@discord-card/core/lib/util/image.js

Discord Card core

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getFontSize = getFontSize;
exports.loadImage = loadImage;
exports.toImage = toImage;
const canvas_1 = require("canvas");
const axios_1 = require("axios");
function getFontSize(str) {
    if (str.length < 18)
        return 30;
    return (600 * Math.pow(str.length, -1.05)).toFixed(0);
}
/** Load a image from a URL */
function loadImage(url) {
    return __awaiter(this, void 0, void 0, function* () {
        const response = yield axios_1.default.get(url, {
            responseType: 'arraybuffer',
        });
        const buffer = Buffer.from(response.data, 'binary');
        let img = new canvas_1.Image();
        img.src = buffer;
        return img;
    });
}
function toImage(image, name) {
    return __awaiter(this, void 0, void 0, function* () {
        if (image instanceof canvas_1.Canvas) {
            let img = new canvas_1.Image();
            img.src = image.toBuffer();
            return img;
        }
        else if (image instanceof canvas_1.Image)
            return image;
        else if (image instanceof Buffer) {
            let img = new canvas_1.Image();
            img.src = image;
            return img;
        }
        else if (typeof image === 'string')
            return yield loadImage(image);
        else
            throw new Error('Invalid Image Format for: ' + name + '[Image]');
    });
}
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