104 lines
4.3 KiB
JavaScript
104 lines
4.3 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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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 pronounName = req.params.pronounName + req.params[0];
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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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registerFont('static/fonts/quicksand-v21-latin-ext_latin-regular.ttf', { family: 'Quicksand', weight: 'regular'});
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registerFont('static/fonts/quicksand-v21-latin-ext_latin-700.ttf', { family: 'Quicksand', weight: '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 ${translations.title.length < 10 ? 120 : translations.title.length < 14 ? 80 : 72}pt Quicksand`;
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context.fillText(translations.title, width / leftRatio + imageSize / 1.5, height / 2 + (translations.title.length < 10 ? 48 : translations.title.length < 14 ? 24 : 24));
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}
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if (pronounName.startsWith('@')) {
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const user = await req.db.get(SQL`SELECT id, username, email, avatarSource FROM users WHERE username=${pronounName.substring(1)}`);
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if (!user) {
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await fallback();
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return res.set('content-type', mime).send(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 Quicksand`
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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 Quicksand'
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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 res.set('content-type', mime).send(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 (!pronoun && pronounName !== req.config.pronouns.any) {
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await fallback();
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return res.set('content-type', mime).send(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 Quicksand'
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context.fillText(translations.pronouns.intro + ':', width / leftRatio + imageSize / 1.5, height / 2 - 36)
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const pronounNameOptions = pronounName === req.config.pronouns.any ? [req.config.pronouns.any] : pronoun.nameOptions();
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context.font = `bold ${pronounNameOptions.length <= 2 ? '70' : '36'}pt Quicksand`
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context.fillText(pronounNameOptions.join('\n'), width / leftRatio + imageSize / 1.5, height / 2 + (pronounNameOptions.length <= 2 ? 72 : 24))
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return res.set('content-type', mime).send(canvas.toBuffer(mime));
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}));
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export default router;
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