theluyuan
38ba663466
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Close stale issues and PRs / stale (push) Has been cancelled
84 lines
2.9 KiB
TypeScript
84 lines
2.9 KiB
TypeScript
import i18next from 'i18next';
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import { IReduxState } from '../app/types';
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import { IConfig } from '../base/config/configType';
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import { MEET_FEATURES } from '../base/jwt/constants';
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import { isJwtFeatureEnabled } from '../base/jwt/functions';
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import JITSI_TO_BCP47_MAP from './jitsi-bcp47-map.json';
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import logger from './logger';
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import TRANSCRIBER_LANGS from './transcriber-langs.json';
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const DEFAULT_TRANSCRIBER_LANG = 'en-US';
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/**
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* Determine which language to use for transcribing.
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*
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* @param {*} config - Application config.
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* @returns {string}
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*/
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export function determineTranscriptionLanguage(config: IConfig) {
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const { transcription } = config;
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// if transcriptions are not enabled nothing to determine
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if (!transcription?.enabled) {
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return undefined;
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}
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// Depending on the config either use the language that the app automatically detected or the hardcoded
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// config BCP47 value.
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// Jitsi language detections uses custom language tags, but the transcriber expects BCP-47 compliant tags,
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// we use a mapping file to convert them.
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const bcp47Locale = transcription?.useAppLanguage ?? true
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? JITSI_TO_BCP47_MAP[i18next.language as keyof typeof JITSI_TO_BCP47_MAP]
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: transcription?.preferredLanguage;
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// Check if the obtained language is supported by the transcriber
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let safeBCP47Locale = TRANSCRIBER_LANGS[bcp47Locale as keyof typeof TRANSCRIBER_LANGS] && bcp47Locale;
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if (!safeBCP47Locale) {
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safeBCP47Locale = DEFAULT_TRANSCRIBER_LANG;
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logger.warn(`Transcriber language ${bcp47Locale} is not supported, using default ${DEFAULT_TRANSCRIBER_LANG}`);
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}
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logger.info(`Transcriber language set to ${safeBCP47Locale}`);
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return safeBCP47Locale;
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}
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/**
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* Returns whether there is transcribing.
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*
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* @param {IReduxState} state - The redux state to search in.
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* @returns {boolean}
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*/
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export function isTranscribing(state: IReduxState) {
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return state['features/transcribing'].isTranscribing;
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}
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/**
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* Returns true if there is a recorder transcription session running.
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* NOTE: If only the subtitles are running this function will return false.
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*
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* @param {Object} state - The redux state to search in.
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* @returns {boolean}
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*/
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export function isRecorderTranscriptionsRunning(state: IReduxState) {
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const { metadata } = state['features/base/conference'];
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return isTranscribing(state) && Boolean(metadata?.recording?.isTranscribingEnabled);
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}
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/**
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* Checks whether the participant can start the transcription.
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*
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* @param {IReduxState} state - The redux state.
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* @returns {boolean} - True if the participant can start the transcription.
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*/
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export function canAddTranscriber(state: IReduxState) {
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const { transcription } = state['features/base/config'];
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const isTranscribingAllowed = isJwtFeatureEnabled(state, MEET_FEATURES.TRANSCRIPTION, false);
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return Boolean(transcription?.enabled) && isTranscribingAllowed;
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}
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