import { getRequestHeaders, callPopup } from '../../../script.js';
import { splitRecursive } from '../../utils.js';
import { getPreviewString, saveTtsProviderSettings } from './index.js';
import { initVoiceMap } from './index.js';
export { NovelTtsProvider };
class NovelTtsProvider {
//########//
// Config //
//########//
settings;
voices = [];
separator = ' . ';
audioElement = document.createElement('audio');
defaultSettings = {
voiceMap: {},
customVoices: [],
};
/**
* Perform any text processing before passing to TTS engine.
* @param {string} text Input text
* @returns {string} Processed text
*/
processText(text) {
// Novel reads tilde as a word. Replace with full stop
text = text.replace(/~/g, '.');
// Novel reads asterisk as a word. Remove it
text = text.replace(/\*/g, '');
return text;
}
get settingsHtml() {
let html = `
Use NovelAI's TTS engine.
The default Voice IDs are only examples. Add custom voices and Novel will create a new random voice for it.
Feel free to try different options!
Hint: Save an API key in the NovelAI API settings to use it here.
Custom Voices
`;
return html;
}
// Add a new Novel custom voice to provider
async addCustomVoice() {
const voiceName = await callPopup('Custom Voice name: ', 'input');
this.settings.customVoices.push(voiceName);
this.populateCustomVoices();
initVoiceMap(); // Update TTS extension voiceMap
saveTtsProviderSettings();
}
// Delete selected custom voice from provider
deleteCustomVoice() {
const selected = $('#tts-novel-custom-voices-select').find(':selected').val();
const voiceIndex = this.settings.customVoices.indexOf(selected);
if (voiceIndex !== -1) {
this.settings.customVoices.splice(voiceIndex, 1);
}
this.populateCustomVoices();
initVoiceMap(); // Update TTS extension voiceMap
saveTtsProviderSettings();
}
// Create the UI dropdown list of voices in provider
populateCustomVoices() {
let voiceSelect = $('#tts-novel-custom-voices-select');
voiceSelect.empty();
this.settings.customVoices.forEach(voice => {
voiceSelect.append(`${voice} `);
});
}
async loadSettings(settings) {
// Populate Provider UI given input settings
if (Object.keys(settings).length == 0) {
console.info('Using default TTS Provider settings');
}
$('#tts-novel-custom-voices-add').on('click', () => (this.addCustomVoice()));
$('#tts-novel-custom-voices-delete').on('click', () => (this.deleteCustomVoice()));
// Only accept keys defined in defaultSettings
this.settings = this.defaultSettings;
for (const key in settings) {
if (key in this.settings) {
this.settings[key] = settings[key];
} else {
throw `Invalid setting passed to TTS Provider: ${key}`;
}
}
this.populateCustomVoices();
await this.checkReady();
console.debug('NovelTTS: Settings loaded');
}
// Perform a simple readiness check by trying to fetch voiceIds
// Doesnt really do much for Novel, not seeing a good way to test this at the moment.
async checkReady() {
await this.fetchTtsVoiceObjects();
}
async onRefreshClick() {
return;
}
//#################//
// TTS Interfaces //
//#################//
async getVoice(voiceName) {
if (!voiceName) {
throw 'TTS Voice name not provided';
}
return { name: voiceName, voice_id: voiceName, lang: 'en-US', preview_url: false };
}
async generateTts(text, voiceId) {
const response = await this.fetchTtsGeneration(text, voiceId);
return response;
}
//###########//
// API CALLS //
//###########//
async fetchTtsVoiceObjects() {
let voices = [
{ name: 'Ligeia', voice_id: 'Ligeia', lang: 'en-US', preview_url: false },
{ name: 'Aini', voice_id: 'Aini', lang: 'en-US', preview_url: false },
{ name: 'Orea', voice_id: 'Orea', lang: 'en-US', preview_url: false },
{ name: 'Claea', voice_id: 'Claea', lang: 'en-US', preview_url: false },
{ name: 'Lim', voice_id: 'Lim', lang: 'en-US', preview_url: false },
{ name: 'Aurae', voice_id: 'Aurae', lang: 'en-US', preview_url: false },
{ name: 'Naia', voice_id: 'Naia', lang: 'en-US', preview_url: false },
{ name: 'Aulon', voice_id: 'Aulon', lang: 'en-US', preview_url: false },
{ name: 'Elei', voice_id: 'Elei', lang: 'en-US', preview_url: false },
{ name: 'Ogma', voice_id: 'Ogma', lang: 'en-US', preview_url: false },
{ name: 'Raid', voice_id: 'Raid', lang: 'en-US', preview_url: false },
{ name: 'Pega', voice_id: 'Pega', lang: 'en-US', preview_url: false },
{ name: 'Lam', voice_id: 'Lam', lang: 'en-US', preview_url: false },
];
// Add in custom voices to the map
let addVoices = this.settings.customVoices.map(voice =>
({ name: voice, voice_id: voice, lang: 'en-US', preview_url: false }),
);
voices = voices.concat(addVoices);
return voices;
}
async previewTtsVoice(id) {
this.audioElement.pause();
this.audioElement.currentTime = 0;
const text = getPreviewString('en-US');
const response = await this.fetchTtsGeneration(text, id);
if (!response.ok) {
throw new Error(`HTTP ${response.status}`);
}
const audio = await response.blob();
const url = URL.createObjectURL(audio);
this.audioElement.src = url;
this.audioElement.play();
}
async* fetchTtsGeneration(inputText, voiceId) {
const MAX_LENGTH = 1000;
console.info(`Generating new TTS for voice_id ${voiceId}`);
const chunks = splitRecursive(inputText, MAX_LENGTH);
for (const chunk of chunks) {
const response = await fetch('/api/novelai/generate-voice',
{
method: 'POST',
headers: getRequestHeaders(),
body: JSON.stringify({
'text': chunk,
'voice': voiceId,
}),
},
);
if (!response.ok) {
toastr.error(response.statusText, 'TTS Generation Failed');
throw new Error(`HTTP ${response.status}: ${await response.text()}`);
}
yield response;
}
}
}