const Command = require('../modules/commands/command');
const { MessageEmbed, MessageMentions } = require('discord.js');
const { Op } = require('sequelize');
const toTime = require('to-time-monthsfork');
const { footer } = require('../utils/discord');

module.exports = class CloseCommand extends Command {
	constructor(client) {
		const i18n = client.i18n.getLocale(client.config.locale);
		super(client, {
			internal: true,
			name: i18n('commands.close.name'),
			description: i18n('commands.close.description'),
			aliases: [
				i18n('commands.close.aliases.delete'),
				i18n('commands.close.aliases.lock'),
			],
			process_args: true,
			args: [
				{
					name: i18n('commands.close.args.ticket.name'),
					description: i18n('commands.close.args.ticket.description'),
					example: i18n('commands.close.args.ticket.example'),
					required: false,
					// for arg parsing
					alias: i18n('commands.close.args.ticket.alias'),
					type: String
				},
				{
					name: i18n('commands.close.args.reason.name'),
					description: i18n('commands.close.args.reason.description'),
					example: i18n('commands.close.args.reason.example'),
					required: false,
					// for arg parsing
					alias: i18n('commands.close.args.reason.alias'),
					type: String
				},
				{
					name: i18n('commands.close.args.time.name'),
					description: i18n('commands.close.args.time.description'),
					example: i18n('commands.close.args.time.example'),
					required: false,
					// for arg parsing
					alias: i18n('commands.close.args.time.alias'),
					type: String
				}
			]
		});
	}

	async execute(message, args) {
		const arg_ticket = this.args[0].name;
		const arg_reason = this.args[1].name;
		const arg_time = this.args[2].name;

		let settings = await message.guild.settings;
		const i18n = this.client.i18n.getLocale(settings.locale);

		if (args[arg_time]) {
			let period;

			try {
				period = toTime(args[arg_time]).ms();
			} catch {
				return await message.channel.send(
					new MessageEmbed()
						.setColor(settings.error_colour)
						.setTitle(i18n('commands.close.response.invalid_time.title'))
						.setDescription(i18n('commands.close.response.invalid_time.description'))
						.setFooter(settings.footer, message.guild.iconURL())
				);
			}

			let tickets = await this.client.db.models.Ticket.findAndCountAll({
				where: {
					last_message: {
						[Op.lte]: new Date(Date.now() - period)
					},
					guild: message.guild.id
				}
			});

			if (tickets.count === 0) {
				return await message.channel.send(
					new MessageEmbed()
						.setColor(settings.error_colour)
						.setTitle(i18n('commands.close.response.no_tickets.title'))
						.setDescription(i18n('commands.close.response.no_tickets.description'))
						.setFooter(settings.footer, message.guild.iconURL())
				);
			} else {
				let collector_message = await message.channel.send(
					new MessageEmbed()
						.setColor(settings.colour)
						.setTitle(i18n('commands.close.response.confirm_multiple.title'))
						.setDescription(i18n('commands.close.response.confirm_multiple.description', tickets.count, tickets.count))
						.setFooter(settings.footer, message.guild.iconURL())
				);

				await collector_message.react('✅');

				const collector_filter = (reaction, user) => {
					return user.id === message.author.id && reaction.emoji.name === '✅';
				};

				let collector = collector_message.createReactionCollector(collector_filter, {
					time: 30000
				});

				collector.on('collect', async () => {
					await collector_message.reactions.removeAll();

					await message.channel.send(
						new MessageEmbed()
							.setColor(settings.success_colour)
							.setTitle(i18n('commands.close.response.closed_multiple.title', tickets.count, tickets.count))
							.setDescription(i18n('commands.close.response.closed_multiple.description', tickets.count, tickets.count))
							.setFooter(settings.footer, message.guild.iconURL())
					);

					for (let ticket of tickets.rows) {
						await this.client.tickets.close(ticket.id, message.author.id, message.guild.id, args[arg_reason]);
					}

				});

				collector.on('end', async (collected) => {
					if (collected.size === 0) {
						await collector_message.reactions.removeAll();
						await collector_message.edit(
							new MessageEmbed()
								.setColor(settings.error_colour)
								.setAuthor(message.author.username, message.author.displayAvatarURL())
								.setTitle(i18n('commands.close.response.confirmation_timeout.title'))
								.setDescription(i18n('commands.close.response.confirmation_timeout.description'))
								.setFooter(footer(settings.footer, i18n('message_will_be_deleted_in', 15)), message.guild.iconURL())
						);
						setTimeout(async () => {
							await collector_message
								.delete()
								.catch(() => this.client.log.warn('Failed to delete response (collector) message'));
							await message
								.delete()
								.catch(() => this.client.log.warn('Failed to delete original message'));
						}, 15000);
					}
				});
			}

		} else {
			let t_row;
			if (args[arg_ticket]) {
				args[arg_ticket] = args[arg_ticket].replace(MessageMentions.CHANNELS_PATTERN, '$1');
				t_row = await this.client.tickets.resolve(args[arg_ticket], message.guild.id);

				if (!t_row) {
					return await message.channel.send(
						new MessageEmbed()
							.setColor(settings.error_colour)
							.setTitle(i18n('commands.close.response.unresolvable.title'))
							.setDescription(i18n('commands.close.response.unresolvable.description', args[arg_ticket]))
							.setFooter(settings.footer, message.guild.iconURL())
					);
				}
			} else {
				t_row = await this.client.db.models.Ticket.findOne({
					where: {
						id: message.channel.id
					}
				});

				if (!t_row) {
					return await message.channel.send(
						new MessageEmbed()
							.setColor(settings.error_colour)
							.setTitle(i18n('commands.close.response.not_a_ticket.title'))
							.setDescription(i18n('commands.close.response.not_a_ticket.description', settings.command_prefix))
							.setFooter(settings.footer, message.guild.iconURL())
					);
				}
			}

			let collector_message = await message.channel.send(
				new MessageEmbed()
					.setColor(settings.colour)
					.setTitle(i18n('commands.close.response.confirm.title'))
					.setDescription(i18n('commands.close.response.confirm.description', t_row.number))
					.setFooter(settings.footer, message.guild.iconURL())
			);

			await collector_message.react('✅');

			const collector_filter = (reaction, user) => {
				return user.id === message.author.id && reaction.emoji.name === '✅';
			};

			let collector = collector_message.createReactionCollector(collector_filter, {
				time: 30000
			});

			collector.on('collect', async () => {
				collector.stop();

				if (message.channel.id === t_row.id) {
					await collector_message.delete();
				} else {
					await collector_message.reactions.removeAll();
					await collector_message.edit(
						new MessageEmbed()
							.setColor(settings.success_colour)
							.setTitle(i18n('commands.close.response.closed.title'))
							.setDescription(i18n('commands.close.response.closed.description', t_row.number))
							.setFooter(settings.footer, message.guild.iconURL())
					);
				}

				await this.client.tickets.close(t_row.id, message.author.id, message.guild.id, args[arg_reason]);
			});

			collector.on('end', async (collected) => {
				if (collected.size === 0) {
					await collector_message.reactions.removeAll();
					await collector_message.edit(
						new MessageEmbed()
							.setColor(settings.error_colour)
							.setAuthor(message.author.username, message.author.displayAvatarURL())
							.setTitle(i18n('commands.close.response.confirmation_timeout.title'))
							.setDescription(i18n('commands.close.response.confirmation_timeout.description'))
							.setFooter(footer(settings.footer, i18n('message_will_be_deleted_in', 15)), message.guild.iconURL())
					);
					setTimeout(async () => {
						await collector_message
							.delete()
							.catch(() => this.client.log.warn('Failed to delete response (collector) message'));
						await message
							.delete()
							.catch(() => this.client.log.warn('Failed to delete original message'));
					}, 15000);
				}
			});
			
		}
	}
};