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39 lines
1.7 KiB
JavaScript
39 lines
1.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.makeArtworkURLTemplate = void 0;
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const validation = require("../json/validation");
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const optional_1 = require("../types/optional");
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const urls_1 = require("../util/urls");
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/**
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* Regex to parse artwork URL template string.
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*/
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const URL_TEMPLATE_PARSER = new RegExp("^({w}|[0-9]+(?:.[0-9]*)?)x({h}|[0-9]+(?:.[0-9]*)?)({c}|[a-z]{2}).({f}|[a-z]+)$");
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/**
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* Create an instance of artwork URL template from string.
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* @param fromString - String to create artwork URL template from.
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* @returns A new artwork URL template or `null` if string
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* does not represent a valid artwork URL template.
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*/
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function makeArtworkURLTemplate(fromString) {
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// A valid URL that ends with '{w}x{h}{c}.{f}'
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// with any of placeholders possibly resolved to an actual value.
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const url = new urls_1.URL(fromString);
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if (url.pathname === undefined) {
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validation.context("makeArtworkURLTemplate", () => {
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validation.unexpectedType("ignoredValue", "A valid URL string", fromString);
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});
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return null;
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}
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// Expecting 5 matches: whole string + width, height, crop code and format.
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const lastPathComponent = fromString.substring(fromString.lastIndexOf("/") + 1);
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const matches = URL_TEMPLATE_PARSER.exec(lastPathComponent);
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if ((0, optional_1.isNothing)(matches) || matches.length !== 5) {
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validation.context("makeArtworkURLTemplate", () => {
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validation.unexpectedType("ignoredValue", "A valid artwork URL template ending with {w}x{h}{c}.{f} format", lastPathComponent);
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});
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return null;
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}
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return fromString;
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}
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exports.makeArtworkURLTemplate = makeArtworkURLTemplate;
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//# sourceMappingURL=artwork.js.map
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