renderizando projetos no mmpCreator

assets/js/creations/main.js

@@ -1,5 +1,5 @@
 // js/main.js
-import { appState, loadStateFromSession } from "./state.js"; // <--- Importe loadStateFromSession
+import { appState, loadStateFromSession } from "./state.js"; 
 import {
   updateTransportLoop,
   restartAudioEditorIfPlaying,
@@ -17,7 +17,7 @@ import { adjustValue, enforceNumericInput, DEFAULT_PROJECT_XML, secondsToSongTic
 import { ZOOM_LEVELS } from "./config.js";
 import { loadProjectFromServer } from "./file.js";
 import { sendAction, joinRoom, setUserName } from "./socket.js";
-import { renderActivePatternToBlob } from "./pattern/pattern_audio.js";
+import { renderActivePatternToBlob, renderProjectAndDownload } from "./pattern/pattern_audio.js";
 import { showToast } from "./ui.js";
 import { toggleRecording } from "./recording.js"
 import * as Tone from "https://esm.sh/tone"; // Adicione o Tone aqui se não estiver global
@@ -127,6 +127,10 @@ document.addEventListener("DOMContentLoaded", () => {
   const deleteClipBtn = document.getElementById("delete-clip");
   const addPatternBtn = document.getElementById("add-pattern-btn");
   const removePatternBtn = document.getElementById("remove-pattern-btn"); 
+  const downloadPackageBtn = document.getElementById("download-package-btn");
+
+  // Download projeto
+  downloadPackageBtn?.addEventListener("click", generateMmpFile);
 
   // Configuração do botão de Gravação
   const recordBtn = document.getElementById('record-btn');
@@ -365,18 +369,13 @@ document.addEventListener("DOMContentLoaded", () => {
     if (file) handleFileLoad(file).then(() => closeOpenProjectModal());
   });
   uploadSampleBtn?.addEventListener("click", () => sampleFileInput?.click());
-  saveMmpBtn?.addEventListener("click", generateMmpFile);
+  saveMmpBtn?.addEventListener("click", renderProjectAndDownload);
 
   addInstrumentBtn?.addEventListener("click", () => {
     initializeAudioContext();
     sendAction({ type: "ADD_TRACK" });
   });
-  removeInstrumentBtn?.addEventListener("click", () => {
-    initializeAudioContext();
-    sendAction({ type: "REMOVE_LAST_TRACK" });
-  });
   
-  // 👇 ATUALIZE ESTE LISTENER
   removeInstrumentBtn?.addEventListener("click", () => {
     initializeAudioContext();
     

assets/js/creations/pattern/pattern_audio.js

@@ -913,3 +913,379 @@ export function stopSongPatternPlaybackOnTransport() {
   } catch {}
   songPatternScheduleId = null;
 }
+
+// =========================================================================
+// Renderizar o PROJETO inteiro (Playlist patterns + Audio Timeline) para WAV
+// =========================================================================
+
+function _n(v, def = 0) {
+  const x = Number(v);
+  return Number.isFinite(x) ? x : def;
+}
+
+function _secondsPerStep(bpm) {
+  return 60 / (bpm * 4); // 1/16
+}
+
+function _ticksToSeconds(ticks, stepSec) {
+  // LMMS: 12 ticks por 1/16
+  return (_n(ticks, 0) / 12) * stepSec;
+}
+
+function _dbFromVol(vol, muted) {
+  const v = clamp(vol ?? 1, 0, MAX_VOL);
+  if (muted || v <= 0) return -Infinity;
+  return Tone.gainToDb(v);
+}
+
+function _sanitizeFileName(name) {
+  return String(name || "projeto")
+    .trim()
+    .replace(/[<>:"/\\|?*\x00-\x1F]+/g, "_")
+    .replace(/\s+/g, "_")
+    .slice(0, 80);
+}
+
+function _patternLengthTicks(patt) {
+  const T = 12;
+
+  let byNotes = 0;
+  if (Array.isArray(patt?.notes) && patt.notes.length) {
+    for (const n of patt.notes) {
+      const pos = _n(n.pos, 0);
+      const rawLen = _n(n.len, T);
+      const len = rawLen < 0 ? T : Math.max(rawLen, T);
+      byNotes = Math.max(byNotes, pos + len);
+    }
+  }
+
+  const bySteps = (patt?.steps?.length || 0) * T;
+
+  return Math.max(byNotes, bySteps, T);
+}
+
+function _collectArrangements() {
+  const basslines = (appState.pattern?.tracks || []).filter(t => t.type === "bassline");
+  const arr = [];
+
+  for (const b of basslines) {
+    const clips = (b.playlist_clips || []).filter(c => _n(c.len, 0) > 0);
+    if (clips.length) arr.push(b);
+  }
+
+  // Fallback: se não houver playlist_clips, renderiza o pattern ativo por N compassos
+  if (arr.length === 0) {
+    const bars = parseInt(document.getElementById("bars-input")?.value, 10) || 1;
+    const activePi = _n(appState.pattern?.activePatternIndex, 0);
+    arr.push({
+      patternIndex: activePi,
+      volume: 1,
+      pan: 0,
+      muted: false,
+      isMuted: false,
+      playlist_clips: [{ pos: 0, len: bars * 192 }], // 192 ticks por compasso (4/4)
+    });
+  }
+
+  return arr;
+}
+
+function _projectDurationSeconds(bpm) {
+  const stepSec = _secondsPerStep(bpm);
+
+  // 1) fim vindo da playlist (ticks)
+  let maxTick = 0;
+  for (const b of _collectArrangements()) {
+    for (const c of (b.playlist_clips || [])) {
+      const end = _n(c.pos, 0) + _n(c.len, 0);
+      if (end > maxTick) maxTick = end;
+    }
+  }
+  const playlistEndSec = _ticksToSeconds(maxTick, stepSec);
+
+  // 2) fim vindo do editor de áudio (segundos)
+  let audioEndSec = 0;
+  for (const c of (appState.audio?.clips || [])) {
+    const end = _n(c.startTimeInSeconds, 0) + _n(c.durationInSeconds, 0);
+    if (end > audioEndSec) audioEndSec = end;
+  }
+
+  return Math.max(playlistEndSec, audioEndSec, stepSec);
+}
+
+async function _fetchAudioBuffer(url, audioCtx) {
+  try {
+    const res = await fetch(url);
+    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+    const arr = await res.arrayBuffer();
+    // slice(0) evita problemas em alguns browsers com ArrayBuffer "detached"
+    return await audioCtx.decodeAudioData(arr.slice(0));
+  } catch (e) {
+    console.warn("[Render] Falha ao carregar áudio:", url, e);
+    return null;
+  }
+}
+
+function _playOneShot(buffer, time, dest, stopTime = null, playbackRate = 1) {
+  const p = new Tone.Player(buffer);
+  p.playbackRate = playbackRate;
+  p.connect(dest);
+  p.start(time);
+
+  if (stopTime != null && stopTime > time) {
+    try { p.stop(stopTime); } catch {}
+  }
+
+  p.onstop = () => {
+    try { p.dispose(); } catch {}
+  };
+}
+
+export async function renderProjectToBlob({ tailSec = 0.25 } = {}) {
+  initializeAudioContext();
+
+  const bpm = parseInt(document.getElementById("bpm-input")?.value, 10) || 120;
+  const stepSec = _secondsPerStep(bpm);
+  const duration = _projectDurationSeconds(bpm) + Math.max(0, Number(tailSec) || 0);
+
+  const buffer = await Tone.Offline(async ({ transport }) => {
+    transport.bpm.value = bpm;
+
+    const rawCtx = Tone.getContext().rawContext;
+    const master = new Tone.Gain(1).toDestination();
+
+    // ------------------------------------------------------------
+    // CACHE de buffers (para não baixar/decodificar repetido)
+    // ------------------------------------------------------------
+    const bufferCache = new Map();
+    const getBuf = async (url) => {
+      const key = String(url || "");
+      if (!key) return null;
+      if (bufferCache.has(key)) return bufferCache.get(key);
+      const b = await _fetchAudioBuffer(key, rawCtx);
+      bufferCache.set(key, b);
+      return b;
+    };
+
+    // ------------------------------------------------------------
+    // (A) Render do AUDIO TIMELINE (appState.audio.clips)
+    // ------------------------------------------------------------
+    for (const clip of (appState.audio?.clips || [])) {
+      const muted = !!clip.muted || (_n(clip.volume, 1) <= 0);
+      if (muted) continue;
+
+      const url = clip.sourcePath || clip.src || clip.url;
+      if (!url) continue;
+
+      const buf = await getBuf(url);
+      if (!buf) continue;
+
+      const start = _n(clip.startTimeInSeconds, 0);
+      const dur = _n(clip.durationInSeconds, 0);
+      if (dur <= 0.0001) continue;
+
+      const offset = Math.max(0, _n(clip.offset, 0));
+      const vol = clamp(clip.volume ?? 1, 0, MAX_VOL);
+      const pan = clamp(clip.pan ?? 0, -1, 1);
+
+      const volNode = new Tone.Volume(vol <= 0 ? -Infinity : Tone.gainToDb(vol));
+      const panNode = new Tone.Panner(pan);
+
+      volNode.connect(panNode);
+      panNode.connect(master);
+
+      const player = new Tone.Player(buf);
+      player.connect(volNode);
+
+      player.start(start, offset, dur);
+      player.stop(start + dur + 0.01);
+
+      player.onstop = () => {
+        try { player.dispose(); } catch {}
+        try { volNode.dispose(); } catch {}
+        try { panNode.dispose(); } catch {}
+      };
+    }
+
+    // ------------------------------------------------------------
+    // (B) Render da PLAYLIST (patterns via bassline.playlist_clips)
+    // ------------------------------------------------------------
+    const arrangements = _collectArrangements();
+    const instrumentTracks = (appState.pattern?.tracks || []).filter(t => t.type !== "bassline");
+
+    // mix por (trackId + patternIndex) no OFFLINE:
+    // instVol -> instPan -> pattVol -> pattPan -> master
+    const mixCache = new Map();
+    const pluginCache = new Map();
+    const samplerBufCache = new Map();
+
+    const getMix = (track, bassline) => {
+      const pi = _n(bassline.patternIndex, 0);
+      const key = `${track.id}::${pi}`;
+      if (mixCache.has(key)) return mixCache.get(key);
+
+      const instMuted = !!(track.isMuted || track.muted) || clamp(track.volume ?? 1, 0, MAX_VOL) <= 0;
+      const pattMuted = !!(bassline.isMuted || bassline.muted) || clamp(bassline.volume ?? 1, 0, MAX_VOL) <= 0;
+
+      const instVol = new Tone.Volume(_dbFromVol(track.volume ?? 1, instMuted));
+      const instPan = new Tone.Panner(clamp(track.pan ?? 0, -1, 1));
+      const pattVol = new Tone.Volume(_dbFromVol(bassline.volume ?? 1, pattMuted));
+      const pattPan = new Tone.Panner(clamp(bassline.pan ?? 0, -1, 1));
+
+      instVol.connect(instPan);
+      instPan.connect(pattVol);
+      pattVol.connect(pattPan);
+      pattPan.connect(master);
+
+      const m = { instVol, instPan, pattVol, pattPan };
+      mixCache.set(key, m);
+      return m;
+    };
+
+    const getPluginInst = (track, bassline, mix) => {
+      const pi = _n(bassline.patternIndex, 0);
+      const key = `${track.id}::${pi}`;
+      if (pluginCache.has(key)) return pluginCache.get(key);
+
+      const plugKey = _getPluginKey(track);
+      const Cls = PLUGIN_CLASSES[plugKey];
+      if (!Cls) {
+        console.warn("[Render] Plugin não encontrado:", plugKey, "track:", track.name);
+        pluginCache.set(key, null);
+        return null;
+      }
+
+      const inst = new Cls(null, track.params || track.pluginData || {});
+      inst.connect(mix.instVol);
+
+      pluginCache.set(key, inst);
+      return inst;
+    };
+
+    const getSamplerBuf = async (track) => {
+      const key = String(track.id);
+      if (samplerBufCache.has(key)) return samplerBufCache.get(key);
+
+      const url = track.samplePath;
+      if (!url) {
+        samplerBufCache.set(key, null);
+        return null;
+      }
+
+      const b = await getBuf(url);
+      samplerBufCache.set(key, b);
+      return b;
+    };
+
+    for (const b of arrangements) {
+      const pi = _n(b.patternIndex, 0);
+
+      const pattMuted = !!(b.isMuted || b.muted) || clamp(b.volume ?? 1, 0, MAX_VOL) <= 0;
+      if (pattMuted) continue;
+
+      const clips = (b.playlist_clips || []).filter(c => _n(c.len, 0) > 0);
+      if (!clips.length) continue;
+
+      for (const clip of clips) {
+        const clipStartTick = _n(clip.pos, 0);
+        const clipEndTick = clipStartTick + _n(clip.len, 0);
+        const clipEndSec = _ticksToSeconds(clipEndTick, stepSec);
+
+        for (const track of instrumentTracks) {
+          const instMuted = !!(track.isMuted || track.muted) || clamp(track.volume ?? 1, 0, MAX_VOL) <= 0;
+          if (instMuted) continue;
+
+          const patt = track.patterns?.[pi];
+          if (!patt) continue;
+
+          const pattLenTicks = _patternLengthTicks(patt);
+          const mix = getMix(track, b);
+
+          // prepara recursos do track
+          let pluginInst = null;
+          let samplerBuf = null;
+          if (track.type === "plugin") pluginInst = getPluginInst(track, b, mix);
+          if (track.type === "sampler") samplerBuf = await getSamplerBuf(track);
+
+          // --- Piano roll (notes) ---
+          if (Array.isArray(patt.notes) && patt.notes.length > 0) {
+            for (const n of patt.notes) {
+              const notePos = _n(n.pos, 0);
+              const rawLen = _n(n.len, 12);
+              const lenTicks = rawLen < 0 ? 12 : Math.max(rawLen, 12);
+              const vel = _n(n.vol, 100) / 100;
+              const midi = _n(n.key, 60);
+
+              for (let startTick = clipStartTick + notePos; startTick < clipEndTick; startTick += pattLenTicks) {
+                const tSec = _ticksToSeconds(startTick, stepSec);
+
+                let durSec = _ticksToSeconds(lenTicks, stepSec);
+                durSec = Math.min(durSec, Math.max(0, clipEndSec - tSec));
+                if (durSec <= 0.0001) continue;
+
+                if (track.type === "plugin" && pluginInst) {
+                  const freq = Tone.Frequency(midi, "midi").toFrequency();
+                  try { pluginInst.triggerAttackRelease(freq, durSec, tSec, vel); } catch {}
+                } else if (track.type === "sampler" && samplerBuf) {
+                  const base = _n(track.baseNote, 60);
+                  const rate = Math.pow(2, (midi - base) / 12);
+                  _playOneShot(samplerBuf, tSec, mix.instVol, tSec + durSec, rate);
+                }
+              }
+            }
+          }
+
+          // --- Step sequencer (steps) ---
+          else if (Array.isArray(patt.steps) && patt.steps.length > 0) {
+            for (let s = 0; s < patt.steps.length; s++) {
+              if (!patt.steps[s]) continue;
+
+              const stepTick = s * 12;
+
+              for (let startTick = clipStartTick + stepTick; startTick < clipEndTick; startTick += pattLenTicks) {
+                const tSec = _ticksToSeconds(startTick, stepSec);
+
+                if (track.type === "plugin" && pluginInst) {
+                  try { pluginInst.triggerAttackRelease("C5", stepSec, tSec); } catch {}
+                } else if (track.type === "sampler" && samplerBuf) {
+                  // one-shot (sem transposição)
+                  _playOneShot(samplerBuf, tSec, mix.instVol, clipEndSec, 1);
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+
+    transport.start();
+  }, duration);
+
+  return bufferToWave(buffer);
+}
+
+export async function renderProjectAndDownload() {
+  try {
+    const blob = await renderProjectToBlob({ tailSec: 0.35 });
+
+    const projectName =
+      appState.global?.currentBeatBasslineName ||
+      appState.global?.projectName ||
+      "projeto";
+
+    const fileName = `${_sanitizeFileName(projectName)}.wav`;
+
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = fileName;
+    document.body.appendChild(a);
+    a.click();
+    a.remove();
+
+    setTimeout(() => URL.revokeObjectURL(url), 1500);
+  } catch (e) {
+    console.error("Erro ao renderizar projeto:", e);
+    alert("Erro ao renderizar projeto. Veja o console para detalhes.");
+  }
+}

creation.html

@@ -144,12 +144,11 @@
           ></i>
           <span style="margin-left: 8px">Salvar projeto</span>
           <i
-            class="fa-solid fa-file-zipper"
-            id="download-package-btn"
-            title="Baixar Pacote Completo (.zip)"
-            style="margin-left: 15px; color: #ffdd57; cursor: pointer"
+            class="fa-solid fa-file-audio"
+            id="save-mmp-btn"
+            title="Renderizar áudio (WAV/MP3/OGG/FLAC)"
           ></i>
-          <span style="margin-left: 8px; color: #ffdd57">Baixar ZIP</span>
+          <span style="margin-left: 8px">Renderizar</span>
           <i
             class="fa-solid fa-upload"
             id="upload-sample-btn"
@@ -885,32 +884,7 @@
       }
     </script>
 
-    <script>
-      document.addEventListener("DOMContentLoaded", () => {
-        const downloadBtn = document.getElementById("download-package-btn");
-
-        if (downloadBtn) {
-          downloadBtn.addEventListener("click", () => {
-            const params = new URLSearchParams(window.location.search);
-            let projectName = params.get("project");
-
-            if (projectName) {
-              if (!projectName.toLowerCase().endsWith(".mmp")) {
-                projectName += ".mmp";
-              }
-              const apiUrl = `/api/download/${projectName}`;
-              downloadBtn.style.opacity = "0.5";
-              setTimeout(() => (downloadBtn.style.opacity = "1"), 500);
-              window.location.href = apiUrl;
-            } else {
-              alert(
-                "Nenhum projeto selecionado na URL. Abra ou Salve um projeto primeiro."
-              );
-            }
-          });
-        }
-      });
-
+    <script>      
       document.addEventListener("DOMContentLoaded", () => {
         const uploadSampleBtn = document.getElementById("upload-sample-btn");
         const sampleInput = document.getElementById("sample-file-input");