Files
ai.interactive.fiction/public/js/audio-manager-module.js

1110 lines
40 KiB
JavaScript

/**
* AudioManager Module
* Manages loading and playback of non-TTS audio effects triggered by tags.
*/
import { BaseModule } from './base-module.js';
class AudioManagerModule extends BaseModule {
constructor() {
super('audio-manager', 'Audio Manager');
this.sounds = new Map();
this.sfxCache = new Map();
this.musicCache = new Map();
this.imageCache = new Map();
this.currentAudio = null;
this.currentAudioRole = null;
this.currentLoop = null;
this.currentMusic = null;
this.queuedMusic = null;
this.masterVolume = 1.0;
this.musicVolume = 1.0;
this.sfxVolume = 1.0;
this.ttsVolume = 1.0;
this.masterVolumeEnabled = true;
this.musicVolumeEnabled = true;
this.sfxVolumeEnabled = true;
this.ttsVolumeEnabled = true;
this.musicDuckingAmount = 0.3;
this.musicDuckingEnabled = true;
this.musicDuckingFactor = 1.0;
this.musicFadeToken = 0;
this.activeTtsPlaybackCount = 0;
this.ttsQueueEmpty = true;
this.pendingMusicPlayback = null;
this.currentMusicState = null;
this.mediaPreloadTimeoutMs = 60000;
this.assetRoots = {
images: '/images/',
music: '/music/',
sounds: '/sounds/'
};
// Add persistence-manager as a dependency
this.dependencies = ['persistence-manager'];
}
/**
* Load module dependencies
* @returns {Promise} - Resolves when dependencies are loaded
*/
async loadDependencies() {
try {
this.reportProgress(40, "Initializing audio system");
return true;
} catch (error) {
console.error("Error loading AudioManager dependencies:", error);
return false;
}
}
/**
* Initialize the module
* @returns {Promise<boolean>} - Resolves with success status
*/
async initialize() {
try {
// Set up audio context if needed
this.setupAudioContext();
this.loadPersistedVolumes();
this.setupEventListeners();
// Load some basic sound effects
this.reportProgress(80, "Loading sound effects");
this.reportProgress(100, "Audio system ready");
return true;
} catch (error) {
console.error("Error initializing AudioManager:", error);
return false;
}
}
loadPersistedVolumes() {
const persistenceManager = this.getModule('persistence-manager');
if (!persistenceManager) {
return;
}
this.masterVolume = this.clampVolume(persistenceManager.getPreference('audio', 'masterVolume', this.masterVolume));
this.musicVolume = this.clampVolume(persistenceManager.getPreference('audio', 'musicVolume', this.musicVolume));
this.sfxVolume = this.clampVolume(persistenceManager.getPreference('audio', 'sfxVolume', this.sfxVolume));
this.ttsVolume = this.clampVolume(persistenceManager.getPreference('audio', 'ttsVolume', this.ttsVolume));
this.masterVolumeEnabled = persistenceManager.getPreference('audio', 'masterVolumeEnabled', this.masterVolumeEnabled) !== false;
this.musicVolumeEnabled = persistenceManager.getPreference('audio', 'musicVolumeEnabled', this.musicVolumeEnabled) !== false;
this.sfxVolumeEnabled = persistenceManager.getPreference('audio', 'sfxVolumeEnabled', this.sfxVolumeEnabled) !== false;
this.ttsVolumeEnabled = persistenceManager.getPreference('audio', 'ttsVolumeEnabled', this.ttsVolumeEnabled) !== false;
this.musicDuckingAmount = this.clampVolume(persistenceManager.getPreference('audio', 'musicDuckingAmount', this.musicDuckingAmount));
this.musicDuckingEnabled = persistenceManager.getPreference('audio', 'musicDuckingEnabled', this.musicDuckingEnabled) !== false;
}
setupEventListeners() {
this.addEventListener(document, 'story:media-cue', (event) => {
this.handleMediaCue(event.detail || {});
});
this.addEventListener(document, 'story:media-block', (event) => {
this.handleMediaBlock(event.detail || {});
});
this.addEventListener(document, 'story:tag', (event) => {
this.handleStoryTag(event.detail || {});
});
this.addEventListener(document, 'game:config', (event) => {
this.applyGameConfig(event.detail || {});
});
this.addEventListener(document, 'preference-updated', (event) => {
const { category, key, value } = event.detail || {};
if (category !== 'audio') {
return;
}
if (key === 'masterVolume') this.setMasterVolume(value);
if (key === 'musicVolume') this.setMusicVolume(value);
if (key === 'sfxVolume') this.setSfxVolume(value);
if (key === 'ttsVolume') this.setTtsVolume(value);
if (key === 'masterVolumeEnabled') this.setVolumeEnabled('master', value);
if (key === 'musicVolumeEnabled') this.setVolumeEnabled('music', value);
if (key === 'sfxVolumeEnabled') this.setVolumeEnabled('sfx', value);
if (key === 'ttsVolumeEnabled') this.setVolumeEnabled('tts', value);
if (key === 'musicDuckingAmount') this.setMusicDuckingAmount(value);
if (key === 'musicDuckingEnabled') this.setMusicDuckingEnabled(value);
});
this.addEventListener(document, 'tts:playback-start', () => {
this.activeTtsPlaybackCount += 1;
this.ttsQueueEmpty = false;
this.duckMusicForSpeech();
});
this.addEventListener(document, 'tts:audio-started', () => {
this.ttsQueueEmpty = false;
this.duckMusicForSpeech();
});
this.addEventListener(document, 'tts:playback-end', () => {
this.activeTtsPlaybackCount = Math.max(0, this.activeTtsPlaybackCount - 1);
this.restoreMusicIfSpeechFinished();
});
this.addEventListener(document, 'tts:queue-empty', () => {
this.ttsQueueEmpty = true;
this.restoreMusicIfSpeechFinished();
});
this.addEventListener(document, 'tts:speechCompleted', () => {
this.activeTtsPlaybackCount = Math.max(0, this.activeTtsPlaybackCount - 1);
this.restoreMusicIfSpeechFinished();
});
const unlock = () => this.unlockPendingAudio();
document.addEventListener('pointerdown', unlock, { passive: true });
document.addEventListener('keydown', unlock);
}
applyGameConfig(config) {
const assets = config?.assets || {};
this.assetRoots = {
images: assets.images || this.assetRoots.images,
music: assets.music || this.assetRoots.music,
sounds: assets.sounds || assets.sfx || this.assetRoots.sounds
};
}
/**
* Set up Web Audio API context if needed
*/
setupAudioContext() {
// Only create if needed for advanced audio features
if (typeof AudioContext !== 'undefined' || typeof webkitAudioContext !== 'undefined') {
const AudioContextClass = window.AudioContext || window.webkitAudioContext;
this.audioContext = new AudioContextClass();
}
}
/**
* Load a sound file
* @param {string} id - The identifier for the sound
* @param {string} url - The URL of the sound file
* @returns {Promise} A promise that resolves when the sound is loaded
*/
loadSound(id, url) {
return new Promise((resolve, reject) => {
const audio = new Audio(url);
audio.preload = 'auto';
audio.addEventListener('canplaythrough', () => {
this.sounds.set(id, audio);
resolve(audio);
}, { once: true });
audio.addEventListener('error', (error) => {
reject(error);
});
audio.load();
});
}
/**
* Play a sound
* @param {string} id - The identifier for the sound
* @param {boolean} loop - Whether to loop the sound
* @returns {HTMLAudioElement|null} The audio element or null if not found
*/
playSound(id, loop = false) {
const audio = this.sounds.get(id);
if (!audio) {
console.warn(`Sound with id "${id}" not found.`);
return null;
}
if (loop) {
if (this.currentLoop) {
this.currentLoop.pause();
this.currentLoop.currentTime = 0;
}
audio.loop = true;
this.currentLoop = audio;
} else {
this.currentAudio = audio.cloneNode(true);
this.currentAudioRole = 'sfx';
this.setMediaVolume(this.currentAudio, this.getSfxVolume());
this.currentAudio.play().catch(error => {
console.error('Error playing audio:', error);
});
return this.currentAudio;
}
this.setMediaVolume(audio, this.getMusicVolume());
audio.play().catch(error => {
console.error('Error playing audio:', error);
});
return audio;
}
/**
* Play a sound from a URL directly (without preloading)
* @param {string} url - The URL of the sound file
* @param {boolean} loop - Whether to loop the sound
* @returns {HTMLAudioElement} The audio element
*/
playSoundFromUrl(url, loop = false) {
if (loop) {
if (this.currentLoop) {
this.currentLoop.pause();
this.currentLoop.removeAttribute('src');
this.currentLoop.load();
}
this.currentLoop = new Audio(url);
this.currentLoop.loop = true;
this.setMediaVolume(this.currentLoop, this.getMusicVolume());
this.currentLoop.play().catch(error => {
console.error('Error playing audio loop:', error);
});
return this.currentLoop;
} else {
this.currentAudio = new Audio(url);
this.currentAudioRole = 'sfx';
this.setMediaVolume(this.currentAudio, this.getSfxVolume());
this.currentAudio.play().catch(error => {
console.error('Error playing audio:', error);
});
return this.currentAudio;
}
}
/**
* Stop a specific sound
* @param {string} id - The identifier for the sound
*/
stopSound(id) {
const audio = this.sounds.get(id);
if (audio) {
audio.pause();
audio.currentTime = 0;
}
}
/**
* Stop all sounds
*/
stopAllSounds() {
if (this.currentAudio) {
this.currentAudio.pause();
this.currentAudio.currentTime = 0;
this.currentAudio = null;
this.currentAudioRole = null;
}
if (this.currentLoop) {
this.currentLoop.pause();
this.currentLoop.currentTime = 0;
this.currentLoop = null;
}
this.sounds.forEach(audio => {
audio.pause();
audio.currentTime = 0;
});
this.stopCurrentMusic();
this.queuedMusic = null;
this.pendingMusicPlayback = null;
this.activeTtsPlaybackCount = 0;
this.ttsQueueEmpty = true;
this.musicDuckingFactor = 1.0;
this.musicFadeToken += 1;
}
/**
* Set the master volume for all sounds
* @param {number} volume - The volume level (0.0 to 1.0)
*/
setMasterVolume(volume) {
this.masterVolume = this.clampVolume(volume);
this.updateVolumes();
}
/**
* Set the speech volume
* @param {number} volume - The volume level (0.0 to 1.0)
*/
setTtsVolume(volume) {
this.ttsVolume = this.clampVolume(volume);
this.updateVolumes();
}
/**
* Set the music volume
* @param {number} volume - The volume level (0.0 to 1.0)
*/
setMusicVolume(volume) {
this.musicVolume = this.clampVolume(volume);
this.updateVolumes();
}
/**
* Set the sound effects volume
* @param {number} volume - The volume level (0.0 to 1.0)
*/
setSfxVolume(volume) {
this.sfxVolume = this.clampVolume(volume);
this.updateVolumes();
}
setVolumeEnabled(kind, enabled) {
const value = enabled !== false;
if (kind === 'master') this.masterVolumeEnabled = value;
if (kind === 'music') this.musicVolumeEnabled = value;
if (kind === 'sfx') this.sfxVolumeEnabled = value;
if (kind === 'tts') this.ttsVolumeEnabled = value;
this.updateVolumes();
}
setMusicDuckingAmount(amount) {
this.musicDuckingAmount = this.clampVolume(amount);
if (this.musicDuckingFactor !== 1.0) {
this.duckMusicForSpeech();
} else {
this.updateVolumes();
}
}
setMusicDuckingEnabled(enabled) {
this.musicDuckingEnabled = enabled !== false;
if (this.musicDuckingFactor !== 1.0) {
this.duckMusicForSpeech();
} else {
this.updateVolumes();
}
}
/**
* Update all volume levels based on current settings
*/
updateVolumes() {
this.sounds.forEach(audio => {
const isMusic = audio.loop;
this.setMediaVolume(audio, isMusic ? this.getMusicVolume() : this.getSfxVolume());
});
if (this.currentAudio) {
this.setMediaVolume(this.currentAudio, this.currentAudioRole === 'tts' ? this.getTtsVolume() : this.getSfxVolume());
}
if (this.currentLoop) {
this.setMediaVolume(this.currentLoop, this.getMusicVolume());
}
if (this.currentMusic) {
this.setMediaVolume(this.currentMusic, this.getMusicVolume());
}
}
clampVolume(volume) {
return Math.max(0, Math.min(1, Number.isFinite(Number(volume)) ? Number(volume) : 1));
}
setMediaVolume(audio, volume) {
if (!audio) return;
audio.volume = this.clampVolume(volume);
}
getSfxVolume() {
return this.getMasterVolume() * (this.sfxVolumeEnabled ? this.sfxVolume : 0);
}
getMusicVolume() {
return this.getUnduckedMusicVolume() * this.musicDuckingFactor;
}
getUnduckedMusicVolume() {
return this.getMasterVolume() * (this.musicVolumeEnabled ? this.musicVolume : 0);
}
getMasterVolume() {
return this.masterVolumeEnabled ? this.masterVolume : 0;
}
getTtsVolume() {
return this.getMasterVolume() * (this.ttsVolumeEnabled ? this.ttsVolume : 0);
}
duckMusicForSpeech() {
console.log('AudioManager: Ducking music for TTS playback');
const factor = this.musicDuckingEnabled ? 1 - this.musicDuckingAmount : 1;
this.fadeMusicTo(factor, 500);
}
restoreMusicAfterSpeech() {
console.log('AudioManager: Restoring music after TTS queue drained');
this.fadeMusicTo(1.0, 900);
}
restoreMusicIfSpeechFinished() {
if (this.activeTtsPlaybackCount === 0 && this.ttsQueueEmpty) {
this.restoreMusicAfterSpeech();
}
}
fadeMusicTo(factor, duration = 700) {
this.musicDuckingFactor = Math.max(0, Math.min(1, factor));
if (!this.currentMusic) {
return;
}
const audio = this.currentMusic;
const token = ++this.musicFadeToken;
const startVolume = this.clampVolume(audio.volume);
const targetVolume = this.clampVolume(this.getUnduckedMusicVolume() * this.musicDuckingFactor);
const start = performance.now();
const tick = () => {
if (token !== this.musicFadeToken || this.currentMusic !== audio) {
return;
}
const progress = Math.min(1, (performance.now() - start) / duration);
this.setMediaVolume(audio, startVolume + ((targetVolume - startVolume) * progress));
if (progress < 1) {
requestAnimationFrame(tick);
}
};
tick();
}
getAssetUrl(kind, filename) {
const root = this.assetRoots[kind];
if (!root) {
throw new Error(`Unknown audio asset kind: ${kind}`);
}
const safeName = String(filename || '').replace(/\\/g, '/').replace(/^\/+/, '');
if (!safeName || safeName.includes('..') || /^[a-z]+:/i.test(safeName)) {
throw new Error(`Unsafe asset filename: ${filename}`);
}
return root + safeName.split('/').map(encodeURIComponent).join('/');
}
async preloadSfx(filename) {
const url = this.getAssetUrl('sounds', filename);
if (this.sfxCache.has(url)) return this.sfxCache.get(url);
const promise = this.preloadAudioUrl(url, 'sound effect')
.then(audio => {
this.setMediaVolume(audio, this.getSfxVolume());
return audio;
})
.catch(error => {
this.sfxCache.delete(url);
throw error;
});
this.sfxCache.set(url, promise);
return promise;
}
async preloadMusic(filename) {
const url = this.getAssetUrl('music', filename);
if (this.musicCache.has(url)) return this.musicCache.get(url);
const promise = this.preloadAudioUrl(url, 'music track')
.then(audio => {
this.setMediaVolume(audio, this.getMusicVolume());
return audio;
})
.catch(error => {
this.musicCache.delete(url);
throw error;
});
this.musicCache.set(url, promise);
return promise;
}
preloadAudioUrl(url, label = 'audio') {
return new Promise((resolve, reject) => {
const audio = new Audio(url);
let settled = false;
const finish = (result, error = null) => {
if (settled) return;
settled = true;
clearTimeout(timeoutId);
audio.removeEventListener('canplaythrough', onReady);
audio.removeEventListener('loadeddata', onReady);
audio.removeEventListener('error', onError);
if (error) {
audio.pause();
audio.removeAttribute('src');
audio.load();
reject(error);
} else {
resolve(result);
}
};
const onReady = () => finish(audio);
const onError = () => finish(null, new Error(`Failed to preload ${label}: ${url}`));
const timeoutId = setTimeout(() => {
finish(null, new Error(`Timed out preloading ${label}: ${url}`));
}, this.mediaPreloadTimeoutMs);
audio.preload = 'auto';
audio.addEventListener('canplaythrough', onReady, { once: true });
audio.addEventListener('loadeddata', onReady, { once: true });
audio.addEventListener('error', onError, { once: true });
audio.load();
});
}
async preloadImage(filename) {
const url = this.getAssetUrl('images', filename);
if (this.imageCache.has(url)) return this.imageCache.get(url);
const promise = new Promise((resolve, reject) => {
const image = new Image();
let settled = false;
const finish = (result, error = null) => {
if (settled) return;
settled = true;
clearTimeout(timeoutId);
image.onload = null;
image.onerror = null;
if (error) {
image.src = '';
reject(error);
} else {
resolve(result);
}
};
image.decoding = 'async';
image.onload = () => {
if (typeof image.decode === 'function') {
image.decode().catch(() => null).then(() => finish(image));
} else {
finish(image);
}
};
image.onerror = () => finish(null, new Error(`Failed to preload image: ${url}`));
const timeoutId = setTimeout(() => {
finish(null, new Error(`Timed out preloading image: ${url}`));
}, this.mediaPreloadTimeoutMs);
image.src = url;
}).catch(error => {
this.imageCache.delete(url);
throw error;
});
this.imageCache.set(url, promise);
return promise;
}
async preloadStructuredBlock(block = {}) {
const type = String(block.type || block.kind || '').toLowerCase();
const filename = block.filename || block.metadata?.filename;
if (!filename) return null;
if (type === 'image') return this.preloadImage(filename);
if (type === 'music') return this.preloadMusic(filename);
if (type === 'sfx' || type === 'sound') return this.preloadSfx(filename);
return null;
}
async preloadMediaCues(cues = []) {
const tasks = cues
.filter(cue => cue && cue.filename)
.map(cue => this.preloadStructuredBlock(cue).catch(error => {
console.warn('AudioManager: Media cue preload failed:', error);
throw error;
}));
return Promise.all(tasks);
}
handleMediaCue(cue) {
if (!cue || !cue.type) {
return;
}
if (cue.type === 'sfx') {
this.playSfx(cue.filename, cue);
} else if (cue.type === 'music') {
this.playMusic(cue.filename, cue.mode || 'crossfade', { loop: cue.loop !== false });
}
}
handleMediaBlock(block) {
if (!block || block.type !== 'music') {
return;
}
this.playMusic(block.filename, block.mode || 'crossfade', { loop: block.loop !== false });
}
handleStoryTag(tag) {
const key = String(tag?.key || '').toLowerCase();
const filename = String(tag?.value || tag?.filename || '').trim();
if (!key || !filename) {
return;
}
if (key === 'sfx' || key === 'sound' || key === 'audio') {
this.playSfx(filename, this.parseSfxTagOptions(tag.param || tag.options || ''));
return;
}
if (key === 'music') {
const options = this.parseMusicTagOptions(tag.param || tag.options || '');
this.playMusic(filename, options.mode, { loop: options.loop });
}
}
parseMusicTagOptions(optionText) {
const options = {
mode: 'crossfade',
loop: true
};
String(optionText || '')
.split(/[,\s]+/)
.map(token => token.trim().toLowerCase())
.filter(Boolean)
.forEach(token => {
const [key, value] = token.split('=');
if (['queue', 'crossfade', 'cut'].includes(token)) {
options.mode = token;
} else if (['loop', 'looped', 'repeat'].includes(token)) {
options.loop = true;
} else if (['once', 'single', 'no-loop', 'noloop'].includes(token)) {
options.loop = false;
} else if (key === 'loop') {
options.loop = !['false', '0', 'no', 'once'].includes(value);
} else if (key === 'mode' && ['queue', 'crossfade', 'cut'].includes(value)) {
options.mode = value;
}
});
return options;
}
parseSfxTagOptions(optionText) {
const options = {
maxDurationSeconds: 0,
endMode: 'stop',
fadeDurationSeconds: 2
};
String(optionText || '')
.split(/[,\s]+/)
.map(token => token.trim().toLowerCase())
.filter(Boolean)
.forEach(token => {
const [key, value] = token.split('=');
if (['fade', 'fadeout', 'fade-out'].includes(token)) {
options.endMode = 'fade';
} else if (['stop', 'cut', 'halt'].includes(token)) {
options.endMode = 'stop';
} else if (['max', 'duration', 'max-duration', 'limit', 'stop-after', 'fade-after'].includes(key)) {
const seconds = Number(value);
options.maxDurationSeconds = Number.isFinite(seconds) ? Math.max(0, seconds) : 0;
if (key === 'fade-after') options.endMode = 'fade';
} else if (/^\d+(\.\d+)?s?$/.test(token)) {
options.maxDurationSeconds = Number(token.replace(/s$/, ''));
} else if (key === 'mode' && ['fade', 'fadeout', 'fade-out', 'stop', 'cut'].includes(value)) {
options.endMode = value.startsWith('fade') ? 'fade' : 'stop';
} else if (['fade-duration', 'fade-time', 'fade'].includes(key)) {
const seconds = Number(value);
if (Number.isFinite(seconds)) {
options.fadeDurationSeconds = Math.max(0.1, seconds);
options.endMode = 'fade';
}
}
});
return options;
}
async playSfx(filename, options = {}) {
try {
const template = await this.preloadSfx(filename);
const audio = template.cloneNode(true);
this.setMediaVolume(audio, this.getSfxVolume());
this.currentAudio = audio;
this.currentAudioRole = 'sfx';
const maxDuration = Math.max(0, Number(options.maxDurationSeconds || options.maxDuration || 0)) * 1000;
const endMode = String(options.endMode || options.mode || 'stop').toLowerCase().startsWith('fade') ? 'fade' : 'stop';
const fadeDuration = Math.max(100, Number(options.fadeDurationSeconds || options.fadeDuration || 2) * 1000);
let maxTimer = null;
audio.addEventListener('ended', () => {
if (maxTimer) clearTimeout(maxTimer);
if (this.currentAudio === audio) {
this.currentAudio = null;
this.currentAudioRole = null;
}
}, { once: true });
await audio.play();
if (maxDuration > 0) {
const timeoutDuration = endMode === 'fade'
? Math.max(0, maxDuration - fadeDuration)
: maxDuration;
maxTimer = setTimeout(() => {
if (audio.paused || audio.ended) return;
if (endMode === 'fade') {
console.log(`AudioManager: Fading sound effect ${filename} over ${fadeDuration}ms`);
this.fadeOutAudio(audio, fadeDuration);
} else {
audio.pause();
audio.currentTime = 0;
if (this.currentAudio === audio) this.currentAudio = null;
if (this.currentAudio === null) this.currentAudioRole = null;
}
}, timeoutDuration);
}
console.log(`AudioManager: Playing sound effect ${filename}`);
return audio;
} catch (error) {
console.error('AudioManager: Failed to play sound effect:', error);
return null;
}
}
fadeOutAudio(audio, duration = 1000) {
if (!audio) return Promise.resolve(false);
const startVolume = this.clampVolume(audio.volume);
const startedAt = performance.now();
return new Promise(resolve => {
const step = () => {
const progress = Math.min(1, (performance.now() - startedAt) / duration);
this.setMediaVolume(audio, startVolume * (1 - progress));
if (progress < 1 && !audio.paused && !audio.ended) {
requestAnimationFrame(step);
return;
}
audio.pause();
audio.currentTime = 0;
if (this.currentAudio === audio) this.currentAudio = null;
if (this.currentAudio === null) this.currentAudioRole = null;
resolve(true);
};
requestAnimationFrame(step);
});
}
async playMusic(filename, mode = 'crossfade', options = {}) {
const url = this.getAssetUrl('music', filename);
const shouldLoop = options.loop !== false;
const startAt = Math.max(0, Number(options.startAt ?? options.currentTime ?? 0) || 0);
const fadeInSeconds = Math.max(0, Number(options.fadeInSeconds ?? options.fadeIn ?? 0) || 0);
if (mode === 'queue' && this.currentMusic && !this.currentMusic.paused) {
this.queuedMusic = { filename, mode: 'cut', options: { loop: shouldLoop } };
this.currentMusic.addEventListener('ended', () => {
const queued = this.queuedMusic;
this.queuedMusic = null;
if (queued) this.playMusic(queued.filename, queued.mode, queued.options);
}, { once: true });
console.log(`AudioManager: Queued music ${filename}`);
return this.currentMusic;
}
const next = new Audio(url);
next.loop = shouldLoop;
this.setMediaVolume(next, (mode === 'crossfade' && this.currentMusic) || fadeInSeconds > 0 ? 0 : this.getMusicVolume());
if (startAt > 0) {
try {
next.currentTime = startAt;
} catch {
next.addEventListener('loadedmetadata', () => {
next.currentTime = Math.min(startAt, Number.isFinite(next.duration) ? next.duration : startAt);
}, { once: true });
}
}
next.addEventListener('ended', () => {
if (this.currentMusic === next) {
this.currentMusic = null;
this.currentMusicState = null;
}
});
const nextState = {
filename,
url,
loop: shouldLoop,
mode,
startedAt: Date.now()
};
if (mode === 'cut' || !this.currentMusic) {
this.stopCurrentMusic();
this.currentMusic = next;
this.currentMusicState = nextState;
await this.startMusicAudio(next, filename);
if (fadeInSeconds > 0) {
this.fadeAudioTo(next, this.getMusicVolume(), fadeInSeconds * 1000);
}
return next;
}
const previous = this.currentMusic;
this.currentMusic = next;
this.currentMusicState = nextState;
await this.startMusicAudio(next, filename);
this.crossfade(previous, next, 1500);
console.log(`AudioManager: Crossfading music to ${filename}`);
return next;
}
async startMusicAudio(audio, filename) {
try {
await audio.play();
console.log(`AudioManager: Playing music ${filename}`);
} catch (error) {
this.pendingMusicPlayback = { audio, filename };
console.warn('AudioManager: Music playback is waiting for user interaction:', error);
}
}
async unlockPendingAudio() {
if (this.audioContext && this.audioContext.state === 'suspended') {
try {
await this.audioContext.resume();
} catch (error) {
console.warn('AudioManager: Failed to resume audio context:', error);
}
}
if (!this.pendingMusicPlayback) {
return;
}
const pending = this.pendingMusicPlayback;
this.pendingMusicPlayback = null;
this.setMediaVolume(pending.audio, this.getMusicVolume());
try {
await pending.audio.play();
console.log(`AudioManager: Resumed pending music ${pending.filename}`);
} catch (error) {
this.pendingMusicPlayback = pending;
console.warn('AudioManager: Pending music still blocked:', error);
}
}
stopCurrentMusic() {
if (!this.currentMusic) {
return;
}
this.currentMusic.pause();
this.currentMusic.currentTime = 0;
this.currentMusic = null;
this.currentMusicState = null;
}
getMusicState() {
if (!this.currentMusic || this.currentMusic.paused || this.currentMusic.ended || !this.currentMusicState?.filename) {
return null;
}
return {
filename: this.currentMusicState.filename,
currentTime: Math.max(0, Number(this.currentMusic.currentTime || 0)),
loop: Boolean(this.currentMusic.loop),
mode: this.currentMusicState.mode || 'cut',
volume: this.currentMusic.volume,
duckingFactor: this.musicDuckingFactor
};
}
async restoreMusicState(state = null) {
if (!state?.filename) return null;
return this.playMusic(state.filename, 'cut', {
loop: state.loop !== false,
startAt: Number(state.currentTime || 0),
fadeInSeconds: 1.5
});
}
fadeAudioTo(audio, targetVolume, duration = 1000) {
if (!audio) return Promise.resolve(false);
const startVolume = this.clampVolume(audio.volume);
const target = this.clampVolume(targetVolume);
const startedAt = performance.now();
return new Promise(resolve => {
const step = (now) => {
const progress = duration <= 0 ? 1 : Math.min(1, (now - startedAt) / duration);
this.setMediaVolume(audio, startVolume + ((target - startVolume) * progress));
if (progress < 1 && !audio.paused && !audio.ended) {
requestAnimationFrame(step);
return;
}
resolve(true);
};
requestAnimationFrame(step);
});
}
crossfade(previous, next, duration = 1500) {
const start = performance.now();
const previousStart = previous ? this.clampVolume(previous.volume) : 0;
const target = this.clampVolume(this.getMusicVolume());
const tick = () => {
const progress = Math.min(1, (performance.now() - start) / duration);
if (previous) this.setMediaVolume(previous, previousStart * (1 - progress));
this.setMediaVolume(next, target * progress);
if (progress < 1) {
requestAnimationFrame(tick);
return;
}
if (previous) {
previous.pause();
previous.currentTime = 0;
}
this.setMediaVolume(next, this.getMusicVolume());
};
tick();
}
/**
* Check if a sound is currently playing
* @param {string} id - The identifier for the sound
* @returns {boolean} Whether the sound is playing
*/
isPlaying(id) {
const audio = this.sounds.get(id);
return audio ? !audio.paused : false;
}
/**
* Fade out the current audio
* @param {number} duration - The duration of the fade in milliseconds
* @returns {Promise} A promise that resolves when the fade is complete
*/
fadeOutCurrentAudio(duration = 1000) {
return new Promise((resolve) => {
if (!this.currentAudio || this.currentAudio.paused) {
resolve();
return;
}
const audio = this.currentAudio;
const initialVolume = this.clampVolume(audio.volume);
const volumeStep = initialVolume / (duration / 50);
let currentVolume = initialVolume;
const fadeInterval = setInterval(() => {
currentVolume -= volumeStep;
if (currentVolume <= 0) {
clearInterval(fadeInterval);
audio.pause();
audio.currentTime = 0;
this.setMediaVolume(audio, initialVolume); // Reset volume for future use
if (this.currentAudio === audio) {
this.currentAudio = null;
this.currentAudioRole = null;
}
resolve();
} else {
this.setMediaVolume(audio, currentVolume);
}
}, 50);
});
}
/**
* Play speech audio from a Blob
* @param {Blob} audioBlob - The audio Blob to play
* @param {Object} options - Playback options
* @returns {Promise<boolean>} - Resolves with success status
*/
async playSpeech(audioBlob, options = {}) {
if (!audioBlob || !(audioBlob instanceof Blob)) {
console.error('AudioManager: Invalid speech audio blob provided');
return false;
}
try {
// Create object URL from Blob
const audioUrl = URL.createObjectURL(audioBlob);
// Stop any current non-looping audio
if (this.currentAudio) {
this.currentAudio.pause();
this.currentAudio.currentTime = 0;
this.currentAudioRole = null;
}
// Create new audio element
const audio = new Audio(audioUrl);
// Get speech volume from options or preferences
const persistenceManager = this.getModule('persistence-manager');
let speechVolume = 1.0;
if (persistenceManager) {
// Get speech volume from preferences (0.0 to 1.0)
speechVolume = persistenceManager.getPreference('tts', 'volume') || 1.0;
}
// Override with options if provided
if (options.volume !== undefined) {
speechVolume = options.volume;
}
// Apply master volume and speech volume
this.setMediaVolume(audio, speechVolume * this.getTtsVolume());
// Set up cleanup
audio.onended = () => {
URL.revokeObjectURL(audioUrl);
if (this.currentAudio === audio) {
this.currentAudio = null;
this.currentAudioRole = null;
}
if (options.onComplete && typeof options.onComplete === 'function') {
options.onComplete();
}
// Dispatch event for speech completion
window.dispatchEvent(new CustomEvent('tts:speak-completed'));
};
// Handle errors
audio.onerror = (error) => {
console.error('AudioManager: Error playing speech audio:', error);
URL.revokeObjectURL(audioUrl);
if (this.currentAudio === audio) {
this.currentAudio = null;
this.currentAudioRole = null;
}
if (options.onError && typeof options.onError === 'function') {
options.onError(error);
}
// Dispatch event for speech error
window.dispatchEvent(new CustomEvent('tts:speak-error', {
detail: { error: error }
}));
};
// Store as current audio
this.currentAudio = audio;
this.currentAudioRole = 'tts';
// Play the audio
await audio.play();
return true;
} catch (error) {
console.error('AudioManager: Error setting up speech audio:', error);
// Dispatch event for speech error
window.dispatchEvent(new CustomEvent('tts:speak-error', {
detail: { error: error }
}));
return false;
}
}
}
// Create the singleton instance
const AudioManager = new AudioManagerModule();
// Export the module
export { AudioManager };