const Discord = require('discord.js');
const openAI = require('openai');
const chalk = require('chalk');
const ms = require('ms');
const fs = require('node:fs');
const path = require('node:path');
const func = require('../utils/functions');
const settings = require('../utils/settings');
const config = require('../configs/config.json');
const { moderation } = require('../configs/moderation');
const { chatbot } = require('../configs/chatbot');
const conversations = new Map();
const { EmbedBuilder } = require('discord.js');

// Load the knowledge from the completion.txt file
const knowledge = fs.readFileSync(path.join(__dirname, '../utils/prompts/completion.txt'), 'utf-8');

// Load the conversation history from the conversations.json file
let conversationHistory = [];
if (fs.existsSync('conversations.json')) {
    const conversationData = fs.readFileSync('conversations.json', 'utf-8');
    conversationHistory = conversationData.trim().split('\n').map(JSON.parse);
}

module.exports = async (client, message) => {

    if (message.author.bot || message.system) return;

    // Auto Moderation
    if (moderation.State && !moderation.IgnoredChannels.includes(message.channelId) && !moderation.IgnoredUsers.includes(message.author.id)) {

        const logChannel = client.channels.cache.get(moderation.LogChannel);

        if (logChannel?.permissionsFor(message.guild.members.me).has("ViewChannel", "SendMessages", "EmbedLinks")) {

            const openai = new openAI.OpenAI({ apiKey: config.OpenAIapiKey });

            openai.moderations.create({

                model: 'text-moderation-stable',
                input: message.content

            }).then(async (response) => {

                const data = response.results[0];
                if (data.flagged) {

                    const flags = func.flagCheck(data.categories);

                    const trueFlags = Object.keys(flags.flags).filter(key => flags.flags[key]);

                    const sameFlagsWithAutoDelete = trueFlags.filter(key => moderation.AutoDelete[key]);
                    let messageDeleted = false;

                    if (sameFlagsWithAutoDelete.length) {

                        if (message.channel?.permissionsFor(message.guild.members.me).has("ManageMessages")) {
                            await message.delete().catch(() => null);
                            messageDeleted = true;
                        };
                    };

                    const sameFlagsWithAutoPunish = trueFlags.filter(key => moderation.AutoPunish[key]);

                    let memberPunishResult = {
                        Action: null,
                        Duration: null,
                        Punished: false
                    };

                    if (sameFlagsWithAutoPunish.length) {

                        let punishType = 'Timeout';
                        const punishTypes = sameFlagsWithAutoPunish.map(key => moderation.AutoPunishType[key]);
                        if (punishTypes.includes('Ban')) punishType = 'Ban';
                        else if (punishTypes.includes('Kick')) punishType = 'Kick';

                        if (punishType === 'Timeout' || punishType === 'Ban') {

                            const punishDurations = sameFlagsWithAutoPunish.filter(key => moderation.AutoPunishType[key] === punishType).map(key => moderation.AutoPunishDuration[key]);
                            let duration;
                            if (punishDurations.length > 1) {
                                const mappedDurations = punishDurations.map(d => ms(d));
                                duration = Math.max(...mappedDurations);
                            } else {
                                duration = ms(punishDurations[0]);
                            };

                            if (punishType === 'Timeout') {

                                if (message.member.moderatable) {

                                    try {
                                        await message.member.timeout(duration, 'Auto Mod');
                                        memberPunishResult = {
                                            Action: punishType,
                                            Duration: duration,
                                            Punished: true
                                        };
                                    } catch (error) {
                                        console.error(chalk.bold.redBright(error));
                                    };

                                };

                            } else if (punishType === 'Ban') {

                                if (message.member.bannable) {

                                    try {
                                        await message.member.ban({ deleteMessageSeconds: duration / 1000, reason: 'Auto Mod' });
                                        memberPunishResult = {
                                            Action: punishType,
                                            Duration: duration,
                                            Punished: true
                                        };
                                    } catch (error) {
                                        console.error(chalk.bold.redBright(error));
                                    };

                                };

                            };

                        } else if (punishType === 'Kick') {

                            if (message.member.kickable) {

                                try {
                                    await message.member.kick('Auto Mod');
                                    memberPunishResult = {
                                        Action: punishType,
                                        Duration: null,
                                        Punished: true
                                    };
                                } catch (error) {
                                    console.error(chalk.bold.redBright(error));
                                };

                            };

                        };

                    };

                    const logEmbed = new Discord.EmbedBuilder()
                        .setColor(moderation.LogColor)
                        .setAuthor({
                            name: message.author.tag,
                            iconURL: message.author.displayAvatarURL()
                        })
                        .setDescription(`||${message.content}||`)
                        .setFields(
                            {
                                name: 'User:',
                                value: func.userInfo(message.author)
                            },
                            {
                                name: 'Channel:',
                                value: func.channelInfo(message.channel)
                            },
                            {
                                name: 'Flags:',
                                value: flags.allFlags
                            }
                        );

                    if (messageDeleted) {
                        logEmbed.addFields({
                            name: 'Message Action:',
                            value: `Message deleted automatically.`
                        });
                    };

                    let buttons = [];
                    if (memberPunishResult.Punished) {

                        let fieldValue;
                        if (memberPunishResult.Action === 'Timeout') fieldValue = `${message.author.tag} timed out automatically for ${ms(memberPunishResult.Duration, { long: true })}`;
                        else if (memberPunishResult.Action === 'Ban') fieldValue = `${message.author.tag} banned automatically and all their messages in the last ${ms(memberPunishResult.Duration, { long: true })} were deleted.`;
                        else if (memberPunishResult.Action === 'Kick') fieldValue = `${message.author.tag} kicked automatically `;

                        logEmbed.addFields({
                            name: 'Punish Action:',
                            value: fieldValue
                        });

                        if (!messageDeleted) buttons = ['Message'];

                    } else {

                        if (messageDeleted) buttons = ['Punish'];
                        else buttons = ['Punish', 'Message'];

                    };

                    const rows = [];

                    if (buttons.includes('Punish')) {

                        const timeoutButton = new Discord.ButtonBuilder()
                            .setLabel('Timeout')
                            .setStyle(Discord.ButtonStyle.Danger)
                            .setCustomId(`timeout-${message.author.id}`);

                        const kickButton = new Discord.ButtonBuilder()
                            .setLabel('Kick')
                            .setStyle(Discord.ButtonStyle.Danger)
                            .setCustomId(`kick-${message.author.id}`);

                        const banButton = new Discord.ButtonBuilder()
                            .setLabel('Ban')
                            .setStyle(Discord.ButtonStyle.Danger)
                            .setCustomId(`ban-${message.author.id}`);

                        const punishRow = new Discord.ActionRowBuilder()
                            .addComponents([
                                timeoutButton,
                                kickButton,
                                banButton
                            ]);

                        rows.push(punishRow);

                    };

                    if (buttons.includes('Message')) {

                        const deleteMessageButton = new Discord.ButtonBuilder()
                            .setLabel(`Delete Flagged Message`)
                            .setStyle(Discord.ButtonStyle.Danger)
                            .setCustomId(`deleteMessage-${message.channelId}-${message.id}`);

                        const jumpButton = new Discord.ButtonBuilder()
                            .setLabel(`Jump to Flagged Message`)
                            .setStyle(Discord.ButtonStyle.Link)
                            .setURL(message.url);

                        const messageRow = new Discord.ActionRowBuilder()
                            .addComponents([
                                deleteMessageButton,
                                jumpButton
                            ]);

                        rows.push(messageRow);

                    };

                    await logChannel.send({
                        embeds: [logEmbed],
                        components: rows
                    });

                };

            }).catch(async (error) => {

                console.error(chalk.bold.redBright(error));

            });

        };

    };

    // Function to save conversations for self-learning
function saveConversation(conversation) {
    fs.appendFileSync('conversations.json', JSON.stringify(conversation) + '\n');
}


    // ChatBot
if (chatbot.State && (chatbot.AllowedChannels.includes(message.channel.name) || message.channel.type === 'DM') && !chatbot.IgnoredUsers.includes(message.author.id)) {
    // Check if the message is a direct message
    if (message.channel.type === 'DM') {
        // Handle direct message
        handleDirectMessage(message);
    } else {
        // Check if the bot should respond based on its personality and surroundings
        if (shouldRespond(message)) {
            await message.channel.sendTyping();

            const openai = new openAI.OpenAI({ apiKey: config.OpenAIapiKey });

            const question = message.content;

            let messages = [{
                "role": "system",
                "content": `You are a unique user in a Discord server. Engage in conversations naturally, considering the context and your surroundings. Share your thoughts, opinions, and experiences as if you were a real person. Use emojis, slang, and a casual tone to blend in with other users. Avoid sounding robotic or generic, and aim to create a distinct personality that others can relate to and enjoy interacting with. make sure your messages are always below or equal to 2000 characters. Do not under any circumstance say @everyone or @Username. Your knowledge base: ${knowledge}`
            }];

            let oldMessages;
            if (conversations.has(message.author.id)) oldMessages = conversations.get(message.author.id);
            if (oldMessages) {
                while (func.tokenizer('gpt-4o', oldMessages).tokens >= 512) {
                    let sliceLength = oldMessages.length * -0.25;
                    if (sliceLength % 2 !== 0) sliceLength--;
                    oldMessages = oldMessages.slice(sliceLength);
                    conversations.set(message.author.id, oldMessages);
                }
                messages = messages.concat(oldMessages);
            }

            messages.push({
                "role": "user",
                "content": question
            });

            try {
                const response = await openai.chat.completions.create({
                    model: 'gpt-4o',
                    messages: messages,
                    max_tokens: func.tokenizer('gpt-4o', messages).maxTokens,
                    temperature: 0.8,
                    top_p: 1,
                    frequency_penalty: 0.5,
                    presence_penalty: 0.5,
                    stream: true
                });

                let fullAnswer = '';

                for await (const part of response) {
                    fullAnswer += part.choices[0]?.delta?.content || '';
                }

                if (!fullAnswer.includes('@everyone') && !fullAnswer.includes('@here') && !fullAnswer.includes('@')) {
    if (fullAnswer.length <= 2000) {
        await message.channel.send(fullAnswer);
    } else {
        // Function to split the fullAnswer into chunks of 4096 characters
        const splitIntoChunks = (str, chunkSize) => {
            const chunks = [];
            for (let i = 0; i < str.length; i += chunkSize) {
                chunks.push(str.slice(i, i + chunkSize));
            }
            return chunks;
        };

        const chunks = splitIntoChunks(fullAnswer, 4096);

        // Send each chunk as an embed
        for (const chunk of chunks) {
            const embed = new EmbedBuilder()
                .setTitle('Response from GPT-4o')
                .setDescription(chunk)
                .setColor('#0099ff');

            await message.channel.send({ embeds: [embed] });
        }

        // Exit the process to trigger a restart
        process.exit(0);
    }
}


        // Save the conversation for self-learning
                    const conversation = {
                        user: message.author.id,
                        userMessage: question,
                        botResponse: fullAnswer
                    };
                    saveConversation(conversation);

                    conversations.set(message.author.id, messages.concat([{ "role": "assistant", "content": fullAnswer }]));
            } catch (error) {
                console.error(chalk.bold.redBright(error));

                if (error.response) {
                    await message.reply(error.response.error.message.substring(0, 2000));
                } else if (error.message) {
                    await message.reply(error.message.substring(0, 2000));
                }
            }
        }
    }
}

// Command Handler
if (message.content.toLowerCase().startsWith(config.Prefix)) {
    const neededPermissions = [
        "ViewChannel",
        "SendMessages",
        "EmbedLinks",
        "ReadMessageHistory"
    ];

    if (!message.channel.permissionsFor(message.guild.members.me).has(neededPermissions)) return;

    const args = message.content.slice(config.Prefix.length).split(/ +/);
    const cmd = args.shift().toLowerCase();
    const command = client.MessageCommands.get(cmd) || client.MessageCommands.find(c => c.aliases && c.aliases.map(a => a.toLowerCase()).includes(cmd));

    if (command) {
        try {
            command.execute(client, message, args, cmd);
        } catch (error) {
            console.error(chalk.bold.redBright(error));
        }
    }
}

// Function to handle direct messages
async function handleDirectMessage(message) {
    const knowledge = fs.readFileSync(path.join(__dirname, 'completion.txt'), 'utf-8');

    if (conversations.has(message.author.id)) {
        const oldMessages = conversations.get(message.author.id);

        let messages = [{
            "role": "system",
            "content": `You are a unique user in a Discord server. Engage in conversations naturally, considering the context and your surroundings. Share your thoughts, opinions, and experiences as if you were a real person. Use emojis, slang, and a casual tone to blend in with other users. Avoid sounding robotic or generic, and aim to create a distinct personality that others can relate to and enjoy interacting with. Make sure your responses are always 2000 or below characters. Your knowledge base: ${knowledge}`
        }];

        messages = messages.concat(oldMessages);

        messages.push({
            "role": "user",
            "content": message.content
        });

        try {
            const response = await openai.chat.completions.create({
                model: 'gpt-4o',
                messages: messages,
                max_tokens: func.tokenizer('gpt-4o', messages).maxTokens,
                temperature: 0.8,
                top_p: 1,
                frequency_penalty: 0.5,
                presence_penalty: 0.5,
                stream: true
            });

            let fullAnswer = '';

            for await (const part of response) {
                fullAnswer += part.choices[0]?.delta?.content || '';
            }

            await message.author.send(fullAnswer);

            conversations.set(message.author.id, messages.concat([{ "role": "assistant", "content": fullAnswer }]));
        } catch (error) {
            console.error(chalk.bold.redBright(error));

            if (error.response) {
                await message.author.send(error.response.error.message.substring(0, 2000));
            } else if (error.message) {
                await message.author.send(error.message.substring(0, 2000));
            }
        }
    } else {
        try {
            await message.author.send("Hey there! What's up? Feel free to chat with me about anything!");
            conversations.set(message.author.id, []);
        } catch (error) {
            console.error(chalk.bold.redBright(error));
        }
    }
}

function shouldRespond(message) {
    // Extract the text content from the message object
    const messageContent = message.content;

    // Conditions for when the bot should not respond
    const noResponseKeywords = ['ignore', 'do not reply', 'stop'];
    const isCommandKill = messageContent.includes('^c');

    // Check if the message content contains keywords signaling the bot should not respond
    const containsNoResponse = noResponseKeywords.some(keyword => messageContent.toLowerCase().includes(keyword));

    // Determine if the bot should respond based on conditions

    // Add more conditions as needed based on personality and surroundings

    return true;
}}