62 lines
1.7 KiB
JavaScript
62 lines
1.7 KiB
JavaScript
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import {
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baseService,
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parseQuality
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} from "./service.js";
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let sharp;
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const qualityTable = {
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low: 25,
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mid: 50,
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high: 80,
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max: 100
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};
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async function loadSharp() {
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let sharpImport;
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try {
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sharpImport = (await import("sharp")).default;
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} catch (e) {
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throw new Error("Could not find Sharp. Please install Sharp manually into your project.");
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}
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return sharpImport;
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}
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const sharpService = {
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validateOptions: baseService.validateOptions,
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getURL: baseService.getURL,
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parseURL: baseService.parseURL,
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getHTMLAttributes: baseService.getHTMLAttributes,
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async transform(inputBuffer, transformOptions) {
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if (!sharp)
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sharp = await loadSharp();
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const transform = transformOptions;
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if (transform.format === "svg")
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return { data: inputBuffer, format: "svg" };
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let result = sharp(inputBuffer, { failOnError: false, pages: -1 });
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result.rotate();
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if (transform.height && !transform.width) {
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result.resize({ height: transform.height });
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} else if (transform.width) {
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result.resize({ width: transform.width });
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}
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if (transform.format) {
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let quality = void 0;
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if (transform.quality) {
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const parsedQuality = parseQuality(transform.quality);
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if (typeof parsedQuality === "number") {
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quality = parsedQuality;
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} else {
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quality = transform.quality in qualityTable ? qualityTable[transform.quality] : void 0;
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}
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}
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result.toFormat(transform.format, { quality });
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}
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const { data, info } = await result.toBuffer({ resolveWithObject: true });
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return {
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data,
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format: info.format
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};
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}
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};
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var sharp_default = sharpService;
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export {
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sharp_default as default
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};
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