1// Service Worker for persistent audio across pages  
2const CACHE_NAME = 'paranormal-fm-v1';  
3const AUDIO_STATE_KEY = 'paranormal_fm_audio_state';  
4
5// Install event  
6self.addEventListener('install', (event) => {  
7    console.log('Paranormal FM Service Worker installing...');  
8    self.skipWaiting();  
9});  
10
11// Activate event  
12self.addEventListener('activate', (event) => {  
13    console.log('Paranormal FM Service Worker activated');  
14    event.waitUntil(self.clients.claim());  
15});  
16
17// Audio state management  
18let audioState = {  
19    isPlaying: false,  
20    currentTime: 0,  
21    volume: 1,  
22    streamUrl: '',  
23    lastUpdate: Date.now()  
24};  
25
26// Message handling for audio state  
27self.addEventListener('message', (event) => {  
28    const { type, data } = event.data;  
29    
30    switch (type) {  
31        case 'AUDIO_STATE_UPDATE':  
32            audioState = { ...audioState, ...data, lastUpdate: Date.now() };  
33            console.log('Service Worker: Audio state updated', audioState);  
34            
35            // Broadcast to all clients  
36            self.clients.matchAll().then(clients => {  
37                clients.forEach(client => {  
38                    client.postMessage({  
39                        type: 'AUDIO_STATE_SYNC',  
40                        data: audioState  
41                    });  
42                });  
43            });  
44            break;  
45            
46        case 'GET_AUDIO_STATE':  
47            event.ports[0].postMessage({  
48                type: 'AUDIO_STATE_RESPONSE',  
49                data: audioState  
50            });  
51            break;  
52            
53        case 'AUDIO_PLAY':  
54            audioState.isPlaying = true;  
55            audioState.lastUpdate = Date.now();  
56            broadcastToClients('AUDIO_PLAY_COMMAND', audioState);  
57            break;  
58            
59        case 'AUDIO_PAUSE':  
60            audioState.isPlaying = false;  
61            audioState.lastUpdate = Date.now();  
62            broadcastToClients('AUDIO_PAUSE_COMMAND', audioState);  
63            break;  
64    }  
65});  
66
67function broadcastToClients(type, data) {  
68    self.clients.matchAll().then(clients => {  
69        clients.forEach(client => {  
70            client.postMessage({ type, data });  
71        });  
72    });  
73}  
74
75// Keep service worker alive  
76self.addEventListener('fetch', (event) => {  
77    // Just return the request as-is, but keeps SW active  
78    event.respondWith(fetch(event.request));  
79});