feat: add bot restart functionality via API and Discord command

frontend/src/api/client.ts

@@ -40,6 +40,7 @@ function post<T>(path: string, body?: unknown): Promise<T> {
 
 export const api = {
   status: () => request<BotStatus>('/api/status'),
+  restart: () => post<{ status: string }>('/api/restart'),
 
   connect: (channelId: string) => post('/api/connect', { channel_id: channelId }),
   disconnect: () => post('/api/disconnect'),

frontend/src/components/AppHeader.vue

@@ -1,6 +1,9 @@
 <script setup lang="ts">
-import { computed } from 'vue'
+import { computed, ref, watch } from 'vue'
+import { RotateCw } from 'lucide-vue-next'
 import type { BotStatus, GuildSettings } from '@/types/status'
+import { api } from '@/api/client'
+import { useToasts } from '@/composables/useToasts'
 
 const props = defineProps<{
   status: BotStatus | null
@@ -9,6 +12,11 @@ const props = defineProps<{
 }>()
 defineEmits<{ selectGuild: [guildId: string] }>()
 
+const { notify } = useToasts()
+const isRestarting = ref(false)
+const restartInitiatedAt = ref<number | null>(null)
+let restartTimer: number | null = null
+
 const activeChannel = computed(() => props.status?.active_voice_channel ?? null)
 
 const label = computed(() =>
@@ -16,6 +24,43 @@ const label = computed(() =>
     ? `Połączony: ${activeChannel.value.channel_name}`
     : 'Rozłączony',
 )
+
+async function handleRestart() {
+  if (isRestarting.value) return
+  if (!window.confirm('Czy na pewno chcesz zrestartować bota?')) return
+
+  isRestarting.value = true
+  restartInitiatedAt.value = Date.now()
+  notify('Wysyłanie polecenia restartu...', 'info')
+
+  try {
+    await api.restart()
+    notify('Wysłano polecenie. Restartowanie bota...', 'info')
+  } catch {
+    notify('Wysłano polecenie restartu.', 'info')
+  }
+
+  if (restartTimer !== null) clearTimeout(restartTimer)
+  restartTimer = window.setTimeout(() => {
+    isRestarting.value = false
+    restartInitiatedAt.value = null
+  }, 15000)
+}
+
+watch(
+  () => props.status,
+  () => {
+    if (isRestarting.value && restartInitiatedAt.value && Date.now() - restartInitiatedAt.value > 3000) {
+      isRestarting.value = false
+      restartInitiatedAt.value = null
+      if (restartTimer !== null) {
+        clearTimeout(restartTimer)
+        restartTimer = null
+      }
+      notify('Bot został uruchomiony ponownie!', 'success')
+    }
+  },
+)
 </script>
 
 <template>
@@ -56,6 +101,19 @@ const label = computed(() =>
         />
         <span>{{ label }}</span>
       </div>
+      <button
+        type="button"
+        class="btn-secondary btn-restart"
+        :disabled="isRestarting"
+        :title="isRestarting ? 'Restartowanie bota...' : 'Zrestartuj bota'"
+        @click="handleRestart"
+      >
+        <RotateCw
+          :size="16"
+          :class="{ 'spin-icon': isRestarting }"
+        />
+        <span>{{ isRestarting ? 'Restart...' : 'Restart' }}</span>
+      </button>
     </div>
   </header>
 </template>
@@ -67,10 +125,32 @@ const label = computed(() =>
   gap: 16px;
 }
 
-.btn-secondary {
-  display: flex;
+.btn-restart {
+  display: inline-flex;
   align-items: center;
   gap: 8px;
+  padding: 8px 16px;
+  border-radius: 30px;
+  font-size: 0.85rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: var(--transition-smooth);
+}
+
+.btn-restart:hover:not(:disabled) {
+  border-color: rgba(239, 68, 68, 0.4);
+  color: #fca5a5;
+  background: rgba(239, 68, 68, 0.12);
+  box-shadow: 0 0 12px rgba(239, 68, 68, 0.2);
+}
+
+.btn-restart:disabled {
+  opacity: 0.65;
+  cursor: not-allowed;
+}
+
+.spin-icon {
+  animation: spin 1s linear infinite;
 }
 
 @media (max-width: 768px) {
@@ -85,5 +165,10 @@ const label = computed(() =>
     flex-direction: column;
     align-items: flex-start;
   }
+
+  .btn-restart {
+    width: 100%;
+    justify-content: center;
+  }
 }
 </style>

tests/test_api_surface.py

@@ -11,6 +11,7 @@ from zyrarbot.settings import Settings
 EXPECTED_ENDPOINTS = {
     ("get", "/api/status"),
     ("get", "/api/health"),
+    ("post", "/api/restart"),
     ("post", "/api/play"),
     ("post", "/api/play_file"),
     ("post", "/api/pause"),
@@ -71,6 +72,19 @@ class ApiSurfaceTest(unittest.TestCase):
         self.assertTrue(self.spec["openapi"].startswith("3."))
         self.assertIn("ŻyrarBOT", self.spec["info"]["title"])
 
+    def test_restart_endpoint_calls_restart_state(self):
+        import asyncio
+        from unittest.mock import MagicMock
+        from zyrarbot.ui.api.routers.status_router import restart_bot
+
+        mock_request = MagicMock()
+        mock_restart = MagicMock()
+        mock_request.app.state.restart = mock_restart
+
+        result = asyncio.run(restart_bot(mock_request))
+        self.assertEqual(result, {"status": "restarting"})
+        mock_restart.assert_called_once()
+
 
 if __name__ == "__main__":
     unittest.main()

zyrarbot/application.py

@@ -46,7 +46,15 @@ class Application:
         self.queues = QueueRepository(os.path.join(self.settings.config_dir, "queues"))
         self.tracks = TrackFactory(self.uploads, MediaProbe())
 
-        self.bot = MusicBot(self.settings, self.tracks, self.uploads, self.config, self.history)
+        self._server: uvicorn.Server | None = None
+        self.bot = MusicBot(
+            self.settings,
+            self.tracks,
+            self.uploads,
+            self.config,
+            self.history,
+            restart_callback=self.schedule_restart,
+        )
         self.guilds = GuildResolver(self.bot)
         self.player = MusicPlayer(
             bot=self.bot,
@@ -60,6 +68,7 @@ class Application:
         self.bot.player = self.player
 
         self.web = FastAPI(title="ŻyrarBOT")
+        self.web.state.restart = self.schedule_restart
         broadcaster = mount_api(
             self.web,
             settings=self.settings,
@@ -99,6 +108,28 @@ class Application:
             "/", StaticFiles(directory=self.settings.static_dir, html=True), name="static"
         )
 
+    def schedule_restart(self, delay: float = 0.5) -> None:
+        """Zaplanuj restart bota (zakończenie procesu Pythona)."""
+        asyncio.create_task(self._restart_worker(delay))
+
+    async def _restart_worker(self, delay: float) -> None:
+        logger.info("Zaplanowano restart aplikacji za %.1f s...", delay)
+        await asyncio.sleep(delay)
+        logger.info("Kończenie pracy aplikacji w celu restartu...")
+        try:
+            if not self.bot.is_closed():
+                await self.bot.close()
+        except Exception as error:  # noqa: BLE001
+            logger.error("Błąd podczas zamykania bota: %s", error)
+
+        if self._server is not None:
+            self._server.should_exit = True
+
+        # Bezpiecznik: jeśli proces nie zakończy się w ciągu 2.0 s, wymuś wyjście
+        await asyncio.sleep(2.0)
+        logger.warning("Wymuszanie zakończenia procesu (os._exit)")
+        os._exit(0)
+
     async def run(self) -> None:
         """Startuje serwer web, a następnie bota; panel działa też bez Discorda."""
         config = uvicorn.Config(
@@ -108,6 +139,7 @@ class Application:
             log_level="info",
         )
         server = uvicorn.Server(config)
+        self._server = server
 
         async with self.bot:
             server_task = asyncio.create_task(server.serve())

zyrarbot/ui/api/routers/status_router.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 from typing import Any
 
 import discord
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, Request
 
 from zyrarbot.music.music_player import MusicPlayer
 from zyrarbot.ui.api.dependencies import get_active_guild, get_player, get_status_service
@@ -23,3 +23,11 @@ async def get_status(
 @router.get("/health")
 async def get_health(player: MusicPlayer = Depends(get_player)) -> dict[str, Any]:
     return {"status": "ok", "ready": player.is_ready}
+
+
+@router.post("/restart")
+async def restart_bot(request: Request) -> dict[str, Any]:
+    restart_action = getattr(request.app.state, "restart", None)
+    if restart_action:
+        restart_action()
+    return {"status": "restarting"}

zyrarbot/ui/bot/client.py

@@ -5,6 +5,8 @@ import logging
 import discord
 from discord.ext import commands
 
+from collections.abc import Callable
+
 from zyrarbot.audio.track_factory import TrackFactory
 from zyrarbot.music.music_player import MusicPlayer
 from zyrarbot.settings import Settings
@@ -35,6 +37,7 @@ class MusicBot(commands.Bot):
         uploads: UploadsRepository,
         config: GuildConfigRepository,
         history: HistoryRepository,
+        restart_callback: Callable[[], None] | None = None,
     ):
         intents = discord.Intents.default()
         intents.message_content = True
@@ -47,6 +50,22 @@ class MusicBot(commands.Bot):
         self.config = config
         self.history = history
         self.player: MusicPlayer | None = None
+        self._restart_callback = restart_callback
+
+    def schedule_restart(self) -> None:
+        """Żąda restartu bota za pomocą zarejestrowanego wywołania zwrotnego."""
+        if self._restart_callback is not None:
+            self._restart_callback()
+        else:
+            import asyncio
+            import os
+
+            async def _default_restart() -> None:
+                await asyncio.sleep(0.5)
+                await self.close()
+                os._exit(0)
+
+            asyncio.create_task(_default_restart())
 
     def _create_music_cogs(self) -> tuple[commands.Cog, ...]:
         if self.player is None:

zyrarbot/ui/bot/cogs/control_cog.py

@@ -122,3 +122,11 @@ class ControlCog(MusicCogBase, name="Control"):
             return
         title = discord.utils.escape_markdown(current.title or "")
         await interaction.response.send_message(embed=message_embed("Teraz odtwarzane", title))
+
+    @app_commands.command(name="restart", description="Zrestartuj bota (restart kontenera)")
+    async def restart(self, interaction: discord.Interaction) -> None:
+        await interaction.response.send_message(
+            embed=message_embed("Restartowanie", "Bot jest restartowany...")
+        )
+        if hasattr(self.bot, "schedule_restart"):
+            self.bot.schedule_restart()