is.value; save(); });
$('#ss-copy-suno').addEventListener('click', function () {
var t = $('#ss-suno'); t.select();
(navigator.clipboard ? navigator.clipboard.writeText(t.value) : Promise.reject()).then(function () { toast('Copied.'); }, function () { try { document.execCommand('copy'); toast('Copied.'); } catch (e) { toast('Select the text and copy it.'); } });
});
$('#ss-write-btn').addEventListener('click', function () {
var btn = this, topic = $('#ss-topic').value.trim();
if (!topic && !S.remix) { toast('Tell the AI what the song is about first.'); $('#ss-topic').focus(); return; }
S.mood = $('#ss-mood').value.trim(); S.genre = $('#ss-genre').value.trim();
busy(btn, true); btn.textContent = 'Writing… (up to ~30s)';
api('POST', '/api/ss/write', { topic: topic, mood: S.mood, genre: S.genre, remix_id: S.remix ? S.remix.id : undefined })
.then(function (j) {
var s = j.song;
S.title = s.title; S.lyrics = s.lyrics; S.suno = s.suno_prompt; S.bpm = s.bpm; S.key = parseKey(s.key).name; S.chords = s.chords || [];
S.ai = s.patterns; S.patterns = JSON.parse(JSON.stringify(s.patterns)); S.vox = null;
save(); fillWrite(); syncStudio(); toast('Song written. Beat loaded in Studio.');
$('#ss-write-out').scrollIntoView({ behavior: 'smooth', block: 'start' });
})
.catch(function (e) { toast(e.message, 5000); })
.then(function () { busy(btn, false); btn.textContent = 'Write with AI'; });
});
$('#ss-to-studio').addEventListener('click', function () { showTab('studio'); });
$('#ss-to-voice').addEventListener('click', function () { showTab('voice'); });
// Remix picker
var remixList = null;
function drawRemix() {
var q = $('#ss-remix-q').value.trim().toLowerCase();
var items = (remixList || []).filter(function (s) { return !q || s.title.toLowerCase().indexOf(q) >= 0; }).slice(0, 200);
$('#ss-remix-list').innerHTML = items.length ? items.map(function (s) { return ''; }).join('') : 'No songs found.';
}
$('#ss-remix-btn').addEventListener('click', function () {
var dlg = $('#ss-remix-dlg');
if (dlg.showModal) dlg.showModal(); else dlg.setAttribute('open', '');
if (remixList) { drawRemix(); return; }
$('#ss-remix-list').innerHTML = 'Loading…';
api('GET', '/api/ss/remix').then(function (j) { remixList = j.songs || []; drawRemix(); }).catch(function (e) { $('#ss-remix-list').innerHTML = '' + esc(e.message) + ''; });
});
$('#ss-remix-q').addEventListener('input', drawRemix);
$('#ss-remix-list').addEventListener('click', function (e) {
var b = e.target.closest('button[data-id]'); if (!b) return;
var s = (remixList || []).filter(function (x) { return x.id === b.getAttribute('data-id'); })[0]; if (!s) return;
S.remix = { id: s.id, title: s.title };
$('#ss-remix-title').textContent = s.title; $('#ss-remix-box').hidden = false;
var dlg = $('#ss-remix-dlg'); if (dlg.close) dlg.close(); else dlg.removeAttribute('open');
if (!$('#ss-topic').value.trim()) $('#ss-topic').value = 'A fresh remix of "' + s.title + '"';
toast('Now press Write with AI to remix it.');
});
$('#ss-remix-clear').addEventListener('click', function () { S.remix = null; $('#ss-remix-box').hidden = true; });
// ---------------------------------------------------------------- AUDIO ENGINE
var E = null; // built lazily after Tone loads
var SOUNDS = { drums: ['808', 'Lo-fi', 'Chip'], bass: ['Sub', 'Saw', 'FM'], chords: ['Pad', 'Keys', 'Pluck'], lead: ['Saw', 'Square', 'Bell'] };
function makeDrums(kit, out) {
var d = {}, nodes = [];
function keep(n) { nodes.push(n); return n; }
if (kit === 'Lo-fi') {
var lp = keep(new Tone.Filter(3200, 'lowpass').connect(out));
d.kick = keep(new Tone.MembraneSynth({ pitchDecay: 0.03, octaves: 6, envelope: { attack: 0.001, decay: 0.35, sustain: 0, release: 0.1 } }).connect(lp));
d.snare = keep(new Tone.NoiseSynth({ noise: { type: 'pink' }, envelope: { attack: 0.001, decay: 0.18, sustain: 0 } }).connect(lp));
var hp = keep(new Tone.Filter(6000, 'highpass').connect(lp));
d.hat = keep(new Tone.NoiseSynth({ noise: { type: 'white' }, envelope: { attack: 0.001, decay: 0.04, sustain: 0 }, volume: -10 }).connect(hp));
d.kickNote = 'C1';
} else if (kit === 'Chip') {
d.kick = keep(new Tone.MembraneSynth({ oscillator: { type: 'square' }, pitchDecay: 0.02, octaves: 4, envelope: { attack: 0.001, decay: 0.18, sustain: 0 }, volume: -8 }).connect(out));
d.snare = keep(new Tone.NoiseSynth({ noise: { type: 'brown' }, envelope: { attack: 0.001, decay: 0.09, sustain: 0 }, volume: 2 }).connect(out));
var hp2 = keep(new Tone.Filter(8000, 'highpass').connect(out));