import {Chrono} from 'chrono-node';
import {
	type ChatInputCommandInteraction,
	SlashCommandBuilder,
} from 'discord.js';
import type { Settings } from '../../plugin'
import {CheckIn, Nag} from './models';

async function execute(interaction: ChatInputCommandInteraction) {
	const text = interaction.options.getString('text');
	if (text === null || text === undefined) {
		await interaction.reply("Nag can't have a blank `text`, try again.");
		return;
	}
	// Check if we already have an existing nag. In theory, this should be supported entirely, however
	// I want to keep things simple for now.
	const existingNags = await Nag.findAll({
		where: {
			userId: interaction.user.id,
		},
		// order: [["createdAt", "ASC"]],
	});
	console.log('Successfully looked for checkIns');
	if (existingNags && existingNags.length > 0) {
		// TODO: Hmm... For now, I guess we can just update the database.
		for (const nag of existingNags) {
			nag.text = text;
			nag.failText = interaction.options.getString('failtext') ?? undefined;
			await nag.save();
			break;
		}
		await interaction.reply(
			`I'll check every day at 9AM if you've completed '${text}'. If not, I'll nag you! Use /checkin to prevent a shameful callout, and /unnag to cancel.`,
		);
		return;
	}
	// Otherwise, we need to create a new nag.
	const nag = await Nag.create({
		userId: interaction.user.id,
		guildId: interaction.guild?.id,
		channelId: interaction.channel?.id,
		messageId: interaction.id,
		text: text,
		failText: interaction.options.getString('failtext'),
		mentionHere: interaction.options.getBoolean('mentionhere') ?? false,
	});
	await nag.save();
	const chrono = new Chrono();
	const checkIn = chrono.parseDate('today at 9AM');
	if (!checkIn) {
		await interaction.reply(
			'Internal error while saving your nag. Tell Drew the bot is broken!!!',
		);
		return;
	}
	await CheckIn.create({
		nag: {
			id: nag.id,
		},
		lastCheckIn: new Date(Date.now()),
	});
	await interaction.reply(
		`I'll check every day at 9AM if you've completed '${text}'. If not, I'll nag you! Use /checkin to prevent a shameful callout, and /unnag to cancel.`,
	);
}

export default function (_settings: Settings) {
	return {
		data: new SlashCommandBuilder()
			.setName('nag')
			.setDescription('Let Blitzcrank nag you every day about something')
			.addStringOption(option =>
				option
					.setRequired(true)
					.setName('text')
					.setDescription('What you have to do every day'),
			)
			.addStringOption(option =>
				option
					.setName('failtext')
					.setDescription('Custom message to be broadcast on failure')
					.setRequired(false),
			)
			.addBooleanOption(option =>
				option
					.setName('mentionhere')
					.setDescription('Whether to DM you or @ this channel')
					.setRequired(false),
			),
		execute,
	};
}