const express = require('express');
const cors = require('cors');
const { gotScraping } = require('got-scraping');
const cheerio = require('cheerio');
const axios = require('axios');

const app = express();
const PORT = process.env.PORT || 7860; // Port default Hugging Face

app.use(cors());
app.use(express.json());

// --- Copy & Paste Fungsi Scraping Kamu di Sini ---
const BASE_URL = 'https://04x.manhwaland.land';
const SCRAPER_HEADERS = {
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
    'referer': BASE_URL,
    'accept-language': 'en-US,en;q=0.9,id;q=0.8',
};

async function fetchHtml(url) {
    const response = await gotScraping({
        url,
        headers: SCRAPER_HEADERS,
        retry: { limit: 3, methods: ['GET'] },
        timeout: { request: 10000 }
    });
    return response.body;
}

async function scrapeHome() {
    const html = await fetchHtml(BASE_URL);
    const $ = cheerio.load(html);
    const results = [];
    $('.listupd .bs').each((i, el) => {
        results.push({
            title: $(el).find('.tt').text().trim(),
            url: $(el).find('a').attr('href'),
            image: $(el).find('img').attr('src'),
            type: $(el).find('.type').text().trim(),
            chapter: $(el).find('.epxs').text().trim()
        });
    });
    return results;
}

async function searchManga(query) {
    const url = `${BASE_URL}/?s=${encodeURIComponent(query)}`;
    const html = await fetchHtml(url);
    const $ = cheerio.load(html);
    const results = [];
    $('.listupd .bs').each((i, el) => {
        results.push({
            title: $(el).find('.tt').text().trim(),
            url: $(el).find('a').attr('href'),
            image: $(el).find('img').attr('src'),
            rating: $(el).find('.numscore').text().trim()
        });
    });
    return results;
}

async function scrapeMangaDetail(url) {
    const html = await fetchHtml(url);
    const $ = cheerio.load(html);
    const chapters = [];
    
    $('#chapterlist li').each((i, el) => {
        chapters.push({
            title: $(el).find('.chapternum').text().trim(),
            url: $(el).find('a').attr('href'),
            date: $(el).find('.chapterdate').text().trim()
        });
    });

    return {
        title: $('.entry-title').text().trim(),
        alternative: $('.alternative').text().trim(),
        description: $('.entry-content p').text().trim(),
        cover: $('.thumb img').attr('src'),
        genres: $('.mgen a').map((i, el) => $(el).text()).get(),
        status: $('.imptdt:contains("Status") i').text().trim(),
        author: $('.imptdt:contains("Author") i').text().trim(),
        chapters: chapters.reverse()
    };
}

async function scrapeChapterImages(chapterUrl) {
    try {
        const { data: html } = await axios.get(chapterUrl, {
            headers: {
                'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36'
            }
        });

        // 1. Ambil teks di antara 'ts_reader.run(' dan ');'
        const startMarker = 'ts_reader.run(';
        const endMarker = ');';
        
        const startIndex = html.indexOf(startMarker);
        const endIndex = html.indexOf(endMarker, startIndex);

        if (startIndex === -1 || endIndex === -1) {
            console.log("Gagal menemukan pola ts_reader.run");
            return [];
        }

        // 2. Potong string untuk mendapatkan JSON-nya saja
        const jsonString = html.substring(startIndex + startMarker.length, endIndex);

        // 3. Parse JSON
        const data = JSON.parse(jsonString);

        // 4. Ambil array images dari sources
        // Sesuai source code, data.sources[0].images adalah array URL-nya
        if (data.sources && data.sources.length > 0) {
            return data.sources[0].images;
        }

        return [];
    } catch (error) {
        console.error("Error scraping:", error.message);
        return [];
    }
}

app.get('/home', async (req, res) => {
    try {
        const data = await scrapeHome();
        res.json({ status: 'success', data });
    } catch (err) {
        res.status(500).json({ status: 'error', message: err.message });
    }
});

app.get('/search', async (req, res) => {
    try {
        const { q } = req.query;
        if (!q) return res.status(400).json({ message: 'Query parameter "q" is required' });
        const data = await searchManga(q);
        res.json({ status: 'success', data });
    } catch (err) {
        res.status(500).json({ status: 'error', message: err.message });
    }
});

app.get('/detail', async (req, res) => {
    try {
        const { url } = req.query;
        if (!url) return res.status(400).json({ message: 'URL is required' });
        const data = await scrapeMangaDetail(url);
        res.json({ status: 'success', data });
    } catch (err) {
        res.status(500).json({ status: 'error', message: err.message });
    }
});

app.get('/chapter', async (req, res) => {
    try {
        const { url } = req.query;
        if (!url) return res.status(400).json({ message: 'URL is required' });
        const data = await scrapeChapterImages(url);
        res.json({ status: 'success', data });
    } catch (err) {
        res.status(500).json({ status: 'error', message: err.message });
    }
});

app.listen(PORT, () => {
    console.log(`Server running on port ${PORT}`);
});