const { Client, Message, MessageEmbed } = require("discord.js");
module.exports = {
	name: "connect4",
	aliases: ["c4"],
	usage: "(User)",
	description: "Play a connect 4 game with a user",
	category: "Fun",
	run: async (client, message, args) => {
		const challenger = message.member;
		const oppenent = message.mentions.members.first();

		if (!oppenent) return client.err(message, "Fun", "connect4", 1);

		const question = await message.channel.send(
			`${oppenent}, would you like to play connect 4 against ${challenger}?`,
		);

		["✅", "❌"].forEach(async el => await question.react(el));

		const filter = (reaction, user) =>
			["✅", "❌"].includes(reaction.emoji.name) && user.id === oppenent.id;

		const response = await question.awaitReactions(filter, { max: 1 });

		const reaction = response.first();

		if (reaction.emoji.name === "❌") {return question.edit("Looks like they didn't want to play");}
		else {
			await message.delete();
			await question.delete();

			const board = [
				["⚪", "⚪", "⚪", "⚪", "⚪", "⚪", "⚪"],
				["⚪", "⚪", "⚪", "⚪", "⚪", "⚪", "⚪"],
				["⚪", "⚪", "⚪", "⚪", "⚪", "⚪", "⚪"],
				["⚪", "⚪", "⚪", "⚪", "⚪", "⚪", "⚪"],
				["⚪", "⚪", "⚪", "⚪", "⚪", "⚪", "⚪"],
				["⚪", "⚪", "⚪", "⚪", "⚪", "⚪", "⚪"],
			];

			const renderBoard = board => {
				let tempString = "";
				for (const boardSection of board) {
					tempString += `${boardSection.join("")}\n`;
				}

				tempString = tempString.concat("1️⃣2️⃣3️⃣4️⃣5️⃣6️⃣7️⃣");

				return tempString;
			};

			const initialState = renderBoard(board);

			const initial = new MessageEmbed().setDescription(initialState);

			const gameMessage = await message.channel.send(initial);

			["1️⃣", "2️⃣", "3️⃣", "4️⃣", "5️⃣", "6️⃣", "7️⃣"].forEach(async el =>
				gameMessage.react(el),
			);

			const gameFilter = (reaction, user) =>
				["1️⃣", "2️⃣", "3️⃣", "4️⃣", "5️⃣", "6️⃣", "7️⃣"].includes(
					reaction.emoji.name,
				) &&
        (user.id === oppenent.id || user.id === challenger.id);

			const gameCollector = gameMessage.createReactionCollector(gameFilter);

			const gameData = [
				{ member: challenger, playerColor: "🔴" },
				{ member: oppenent, playerColor: "🟡" },
			];

			let player = 0;

			const checkFour = (a, b, c, d) =>
				a === b && b === c && c === d && a !== "⚪";

			const horizontalCheck = () => {
				for (let i = 0; i < 6; i++) {
					for (let j = 0; j < 4; j++) {
						if (
							checkFour(
								board[i][j],
								board[i][j + 1],
								board[i][j + 2],
								board[i][j + 3],
							)
						) {
							return [
								board[i][j],
								board[i][j + 1],
								board[i][j + 2],
								board[i][j + 3],
							];
						}
					}
				}
			};

			const verticalCheck = () => {
				for (let j = 0; j < 7; j++) {
					for (let i = 0; i < 3; i++) {
						if (
							checkFour(
								board[i][j],
								board[i + 1][j],
								board[i + 2][j],
								board[i + 3][j],
							)
						) {
							return [
								board[i][j],
								board[i + 1][j],
								board[i + 2][j],
								board[i + 3][j],
							];
						}
					}
				}
			};

			const diagonal1 = () => {
				for (let col = 0; col < 4; col++) {
					for (let row = 0; row < 3; row++) {
						if (
							checkFour(
								board[row][col],
								board[row + 1][col + 1],
								board[row + 2][col + 2],
								board[row + 3][col + 3],
							)
						) {
							return [
								board[row][col],
								board[row + 1][col + 1],
								board[row + 2],
								board[col + 2],
								board[row + 3][col + 3],
							];
						}
					}
				}
			};

			const diagonal2 = () => {
				for (let col = 0; col < 4; col++) {
					for (let row = 5; row > 2; row--) {
						if (
							checkFour(
								board[row][col],
								board[row - 1][col + 1],
								board[row - 2][col + 2],
								board[row - 3][col + 3],
							)
						) {
							return [
								board[row][col],
								board[row - 1][col + 1],
								board[row - 2][col + 2],
								board[row - 3][col + 3],
							];
						}
					}
				}
			};

			const tieCheck = () => {
				let count = 0;
				for (const el of board) {
					for (const string of el) {
						if (string !== "⚪") count++;
					}
				}
				if (count === 42) return true;
				else return false;
			};

			const checks = [horizontalCheck, verticalCheck, diagonal1, diagonal2];

			gameCollector.on("collect", (reaction, user) => {
				if (user.id === gameData[player].member.id) {
					const openSpaces = [];

					switch (reaction.emoji.name) {
					case "1️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][0] === "⚪") openSpaces.push({ i, j: 0 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}

						break;
					case "2️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][1] === "⚪") openSpaces.push({ i, j: 1 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}

						break;
					case "3️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][2] === "⚪") openSpaces.push({ i, j: 2 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}
						break;
					case "4️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][3] === "⚪") openSpaces.push({ i, j: 3 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}
						break;
					case "5️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][4] === "⚪") openSpaces.push({ i, j: 4 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}
						break;
					case "6️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][5] === "⚪") openSpaces.push({ i, j: 5 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}
						break;
					case "7️⃣":
						for (let i = 5; i > -1; i--) {
							if (board[i][6] === "⚪") openSpaces.push({ i, j: 6 });
						}
						if (openSpaces.length === 0) {
							return message.channel.send(
								`${gameData[player].member}, that column is already full. Choose a differnt one.`,
							);
						}
						else {
							board[openSpaces[0].i][openSpaces[0].j] =
                  gameData[player].playerColor;
						}
						break;
					}

					if (tieCheck()) {
						const TieEmbed = new MessageEmbed().setDescription(
							renderBoard(board),
						);
						gameCollector.stop("Tie Game");
						return gameMessage.edit(`It was a tie game!`, { embed: TieEmbed });
					}

					for (const func of checks) {
						const data = func();
						if (data) {
							const WinEmbed = new MessageEmbed().setDescription(
								renderBoard(board),
							);
							gameCollector.stop(`${gameData[player].member.id} won`);
							return gameMessage.edit(
								`${gameData[player].member} has won the game!`,
								{ embed: WinEmbed },
							);
						}
					}

					player = (player + 1) % 2;

					const newEmbed = new MessageEmbed().setDescription(
						renderBoard(board),
					);
					gameMessage.edit("", { embed: newEmbed });
				}
			});
		}
	},
};