delete functionality

src/backend/src/playlist/playlist.controller.ts

@@ -1,4 +1,4 @@
-import {Body, Controller, Get, Post} from '@nestjs/common';
+import {Body, Controller, Delete, Get, Param, Post} from '@nestjs/common';
 import {PlaylistService} from "./playlist.service";
 import {PlaylistModel} from "./playlist.model";
 
@@ -19,4 +19,9 @@ export class PlaylistController {
     async create(@Body() playlist: PlaylistModel): Promise<void> {
         await this.service.create(playlist);
     }
+
+    @Delete(':id')
+    remove(@Param('id') id: number): Promise<void> {
+        return this.service.remove(id);
+    }
 }

src/backend/src/playlist/playlist.service.ts

@@ -30,6 +30,7 @@ export class PlaylistService {
 
     async remove(id: number): Promise<void> {
         await this.repository.delete(id);
+        this.io.emit('playlistDelete', {id});
     }
 
     async create(playlist: PlaylistEntity): Promise<void> {

src/backend/src/track/track.controller.ts

@@ -1,4 +1,4 @@
-import {Controller, Get, Param, Res, StreamableFile} from '@nestjs/common';
+import {Controller, Delete, Get, Param, Res, StreamableFile} from '@nestjs/common';
 import {TrackService} from "./track.service";
 import {TrackModel} from "./track.model";
 import {createReadStream} from "fs";
@@ -30,4 +30,9 @@ export class TrackController {
         res.set({'Content-Disposition': `attachment; filename="${track.artist} - ${track.song}.mp3"`,});
         return new StreamableFile(file);
     }
+
+    @Delete(':id')
+    remove(@Param('id') id: number): Promise<void> {
+        return this.service.remove(id);
+    }
 }

src/backend/src/track/track.entity.ts

@@ -29,6 +29,6 @@ export class TrackEntity {
     @Column({default: Date.now()})
     createdAt?: number;
 
-    @ManyToOne(() => PlaylistEntity, playlist => playlist.tracks)
+    @ManyToOne(() => PlaylistEntity, playlist => playlist.tracks, {onDelete: "CASCADE"})
     playlist?: PlaylistEntity;
 }

src/backend/src/track/track.service.ts

@@ -40,6 +40,7 @@ export class TrackService {
 
     async remove(id: number): Promise<void> {
         await this.repository.delete(id);
+        this.io.emit('trackDelete', {id});
     }
 
     async create(track: TrackEntity, playlist?: PlaylistEntity): Promise<void> {