const { execSync } = require('child_process');
const fs = require('fs');
const path = require('path');


module.exports = {
    name: 'tdoss',
    description: 'Combine picture with tdoss album cover template',
    async execute({ message, args }) {

        let dataDir = path.resolve(__dirname, '..', '..', 'data');
        const directory = path.resolve(dataDir, Math.floor(new Date).toString())
        fs.mkdirSync(directory)
        
        let url = "";
        if(message.attachments.size > 0){
            url = message.attachments.first().url


        } else if(args[0] && args[0].startsWith("https://") ){
                url = args[0];
        }
        else {
            message.channel.send("You have to provide an image to use this command.\nEither via an attachment or via a link (must be the first argument and start with https://)")
            fs.rmSync(`${directory}`, {recursive: true})
            return
        }
        // TODO: Download with correct extension. 
        message.channel.sendTyping();
        const curlCommand = `curl "${url}" -o ${directory}/input.png`;

        if (this.executeCommand(curlCommand).error === true) {
            message.channel.send("Something went wrong during the download.\nTry again and if it keeps happening, contact the owner of the bot.")
            fs.rmSync(`${directory}`, {recursive: true})
            return
        }


        const command = `magick ${dataDir}/tdoss_template.png \\( ${directory}/input.png -resize 800x800^ -gravity center -extent 1000x1000 \\) -compose dst-over -composite ${directory}/tdoss_result.png`;
        if (this.executeCommand(command).error === true) {
            message.channel.send("Something went wrong during image manipulation.\nTry again and if it keeps happening, contact the owner of the bot.")
            fs.rmSync(`${directory}`, {recursive: true})
            return
        }

        let final_image = {
                attachment: path.resolve(`${directory}/tdoss_result.png`),
                name: "tdoss_result.png"
        }

        await message.channel.send({files: [final_image]})
        fs.rmSync(`${directory}`, {recursive: true})
    },


    executeCommand(command) {
        console.log("Executing:", command)
        try {
            const output = execSync(command, { encoding: 'utf-8' })
            if (output.length != 0)
                console.log(output)
        } catch (error) {
            console.error(`Error executing ${command.split(" ")[0]} command:`, error);
            return { error: true };
        }
        return { error: false };
    }

}