Add files via upload

services/mywave.ts

@@ -0,0 +1,77 @@
+import { Track } from './api';
+import { useLikes } from '../store';
+
+const DEEPSEEK_API_KEY = 'REDACTED_DEEPSEEK_API_KEY';
+const DEEPSEEK_URL = 'https://api.deepseek.com/chat/completions';
+
+export async function getMyWaveTracks(allTracks: Track[]): Promise<Track[]> {
+  const likedIds = [...useLikes.getState().likes];
+
+  if (likedIds.length === 0) {
+    // No liked tracks - return random shuffle
+    return [...allTracks].sort(() => Math.random() - 0.5).slice(0, 30);
+  }
+
+  const likedTracks = allTracks.filter((t) => likedIds.includes(t.id));
+  const likedNames = likedTracks
+    .slice(0, 20)
+    .map((t) => `${t.artist} - ${t.title}`)
+    .join('\n');
+
+  const otherTracks = allTracks.filter((t) => !likedIds.includes(t.id));
+  const otherNames = otherTracks
+    .slice(0, 80)
+    .map((t, i) => `${i}. ${t.artist} - ${t.title}`)
+    .join('\n');
+
+  try {
+    const res = await fetch(DEEPSEEK_URL, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${DEEPSEEK_API_KEY}`,
+      },
+      body: JSON.stringify({
+        model: 'deepseek-chat',
+        messages: [
+          {
+            role: 'system',
+            content: 'You are a music recommendation engine. Given liked songs, pick the most similar tracks from a list. Return ONLY a JSON array of track indices (numbers), maximum 25. No explanation.',
+          },
+          {
+            role: 'user',
+            content: `Liked songs:\n${likedNames}\n\nAvailable tracks (pick by index):\n${otherNames}`,
+          },
+        ],
+        max_tokens: 200,
+        temperature: 0.7,
+      }),
+    });
+
+    if (!res.ok) throw new Error('DeepSeek API error');
+    const data = await res.json();
+    const content = data.choices?.[0]?.message?.content || '[]';
+    const match = content.match(/\[[\d,\s]+\]/);
+    if (match) {
+      const indices: number[] = JSON.parse(match[0]);
+      const recommended = indices
+        .filter((i) => i >= 0 && i < otherTracks.length)
+        .map((i) => otherTracks[i])
+        .filter(Boolean);
+      // Mix recommended with some liked
+      const mixed = [
+        ...likedTracks.sort(() => Math.random() - 0.5).slice(0, 5),
+        ...recommended,
+      ].sort(() => Math.random() - 0.5);
+      return mixed.slice(0, 30);
+    }
+  } catch (e) {
+    console.warn('MyWave DeepSeek error:', e);
+  }
+
+  // Fallback: random mix with liked boosted
+  return [
+    ...likedTracks.sort(() => Math.random() - 0.5),
+    ...otherTracks.sort(() => Math.random() - 0.5).slice(0, 20),
+  ].slice(0, 30);
+}