// code from goatstore
// api: https://store.agi.bd
const axios = require("axios");

exports.config = {
 name: "quiz",
 version: "2.0",
 author: "—͞𝐏ʀɪᴍᴇ́",
 countDown: 10,
 role: 0,
 shortDescription: "Quiz with category & balance",
 longDescription: "Category quiz, Bangla quiz, and money reward",
 category: "game",
 guide: {
 en: "{pn} - random quiz\n{pn} bangla - bangla quiz\n{pn} science / history / geography / anime / general / sports / computer\nExample: {pn} science"
 }
};

const categoriesMap = {
 general: 9,
 science: 17,
 computer: 18,
 history: 23,
 geography: 22,
 sports: 21,
 anime: 31,
 animals: 27,
 vehicle: 28
};

// Bangla Quiz Local Database
const banglaQuiz = [
 { q: "বাংলাদেশের জাতীয় ফুল কি?", options: ["গোলাপ", "শাপলা", "জবা", "বেলি"], ans: "B" },
 { q: "বাংলাদেশের স্বাধীনতা দিবস কবে?", options: ["১৬ ডিসেম্বর", "২৬ মার্চ", "২১ ফেব্রুয়ারি", "৭ মার্চ"], ans: "B" },
 { q: "পদ্মা সেতুর দৈর্ঘ্য কত?", options: ["৫.৫ কিমি", "৬.১৫ কিমি", "৬.৫ কিমি", "৭ কিমি"], ans: "B" },
 { q: "বাংলা ভাষার প্রথম উপন্যাস কোনটি?", options: ["দুর্গেশনন্দিনী", "আলালের ঘরের দুলাল", "পথের পাঁচালী", "কপালকুণ্ডলা"], ans: "B" },
 { q: "কম্পিউটারের মস্তিষ্ক বলা হয় কোনটিকে?", options: ["RAM", "CPU", "Hard Disk", "Motherboard"], ans: "B" },
 { q: "বাংলাদেশের জাতীয় সংসদ ভবনের স্থপতি কে?", options: ["লুই আই কান", "মাজহারুল ইসলাম", "ফজলুর রহমান খান", "সত্যজিৎ রায়"], ans: "A" },
 { q: "WiFi এর পূর্ণরূপ কি?", options: ["Wireless Fidelity", "Wired Fidelity", "Wireless Function", "Web Fidelity"], ans: "A" },
 { q: "ফেসবুক প্রতিষ্ঠিত হয় কত সালে?", options: ["২০০২", "২০০৪", "২০০৬", "২০০৮"], ans: "B" },
];

function decode(str) {
 try { return decodeURIComponent(str); } catch { return str; }
}

exports.onStart = async function({ api, event, args, message, usersData }) {
 const input = (args[0] || "random").toLowerCase();
 let question, options, correctLetter, correctAnswer;

 // === BANGLA QUIZ ===
 if (input === "bangla" || input === "bn") {
 const random = banglaQuiz[Math.floor(Math.random() * banglaQuiz.length)];
 question = random.q;
 options = random.options;
 correctLetter = random.ans;
 correctAnswer = random.options[["A","B","C","D"].indexOf(random.ans)];

 let optionText = "";
 ["A","B","C","D"].forEach((l, i) => {
 optionText += `${l}. ${options[i]}\n`;
 });

 const body = `❓ বাংলা কুইজ ❓\n━━━━━━━━━━━━━━━━━━━━\n${question}\n━━━━━━━━━━━━━━━━━━━━\n${optionText}\n━━━━━━━━━━━━━━━━━━━━\nReply A/B/C/D\nReward: 100 coins`;

 return message.reply(body, (err, info) => {
 global.GoatBot.onReply.set(info.messageID, {
 commandName: "quiz",
 author: event.senderID,
 correct: correctLetter,
 answer: correctAnswer,
 reward: 100
 });
 });
 }

 // === ENGLISH API QUIZ WITH CATEGORY ===
 let catId = categoriesMap[input] || "";
 let url = `https://opentdb.com/api.php?amount=1&type=multiple&encode=url3986${catId? `&category=${catId}` : ""}`;

 try {
 const res = await axios.get(url, { timeout: 10000 });
 const data = res.data.results[0];
 if (!data) throw new Error("no data");

 question = decode(data.question);
 correctAnswer = decode(data.correct_answer);
 const incorrect = data.incorrect_answers.map(a => decode(a));

 let allOptions = [...incorrect, correctAnswer];
 allOptions.sort(() => Math.random() - 0.5);

 const letters = ["A","B","C","D"];
 let optionText = "";
 allOptions.forEach((opt, i) => {
 optionText += `${letters[i]}. ${opt}\n`;
 if (opt === correctAnswer) correctLetter = letters[i];
 });

 const body = `❓ QUIZ [${input.toUpperCase()}] ❓\n━━━━━━━━━━━━━━━━━━━━\n${question}\n━━━━━━━━━━━━━━━━━━━━\n${optionText}\n━━━━━━━━━━━━━━━━━━━━\nReply A/B/C/D\nReward: 200 coins`;

 return message.reply(body, (err, info) => {
 global.GoatBot.onReply.set(info.messageID, {
 commandName: "quiz",
 author: event.senderID,
 correct: correctLetter,
 answer: correctAnswer,
 reward: 200
 });
 });

 } catch (e) {
 console.log(e);
 return message.reply("❌ Failed to fetch quiz. Try: quiz bangla");
 }
};

exports.onReply = async function({ event, Reply, message, usersData, api }) {
 if (event.senderID!= Reply.author) return;

 const userAns = (event.body || "").trim().toUpperCase();
 if (!["A","B","C","D"].includes(userAns)) {
 return message.reply("Please reply with A, B, C or D.");
 }

 try {
 if (userAns === Reply.correct) {
 // add balance
 if (usersData) {
 await usersData.addMoney(event.senderID, Reply.reward);
 const userInfo = await usersData.get(event.senderID);
 const newBal = userInfo.money || 0;
 message.reply(`✅ Correct! 🎉\nAnswer: ${Reply.answer} (${Reply.correct})\n💰 You got ${Reply.reward} coins!\nNew Balance: ${newBal}`);
 } else {
 message.reply(`✅ Correct! 🎉\nAnswer: ${Reply.answer} (${Reply.correct})\n💰 You got ${Reply.reward} coins!`);
 }
 } else {
 message.reply(`❌ Wrong!\nCorrect was ${Reply.answer} (${Reply.correct})\nBetter luck next time!`);
 }
 } catch (e) {
 console.log(e);
 message.reply(`Result: ${userAns === Reply.correct? "Correct" : "Wrong"}. Answer: ${Reply.answer}`);
 }

 global.GoatBot.onReply.delete(Reply.messageID);
};