97 lines
2.4 KiB
JavaScript
97 lines
2.4 KiB
JavaScript
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const sharp = require("sharp");
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const fs = require("fs");
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/*
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RADIO COVER
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*/
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const radio_cover_sizes = [
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{ width: 128, height: 128, fit: "cover" },
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{ width: 64, height: 64, fit: "cover" },
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{ width: 32, height: 32, fit: "cover" }
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];
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exports.resize_image_for_radio = function (image, callback) {
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resizer(image, radio_cover_sizes, callback);
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};
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/*
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ALBUM COVER
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*/
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const album_cover_sizes = [
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{ width: 256, height: 256, fit: "cover" },
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{ width: 128, height: 128, fit: "cover" },
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{ width: 64, height: 64, fit: "cover" },
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{ width: 32, height: 32, fit: "cover" }
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];
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exports.resize_image_for_album = function (image, callback) {
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if (typeof image === 'string') {
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let data = fs.readFileSync(image);
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resizer(data, album_cover_sizes, callback);
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} else {
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resizer(image, album_cover_sizes, callback);
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}
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};
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/*
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ARTIST COVER
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*/
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const artist_cover_sizes = [
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{ width: 1024, height: 512, fit: "cover" },
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{ width: 512, height: 256, fit: "cover" },
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{ width: 256, height: 128, fit: "cover" },
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{ width: 128, height: 64, fit: "cover" },
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{ width: 64, height: 32, fit: "cover" }
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];
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exports.resize_image_for_artist = function (image, callback) {
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if (typeof image === 'string') {
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console.log("resizing: " + image);
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let data = fs.readFileSync(image);
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resizer(data, artist_cover_sizes, callback);
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} else {
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resizer(image, artist_cover_sizes, callback);
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}
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};
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/*
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BOX COVER
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*/
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const box_cover_sizes = [
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{ width: 256, height: 362, fit: "cover" },
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{ width: 128, height: 181, fit: "cover" },
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{ width: 64, height: 90, fit: "cover" },
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{ width: 32, height: 45, fit: "cover" }
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];
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exports.resize_image_for_box = function (image, callback) {
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if (typeof image === 'string') {
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let data = fs.readFileSync(image);
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resizer(data, box_cover_sizes, callback);
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} else {
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resizer(image, box_cover_sizes, callback);
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}
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};
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function resizer(image, array, callback) {
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let result = {}
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let runner = (image, index) => {
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if (index < array.length) {
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let size = array[index];
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sharp(image)
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.resize(size)
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.png()
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.toBuffer()
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.then(data => {
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result["cover" + size.width] = "data:image/png;base64, " + Buffer.from(data).toString("base64");
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runner(data, ++index);
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}).catch(err=>{
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console.log(err);
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});
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} else {
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if (callback) {
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callback(result);
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}
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}
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}
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runner(image, 0);
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}
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