avamaxboobs/functions/list/LoadBackup.js

A package for randomly selecting images of various people's boobs. Intended to be used for discord bot commands.

const fs = require('fs')
const path = require('path')

/**
 * Load a backup of a list.
 * @param {string} list the list to load a backup of
 * @example LoadBackup('avamaxboobs')
 */
async function LoadBackup(list){
    if(typeof list !='string') throw new Error('List must be a string');

    const lists = fs.readdirSync(path.join(__dirname.slice(0,__dirname.length-15),'lists'));
    if(!lists.includes(`${list}.json`)) throw new Error(`Invalid list. List must be one of the following: ${lists.map(file=>file.slice(0,file.length-5)).join(', ')}`)

        const dir = path.join(path.join(__dirname,'../../../../'),'avamaxboobs-backups');

        if(!fs.existsSync(dir)) throw new Error('You don\'t have any backups to load! Use the CreateBackup() function to create one!')

        const backupfolder = fs.readdirSync(dir);

        if(!backupfolder.includes(`${list}.json`)) throw new Error(`You don\'t have a backup for ${list}! Use the CreateBackup() function to create one!`);

        const backupfile = fs.readFileSync(path.join(`${dir}`,`${list}.json`));
        const json = JSON.parse(backupfile);
        const jsonstring = JSON.stringify(json).replaceAll(',',',\n').replaceAll('}','\n}');

        fs.writeFileSync(path.join(__dirname.slice(0,__dirname.length-15),'lists',`${list}.json`),jsonstring,'utf-8',(err)=>{
            if(err) throw err;
        });
}

module.exports={
    LoadBackup
}