107 lines
3.4 KiB
TypeScript
107 lines
3.4 KiB
TypeScript
/*
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* Copyright (C) Contributors to the Suwayomi project
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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import type { MessageDescriptor } from '@lingui/core';
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import { msg, t } from '@lingui/core/macro';
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import type { LanguageObject } from '@/lib/ISOLanguageUtil.ts';
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import { getISOLanguage, getPreferredISOLanguageCodes } from '@/lib/ISOLanguageUtil.ts';
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import { i18n } from '@/i18n';
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export enum DefaultLanguage {
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ALL = 'all',
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OTHER = 'other',
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LOCAL_SOURCE = 'localsourcelang',
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PINNED = 'pinned',
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LAST_USED_SOURCE = 'last_used_source',
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}
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const DEFAULT_LANGUAGE_TO_TRANSLATION: Record<DefaultLanguage, MessageDescriptor> = {
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[DefaultLanguage.ALL]: msg`All`,
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[DefaultLanguage.OTHER]: msg`Other`,
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[DefaultLanguage.LOCAL_SOURCE]: msg`Other`,
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[DefaultLanguage.PINNED]: msg`Pinned`,
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[DefaultLanguage.LAST_USED_SOURCE]: msg`Last used`,
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};
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export function getLanguage(code: string): LanguageObject {
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const isoLanguage = getISOLanguage(code);
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if (isoLanguage) {
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return isoLanguage;
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}
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return {
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orgCode: code,
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isoCode: code,
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name: t`Language with code: ${code}`,
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nativeName: t`Language with code: ${code}`,
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};
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}
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export function languageCodeToName(code: string): string {
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const isCustomLanguage = Object.keys(DEFAULT_LANGUAGE_TO_TRANSLATION).includes(code);
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if (isCustomLanguage) {
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return i18n._(DEFAULT_LANGUAGE_TO_TRANSLATION[code as DefaultLanguage]);
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}
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return getLanguage(code).nativeName;
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}
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export const toUniqueLanguageCodes = (codes: string[]): string[] => {
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const languages = codes.map((code) => getLanguage(code));
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const languagesByIsoCode = Object.groupBy(languages, (language) => language.isoCode);
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return Object.entries(languagesByIsoCode)
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.filter(([, languagesOfIsoCode]) => !!languagesOfIsoCode?.length)
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.map(([, languagesOfIsoCode]) => languagesOfIsoCode![0].orgCode);
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};
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export const toComparableLanguage = (code: string): string => getLanguage(code).isoCode;
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export const toComparableLanguages = (codes: string[]): string[] => codes.map(toComparableLanguage);
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export function getDefaultLanguages(): string[] {
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return [...getPreferredISOLanguageCodes(), DefaultLanguage.ALL];
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}
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/**
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* Sort languages by their native name.
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* Custom languages are optionally treated specially:
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* - All: first
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* - Other: last
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*/
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export const languageSortComparator = (a: string, b: string, specialCustomLanguagesHandling?: boolean) => {
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const isALanguageAll = a === DefaultLanguage.ALL;
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const isALanguageOther = a === DefaultLanguage.OTHER || a === DefaultLanguage.LOCAL_SOURCE;
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const isBLanguageAll = b === DefaultLanguage.ALL;
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const isBLanguageOther = b === DefaultLanguage.OTHER || b === DefaultLanguage.LOCAL_SOURCE;
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if (specialCustomLanguagesHandling) {
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if (isALanguageAll || isBLanguageOther) {
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return -1;
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}
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if (isALanguageOther || isBLanguageAll) {
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return 1;
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}
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}
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return languageCodeToName(a).localeCompare(languageCodeToName(b));
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};
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/**
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* Sort languages by their native name.
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* Custom languages are treated specially:
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* - All: first
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* - Other: last
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*/
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export const languageSpecialSortComparator = (a: string, b: string) => languageSortComparator(a, b, true);
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