From aeaef11341e60ab66196f44259828dd12df2fb14 Mon Sep 17 00:00:00 2001
From: "Ricardo (XenGi) Band" <email@ricardo.band>
Date: Thu, 18 Apr 2024 11:46:09 +0200
Subject: [PATCH] add replace playlist feature

---
 NOTES.md        |  8 +++++---
 mpd.go          | 24 ++++++++++++++++++++++++
 server.go       |  1 +
 static/index.js | 14 +++++++-------
 4 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/NOTES.md b/NOTES.md
index 03f80fc..b8f027b 100644
--- a/NOTES.md
+++ b/NOTES.md
@@ -45,8 +45,8 @@
   - [ ] Select tracks in results
   - [ ] `Add` selected tracks to queue button
 - Playlist browser
-  - [ ] Show current playlists
-  - [ ] `Replace` current queue with playlist button
+  - [x] Show current playlists
+  - [x] `Replace` current queue with playlist button
   - [ ] `Attach` playlist to current queue button
   - [ ] `Save` current queue as playlist button
     - [x] Show dialog
@@ -77,8 +77,10 @@
   - [ ] 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`
   - [ ] `/api/list_database/:path`
-  - [ ] `/api/list_playlists`
+  - [x] GET `/api/playlists`
+  - [x] GET `/api/playlists/:name`
   - [ ] `/api/save_playlist`
   - [ ] `/api/delete_playlist`
 
diff --git a/mpd.go b/mpd.go
index 0ad537b..5ea21fe 100644
--- a/mpd.go
+++ b/mpd.go
@@ -311,3 +311,27 @@ func listPlaylist(c echo.Context) error {
 
 	return c.JSON(http.StatusOK, playlist)
 }
+
+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, "")
+}
diff --git a/server.go b/server.go
index 4784dc1..67baad6 100644
--- a/server.go
+++ b/server.go
@@ -91,6 +91,7 @@ func main() {
 
 	g.GET("/queue/:song_id/delete", deleteTrackFromQueue)
 	g.GET("/queue/:song_id/move/:position", moveTrackInQueue)
+	g.GET("/queue/replace/:playlist_name", replaceQueue)
 
 	g.GET("/playlists", listPlaylists)
 	g.GET("/playlists/:name", listPlaylist)
diff --git a/static/index.js b/static/index.js
index 6acf687..4ffcb18 100644
--- a/static/index.js
+++ b/static/index.js
@@ -118,15 +118,15 @@ dialog_save_playlist_close.addEventListener("click", () => {
 
 // Add API calls to controls
 
-control_replace_playlist.addEventListener("click", e => {
-  fetch(`${API_URL}/`).then(async r => {
+control_replace_playlist.addEventListener("click", () => {
+  fetch(`${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", e => {
+control_attach_playlist.addEventListener("click", () => {
   fetch(`${API_URL}/`).then(async r => {
     if (r.status !== 200) {
       console.error(`API returned ${r.status}: ${r.statusText}`);
@@ -153,7 +153,7 @@ control_delete_playlist.addEventListener("click", () => {
   });
 });
 
-tab_browser.addEventListener("click", e => {
+tab_browser.addEventListener("click", () => {
   if (!tab_browser.classList.contains("active")) {
     tab_browser.classList.add("active");
     tab_search.classList.remove("active")
@@ -164,7 +164,7 @@ tab_browser.addEventListener("click", e => {
   }
 });
 
-tab_search.addEventListener("click", e => {
+tab_search.addEventListener("click", () => {
   if (!tab_search.classList.contains("active")) {
     tab_browser.classList.remove("active");
     tab_search.classList.add("active")
@@ -175,7 +175,7 @@ tab_search.addEventListener("click", e => {
   }
 });
 
-tab_playlists.addEventListener("click", e => {
+tab_playlists.addEventListener("click", () => {
   fetch(`${API_URL}/playlists`).then(async r => {
     if (r.status === 200) {
       const playlists = await r.json();
@@ -224,7 +224,7 @@ tab_playlists.addEventListener("click", e => {
 
 // Add API calls to controls
 
-control_update_db.addEventListener("click", e => {
+control_update_db.addEventListener("click", () => {
   console.log("Issuing database update")
   fetch(`${API_URL}/update_db`).then(async r => {
     if (r.status === 200) {