#!/bin/node
const fs = require('fs');
const fsp = fs.promises;
const covers = require('./covers.js')
const apikey = '77456d34d3c9185016ef4535935dccf3'

function listener() {
	console.log('File changed, updating covers...');
	watcher.close();
	fsp.readFile('../list.json')
	.then(data => {
		return covers.updatecovers(apikey, JSON.parse(data.toString()));
	})
	.then(list => {
		list = list.map(result => {
			if (result.status === 'rejected') {
				throw result.reason;
			}
			return result['value'];
		});
		console.log(`Updated ${list.length} entries`);
		return fsp.writeFile('../list.json', JSON.stringify(list, null, 4));
	})
	.catch(reason => {
		console.log(reason);
	})
	.finally(() => {
		watcher = fs.watch('../list.json', listener);
	});
}

let watcher = fs.watch('../list.json', listener);