"use strict";

// Sound IDs are intentionally stable. To replace a synthesized placeholder with a file,
// add a path to samplePaths using the same ID, for example:
//   sfx_genkotsu_impact: "assets/sounds/sfx_genkotsu_impact.mp3"
const audio = {
  enabled: true,
  ctx: null,
  samples: {},
  sampleLast: {},
  activeVoices: 0,
  maxConcurrent: 96,
  lastPlayedId: "",
  masterGainNode: null,
  _synthIdGain: 1,
  idGain: {},
  idMinGap: {},
  categoryEnabled: { voice: false, notify: true, ops: true },
  categoryGain: {},
  samplePaths: {},
  soundCategories: {},
  soundMap: {},
  _startupAudioDampenStarted: false,
  _startupAudioDampenUntil: 0,
  _currentPlayGainScale: 1,
  applySoundPack(pack = window.TARINAI_SOUND_PACK) {
    if (!pack || typeof pack !== "object") return false;
    if (pack.categoryGain && typeof pack.categoryGain === "object") this.categoryGain = { ...this.categoryGain, ...pack.categoryGain };
    if (pack.idGain && typeof pack.idGain === "object") this.idGain = { ...this.idGain, ...pack.idGain };
    if (pack.idMinGap && typeof pack.idMinGap === "object") this.idMinGap = { ...this.idMinGap, ...pack.idMinGap };
    if (pack.samplePaths && typeof pack.samplePaths === "object") this.samplePaths = { ...this.samplePaths, ...pack.samplePaths };
    if (pack.categories && typeof pack.categories === "object") this.soundCategories = { ...this.soundCategories, ...pack.categories };
    if (pack.soundMap && typeof pack.soundMap === "object") this.soundMap = { ...this.soundMap, ...pack.soundMap };
    this._samplesReady = false;
    this.samples = {};
    return true;
  },
  ensure() {
    const AudioClass = window.AudioContext || window.webkitAudioContext;
    if (!AudioClass) return null;
    if (!this.ctx) this.ctx = new AudioClass();
    if (!this.masterGainNode) {
      const ctx = this.ctx;
      this.masterGainNode = ctx.createGain();
      this.masterGainNode.gain.setValueAtTime(0.0001, ctx.currentTime);
      this.masterGainNode.gain.linearRampToValueAtTime(0.78, ctx.currentTime + 0.18);
      if (typeof ctx.createDynamicsCompressor === "function") {
        const compressor = ctx.createDynamicsCompressor();
        compressor.threshold.value = -18;
        compressor.knee.value = 24;
        compressor.ratio.value = 8;
        compressor.attack.value = 0.002;
        compressor.release.value = 0.18;
        this.masterGainNode.connect(compressor).connect(ctx.destination);
      } else {
        this.masterGainNode.connect(ctx.destination);
      }
    }
    if (this.ctx.state === "suspended") this.ctx.resume().catch?.(() => {});
    this.initSamples();
    return this.ctx;
  },
  outputNode() {
    this.ensure();
    return this.masterGainNode || this.ctx?.destination;
  },
  loadSettings() {
    try {
      const raw = localStorage.getItem("tarinai_audio_settings_v2");
      if (!raw) return;
      const parsed = JSON.parse(raw);
      if (typeof parsed.enabled === "boolean") this.enabled = parsed.enabled;
      if (parsed.categories && typeof parsed.categories === "object") {
        for (const key of Object.keys(this.categoryEnabled)) {
          if (typeof parsed.categories[key] === "boolean") this.categoryEnabled[key] = parsed.categories[key];
        }
      }
    } catch (_) {}
  },
  saveSettings() {
    try {
      localStorage.setItem("tarinai_audio_settings_v2", JSON.stringify({
        enabled: Boolean(this.enabled),
        categories: { ...this.categoryEnabled },
      }));
    } catch (_) {}
  },
  initSamples() {
    if (this._samplesReady) return;
    this._samplesReady = true;
    for (const [key, path] of Object.entries(this.samplePaths)) {
      if (!path) continue;
      const a = new Audio(path);
      a.preload = "auto";
      a.volume = this.sampleVolumeFor(key);
      this.samples[key] = a;
    }
  },
  categoryFor(id, fallback = "ops") {
    return this.soundMap[id] || fallback;
  },
  categoryOn(category = "ops") {
    return Boolean(this.categoryEnabled[category] ?? true);
  },
  sampleVolumeFor(key = "") {
    const category = this.categoryFor(key, key.startsWith("voice") ? "voice" : "ops");
    const base = category === "voice" ? 0.95 : 1.0;
    return Math.min(1, base * Math.max(1, (this.categoryGain?.[category] ?? 1) * 0.35) * (this.idGain?.[key] ?? 1));
  },
  beginVoice(dur = 0.1) {
    this.activeVoices = (this.activeVoices || 0) + 1;
    setTimeout(() => { this.activeVoices = Math.max(0, (this.activeVoices || 0) - 1); }, Math.max(60, dur * 1000 + 80));
  },
  setCategory(category, on) {
    if (!(category in this.categoryEnabled)) return;
    this.categoryEnabled[category] = Boolean(on);
    this.saveSettings();
  },
  setEnabled(on) {
    this.enabled = Boolean(on);
    if (this.enabled) this.ensure();
    this.saveSettings();
    return this.enabled;
  },
  toggle() {
    return this.setEnabled(!this.enabled);
  },
  canPlay(id, category = null, minGap = 0.04) {
    if (!this.enabled) return false;
    const cat = category || this.categoryFor(id);
    if (!this.categoryOn(cat)) return false;
    if ((this.activeVoices || 0) >= (this.maxConcurrent || 16) && cat !== "notify") return false;
    const gap = Math.max(Number(minGap) || 0, this.idMinGap?.[id] ?? 0);
    const t = performance.now() / 1000;
    if (t - (this.sampleLast[id] || 0) < gap) return false;
    this.sampleLast[id] = t;
    return true;
  },
  startupGainScale() {
    const now = performance.now() / 1000;
    if (!this._startupAudioDampenStarted) {
      this._startupAudioDampenStarted = true;
      this._startupAudioDampenUntil = now + 0.85;
      return 0.26;
    }
    if (now < (this._startupAudioDampenUntil || 0)) return 0.42;
    return 1;
  },
  playSample(key, minGap = 0.16, category = null) {
    const base = this.samples[key];
    if (!base) return false;
    const cat = category || this.categoryFor(key, key.startsWith("voice") ? "voice" : "ops");
    if (!this.canPlay(key, cat, minGap)) return false;
    this.lastPlayedId = key;
    window.TarinaiEvents.emit("audio:play", { id: key, category: cat, synthetic: false });
    this.ensure();
    const playScale = this.startupGainScale();
    const node = base.cloneNode(true);
    node.volume = Math.min(1, base.volume * (this.categoryGain?.[cat] ?? 1) * (this.idGain?.[key] ?? 1) * playScale);
    this.beginVoice(Math.max(0.08, Number(node.duration) || 0.16));
    node.play().catch(() => {});
    return true;
  },
  tone(freq, dur = 0.08, type = "sine", gain = 0.035, slide = 0, category = "ops") {
    if (!this.enabled || !this.categoryOn(category)) return;
    const ctx = this.ensure();
    if (!ctx) return;
    if ((this.activeVoices || 0) >= (this.maxConcurrent || 16) && category !== "notify") return;
    this.beginVoice(dur);
    gain = Math.min(0.95, Math.max(0.0002, gain * (this.categoryGain?.[category] ?? 1) * (this._synthIdGain || 1) * (this._currentPlayGainScale || 1)));
    const t0 = ctx.currentTime;
    const osc = ctx.createOscillator();
    const g = ctx.createGain();
    osc.type = type;
    osc.frequency.setValueAtTime(freq, t0);
    if (slide) osc.frequency.linearRampToValueAtTime(Math.max(36, freq + slide), t0 + dur);
    g.gain.setValueAtTime(0.0001, t0);
    g.gain.exponentialRampToValueAtTime(Math.max(0.0002, gain), t0 + Math.min(0.018, dur * 0.35));
    g.gain.exponentialRampToValueAtTime(0.0001, t0 + dur);
    osc.connect(g).connect(this.outputNode() || ctx.destination);
    osc.start(t0);
    osc.stop(t0 + dur + 0.03);
  },
  noise(dur = 0.08, gain = 0.030, category = "ops", filterFreq = 900) {
    if (!this.enabled || !this.categoryOn(category)) return;
    const ctx = this.ensure();
    if (!ctx) return;
    if ((this.activeVoices || 0) >= (this.maxConcurrent || 16) && category !== "notify") return;
    this.beginVoice(dur);
    gain = Math.min(0.90, Math.max(0.0002, gain * (this.categoryGain?.[category] ?? 1) * (this._synthIdGain || 1) * (this._currentPlayGainScale || 1)));
    const length = Math.max(1, Math.floor(ctx.sampleRate * dur));
    const buffer = ctx.createBuffer(1, length, ctx.sampleRate);
    const data = buffer.getChannelData(0);
    for (let i = 0; i < length; i++) data[i] = (Math.random() * 2 - 1) * Math.pow(1 - i / length, 1.5);
    const src = ctx.createBufferSource();
    const filter = ctx.createBiquadFilter();
    const g = ctx.createGain();
    filter.type = "lowpass";
    filter.frequency.value = filterFreq;
    g.gain.setValueAtTime(gain, ctx.currentTime);
    g.gain.exponentialRampToValueAtTime(0.0001, ctx.currentTime + dur);
    src.buffer = buffer;
    src.connect(filter).connect(g).connect(this.outputNode() || ctx.destination);
    src.start();
  },
  play(id, opts = {}) {
    const category = opts.category || this.categoryFor(id, "ops");
    const minGap = opts.minGap ?? 0.10;
    if (!this.canPlay(id, category, minGap)) return false;
    this.lastPlayedId = id;
    window.TarinaiEvents.emit("audio:play", { id, category, synthetic: !this.samples[id] });
    const playScale = this.startupGainScale();
    if (this.samples[id]) {
      const base = this.samples[id];
      this.ensure();
      const node = base.cloneNode(true);
      node.volume = Math.min(1, base.volume * (this.categoryGain?.[category] ?? 1) * (this.idGain?.[id] ?? 1) * playScale);
      this.beginVoice(Math.max(0.08, Number(node.duration) || 0.16));
      node.play().catch(() => {});
      return true;
    }
    const prevPlayScale = this._currentPlayGainScale || 1;
    this._currentPlayGainScale = playScale;
    try { this.synth(id, category); } finally { this._currentPlayGainScale = prevPlayScale; }
    return true;
  },
  synth(id, category) {
    const prevSynthGain = this._synthIdGain || 1;
    this._synthIdGain = Math.max(0.25, this.idGain?.[id] ?? 1);
    const t = (ms, fn) => setTimeout(() => {
      const prev = this._synthIdGain || 1;
      this._synthIdGain = Math.max(0.25, this.idGain?.[id] ?? 1);
      try { fn(); } finally { this._synthIdGain = prev; }
    }, ms);
    try {
    switch (id) {
      case "sfx_notify":
        this.tone(880, 0.055, "sine", 0.022, 80, category); t(62, () => this.tone(1180, 0.075, "triangle", 0.020, -40, category)); break;
      case "sfx_ui_click": this.tone(520, 0.035, "square", 0.010, 80, category); break;
      case "sfx_ui_fold": this.tone(420, 0.045, "triangle", 0.012, -130, category); break;
      case "sfx_place": this.tone(360, 0.055, "triangle", 0.020, -80, category); break;
      case "sfx_delete": this.noise(0.06, 0.018, category, 1600); this.tone(740, 0.045, "sine", 0.012, -240, category); break;
      case "sfx_poke": this.tone(180, 0.085, "sawtooth", 0.023, -70, category); break;
      case "sfx_grab": this.tone(300, 0.050, "triangle", 0.018, 90, category); break;
      case "sfx_drop": this.tone(220, 0.060, "triangle", 0.018, -80, category); break;
      case "sfx_water_hose": this.noise(0.13, 0.018, category, 2400); break;
      case "sfx_drink": this.tone(720, 0.045, "sine", 0.012, -120, category); t(42, () => this.tone(620, 0.040, "sine", 0.010, -80, category)); break;
      case "sfx_ball_hit": this.tone(260, 0.065, "triangle", 0.020, 120, category); break;
      case "sfx_stone_impact": this.tone(110, 0.080, "sawtooth", 0.032, -50, category); this.noise(0.05, 0.018, category, 600); break;
      case "sfx_firecracker_fuse": this.noise(0.18, 0.018, category, 5200); break;
      case "sfx_firecracker_explode": this.tone(90, 0.120, "sawtooth", 0.060, -30, category); t(42, () => this.tone(55, 0.200, "square", 0.040, -20, category)); this.noise(0.16, 0.032, category, 900); break;
      case "sfx_genkotsu_fall": this.tone(760, 0.20, "sawtooth", 0.018, -500, category); this.noise(0.16, 0.018, category, 1800); break;
      case "sfx_genkotsu_impact": this.tone(64, 0.20, "square", 0.070, -18, category); this.noise(0.18, 0.040, category, 720); break;
      case "sfx_ground_rumble": this.tone(46, 0.34, "sawtooth", 0.032, -8, category); t(120, () => this.tone(39, 0.32, "triangle", 0.026, 6, category)); break;
      case "sfx_grass": this.noise(0.08, 0.011, category, 3000); break;
      case "sfx_zunchi": this.tone(96, 0.070, "triangle", 0.014, -24, category); this.noise(0.05, 0.010, category, 460); break;
      case "sfx_ant_drag": this.noise(0.12, 0.012, category, 1800); this.tone(210, 0.040, "triangle", 0.010, -70, category); break;
      case "sfx_ant_die": this.tone(150, 0.038, "square", 0.012, -55, category); break;
      case "sfx_ant_nest": this.noise(0.11, 0.018, category, 780); this.tone(170, 0.060, "triangle", 0.014, -40, category); break;
      case "sfx_queen_ant": this.tone(240, 0.085, "triangle", 0.025, -40, category); t(70, () => this.noise(0.08, 0.014, category, 1300)); break;
      case "sfx_birth": this.tone(520, 0.08, "sine", 0.028, 100, category); t(70, () => this.tone(760, 0.10, "triangle", 0.024, 80, category)); break;
      case "sfx_death": this.tone(150, 0.22, "sine", 0.028, -70, category); break;
      case "sfx_damage_soft": this.tone(300, 0.055, "triangle", 0.018, -90, category); break;
      case "sfx_damage_heavy": this.tone(120, 0.090, "sawtooth", 0.028, -70, category); break;
      case "sfx_fight_hit": this.tone(110, 0.055, "square", 0.018, 70, category); t(35, () => this.tone(90, 0.045, "sawtooth", 0.014, -40, category)); break;
      case "sfx_fight_finish": this.tone(150, 0.090, "triangle", 0.024, -60, category); t(80, () => this.tone(260, 0.070, "sine", 0.016, 60, category)); break;
      case "sfx_sleep": this.tone(320, 0.12, "sine", 0.016, -90, category); break;
      case "sfx_wake": this.tone(650, 0.055, "triangle", 0.017, 170, category); break;
      case "sfx_disease": this.tone(210, 0.11, "sawtooth", 0.020, -130, category); this.noise(0.07, 0.012, category, 700); break;
      case "sfx_heal": this.tone(720, 0.060, "sine", 0.018, 150, category); t(55, () => this.tone(960, 0.075, "triangle", 0.018, 130, category)); break;
      case "sfx_phase": this.tone(440, 0.06, "sine", 0.018, 60, category); break;
      default: this.tone(440, 0.06, "sine", 0.016, 0, category);
    }
    } finally {
      this._synthIdGain = prevSynthGain;
    }
  },
  bubble(text) {
    const s = String(text || "");
    if (s.includes("\u3076\u308B\u3076\u308B")) return this.playSample("voice_temp_cold", 1.20, "voice") || this.play("voice_temp_cold", { category: "voice", minGap: 1.20 });
    if (s.includes("\u3042\u3061\u3085\u3044")) return this.playSample("voice_temp_hot", 1.20, "voice") || this.play("voice_temp_hot", { category: "voice", minGap: 1.20 });
    if (s.includes("\u3082\u3050")) return this.playSample("sfx_eat", 0.20, "voice") || this.play("sfx_eat", { category: "voice", minGap: 0.20 });
    if (s.includes("\u3076\u308a")) return this.playSample("voice_poop", 0.28, "voice") || this.play("sfx_zunchi", { category: "ops", minGap: 0.28 });
    if (s.includes("\u306f\u3063")) return this.playSample("voice_stress", 0.80, "voice") || this.play("sfx_damage_soft", { category: "voice", minGap: 0.80 });
    if (s.includes("Zzz")) return this.playSample("sfx_sleep", 1.25, "voice") || this.play("sfx_sleep", { category: "voice", minGap: 1.25 });
    if (s.includes("\u306f\u3041") || s.includes("\u306f\u3042")) return this.playSample("voice_flee", 0.70, "voice") || this.play("sfx_damage_heavy", { category: "voice", minGap: 0.70 });
    if (s.includes("\u306f\u3046") || s.includes("\u306f\u3045")) return this.playSample("voice_hau", 0.45, "voice") || this.play("sfx_wake", { category: "voice", minGap: 0.45 });
    if (s.includes("\u307d\u304b")) return this.playSample("voice_sunbath", 0.95, "voice") || this.play("sfx_heal", { category: "voice", minGap: 0.95 });
    return false;
  },
  eat() { if (!this.playSample("sfx_eat", 0.20, "voice")) this.play("sfx_eat", { category: "voice", minGap: 0.20 }); },
  poke() { this.play("sfx_poke", { category: "ops", minGap: 0.07 }); },
  birth() { this.play("sfx_birth", { category: "voice", minGap: 0.18 }); },
  death() { this.play("sfx_death", { category: "voice", minGap: 0.20 }); },
  fight() { this.play("sfx_fight_hit", { category: "voice", minGap: 0.09 }); },
  fightFinish() { this.play("sfx_fight_finish", { category: "voice", minGap: 0.40 }); },
  explode() { if (!this.playSample("sfx_firecracker_explode", 0.30, "ops")) this.play("sfx_firecracker_explode", { category: "ops", minGap: 0.30 }); },
  phase() { this.play("sfx_phase", { category: "notify", minGap: 1.0 }); },
  notify() { this.play("sfx_notify", { category: "notify", minGap: 0.12 }); },
  uiClick() { this.play("sfx_ui_click", { category: "ops", minGap: 0.035 }); },
  uiFold() { this.play("sfx_ui_fold", { category: "ops", minGap: 0.08 }); },
  place(type = "") {
    if (type === "genkotsu") return this.play("sfx_genkotsu_fall", { category: "ops", minGap: 0.10 });
    if (type === "firecracker") return this.play("sfx_firecracker_fuse", { category: "ops", minGap: 0.18 });
    if (type === "grass") return this.play("sfx_grass", { category: "ops", minGap: 0.08 });
    if (type === "zunchi") return this.play("sfx_zunchi", { category: "ops", minGap: 0.12 });
    if (type === "ant_nest" || type === "nest_box" || type === "pipe") return this.play("sfx_ant_nest", { category: "ops", minGap: 0.12 });
    return this.play("sfx_place", { category: "ops", minGap: 0.08 });
  },
  delete() { this.play("sfx_delete", { category: "ops", minGap: 0.08 }); },
  grab() { this.play("sfx_grab", { category: "ops", minGap: 0.08 }); },
  drop() { this.play("sfx_drop", { category: "ops", minGap: 0.08 }); },
  waterHose() { this.play("sfx_water_hose", { category: "ops", minGap: 0.20 }); },
  shoot() { this.play("sfx_shoot", { category: "ops", minGap: 0.045 }); },
  boltAction() { this.play("sfx_bolt_action", { category: "ops", minGap: 0.10 }); },
  ballHit() { this.play("sfx_ball_hit", { category: "ops", minGap: 0.08 }); },
  stoneImpact() { this.play("sfx_stone_impact", { category: "ops", minGap: 0.18 }); },
  genkotsuImpact() { this.play("sfx_genkotsu_impact", { category: "ops", minGap: 0.20 }); setTimeout(() => this.play("sfx_ground_rumble", { category: "ops", minGap: 0.20 }), 80); },
  damage(amount = 0) { this.play(amount >= 18 ? "sfx_damage_heavy" : "sfx_damage_soft", { category: "voice", minGap: amount >= 18 ? 0.16 : 0.09 }); },
  disease() { this.play("sfx_disease", { category: "voice", minGap: 0.55 }); },
  heal() { this.play("sfx_heal", { category: "voice", minGap: 0.40 }); },
  antDrag() { this.play("sfx_ant_drag", { category: "voice", minGap: 0.50 }); },
  antDie() { this.play("sfx_ant_die", { category: "voice", minGap: 0.18 }); },
  antNest() { this.play("sfx_ant_nest", { category: "ops", minGap: 0.28 }); },
  queenAnt() { this.play("sfx_queen_ant", { category: "voice", minGap: 0.80 }); },
};

audio.applySoundPack?.(window.TARINAI_SOUND_PACK);
audio.loadSettings();
window.TarinaiAudio = audio;