65 lines
2.1 KiB
TypeScript
65 lines
2.1 KiB
TypeScript
/*
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* Copyright (C) 2026 Fluxer Contributors
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*
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* This file is part of Fluxer.
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*
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* Fluxer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fluxer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {normalizeRegionCode} from '@fluxer/geo_utils/src/RegionCodeValidation';
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import {resolveRegionDisplayName, resolveRegionDisplayNames} from '@fluxer/geo_utils/src/RegionDisplayNameResolver';
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export interface RegionDisplayNameOptions {
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locale?: string;
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fallbackToRegionCode?: boolean;
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}
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function applyRegionCodeFallback(
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regionCode: string,
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displayName: string | undefined,
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options?: RegionDisplayNameOptions,
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): string | undefined {
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if (displayName) {
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return displayName;
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}
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if (!options?.fallbackToRegionCode) {
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return undefined;
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}
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const normalizedRegionCode = normalizeRegionCode(regionCode);
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if (normalizedRegionCode) {
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return normalizedRegionCode;
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}
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const trimmedRegionCode = regionCode.trim();
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return trimmedRegionCode.length > 0 ? trimmedRegionCode : undefined;
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}
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export function getRegionDisplayName(regionCode: string, options?: RegionDisplayNameOptions): string | undefined {
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const displayName = resolveRegionDisplayName(regionCode, options?.locale);
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return applyRegionCodeFallback(regionCode, displayName, options);
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}
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export function getRegionDisplayNames(
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regionCodes: ReadonlyArray<string>,
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options?: RegionDisplayNameOptions,
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): Array<string | undefined> {
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const displayNames = resolveRegionDisplayNames(regionCodes, options?.locale);
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return displayNames.map((displayName, index) => {
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const regionCode = regionCodes[index] ?? '';
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return applyRegionCodeFallback(regionCode, displayName, options);
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});
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}
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