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