// This will not work without WOKCommands and a proper index! See WOKCommands's npm page on how to set up :)

const Discord = require('discord.js')
const midDuel = new Set()

module.exports = {
    name: 'TicTacToe',
    description: 'Fun game of TicTacToe',
    minArgs: 1,
    maxArgs: 1,
    expectedArgs: '{@user}',
    aliases: ['ttt'],
    callback: (message, args) => {
        const author = message.author.id // Player1
        const member = message.mentions.members.first() // Player2
        const authorName = message.author.username // Player 1 Username
        const memberName = member.user.username // Player 2 Username
        
        // All different failures
        if (!member) { // No user mentioned
            return message.channel.send('Incorrect Syntax! Please mention a user!')
        }
        if (member.id === author) { // Played tries to duel himself
            return message.channel.send('Incorrext Syntax! You cannot duel yourself!')
        }
        if (midDuel.has(author)) { // Player tries to create a new TicTacToe match mid-game
            return message.channel.send(`You're currently in a duel!`)
        } else if (midDuel.has(member.id)) { // Player tries to match a player who's mid-game
            return message.channel.send(`<@${member.id}> is currently in a duel!`)
        } if (member.id === message.client.user.id) { // User tries to duel the bot
            return message.channel.send("You can't duel me lol!")
        }
        
        // Adds both players to a set so all of the above failures take affect
        midDuel.add(author)
        midDuel.add(member.id)
        
        // First TTT Pallet
        let turnName
        let a1 = '⬜'
        let a2 = '⬜'
        let a3 = '⬜'
        let b1 = '⬜'
        let b2 = '⬜'
        let b3 = '⬜'
        let c1 = '⬜'
        let c2 = '⬜'
        let c3 = '⬜'
        let xCircle // Used to determine whether the bot needs to place and x or a circle
        let winner // Used to determine who won - Used on the current player's turn
        
        // Creating the actual winner
        const Embed = new Discord.MessageEmbed()
            .setTitle('Tic Tac Toe')
            .setDescription(`🎮 **${authorName}** VS ${memberName} 🎮\n\n🟦🟦🟦🟦🟦\n🟦${a1}${a2}${a3}🟦\n🟦${b1}${b2}${b3}🟦\n🟦${c1}${c2}${c3}🟦\n🟦🟦🟦🟦🟦`)
            .setFooter('You have 10 seconds to reply with your next move!\nYou may type "cancel" at any time to stop the game.\n(Upper left, Up, Upper Right, Left, Middle, Right, Bottom Left, Bottom, Bottom Right)')
            .setColor(3426654)
        message.channel.send(`<@${author}>`, Embed).then(async message => {
            for (i = 0; i < 9; i++) {
                if (i % 2 == 0) { // The game will always start with the author.
                    turnName = author
                    xCircle = '❌'
                    winner = `<@${author}>`
                } else if (i % 2 > 0) {
                    turnName = member.id
                    xCircle = '🔴'
                    winner = `<@${member.id}>`
                }
                const filter = m => m.author.id === turnName
                try {
                    msg = await message.channel.awaitMessages(filter, {
                        max: 1,
                        time: '20000',
                        errors: ['time']
                    })
                    if (msg.first().content.toLowerCase().trim() === 'end') { // The player who's turn it is always has the chance to end the game
                        message.channel.send('Game ended!')
                        midDuel.delete(author)
                        midDuel.delete(member.id)
                        break
                        
                        // User inputs - Declare where the user's icon will be placed next
                    } else {
                        if (msg.first().content.toLowerCase().trim() === 'upper left') {
                            if (a1 == '🔴' || a1 == '❌') { // User tries to place at an already claimed spot
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else { // Sets the spot to the user's icon
                                a1 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'up') {
                            if (a2 == '🔴' || a2 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                a2 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'upper right') {
                            if (a3 == '🔴' || a3 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                a3 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'left') {
                            if (b1 == '🔴' || b1 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                b1 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'middle') {
                            if (b2 == '🔴' || b2 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                b2 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'right') {
                            if (b3 == '🔴' || b3 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                b3 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'bottom left') {
                            if (c1 == '🔴' || c1 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                c1 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'bottom') {
                            if (c2 == '🔴' || c2 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                c2 = xCircle
                            }
                        } else if (msg.first().content.toLowerCase().trim() === 'bottom right') {
                            if (c3 == '🔴' || c3 == '❌') {
                                message.channel.send('That spot is already occupied.. and now you lost lol')
                                midDuel.delete(author)
                                midDuel.delete(member.id)
                                break
                            } else {
                                c3 = xCircle
                            }
                        } else { // User's input does not match any of the above ^
                            message.channel.send('Incorrect input, you lost.')
                            midDuel.delete(author)
                                midDuel.delete(member.id)
                            break
                        }
                    }
                    msg.first().delete() // Deletes the user's message to keep chat less spammy
                } catch (ex) { // Time limit ran out
                    message.channel.send(`<@${turnName}> You took too long to respond, and now you lost. Nice!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                }
                
                // Update the embed with the newly placed icon - Highlight the user's turn
                if (i % 2 == 0) { 
                const updatedEmbed = new Discord.MessageEmbed()
                    .setTitle('Tic Tac Toe')
                    .setDescription(`🎮 ${authorName} VS **${memberName}** 🎮\n\n🟦🟦🟦🟦🟦\n🟦${a1}${a2}${a3}🟦\n🟦${b1}${b2}${b3}🟦\n🟦${c1}${c2}${c3}🟦\n🟦🟦🟦🟦🟦`)
                    .setFooter('You have 10 seconds to reply with your next move!\nYou may type "cancel" at any time to stop the game.\n(Upper left, Up, Upper Right, Left, Middle, Right, Bottom Left, Bottom, Bottom Right)')
                    .setColor(3426654)
                message.edit(updatedEmbed)
                } else if (i % 2 > 0) {
                    const updatedEmbed = new Discord.MessageEmbed()
                    .setTitle('Tic Tac Toe')
                    .setDescription(`🎮 **${authorName}** VS ${memberName} 🎮\n\n🟦🟦🟦🟦🟦\n🟦${a1}${a2}${a3}🟦\n🟦${b1}${b2}${b3}🟦\n🟦${c1}${c2}${c3}🟦\n🟦🟦🟦🟦🟦`)
                    .setFooter('You have 10 seconds to reply with your next move!\nYou may type "cancel" at any time to stop the game.\n(Upper left, Up, Upper Right, Left, Middle, Right, Bottom Left, Bottom, Bottom Right)')
                    .setColor(3426654)
                message.edit(updatedEmbed)
                }
                
                // All possible winning outcomes
                if (a1 == '❌' && b1 == '❌' && c1 == '❌' || a1 == '🔴' && b1 == '🔴' && c1 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (a2 == '❌' && b2 == '❌' && c2 == '❌' || a2 == '🔴' && b2 == '🔴' && c2 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (a3 == '❌' && b3 == '❌' && c3 == '❌' || a3 == '🔴' && b3 == '🔴' && c3 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (a1 == '❌' && a2 == '❌' && a3 == '❌' || a1 == '🔴' && a2 == '🔴' && a3 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (b1 == '❌' && b2 == '❌' && b3 == '❌' || b1 == '🔴' && b2 == '🔴' && b3 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (c1 == '❌' && c2 == '❌' && c3 == '❌' || c1 == '🔴' && c2 == '🔴' && c3 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (a1 == '❌' && b2 == '❌' && c3 == '❌' || a1 == '🔴' && b2 == '🔴' && c3 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (a3 == '❌' && b2 == '❌' && c1 == '❌' || a3 == '🔴' && b2 == '🔴' && c1 == '🔴') {
                    message.channel.send(`${winner} wins!`)
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                } else if (i == 8) { // If for loop reaches i = 8 and no winner has yet to be declared, the bot reaches a tie.
                    message.channel.send("It's a tie!")
                    
                    // Both users get removed from the set, letting them duel again.
                    midDuel.delete(author)
                    midDuel.delete(member.id)
                    break
                }
            }
        })
    }
}