+      }
+    });
+  } else {  // Pause playback
+    fetch(`${API_URL}/play`).then(async r => {
+      if (r.status >= 400) {
+        console.error(`API returned ${r.status}: ${r.statusText}`);
+      }
+    });
+  }
+});
+
+control_stop.addEventListener("click", () => {
+  fetch(`${API_URL}/stop`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_next.addEventListener("click", () => {
+  fetch(`${API_URL}/next_track`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_progress.addEventListener("change", event => {
+  fetch(`${API_URL}/seek/${event.target.value}`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_progress.addEventListener("input", event => {
+  control_time.value = `${secondsToTrackTime(event.target.value)}/${secondsToTrackTime(event.target.max)}`;
+});
+
+control_repeat.addEventListener("click", event => {
+  if (event.target.dataset.state === "on") {  // TODO: check is never true
+    event.target.innerHTML = "🔘 repeat";
+    event.target.dataset.state = "off";
+  } else {
+    event.target.innerHTML = "🔴 repeat";
+    event.target.dataset.state = "on";
+  }
+  fetch(`${API_URL}/repeat`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_shuffle.addEventListener("click", event => {
+  if (event.target.dataset.state === "on") {  // TODO: check is never true
+    event.target.innerHTML = "🔘 shuffle";
+    event.target.dataset.state = "off";
+  } else {
+    event.target.innerHTML = "🔴 shuffle";
+    event.target.dataset.state = "on";
+  }
+  fetch(`${API_URL}/random`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_xfade_minus.addEventListener("click", () => {
+  // TODO: not yet implemented
+  fetch(`${API_URL}/xfade`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_xfade_plus.addEventListener("click", () => {
+  // TODO: not yet implemented
+  fetch(`${API_URL}/xfade`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});
+
+control_volume_up.addEventListener("click", () => {
+  const volume = Math.min(parseInt(control_volume.value) + VOLUME_STEP, 100);
+  fetch(`${API_URL}/volume/${volume}`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+  control_volume.value = volume;
+
+});
+
+control_volume_down.addEventListener("click", () => {
+  const volume = Math.max(parseInt(control_volume.value) - VOLUME_STEP, 0);
+  fetch(`${API_URL}/volume/${volume}`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+  control_volume.value = volume;
+});
+
+control_volume.addEventListener("change", event => {
+  fetch(`${API_URL}/volume/${event.target.value}`).then(async r => {
+    if (r.status >= 400) {
+      console.error(`API returned ${r.status}: ${r.statusText}`);
+    }
+  });
+});

static/sse.js

@@ -0,0 +1,178 @@
+// Server-Sent-Events
+
+if (typeof (EventSource) !== "undefined") {
+  const sse = new EventSource("/sse");
+  sse.addEventListener("status", handleStatus);
+  sse.addEventListener("currentsong", handleCurrentSong);
+  sse.addEventListener("queue", handleQueue);
+  sse.onmessage = (event) => {
+    console.log("sse message: " + event.data);
+  };
+  sse.onerror = (err) => {
+    console.error("EventSource failed:", err);
+    connection_state.innerHTML = "❌ Disconnected";  // ❌ Cross Mark
+  };
+  sse.onopen = () => {
+    console.log("EventSource connected");
+    connection_state.innerHTML = "✅ Connected";  // ✅ Check Mark Button
+  };
+} else {
+  console.error("Sorry, your browser does not support server-sent events...");
+}
+
+function handleStatus(event) {
+  const status = JSON.parse(event.data);
+
+  // print error if present
+  if ("error" in status) {
+    console.error(status.error);
+  }
+
+  // update "Update DB" button
+  if ("updating_db" in status) {
+    control_update_db.disabled = true;
+  } else {
+    if (control_update_db.disabled) {
+      console.log("Database update done.")
+    }
+    control_update_db.disabled = false;
+  }
+
+  // update play/pause button
+  // TODO: only update DOM if necessary
+  if ("state" in status && status.state !== "play") {
+    control_play_pause.innerHTML = "⏵︎";  // Play
+  } else {
+    control_play_pause.innerHTML = "⏸︎";  // Pause
+  }
+
+  if ("songid" in status) {
+    control_track.dataset.songid = status.songid;
+  }
+
+  // update playback time
+  if ("time" in status) {
+    const [elapsed, duration] = status.time.split(":", 2)
+    control_progress.value = elapsed;
+    control_progress.max = duration;
+    // triggers the update of control_time element
+    const e = new Event("input");
+    control_progress.dispatchEvent(e);
+  }
+
+  // update repeat state
+  if ("repeat" in status) {
+    if (status.repeat === "1") {
+      control_repeat.innerHTML = "🔴 repeat"; // 🔴 Red Circle
+      control_repeat.dataset.state = "on";
+    } else {
+      control_repeat.innerHTML = "🔘 repeat"; // 🔘 Radio Button
+      control_repeat.dataset.state = "off";
+    }
+  }
+
+  // update shuffle state
+  if ("random" in status) {
+    if (status.random === "1") {
+      control_shuffle.innerHTML = "🔴 shuffle"; // 🔴 Red Circle
+      control_shuffle.dataset.state = "on";
+    } else {
+      control_shuffle.innerHTML = "🔘 shuffle"; // 🔘 Radio Button
+      control_shuffle.dataset.state = "off";
+    }
+  }
+
+  // update crossfade state
+  if ("xfade" in status) {
+    control_xfade.value = status.xfade;
+  }
+
+  // update volume
+  if ("volume" in status) {
+    control_volume.value = status.volume;
+  }
+}
+
+function handleCurrentSong(event) {
+  const current_song = JSON.parse(event.data);
+
+  let track;
+  if ("Artist" in current_song && "Title" in current_song) {
+    track = `${current_song.Artist} - ${current_song.Title}`
+  } else {
+    track = current_song.file;
+  }
+  // Only replace if necessary to not interrupt the animation
+  if (control_track.innerHTML !== `<span>${track}</span>`) {
+    control_track.innerHTML = `<span>${track}</span>`;
+  }
+}
+
+function handleQueue(event) {
+  const queue = JSON.parse(event.data);
+
+  console.log(queue);
+
+  const tbody = document.createElement("tbody");
+  queue.forEach(song => {
+    const tr = document.createElement("tr");
+    tr.dataset.song_id = song.Id;
+    if (control_track.dataset.songid === song.Id) {
+      tr.classList.add("playing");
+    }
+    const pos = document.createElement("td");
+    pos.innerText = song.Pos;
+    const artist = document.createElement("td");
+    if ("Artist" in song) {
+      artist.innerText = song.Artist;
+    }
+    const track = document.createElement("td");
+    if ("Title" in song) {
+      track.innerText = song.Title;
+    } else {
+      track.innerText = song.file;
+    }
+    const album = document.createElement("td");
+    // TODO: Do songs have album info attached to them?
+    album.innerText = "";
+    const length = document.createElement("td");
+    length.innerText = secondsToTrackTime(song.duration);
+    const actions = document.createElement("td");
+    const moveUp = document.createElement("button");
+    moveUp.classList.add("borderless");
+    if (parseInt(song.Pos) !== 0) {
+      moveUp.innerHTML = "&#x1F53A;"; // 🔺 Red Triangle Pointed Down
+      moveUp.addEventListener("click", event => { moveTrackInQueue(event, -1) });
+    } else {
+      moveUp.innerHTML = "&emsp;";
+    }
+    const moveDown = document.createElement("button");
+    moveDown.classList.add("borderless");
+    if (parseInt(song.Pos) !== queue.length - 1) {
+      moveDown.innerHTML = "&#x1F53B;"; // 🔻 Red Triangle Pointed Up
+      moveDown.addEventListener("click", event => {moveTrackInQueue(event, 1)});
+    } else {
+      moveDown.innerHTML = "&emsp;";
+    }
+    const remove = document.createElement("button");
+    remove.classList.add("borderless");
+    remove.innerHTML = "&#x274C;"; // ❌ Cross mark
+    remove.addEventListener("click", removeTrackFromQueue);
+    actions.appendChild(moveUp);
+    actions.appendChild(moveDown);
+    actions.appendChild(remove);
+    tr.appendChild(pos);
+    tr.appendChild(artist);
+    tr.appendChild(track);
+    tr.appendChild(album);
+    tr.appendChild(length);
+    tr.appendChild(actions);
+    tbody.appendChild(tr);
+  });
+  const currentQueue = document.querySelector("#queue tbody")
+  // only update queue if necessary to not interrupt user interaction
+  if (currentQueue.innerHTML !== tbody.innerHTML) {
+    console.log("Updating queue")
+    currentQueue.outerHTML = tbody.outerHTML;
+  }
+}

static/style.css

@@ -0,0 +1,437 @@
+:root {
+  --ribbon-width: 160px;
+  --ribbon-height: 80px;
+
+  --background-color: #041936;
+  --text-color: #bbb;
+
+  --input-background-color: #28374a;
+  --input-border-light: #545454;
+  --input-border-dark: #3a3a3a;
+}
+
+/* #################### */
+/* #### structure ##### */
+/* #################### */
+
+html, body {
+  margin: 0;
+  height: 100%;
+}
+
+main {
+  height: 100%;
+  display: grid;
+  grid-auto-columns: 1fr;
+  grid-template-columns: 1fr 2fr;
+  grid-template-rows: var(--ribbon-height) 1fr 1fr;
+  gap: 0 0;
+  grid-template-areas: "nav nav" "queue queue" "browser result" "footer footer";
+}
+
+#queue {
+  grid-area: queue;
+  overflow: auto;
+}
+
+#nav {
+  grid-area: nav;
+  display: flex;
+}
+
+#nav > div {
+  width: var(--ribbon-width);
+}
+
+#result {
+  grid-area: result;
+  overflow: auto;
+}
+
+#browser {
+  grid-area: browser;
+}
+
+main footer {
+  grid-area: footer;
+  overflow: auto;
+  background-color: var(--background-color);
+  text-align: right;
+}
+
+table {
+  width: 100%;
+}
+
+#control-admin {
+  display: flex;
+  flex-direction: column;
+}
+
+#sanic-logo {
+  display: flex;
+  flex-grow: 1;
+  justify-content: flex-end;
+}
+
+#sanic-logo > div {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  text-align: center;
+}
+
+#sanic-logo img {
+  max-width: 75%;
+  max-height: 75%;
+  margin: auto;
+}
+
+.spaced {
+  display: flex;
+  justify-content: space-between;
+}
+
+/* #################### */
+/* ### pretty stuff ### */
+/* #################### */
+
+#control-progress {
+  width: var(--ribbon-width);
+}
+
+#control-volume {
+  width: 80px;
+}
+
+#nav > div.wide {
+  width: 280px;
+}
+
+#nav > div.wide div {
+  display: flex;
+  justify-content: space-between;
+}
+
+/* Disable arrows in input */
+
+/* Chrome, Safari, Edge, Opera */
+#control-xfade::-webkit-outer-spin-button,
+#control-xfade::-webkit-inner-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+/* Firefox */
+#control-xfade[type=number] {
+  -moz-appearance: textfield;
+}
+
+#control-xfade {
+  width: 2em;
+}
+
+#control-previous,
+#control-play-pause,
+#control-stop,
+#control-next {
+  width: 2.5em;
+  height: 2.5em;
+  text-align: center;
+}
+
+/*
+#control-track {
+  transform: translateX(100%);
+  -moz-transform: translateX(100%);
+  -webkit-transform: translateX(100%);
+  animation: scroll-left 20s linear infinite;
+  -moz-animation: scroll-left 2s linear infinite;
+  -webkit-animation: scroll-left 2s linear infinite;
+}
+
+@keyframes scroll-left {
+  0% {
+    transform: translateX(100%);
+    -moz-transform: translateX(100%);
+    -webkit-transform: translateX(100%);
+  }
+  100% {
+    transform: translateX(-100%);
+    -moz-transform: translateX(-100%);
+    -webkit-transform: translateX(-100%);
+  }
+}
+
+@-moz-keyframes scroll-left {
+  0% {
+    -moz-transform: translateX(100%);
+  }
+  100% {
+    -moz-transform: translateX(-100%);
+  }
+}
+
+@-webkit-keyframes scroll-left {
+  0% {
+    -webkit-transform: translateX(100%);
+  }
+  100% {
+    -webkit-transform: translateX(-100%);
+  }
+}
+*/
+
+html, body {
+  background-color: #09101d;
+  color: var(--text-color);
+  scrollbar-color: #490b00 #09101d;  /* only in firefox: https://developer.mozilla.org/en-US/docs/Web/CSS/scrollbar-color */
+  font-weight: normal;
+  font-family: Arial, Helvetica, sans-serif;
+  font-size: 12pt;
+}
+
+a {
+  color: var(--text-color);
+  text-decoration: none;
+}
+
+button {
+  background-color: var(--input-background-color);
+  color: var(--text-color);
+  border-top-color: var(--input-border-light);
+  border-right-color: var(--input-border-dark);
+  border-bottom-color: var(--input-border-dark);
+  border-left-color: var(--input-border-light);
+}
+
+button[disabled] {
+  color: var(--background-color);
+}
+
+button[disabled] .loader {
+  display: inline-block;
+}
+
+button .loader {
+  display: none;
+}
+
+.loader {
+  width: 10pt;
+  height: 10pt;
+  border: 3px solid var(--text-color);
+  border-bottom-color: transparent;
+  border-radius: 50%;
+  display: inline-block;
+  box-sizing: border-box;
+  animation: rotation 1s linear infinite;
+}
+
+@keyframes rotation {
+  0% {
+    transform: rotate(0deg);
+  }
+  100% {
+    transform: rotate(360deg);
+  }
+}
+
+/* borderless button used in queue */
+.borderless {
+  border: none;
+  background-color: inherit;
+  cursor: pointer;
+}
+
+input[type=text] {
+  background-color: var(--input-background-color);
+  color: var(--text-color);
+  border: 1px solid black;
+  border-right-color: var(--input-border-light);
+  border-bottom-color: var(--input-border-light);
+}
+
+.marquee {
+  display: flex;
+  position: relative;
+  overflow: hidden;
+  white-space: nowrap;
+  width: var(--ribbon-width);
+  font-size: 10pt;
+  background-color: var(--input-background-color);
+  color: var(--text-color);
+  border: 1px solid black;
+  border-right-color: var(--input-border-light);
+  border-bottom-color: var(--input-border-light);
+  container-type: inline-size;
+}
+
+.wide {
+  display: flex;
+  flex-direction: column;
+  justify-content: space-around;
+}
+
+.marquee > * {
+  -webkit-animation: marquee 10s linear infinite both alternate;
+  animation: marquee 10s linear infinite both alternate;
+}
+@-webkit-keyframes marquee {
+  to {
+    transform: translateX(min(100cqw - 100%, 0px));
+  }
+}
+@keyframes marquee {
+  to {
+    transform: translateX(min(100cqw - 100%, 0px));
+  }
+}
+
+#nav {
+  padding: 5px;
+  background: linear-gradient(0deg, rgba(3,7,11,1) 0%, rgba(14,27,43,1) 4%, rgba(41,55,74,1) 6%, rgba(18,35,56,1) 94%, rgba(40,68,104,1) 96%, rgba(168,182,200,1) 100%);
+}
+
+#nav > div {
+  border-right: 1px solid black;
+}
+
+thead {
+  background: #0F1D2F linear-gradient(0deg, rgba(15, 29, 47, 1) 0%, rgba(15, 29, 47, 1) 50%, rgba(7, 14, 23, 1) 100%);
+}
+
+th {
+  font-weight: bold;
+  padding: 2px 2px 2px 14px;
+  border: solid #1c2c1a;
+  border-width: 0 1px 0 0;
+  cursor: pointer;
+}
+
+/* show and hide action buttons on hover */
+tbody tr td button {
+  display: none;
+}
+
+tbody tr:hover td button {
+  display: inline-block;
+}
+
+/* fixed width for action buttons in queue so it doesn't change size when hovering */
+tbody tr td:last-of-type {
+  min-width: 6em;
+}
+
+tbody td.actions {
+  white-space: nowrap;
+}
+
+#queue {
+  border-bottom: 4px ridge #3a506b;
+}
+
+/* make arrow for currently playing song look nice */
+
+#queue table tr.playing td:first-of-type::before {
+  content: '\2BC8';  /* ⯈ Black Medium Right-Pointing Triangle Centred */
+}
+
+#queue table tr td:first-of-type {
+  text-align: right;
+  padding-right: 0.5em;
+}
+
+/* align times */
+
+#queue table tr td:nth-last-of-type(2) {
+  text-align: right;
+}
+
+table tr:nth-child(odd) td {
+  background-color: #1e1f1a;
+}
+
+table tr:nth-child(even) td {
+  background-color: #171812;
+}
+
+#queue table tr:nth-child(odd).playing td,
+#queue table tr:nth-child(even).playing td {
+  background-color: #490b00;
+}
+
+table tr:hover td {
+  background-color: #354158;
+}
+
+#tabs {
+  display: flex;
+}
+
+#tabs a {
+  width: 50%;
+  padding: 3pt;
+  display: inline-block;
+  text-align: center;
+  background-color: var(--input-background-color);
+  color: var(--text-color);
+  border: 1px solid var(--input-border-light);
+  border-top-left-radius: 5pt;
+  border-top-right-radius: 5pt;
+}
+
+#tabs a.active {
+  background-color: #1a1a1a;
+  color: var(--text-color);
+  border-bottom: none;
+}
+
+#browser {
+  background-color: #171812;
+  border-right: 4px ridge #3a506b;
+}
+
+#control-playlist-list {
+  font-size: 12pt;
+  width: 100%;
+  background-color: var(--input-background-color);
+  color: var(--text-color);
+  border: 1px solid black;
+  border-right-color: var(--input-border-light);
+  border-bottom-color: var(--input-border-light);
+  scrollbar-color: #490b00 #09101d;  /* only in firefox: https://developer.mozilla.org/en-US/docs/Web/CSS/scrollbar-color */
+}
+
+footer svg {
+  color: var(--text-color);
+  width: 12pt;
+  height: 12pt;
+}
+
+/*dialog {*/
+/*  position: fixed;*/
+/*  left: 50%;*/
+/*  top: 50%;*/
+/*  transform: translate(-50%, -50%);*/
+/*}*/
+
+dialog {
+  background-color: var(--background-color);
+  color: var(--text-color);
+}
+
+dialog .close {
+  position: absolute;
+  top: 1pt;
+  right: 1pt;
+}
+
+#control-search-pattern {
+  margin: 1em;
+}
+
+#search:first-child {
+  display: flex;
+  justify-content: space-between;
+}

static/test.html

@@ -0,0 +1,71 @@
+<!doctype html>
+<html>
+<head>
+  <title>API test</title>
+  <link rel="icon" href="/favicon.ico" sizes="16x16 32x32 48x48 64x64" type="image/png" />
+</head>
+<body>
+
+<textarea id="log"></textarea>
+
+<script>
+  // Create WebSocket connection.
+  const socket = new WebSocket("ws://localhost:1323/ws");
+
+  // Connection opened
+  socket.addEventListener("open", (event) => {
+    socket.send("Hello Server!");
+  });
+
+  // Listen for messages
+  socket.addEventListener("message", (event) => {
+    console.log("server: ", event.data);
+
+    if (typeof event.data === "object" && "mpd_status" in event.data) {
+      // {"consume":"0","mixrampdb":"0","partition":"default","playlist":"1","playlistlength":"0","random":"0","repeat":"0","single":"0","state":"stop","volume":"100"}
+
+      // random
+      if ("random" in event.data) {
+        const randomToggle = document.getElementById("randomToggle");
+        randomToggle.checked = event.data.random === "0";
+      }
+      // repeat
+      if ("repeat" in event.data) {
+        const repeatToggle = document.getElementById("repeatToggle");
+        repeatToggle.checked = event.data.repeat === "0";
+      }
+      // state
+      if ("state" in event.data) {
+        const playPauseButton = document.getElementById("playPauseButton");
+        switch (event.data.state) {
+          case "play":
+            playPauseButton.value = "||"
+            break;
+          case "stop":
+          case "pause":
+            playPauseButton.value = ">"
+            break;
+        }
+      }
+      // volume
+      if ("volume" in event.data) {
+        const volumeInput = document.getElementById("volumeInput");
+        volumeInput.value = event.data.volume
+      }
+      // current song
+      if ("elapsed" in event.data && "duration" in event.data) {
+        const seekTrackInput = document.getElementById("trackSeekInput");
+        seekTrackInput.max = event.data.duration;
+        seekTrackInput.value = event.data.elapsed;
+        const currentSongTimeText = document.getElementById("currentSongTimeText");
+        currentSongTimeText.text = event.data.elapsed + " | " + event.data.duration;
+      }
+    }
+  });
+
+  // window.setInterval(() => {
+  //   socket.send("#status")
+  // }, 1000);
+</script>
+</body>
+</html>

static/treeview.css

@@ -1,91 +1,150 @@
-/* https://iamkate.com/code/tree-views/ */
+/* https://codepen.io/defims/pen/DBaVXM */
 
-/* Custom properties */
+ul {
-
+  float: left;
-.tree {
+  clear: left;
-  --spacing : 1.0rem;
+  margin-left: .25em;
-  --radius  : 10px;
+  padding: 0;
 }
 
-/* Padding */
+ul:before {
-
+  content:"";
-.tree li {
+  position: absolute;
-  display      : block;
+  z-index: 1;
-  position     : relative;
+  top:.25em;
-  padding-left : calc(2 * var(--spacing) - var(--radius) - 2px + 10px);
+  right:auto;
+  bottom:0;
+  left: 1.75em;
+  margin: auto;
+  /* border-right: dotted white .1em; */
+  width: 0;
+  height: auto;
 }
 
-.tree ul {
+ul:after {
-  margin-left  : calc(var(--radius) - var(--spacing));
+  content: "-";
-  padding-left : 0;
+  position: absolute;
+  z-index: 3;
+  top: 0;
+  left: -.5em;
+  margin-left: .65em;
+  margin-top: .15em;
+  padding: 0;
+  width: .8em;
+  height: .8em;
+  text-align: center;
+  line-height: .7em;
+  font-size: 1em;
 }
 
-/* Vertical lines */
+ul > li {
-
+  display: block;
-.tree ul li {
+  position: relative;
-  border-left : 2px solid #ddd;
+  float: left;
+  clear: both;
+  right:auto;
+  padding-left: 1em;
+  width:auto;
+  text-align: center;
+  color:white;
 }
 
-.tree ul li:last-child {
+ul > li > input[type=checkbox] {
-  border-color : transparent;
+  display:block;
+  position: absolute;
+  float: left;
+  z-index: 4;
+  margin: 0 0 0 -1em;
+  padding: 0;
+  width:1em;
+  height: 2em;
+  font-size: 1em;
+  opacity: 0;
+  cursor: pointer;
 }
 
-/* Horizontal lines */
+ul > li > input[type=checkbox]:not(:checked)~ul:before {
-
+  display: none;
-.tree ul li::before {
-  content      : '';
-  display      : block;
-  position     : absolute;
-  top          : calc(var(--spacing) / -2);
-  left         : -2px;
-  width        : calc(var(--spacing) + 2px);
-  height       : calc(var(--spacing) + 1px);
-  border       : solid #ddd;
-  border-width : 0 0 2px 2px;
 }
 
-/* Summaries */
+ul > li > input[type=checkbox]:not(:checked)~ul:after {
-
+  content: "+"
-.tree summary {
-  display : block;
-  cursor  : pointer;
 }
 
-.tree summary::marker,
+ul > li > input[type=checkbox]:not(:checked)~ul * {
-.tree summary::-webkit-details-marker {
+  display: none;
-  display : none;
 }
 
-.tree summary:focus {
+ul > li > span {
-  outline : none;
+  display: block;
+  position: relative;
+  float: left;
+  z-index: 3;
+  margin-left: .25em;
+  padding-left: .25em;
 }
 
-.tree summary:focus-visible {
+ul > li > span:after {
-  outline : 1px dotted #000;
+  content: "";
+  display: block;
+  position: absolute;
+  left:-1em;
+  top:0;
+  bottom:0;
+  margin: auto .25em auto .25em;
+  /* border-top: dotted white .1em; */
+  width: .75em;
+  height: 0;
 }
 
-/* Markers */
+ul > li:last-child:before {
-
+  content: ""; display: block; position: absolute; z-index: 2;
-.tree li::after,
+  top:1em; left:0; bottom:-.25em;
-.tree summary::before {
+  width:.75em; height:auto;
-  content       : '';
-  display       : block;
-  position      : absolute;
-  top           : calc(var(--spacing) / 2 - var(--radius));
-  left          : calc(var(--spacing) - var(--radius) - 1px);
-  width         : calc(2 * var(--radius));
-  height        : calc(2 * var(--radius));
-  border-radius : 50%;
-  background    : #ddd;
 }
 
-/* Expand and collapse buttons */
+#tree {
-
+  position: relative; font-family: "Georgia";
-.tree summary::before {
-  z-index    : 1;
-  background : #696 url('img/expand-collapse.svg') 0 0;
 }
 
-.tree details[open] > summary::before {
+#tree:before {
-  background-position : calc(-2 * var(--radius)) 0;
+  left:.5em;
+}
+
+#tree:after {
+  display: none;
+}
+
+/* decoration */
+ul, ul > li:last-child:before {
+  background: transparent;
+}
+
+ul > li {
+  background: transparent;
+}
+
+ul:after {
+  background: linear-gradient(135deg, rgba(255,255,255,1), rgba(195,186,170,1));
+  color: black;
+  border:solid gray 1px;
+  border-radius: .1em;
+}
+
+ul > li > span {
+  border-radius: .25em;
+  color: white;
+}
+
+ul > li > input[type=checkbox]~span:before {
+  content:""; display: inline-block;
+  margin: 0 .25em  0 0;
+  width:1em; height: 1em; ;line-height: 1em;
+  content: '\1F4C1';
+  background-repeat:no-repeat;
+  background-size:contain;
+}
+
+ul > li > input[type=checkbox]:checked~span:before {
+  content: '\1F4C2';
 }