// js/state.js
import { initializePatternState } from "./pattern/pattern_state.js";
import { audioState, initializeAudioState, getAudioSnapshot, applyAudioSnapshot } from "./audio/audio_state.js";
import { DEFAULT_VOLUME, DEFAULT_PAN } from "./config.js";
import { generateMmpFile } from "./file.js"; // Vamos usar uma adaptação disto ou criar um helper
import { parseMmpContent } from "./file.js"; // Importante para restaurar o XML

// Estado global da aplicação
const globalState = {
  sliceToolActive: false,
  isPlaying: false,
  isAudioEditorPlaying: false,
  playbackIntervalId: null,
  currentStep: 0,
  metronomeEnabled: false,
  originalXmlDoc: null,
  currentBeatBasslineName: "Novo Projeto",
  masterVolume: DEFAULT_VOLUME,
  masterPan: DEFAULT_PAN,
  zoomLevelIndex: 2,
  isLoopActive: false,
  loopStartTime: 0,
  loopEndTime: 8,
  resizeMode: "trim",
  selectedClipId: null,
  isRecording: false,
  clipboard: null,
  lastRulerClickTime: 0,
  justReset: false,
  // Configs Globais que devem persistir
  bpm: 140,
  compassoA: 4,
  compassoB: 4,
  bars: 1,
  syncMode: "global" // Adicionado para persistir a escolha
};

const patternState = {
  tracks: [],
  activeTrackId: null,
  activePatternIndex: 0,
};

// Combina todos os estados em um único objeto namespaced
export let appState = {
  global: globalState,
  pattern: patternState, 
  audio: audioState,
};
window.appState = appState;

export function resetProjectState() {
  console.log("Executando resetProjectState completo...");

  // 1. Reseta o estado global
  Object.assign(appState.global, {
    sliceToolActive: false,
    isPlaying: false,
    isAudioEditorPlaying: false,
    playbackIntervalId: null,
    currentStep: 0,
    metronomeEnabled: false,
    originalXmlDoc: null,
    currentBeatBasslineName: "Novo Projeto",
    masterVolume: DEFAULT_VOLUME,
    masterPan: DEFAULT_PAN,
    zoomLevelIndex: 2,
    isLoopActive: false,
    loopStartTime: 0,
    loopEndTime: 8,
    resizeMode: "trim",
    selectedClipId: null,
    isRecording: false,
    clipboard: null,
    lastRulerClickTime: 0,
    justReset: false,
  });

  // 2. Reseta o estado do pattern
  Object.assign(appState.pattern, {
    tracks: [],
    activeTrackId: null,
    activePatternIndex: 0,
  });

  // 3. 🔥 CRÍTICO: Reseta o estado de áudio na força bruta
  // Isso garante que os arrays fiquem vazios ANTES de qualquer salvamento de sessão
  if (appState.audio) {
    appState.audio.tracks = [];
    appState.audio.clips = [];
    appState.audio.audioEditorSeekTime = 0;
  }
  
  // Chama a função original para garantir reinicialização de contextos se houver
  initializeAudioState(); 
}

export function saveStateToSession() {
  if (!window.ROOM_NAME) return;

  // 1. Limpa Tracks do Pattern
  const cleanTracks = appState.pattern.tracks.map((track) => {
    return {
      id: track.id,
      name: track.name,
      samplePath: track.samplePath,
      patterns: track.patterns, 
      activePatternIndex: track.activePatternIndex,
      volume: track.volume,
      pan: track.pan,
      instrumentName: track.instrumentName,
      instrumentXml: track.instrumentXml,
    };
  });

  // 2. Constrói o objeto. 🔥 AQUI ADICIONAMOS O ÁUDIO
  const stateToSave = {
    pattern: {
      ...appState.pattern, 
      tracks: cleanTracks, 
    },
    // Salva o estado de Áudio para o F5 funcionar
    audio: {
      tracks: appState.audio.tracks || [],
      clips: appState.audio.clips || [],
    },
    global: {
      bpm: document.getElementById("bpm-input").value,
      compassoA: document.getElementById("compasso-a-input").value,
      compassoB: document.getElementById("compasso-b-input").value,
      bars: document.getElementById("bars-input").value,
      syncMode: appState.global.syncMode,
    },
  };

  try {
    const roomName = window.ROOM_NAME || "default_room";
    sessionStorage.setItem(
      `temp_state_${roomName}`,
      JSON.stringify(stateToSave)
    );
  } catch (e) {
    console.error("Falha ao salvar estado na sessão:", e);
  }
}