add replace playlist feature

NOTES.md

@@ -45,8 +45,8 @@
   - [ ] Select tracks in results
   - [ ] `Add` selected tracks to queue button
 - Playlist browser
-  - [ ] Show current playlists
+  - [x] Show current playlists
-  - [ ] `Replace` current queue with playlist button
+  - [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`
 

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, "")
+}

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)

static/index.js

@@ -118,15 +118,15 @@ dialog_save_playlist_close.addEventListener("click", () => {
 
 // Add API calls to controls
 
-control_replace_playlist.addEventListener("click", e => {
+control_replace_playlist.addEventListener("click", () => {
-  fetch(`${API_URL}/`).then(async r => {
+  fetch(`${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) {