Add the skeleton of the createPlaylist Subsonic endpoint

sqls/migrations/010_playlists.sql

@@ -1,5 +1,4 @@
--- migrate Up
-
+-- +migrate Up
 CREATE TABLE IF NOT EXISTS `playlists` (
     `id` integer not null primary key,
     `name` text not null,
@@ -9,5 +8,16 @@ CREATE TABLE IF NOT EXISTS `playlists` (
     `updated_at` integer not null
 );
 
--- migrate Down
+CREATE TABLE IF NOT EXISTS `playlists_tracks` (
+    `playlist_id` integer not null,
+    `track_id` integer not null,
+    `order` integer not null default 0,
+    FOREIGN KEY(playlist_id) REFERENCES playlists(id) ON UPDATE CASCADE ON DELETE CASCADE,
+    FOREIGN KEY(track_id) REFERENCES tracks(id) ON UPDATE CASCADE ON DELETE CASCADE
+);
+
+create unique index if not exists playlist_pairs on `playlists_tracks` ('playlist_id', `track_id`);
+
+-- +migrate Down
 drop table if exists `playlists`;
+drop table if exists `playlists_tracks`;

src/webserver/subsonic/create_playlist.go

@@ -0,0 +1,35 @@
+package subsonic
+
+import (
+	"net/http"
+	"strconv"
+)
+
+func (s *subsonic) createPlaylist(w http.ResponseWriter, req *http.Request) {
+	if playlistID := req.Form.Get("playlistId"); playlistID != "" {
+		s.cretePlaylistUpdate(w, req)
+	} else {
+		s.cretePlaylistNew(w, req)
+	}
+}
+
+func (s *subsonic) cretePlaylistNew(w http.ResponseWriter, req *http.Request) {
+	name := req.Form.Get("name")
+	if name == "" {
+		resp := responseError(errCodeMissingParameter, "playlist name is required")
+		encodeResponse(w, req, resp)
+		return
+	}
+
+}
+
+func (s *subsonic) cretePlaylistUpdate(w http.ResponseWriter, req *http.Request) {
+	playlistID, err := strconv.ParseInt(req.Form.Get("playlistId"), 10, 64)
+	if err != nil {
+		resp := responseError(errCodeNotFound, "playlist not found")
+		encodeResponse(w, req, resp)
+		return
+	}
+
+	_ = playlistID
+}

src/webserver/subsonic/index.go

@@ -118,6 +118,7 @@ func (s *subsonic) initRouter() {
 	setUpHandler("/deleteInternetRadioStation", s.deleteInternetRadioStation)
 	setUpHandler("/getUser", s.getUser)
 	setUpHandler("/getRandomSongs", s.getRandomSongs)
+	setUpHandler("/createPlaylist", s.createPlaylist)
 
 	s.mux = s.authHandler(router)
 }