const mongoose = require("mongoose");

const bankUserSchema = new mongoose.Schema({
userID: { type: String, required: true, unique: true },
balance: { type: Number, default: 0 }
});
const BankUser = mongoose.models.DiabloBankUser || mongoose.model("DiabloBankUser", bankUserSchema);

module.exports = {
config: {
name: "rebe",
aliases: ["redblack", "rb"],
version: "2.1.0",
author: "DI-ABLO JI-SOO | Edit: Sazzad",
countDown: 14,
role: 0,
shortDescription: "Red Black 2% VIP Winrate",
category: "game",
guide: { en: "{p}rebe [red/black] [amount/2m/all]" }
},

parseAmount: function (str, userBalance) {
if (!str) return null;
str = str.toLowerCase().trim();
if (str === "all") return userBalance;
const match = str.match(/^(\d+(\.\d+)?)\s*([kmb])?$/);
if (!match) return null;
let value = parseFloat(match[1]);
const unit = match[3];
if (unit === "k") value *= 1000;
else if (unit === "m") value *= 1000000;
else if (unit === "b") value *= 1000000000;
return Math.floor(value);
},

formatMoney: function (num) {
if (num >= 1000000) return (num / 1000000000000).toFixed(1).replace(/\.0$/, "") + "ᴛ";
if (num >= 1000000) return (num / 1000000).toFixed(1).replace(/\.0$/, "") + "ʙ";
if (num >= 1000000) return (num / 1000000).toFixed(1).replace(/\.0$/, "") + "ᴍ";
if (num >= 1000) return (num / 1000).toFixed(1).replace(/\.0$/, "") + "ᴋ";
return num.toLocaleString();
},

onStart: async function ({ api, event, args, message }) {
const senderID = event.senderID;
const sendMsg = (txt) => message && typeof message.reply === "function"? message.reply(txt) : api.sendMessage(txt, event.threadID, event.messageID);

try {
let user = await BankUser.findOne({ userID: senderID });
if (!user) user = await BankUser.create({ userID: senderID, balance: 1000 });

const choice = args[0]?.toLowerCase();
if (!choice ||!["red", "black", "r", "b"].includes(choice)) {
return sendMsg("❌ ᴘʟᴇᴀsᴇ ᴄʜᴏᴏsᴇ 'ʀᴇᴅ' ᴏʀ 'ʙʟᴀᴄᴋ'.\nᴇxᴀᴍᴘʟᴇ: #ʀᴇʙᴇ ʀᴇᴅ 5ᴍ");
}

const userChoice = (choice === "red" || choice === "r")? "RED" : "BLACK";
const betAmount = this.parseAmount(args[1], user.balance);
if (betAmount === null || isNaN(betAmount) || betAmount <= 0) {
return sendMsg("❌ ɪɴᴠᴀʟɪᴅ ʙᴇᴛ ᴀᴍᴏᴜɴᴛ!");
}
if (user.balance < betAmount) {
return sendMsg(`❌ ɪɴsᴜғғɪᴄɪᴇɴᴛ ʙᴀʟᴀɴᴄᴇ! ʏᴏᴜ ʜᴀᴠᴇ $${this.formatMoney(user.balance)}.`);
}

// Winrate logic
let winRate = 0.5; // normal 50%
let vipTag = "";
if(user.balance >= 100000000000) { // 100B+
winRate = 0.02; // 2% win chance
vipTag = " 👑 𝗩𝗜𝗣 2%";
}

const resultColor = Math.random() < winRate? userChoice : (userChoice === "RED"? "BLACK" : "RED");
const colorIcon = resultColor === "RED"? "🔴 RED" : "⬛ BLACK";
const isWin = userChoice === resultColor;

let newBalance = user.balance;
let resultMsg = "";
if (isWin) {
newBalance += betAmount;
resultMsg = `🎉 ʙᴀʙʏ, ʏᴏᴜ ᴡᴏɴ $${this.formatMoney(betAmount * 2)}!`;
} else {
newBalance -= betAmount;
resultMsg = `💔 ʙᴀʙʏ, ʏᴏᴜ ʟᴏsᴛ $${this.formatMoney(betAmount)}`;
}

await BankUser.updateOne({ userID: senderID }, { $set: { balance: newBalance } });

const response = `🎡──[ ʀᴇᴅ / ʙʟᴀᴄᴋ ]──🎡${vipTag}\n\n` +
`👤 ʏᴏᴜʀ ʙᴇᴛ: ${userChoice === "RED"? "🔴 RED" : "⬛ BLACK"}\n` +
`🎡 ᴡʜᴇʟ sᴘᴜɴ: ${colorIcon}\n\n` +
`${resultMsg}\n` +
`💰 ɴᴇᴡ ʙᴀʟᴀɴᴄᴇ: $${this.formatMoney(newBalance)}\n` +
`📊 ᴡɪɴʀᴀᴛᴇ: ${winRate*100}%`;

return sendMsg(response);
} catch (err) {
console.error(err);
return sendMsg("❌ ʀᴇᴅʙʟᴀᴄᴋ ɢᴀᴍᴇ ᴇʀᴏʀ!");
}
}
};