https://rock.scot/js/song-voting.js?v=7

1(function(){
2  const SUPA_URL = window.SUPABASE_URL || (window.RS_CONFIG && window.RS_CONFIG.SUPABASE_URL);
3  const SUPA_KEY = window.SUPABASE_ANON_KEY || (window.RS_CONFIG && window.RS_CONFIG.SUPABASE_ANON_KEY);
4  function voterHash(){
5    let h = localStorage.getItem('rs-voter-id');
6    if(!h){ h = crypto.randomUUID(); localStorage.setItem('rs-voter-id', h); }
7    return h;
8  }
9  async function castVote(trackKey, vote, btnEl){
10    var origLabel = null;
11    if (btnEl) {
12      origLabel = btnEl.textContent;
13      btnEl.disabled = true;
14      btnEl.textContent = 'Submitting...';
15    }
16    try{
17      const r = await fetch(`${SUPA_URL}/rest/v1/rpc/cast_vote`, {
18        method:'POST',
19        headers:{apikey:SUPA_KEY, Authorization:`Bearer ${SUPA_KEY}`, 'Content-Type':'application/json'},
20        body: JSON.stringify({ p_track_key: trackKey, p_vote: vote, p_voter_hash: voterHash() })
21      });
22      if (btnEl) {
23        btnEl.textContent = r.ok ? 'Voted!' : 'Try again';
24        if (r.ok) btnEl.classList.add('rsv-voted');
25        setTimeout(function(){
26          btnEl.textContent = origLabel;
27          btnEl.disabled = false;
28          btnEl.classList.remove('rsv-voted');
29        }, 1500);
30      }
31      return r.ok;
32    } catch(e){
33      console.error('castVote', e);
34      if (btnEl) {
35        btnEl.textContent = 'Try again';
36        setTimeout(function(){ btnEl.textContent = origLabel; btnEl.disabled = false; }, 1500);
37      }
38      return false;
39    }
40  }
41  let _snapshot = null;
42  async function loadSnapshot(){
43    try {
44      const r = await fetch('/data/song-votes.json', {cache:'no-store'});
45      _snapshot = await r.json();
46    } catch(e){ _snapshot = { top: [] }; }
47  }
48  function showScore(trackKey){
49    const el = document.getElementById('rsp-vote-score');
50    if (!el) return;
51    if (!_snapshot) { loadSnapshot().then(function(){ renderScore(trackKey); }); return; }
52    renderScore(trackKey);
53  }

54  function renderScore(trackKey){
55    const el = document.getElementById('rsp-vote-score');
56    if (!el || !_snapshot) return;
57    const row = (_snapshot.top||[]).find(t => t.track_key === trackKey);
58    el.textContent = row ? (row.score>0?'+':'') + row.score : '';
59  }
60  window.RSVote = { castVote, showScore };
61})();