demotivational poster generator

This commit is contained in:
loicbersier 2020-02-21 01:34:16 +01:00
parent 276f7cbaa1
commit dfa2a8e414

115
commands/images/poster.js Normal file
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const { Command } = require('discord-akairo');
let gm = require('gm');
const os = require('os');
const fetch = require('node-fetch');
const fs = require('fs');
class posterCommand extends Command {
constructor() {
super('poster', {
aliases: ['poster'],
category: 'images',
clientPermissions: ['SEND_MESSAGES', 'ATTACH_FILES'],
args: [
{
id: 'link',
prompt: {
start: 'Please input a link to use, say `cancel` to stop the command'
},
type: 'string',
},
{
id: 'message',
prompt: {
start: 'Please input a caption, say `cancel` to stop the command'
},
type: 'string',
match: 'rest'
}
],
description: {
content: 'Create demotivational poster (use ``|`` to separate top text and bottom text) WIP',
usage: '[link to image] [topText|bottomText]',
examples: ['']
}
});
}
async exec(message, args) {
let output = `${os.tmpdir()}/poster${message.id}.jpg`;
let options = args.message.trim().split('|');
if (options[0] == undefined)
options[0] = '';
else if (options[1] == undefined)
options[1] = '';
let url = args.link;
if (!url) {
return message.channel.send('You need an image to use this command!');
}
let loadingmsg = await message.channel.send('Processing <a:loadingmin:527579785212329984>');
// Create new graphicsmagick instance
fetch(url)
.then(res => {
const dest = fs.createWriteStream(`${os.tmpdir()}/${message.id}.jpg`);
res.body.pipe(dest);
dest.on('finish', async () => {
let img = gm(`${os.tmpdir()}/${message.id}.jpg`);
// Set some defaults
const TOP_TEXT = options[0];
const BOTTOM_TEXT = options[1];
const FONT = './asset/times.ttf';
const FONT_FILL = '#FFF';
const TEXT_POS = 'center';
const STROKE_COLOR = '#000';
const PADDING = 40;
// Get the image size to calculate top and bottom text positions
img.size(function(err, value) {
// Set text position for top and bottom
const TOP_POS = Math.abs((value.height / 2) - PADDING) + 110;
const BOTTOM_POS = (value.height / 2) - PADDING + 180;
//const FONT_SIZE1 = 50;
const FONT_SIZE1 = (value.width / 12);
const FONT_SIZE2 = (value.width / 12) - 20;
//const FONT_SIZE2 = 30;
// Write text on image using graphicsmagick
img.shave(1,1)
.borderColor('white')
.border(2,2)
.borderColor('black')
.border(50,200)
.fill(FONT_FILL)
.stroke(STROKE_COLOR, -2)
.font(FONT, FONT_SIZE1)
.drawText(0, TOP_POS, TOP_TEXT, TEXT_POS)
.font(FONT, FONT_SIZE2)
.drawText(0, BOTTOM_POS, BOTTOM_TEXT, TEXT_POS)
.write(output, function(err) {
loadingmsg.delete();
if (err) {
console.error(err);
return message.channel.send('An error just occured! is it a static image?');
}
return message.channel.send({files: [output]});
});
});
});
})
.catch((err) => {
console.error(err);
return message.channel.send(`Please input a correct link \`${err}\``);
});
}
}
module.exports = posterCommand;