Merge branch 'main' of https://repos.hackathon.bz.it/2025-summer/team-1

backend/src/app.py

@@ -1,17 +1,17 @@
 import uuid
 from dataclasses import asdict
-
 import dotenv
 from flask import Flask, Response, jsonify, request
 from flask_cors import CORS
 from flask_socketio import SocketIO, join_room, leave_room
 
-from .connect import get_connection
-from .qrcode_gen import generate_qr
-from .room import Room
-from .song import Song, add_song_in_db, get_song_by_title_artist, init_db
-from .song_fetch import download_song_mp3, lastfm_query_search
 from .state import State
+from .connect import get_connection
+from .room import Room
+from .song import Song, init_db, get_song_by_title_artist, add_song_in_db, get_song_by_uuid
+from .song_fetch import lastfm_query_search, yt_get_audio_url, yt_search_song
+from .qrcode_gen import generate_qr
+
 
 dotenv.load_dotenv()
 
@@ -33,9 +33,9 @@ state.rooms[1000] = Room(
     pin=None,
     tags=set(),
     range_size=100,
-    songs={"b": (Song(uuid="b", title="title", artist="art", tags=["a", "B"], image_id="img", youtube_id="yt"), 1)},
+    songs={},
     history=[],
-    playing=[Song(uuid="<uuid>", title="<title>", artist="<artist>", tags=[], image_id="<img>", youtube_id="<yt>")],
+    playing=[],
     playing_idx=0,
 )
 
@@ -110,15 +110,16 @@ def queue_next():
 
     if room.playing_idx >= len(room.playing):
         ## queue ended
+        room.renew_queue()
+        ended = True
+    else:
+        ended = False
 
-        # room.renew_queue()
+    data = {"success": True, "ended": ended, "index": room.playing_idx, "queue": [asdict(s) for s in room.playing]}
-        data = {"success": True, "ended": True, "index": room.playing_idx, "queue": room.playing}
+    state.socketio.emit("queue_update", data, to=str(room.id))
-        state.socketio.emit("new_queue", data, to=str(room.id))
 
     return data
 
-    return {"success": True, "ended": False, "index": room.playing_idx}
-
 
 @app.post("/api/room/new")
 def room_new():
@@ -185,8 +186,7 @@ def add_song():
 
     if (song := get_song_by_title_artist(info.title, info.artist)) is None:
         ## song not found, downolad from YT
-        if (res := download_song_mp3(info.title, info.artist)) is None:
+        yt_video_id = yt_search_song(info.title, info.artist)
-            return error("Cannot get info from YT")
 
         ## add in DB
         song = Song(
@@ -195,7 +195,7 @@ def add_song():
             artist=info.artist,
             tags=info.tags,
             image_id=info.img_id,
-            youtube_id=res[0],
+            youtube_id=yt_video_id,
         )
 
         add_song_in_db(song)
@@ -203,7 +203,7 @@ def add_song():
     ## add the song in the room if does not exists
     if song.uuid not in room.songs:
         room.songs[song.uuid] = (song, 1)  # start with one vote
-        socketio.emit("new_song", {"song": song, "user_score": 1}, to=str(room.id))
+        socketio.emit("new_song", {"song": asdict(song) | {"upvote": 1}}, to=str(room.id))
 
     return {"success": True, "song": song}
 
@@ -235,7 +235,7 @@ def post_song_vote():
 
     ## update the song
     room.songs[song_id] = (song_info[0], song_info[1] + int(request.args["increment"]))
-    socketio.emit("new_vote", {"song": song_info[0], "user_score": song_info[1]})
+    socketio.emit("new_vote", {"song": asdict(song_info[0]) | {"upvote": song_info[1]}})
 
     return {"success": True}
 
@@ -257,5 +257,19 @@ def room_qrcode():
     return Response(stream, content_type="image/jpeg")
 
 
+@app.get("/api/song/audio")
+def get_audio_url():
+    if (song_uuid := request.args.get("song")) is None:
+        return error("Missing song id")
+
+    if (song := get_song_by_uuid(song_uuid)) is None:
+        return error("Song not found")
+
+    if (url := yt_get_audio_url(song.youtube_id)) is None:
+        return error("Cannot get audio url")
+
+    return {"success": True, "url": url}
+
+
 if __name__ == "__main__":
     socketio.run(app, debug=True)

backend/src/song_fetch.py

@@ -59,7 +59,7 @@ def lastfm_query_search(query: str) -> SongInfo:
     return SongInfo(artist=artist, title=name, img_id=img_id, tags=tags)
 
 
-def download_song_mp3(name: str, artist: str) -> tuple[str, str] | None:  # ( id, audio )
+def yt_search_song(name: str, artist: str) -> str:  # video id
     ydl_opts = {
         "format": "bestaudio",
         "default_search": "ytsearch1",
@@ -70,12 +70,27 @@ def download_song_mp3(name: str, artist: str) -> tuple[str, str] | None:  # ( id
     with yt_dlp.YoutubeDL(ydl_opts) as ydl:
         info = ydl.extract_info(f"{name!r} - {artist!r}", download=False)
 
-    first_entry = info["entries"][0]
+    return info["entries"][0]["id"]
 
-    video_id = first_entry["id"]
+
+def yt_get_audio_url(video_id) -> str | None:  # audio url
+    ydl_opts = {
+        "format": "bestaudio",
+        "default_search": "ytsearch1",
+        "outtmpl": "%(title)s.%(ext)s",
+        "skip_download": True,
+    }
+
+    with yt_dlp.YoutubeDL(ydl_opts) as ydl:
+        info = ydl.extract_info(video_id, download=False)
+
+    if "entries" not in info:
+        return info["url"]
+
+    first_entry = info["entries"][0]
 
     for fmt in first_entry["formats"]:
         if "acodec" in fmt and fmt["acodec"] != "none":
-            return video_id, fmt["url"]
+            return fmt["url"]
 
     return None

frontend/src/lib/components/Error.svelte

@@ -1,8 +1,10 @@
 <script lang="ts">
-    let { code, message } = $props()
+    import type { FetchError } from "$lib/types"
+
+    let { returnError }: { returnError: FetchError } = $props()
 </script>
 
 <div class="flex h-screen w-full flex-col items-center justify-center">
-    <h1 class="p-2 text-xl">Error {code}</h1>
+    <h1 class="p-2 text-xl">Error {returnError.code}</h1>
-    <p>{message}</p>
+    <p>{returnError.message}</p>
 </div>

frontend/src/lib/components/QueueSlider.svelte

@@ -1,12 +1,12 @@
 <script lang="ts">
     import { type Song, createEmptySong } from "$lib/types"
 
-    let { songs, playing } = $props()
+    let { queueSongs, playingIndex } = $props()
 
     let displaySongs = $derived<Song[]>([
-        playing > 0 && playing < songs.length ? songs[playing - 1] : createEmptySong(),
+        playingIndex > 0 ? queueSongs[playingIndex - 1] : createEmptySong(),
-        songs[playing],
+        queueSongs[playingIndex],
-        playing == songs.length - 1 ? createEmptySong() : songs[playing + 1],
+        playingIndex == queueSongs.length - 1 ? createEmptySong() : queueSongs[playingIndex + 1],
     ])
 </script>
 

frontend/src/lib/components/SuggestionInput.svelte

@@ -9,7 +9,11 @@
     }
 </script>
 
-<div class="flex h-full w-full flex-row items-center gap-2 rounded border-2 border-black p-4">
+<div class="bg-lime-500 flex h-full w-full flex-row items-center gap-2 rounded border-2 border-lime-600">
-    <input type="text" placeholder="Song & Artist" class="h-full w-3/4 rounded" bind:value={input} />
+    <input type="text" placeholder="Song & Artist" class="font-bold outline-none text-white h-[50px] px-4 w-3/4 rounded" bind:value={input} />
-    <button class="w-1/4 rounded" onclick={sendSong}>Send</button>
+    <button
+        class="shadow-xl hover:scale-105 w-1/4 h-[40px] cursor-pointer bg-lime-600 border-lime-700 font-semibold text-white border-2 i-lucide-check rounded active:scale-90 duration-100"
+        onclick={sendSong}>Add</button
+    >
+    <span class="i-lucide-chevrons-left"></span>
 </div>

frontend/src/lib/components/SuggestionList.svelte

@@ -3,29 +3,39 @@
 
     let { suggestions, roomId }: { suggestions: Suggestion[]; roomId: string } = $props()
 
-    async function vote(amount: number, songId: string) {
+    async function vote(idx: number, amount: number, songId: string) {
+        suggestions[idx].upvote += amount
         await fetch(`/api/song/voting?room=${roomId}&song=${songId}&increment=${amount}`, { method: "POST" })
     }
 </script>
 
 <div class="flex h-full w-full flex-col items-center gap-2 overflow-y-auto">
-    {#each suggestions as sug}
+    {#if suggestions.length == 0}
-        <div class="flex h-[80px] w-full flex-row gap-2 rounded border-2 border-black p-2">
+        <p>No suggestions yet! Try to add a new one using the <b>Add</b> button</p>
+    {/if}
+
+    {#each suggestions as sug, idx}
+        <div class="shadow-md hover:bg-indigo-400 duration-100 bg-indigo-500 flex h-[80px] w-full flex-row gap-2 rounded border-2 border-indigo-600 p-2">
             <div class="flex w-3/4 flex-row gap-2">
                 <img class="w-[60px] min-w-[60px] rounded" src={`https://lastfm.freetls.fastly.net/i/u/174s/${sug.image_id}.png`} alt="Song cover" />
-                <h1>{sug.title} - {sug.artist}</h1>
+                <div class="text-white">
+                    <p>{sug.title}</p>
+                    <p>{sug.artist}</p>
+                </div>
             </div>
             <div class="flex w-1/4 flex-row items-center justify-center gap-2">
                 <button
+                    class="grayscale"
                     onclick={() => {
-                        vote(1, sug.uuid)
+                        vote(idx, 1, sug.uuid)
-                    }}>+1</button
+                    }}>👍</button
                 >
-                <p>{sug.upvote}</p>
+                <p class="text-white font-semibold">{sug.upvote}</p>
                 <button
+                    class="hover:scale-150 duration-100"
                     onclick={() => {
-                        vote(-1, sug.uuid)
+                        vote(idx, -1, sug.uuid)
-                    }}>-1</button
+                    }}><div class="rotate-180">👍</div></button
                 >
             </div>
         </div>

frontend/src/lib/types.ts

@@ -35,3 +35,8 @@ export const parseSuggestion = async function (sugg: any): Promise<Suggestion> {
     let resp = await SuggestionSchema.parseAsync(sugg)
     return resp
 }
+
+export type FetchError = {
+    code: number
+    message: string
+}

frontend/src/lib/utils.ts

@@ -0,0 +1,69 @@
+import { parseSong, parseSuggestion, type FetchError, type Song, type Suggestion } from "./types"
+
+export const joinRoom = async function (roomId: string): Promise<[FetchError | null, string]> {
+    let resp = await fetch("/api/join?room=" + roomId)
+
+    if (resp.status != 200) {
+        return [{ code: 400, message: "Cannot join the room" }, ""]
+    }
+
+    return [null, "test"]
+}
+
+export const getSuggestions = async function (roomId: string): Promise<[FetchError | null, Suggestion[]]> {
+    let resp = await fetch("/api/room/suggestions?room=" + roomId)
+
+    if (resp.status != 200) {
+        return [{ code: 400, message: "Failed to retrieve suggestions" }, []]
+    }
+
+    let json = await resp.json()
+    let suggestions: Suggestion[] = []
+
+    json["songs"].forEach(async (i: any) => {
+        suggestions.push(await parseSuggestion(i))
+    })
+
+    suggestions = suggestions.sort((a, b) => {
+        return a.upvote - b.upvote
+    })
+
+    return [null, suggestions]
+}
+
+export const getQueueSongs = async function (roomId: string): Promise<[FetchError | null, Song[], number]> {
+    let resp = await fetch("/api/queue?room=" + roomId)
+    if (resp.status != 200) {
+        return [{ code: 400, message: "Failed to load queue songs" }, [], 0]
+    }
+
+    let json = await resp.json()
+    let songs: Song[] = []
+
+    json["queue"].forEach(async (i: any) => {
+        songs.push(await parseSong(i))
+    })
+
+    let playingId = json["index"]
+
+    return [null, songs, playingId]
+}
+
+export const triggerPlayNext = async function (roomId: string): Promise<[FetchError | null, Song[], number]> {
+    let resp = await fetch("/api/queue/next?room=" + roomId, { method: "POST" })
+
+    if (resp.status != 200) {
+        return [{ code: 400, message: "Failed to trigger next song playback" }, [], 0]
+    }
+
+    let json = await resp.json()
+
+    let songs: Song[] = []
+
+    if (json["ended"]) {
+        json["queue"].forEach(async (i: any) => {
+            songs.push(await parseSong(i))
+        })
+    }
+    return [null, songs, json["index"]]
+}

frontend/src/routes/admin/[id]/+page.svelte

@@ -1,37 +1,43 @@
 <script lang="ts">
     import QueueSlider from "$lib/components/QueueSlider.svelte"
+    import { type Song } from "$lib/types"
+    import { onMount } from "svelte"
+    import type { FetchError } from "$lib/types"
+    import { getQueueSongs, triggerPlayNext } from "$lib/utils.js"
 
-    let songs = $state([
+    let { data } = $props()
-        {
-            name: "Cisco PT - Cantarex",
-            image: "https://s2.qwant.com/thumbr/474x474/5/9/bcbd0c0aeb1838f6916bf452c557251d7be985a13449e49fccb567a3374d4e/OIP.pmqEiKWv47zViDGgPgbbQAHaHa.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.pmqEiKWv47zViDGgPgbbQAHaHa%3Fr%3D0%26pid%3DApi&q=0&b=1&p=0&a=0",
-            points: 0,
-        },
-        {
-            name: "Io e i miei banchi - Paul Ham",
-            image: "https://i.prcdn.co/img?regionKey=RbtvKb5E1Cv4j1VWm2uGrw%3D%3D",
-            points: 0,
-        },
-        {
-            name: "Ragatthi - Bersatetthi",
-            image: "https://s2.qwant.com/thumbr/474x474/5/9/bcbd0c0aeb1838f6916bf452c557251d7be985a13449e49fccb567a3374d4e/OIP.pmqEiKWv47zViDGgPgbbQAHaHa.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.pmqEiKWv47zViDGgPgbbQAHaHa%3Fr%3D0%26pid%3DApi&q=0&b=1&p=0&a=0",
-            points: 0,
-        },
-        {
-            name: "Quarta",
-            image: "https://s2.qwant.com/thumbr/474x474/5/9/bcbd0c0aeb1838f6916bf452c557251d7be985a13449e49fccb567a3374d4e/OIP.pmqEiKWv47zViDGgPgbbQAHaHa.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.pmqEiKWv47zViDGgPgbbQAHaHa%3Fr%3D0%26pid%3DApi&q=0&b=1&p=0&a=0",
-            points: 0,
-        },
-        {
-            name: "Quinta",
-            image: "https://s2.qwant.com/thumbr/474x474/5/9/bcbd0c0aeb1838f6916bf452c557251d7be985a13449e49fccb567a3374d4e/OIP.pmqEiKWv47zViDGgPgbbQAHaHa.jpg?u=https%3A%2F%2Ftse.mm.bing.net%2Fth%2Fid%2FOIP.pmqEiKWv47zViDGgPgbbQAHaHa%3Fr%3D0%26pid%3DApi&q=0&b=1&p=0&a=0",
-            points: 0,
-        },
-    ])
 
-    let playing = $state(1)
+    let queueSongs = $state<Song[]>([])
+    let playingIndex = $state<number>()
+    let returnError = $state<FetchError | null>()
+
+    onMount(async () => {
+        let songs, index
+        ;[returnError, songs, index] = await getQueueSongs(data.roomId)
+
+        queueSongs = songs
+
+        playingIndex = index
+    })
+
+    $effect(() => {
+        $inspect(queueSongs)
+    })
+
+    async function playNext() {
+        let songs, index
+        ;[returnError, songs, index] = await triggerPlayNext(data.roomId)
+
+        if (returnError) return
+
+        if (songs.length != 0) queueSongs = songs
+        playingIndex = index
+    }
 </script>
 
+{returnError}
+
 <div class="flex w-full flex-col items-center justify-center p-4 lg:p-10">
-    <QueueSlider {songs} {playing} />
+    <QueueSlider {queueSongs} {playingIndex} />
+    <button onclick={playNext}>Next</button>
 </div>

frontend/src/routes/admin/[id]/+page.ts

@@ -0,0 +1,11 @@
+import { error } from "@sveltejs/kit"
+import type { PageLoad } from "../../room/[id]/$types"
+
+export const load: PageLoad = function ({ params }) {
+    if (params.id) {
+        return {
+            roomId: params.id,
+        }
+    }
+    error(400, "Please provide a room id")
+}

frontend/src/routes/room/[id]/+page.svelte

@@ -2,73 +2,56 @@
     import QueueSlider from "$lib/components/QueueSlider.svelte"
     import SuggestionInput from "$lib/components/SuggestionInput.svelte"
     import Error from "$lib/components/Error.svelte"
-    import { parseSong, parseSuggestion, type Suggestion, type Song } from "$lib/types.js"
+    import { type Suggestion, type Song } from "$lib/types.js"
     import { onMount } from "svelte"
     import SuggestionList from "$lib/components/SuggestionList.svelte"
+    import { getQueueSongs, getSuggestions, joinRoom } from "$lib/utils.js"
+    import type { FetchError } from "$lib/types.js"
     import { io } from "socket.io-client"
 
     let { data } = $props()
 
-    let songs = $state<Song[]>([])
+    let queueSongs = $state<Song[]>([])
-    let playing = $state(0)
+    let playingIndex = $state(0)
 
     let suggestions = $state<Suggestion[]>([])
 
-    let error = $state({ code: 0, message: "" })
+    let returnError = $state<FetchError | null>()
+
+    let wsUrl = ""
 
     onMount(async () => {
         // Join the room
-        let resp = await fetch("/api/join?room=" + data.roomId)
 
-        if (resp.status != 200) {
+        let sugg, queue, index
-            error = { code: 400, message: "Failed to join the room. Maybe wrong code or location?" }
+        ;[returnError, wsUrl] = await joinRoom(data.roomId)
+        if (returnError) {
             return
         }
 
+        ;[returnError, sugg] = await getSuggestions(data.roomId)
+        if (returnError) return
+
         // Setup websocket connection
         let socket = io("/", { path: "/ws" })
         await socket.emitWithAck("join_room", { id: data.roomId })
-
+        ;[returnError, queue, index] = await getQueueSongs(data.roomId)
-        // Get room suggestions
+        if (returnError) {
-        resp = await fetch("/api/room/suggestions?room=" + data.roomId)
-
-        if (resp.status != 200) {
-            error = { code: 500, message: "Failed to retrive suggestions" }
             return
         }
 
-        let json = await resp.json()
+        queueSongs = queue
-
+        suggestions = sugg
-        json["songs"].forEach(async (i: any) => {
+        playingIndex = index
-            suggestions.push(await parseSuggestion(i))
-        })
-
-        suggestions = suggestions.sort((a, b) => {
-            return a.upvote - b.upvote
-        })
-
-        // Get the room queue
-
-        resp = await fetch("/api/queue?room=" + data.roomId)
-        if (resp.status != 200) {
-            error = { code: 404, message: "Room not found" }
-            return
-        }
-        json = await resp.json()
-
-        json["queue"].forEach(async (i: any) => {
-            songs.push(await parseSong(i))
-        })
-        console.log(songs)
     })
 </script>
 
 <!-- Check if the room exists -->
-{#if error.code != 0}
+{#if returnError}
-    <Error code={error.code} message={error.message} />
+    <Error {returnError} />
 {:else}
     <div class="flex w-full flex-col items-center justify-center p-4 lg:p-10">
-        <QueueSlider {songs} {playing} />
+        <QueueSlider {queueSongs} {playingIndex} />
         <div class="w-full py-6 lg:w-[30vw]">
             <SuggestionInput roomId={data.roomId} />
         </div>

frontend/tailwind.config.ts

@@ -0,0 +1,22 @@
+import type { Config } from "tailwindcss"
+const { iconsPlugin, getIconCollections } = require("@egoist/tailwindcss-icons")
+
+export default {
+    content: ["./src/**/*.{html,js,svelte,ts}"],
+
+    theme: {
+        extend: {},
+    },
+
+    plugins: [
+        iconsPlugin({
+            // Select the icon collections you want to use
+            // You can also ignore this option to automatically discover all individual icon packages you have installed
+            // If you install @iconify/json, you should explicitly specify the collections you want to use, like this:
+            collections: getIconCollections(["lucide"]),
+            // If you want to use all icons from @iconify/json, you can do this:
+            // collections: getIconCollections("all"),
+            // and the more recommended way is to use `dynamicIconsPlugin`, see below.
+        }),
+    ],
+} satisfies Config