114 lines
4.6 KiB
JavaScript
114 lines
4.6 KiB
JavaScript
import { Router } from 'express';
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import SQL from 'sql-template-strings';
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import {createCanvas, loadImage, registerFont} from "canvas";
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import { loadSuml } from '../loader';
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import avatar from '../avatar';
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import {buildPronoun, parsePronouns} from "../../src/buildPronoun";
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import {loadTsv} from "../../src/tsv";
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import {handleErrorAsync} from "../../src/helpers";
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import { CacheObject } from "../../src/cache";
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import {registerLocaleFont} from "../localeFont";
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const translations = loadSuml('translations');
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const drawCircle = (context, image, x, y, size) => {
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context.save();
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context.beginPath();
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context.arc(x + size / 2, y + size / 2, size / 2, 0, Math.PI * 2, true);
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context.closePath();
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context.clip();
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context.drawImage(image, x, y, size, size)
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context.beginPath();
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context.arc(x, y, size / 2, 0, Math.PI * 2, true);
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context.clip();
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context.closePath();
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context.restore();
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}
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const router = Router();
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router.get('/banner/:pronounName*.png', handleErrorAsync(async (req, res) => {
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const width = 1200
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const height = 600
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const mime = 'image/png';
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const imageSize = 200;
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let leftRatio = 4;
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const pronounName = req.params.pronounName + req.params[0];
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const result = await new CacheObject('banner', `${pronounName}.png`, 24 * 60).fetch(async () => {
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const fontName = registerLocaleFont('fontHeadings', ['regular', 'bold']);
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const canvas = createCanvas(width, height)
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const context = canvas.getContext('2d')
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const bg = await loadImage('static/bg.png');
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context.drawImage(bg, 0, 0, width, height);
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const fallback = async _ => {
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const logo = await loadImage('node_modules/@fortawesome/fontawesome-pro/svgs/light/tags.svg');
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leftRatio = 5;
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context.drawImage(logo, width / leftRatio - imageSize / 2, height / 2 - imageSize / 1.25 / 2, imageSize, imageSize / 1.25);
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context.font = `regular ${translations.title.length < 10 ? 120 : translations.title.length < 14 ? 80 : 72}pt '${fontName}'`;
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context.fillText(translations.title, width / leftRatio + imageSize / 1.5, height / 2 + (translations.title.length < 10 ? 48 : translations.title.length < 14 ? 24 : 24));
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}
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if (pronounName.startsWith('@')) {
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const user = await req.db.get(SQL`SELECT id, username, email, avatarSource FROM users WHERE username=${pronounName.substring(1)}`);
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if (!user) {
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await fallback();
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return canvas.toBuffer(mime);
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}
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const avatarImage = await loadImage(await avatar(req.db, user));
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drawCircle(context, avatarImage, width / leftRatio - imageSize / 2, height / 2 - imageSize / 2, imageSize);
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context.font = `regular 48pt '${fontName}'`
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context.fillText('@' + user.username, width / leftRatio + imageSize, height / 2)
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const logo = await loadImage('static/favicon.svg');
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context.font = `regular 24pt '${fontName}'`
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context.fillStyle = '#C71585';
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const logoSize = 24 * 1.25;
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context.drawImage(logo, width / leftRatio + imageSize, height / 2 + logoSize - 4, logoSize, logoSize / 1.25)
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context.fillText(translations.title, width / leftRatio + imageSize + 36, height / 2 + 48);
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return canvas.toBuffer(mime);
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}
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const pronoun = buildPronoun(
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parsePronouns(loadTsv(__dirname + '/../../data/pronouns/pronouns.tsv')),
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pronounName,
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);
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const logo = await loadImage('node_modules/@fortawesome/fontawesome-pro/svgs/light/tags.svg');
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if (pronounName === 'zaimki' || (!pronoun && pronounName !== global.config.pronouns.any)) {
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await fallback();
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return canvas.toBuffer(mime);
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}
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context.drawImage(logo, width / leftRatio - imageSize / 2, height / 2 - imageSize / 1.25 / 2, imageSize, imageSize / 1.25)
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context.font = `regular 48pt '${fontName}'`;
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context.fillText(translations.pronouns.intro + ':', width / leftRatio + imageSize / 1.5, height / 2 - 36)
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const pronounNameOptions = pronounName === global.config.pronouns.any ? [global.config.pronouns.any] : pronoun.nameOptions();
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context.font = `bold ${pronounNameOptions.length <= 2 ? '70' : '36'}pt '${fontName}'`;
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context.fillText(
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pronounNameOptions.map(o => o.replace(/ ?\[[^\]]+] ?/g, '').trim()).join('\n'),
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width / leftRatio + imageSize / 1.5,
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height / 2 + (pronounNameOptions.length <= 2 ? 72 : 24)
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);
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return canvas.toBuffer(mime);
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});
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return res.set('content-type', mime).send(result);
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}));
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export default router;
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