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type Entries = { [name: string]: string };
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export type SearchJSON = {
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default: string;
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engines: { [key: string]: string };
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};
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export default class Search {
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constructor(
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public defaultEngine: string,
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public engines: Entries,
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) {
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}
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static fromJSON(json: SearchJSON): Search {
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for (let [name, url] of Object.entries(json.engines)) {
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if (!(/^[a-zA-Z0-9]+$/).test(name)) {
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throw new TypeError('Search engine\'s name must be [a-zA-Z0-9]+');
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}
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let matches = url.match(/{}/g);
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if (matches === null) {
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throw new TypeError(`No {}-placeholders in URL of "${name}"`);
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} else if (matches.length > 1) {
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throw new TypeError(`Multiple {}-placeholders in URL of "${name}"`);
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}
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}
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if (!Object.keys(json.engines).includes(json.default)) {
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throw new TypeError(`Default engine "${json.default}" not found`);
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}
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return new Search(json.default, json.engines);
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}
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toJSON(): SearchJSON {
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return {
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default: this.defaultEngine,
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engines: this.engines,
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};
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}
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}
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