import 'dotenv/config';
import _ from 'lodash';
import { io } from 'socket.io-client';
import { createApiBid, createBidProduct, deleteProfile, shouldUpdateProductTab } from './service/app-service.js';
import browser from './system/browser.js';
import configs from './system/config.js';
import { delay, isTimeReached, safeClosePage } from './system/utils.js';
import pLimit from 'p-limit';

let MANAGER_BIDS = [];

const activeTasks = new Set();

const handleUpdateProductTabs = (data) => {
    if (!Array.isArray(data)) {
        console.log('Data must be array');
        return;
    }

    const managerBidMap = new Map(MANAGER_BIDS.map((bid) => [bid.id, bid]));

    const newDataManager = data.map(({ children, ...web }) => {
        const prevApiBid = managerBidMap.get(web.id);

        const newChildren = children.map((item) => {
            const prevProductTab = prevApiBid?.children.find((i) => i.id === item.id);

            if (prevProductTab) {
                prevProductTab.setNewData(item);

                return prevProductTab;
            }

            return createBidProduct(web, item);
        });

        if (prevApiBid) {
            prevApiBid.setNewData({ children: newChildren, ...web });
            return prevApiBid;
        }

        return createApiBid({ ...web, children: newChildren });
    });

    MANAGER_BIDS = newDataManager;
};

const tracking = async () => {
    console.log('🚀 Tracking process started...');

    while (true) {
        try {
            console.log('🔍 Scanning active bids...');
            const productTabs = _.flatMap(MANAGER_BIDS, 'children');

            // Lắng nghe sự kiện của API bids (chạy song song)
            await Promise.allSettled(
                MANAGER_BIDS.filter((bid) => !bid.page_context).map((apiBid) => {
                    console.log(`🎧 Listening to events for API Bid ID: ${apiBid.id}`);
                    return apiBid.listen_events();
                }),
            );

            Promise.allSettled(
                productTabs.map(async (productTab) => {
                    console.log(`📌 Processing Product ID: ${productTab.id}`);

                    // Xác định parent context
                    if (!productTab.parent_browser_context) {
                        const parent = _.find(MANAGER_BIDS, { id: productTab.web_bid.id });
                        productTab.parent_browser_context = parent?.browser_context;
                        if (!productTab.parent_browser_context) {
                            console.log(`⏳ Waiting for parent process... (Product ID: ${productTab.id})`);
                            return;
                        }
                    }

                    // Kết nối Puppeteer nếu chưa có page_context
                    if (!productTab.page_context) {
                        console.log(`🔌 Connecting to page for Product ID: ${productTab.id}`);
                        await productTab.puppeteer_connect();
                    }

                    // Kiểm tra URL và điều hướng nếu cần
                    if ((await productTab.page_context.url()) !== productTab.url) {
                        console.log(`🔄 Redirecting to new URL for Product ID: ${productTab.id}`);
                        await productTab.gotoLink();
                    }

                    // Cập nhật nếu cần thiết
                    if (shouldUpdateProductTab(productTab)) {
                        console.log(`🔄 Updating Product ID: ${productTab.id}...`);
                        await productTab.update();
                    } else {
                        console.log(`⏳ Product ID: ${productTab.id} was updated recently. Skipping update.`);
                    }

                    // Chờ first bid
                    if (!productTab.first_bid) {
                        console.log(`🎯 Waiting for first bid for Product ID: ${productTab.id}`);
                        return;
                    }

                    // Kiểm tra thời gian bid
                    if (productTab.start_bid_time && !isTimeReached(productTab.start_bid_time)) {
                        console.log(`⏳ Not yet time to bid. Skipping Product ID: ${productTab.id}`);
                        return;
                    }

                    // Thực thi hành động
                    console.log(`🚀 Executing action for Product ID: ${productTab.id}`);
                    await productTab.action();
                }),
            );

            // Dọn dẹp tab không dùng
            console.log('🧹 Cleaning up unused tabs...');
            clearLazyTab();

            // Cập nhật trạng thái tracking
            console.log('📊 Tracking work status...');
            workTracking();
        } catch (error) {
            console.error('❌ Error in tracking loop:', error);
        }

        console.log(`⏳ Waiting ${configs.AUTO_TRACKING_DELAY / 1000} seconds before the next iteration...`);
        await delay(configs.AUTO_TRACKING_DELAY);
    }
};

const clearLazyTab = async () => {
    if (!browser) {
        console.warn('⚠️ Browser is not available or disconnected.');
        return;
    }

    try {
        const pages = await browser.pages();

        // Lấy danh sách URL từ flattenedArray
        const activeUrls = _.flatMap(MANAGER_BIDS, (item) => [item.url, ...item.children.map((child) => child.url)]).filter(Boolean); // Lọc bỏ null hoặc undefined

        console.log(
            '🔍 Page URLs:',
            pages.map((page) => page.url()),
        );

        for (const page of pages) {
            const pageUrl = page.url();

            // 🔥 Bỏ qua tab 'about:blank' hoặc tab không có URL
            if (!pageUrl || pageUrl === 'about:blank') continue;

            if (!activeUrls.includes(pageUrl)) {
                if (!page.isClosed() && browser.isConnected()) {
                    try {
                        await page.close();
                        console.log(`🛑 Closing unused tab: ${pageUrl}`);
                    } catch (err) {
                        console.warn(`⚠️ Error closing tab ${pageUrl}:, err.message`);
                    }
                }
            }
        }
    } catch (err) {
        console.error('❌ Error in clearLazyTab:', err.message);
    }
};

const workTracking = async () => {
    try {
        const activeData = _.flatMap(MANAGER_BIDS, (item) => [item, ...item.children]);
        const limit = pLimit(5);

        await Promise.allSettled(
            activeData
                .filter((item) => item.page_context && !item.page_context.isClosed())
                .filter((item) => !activeTasks.has(item.id))
                .map((item) =>
                    limit(async () => {
                        activeTasks.add(item.id);
                        try {
                            await item.handleTakeWorkSnapshot();
                        } catch (error) {
                            console.error(`[❌ ERROR] Snapshot failed for Product ID: ${item.id}`, error);
                        } finally {
                            activeTasks.delete(item.id);
                        }
                    }),
                ),
        );
    } catch (error) {
        console.error(`[❌ ERROR] Work tracking failed: ${error.message}\n`, error.stack);
    }
};

(async () => {
    const socket = io(configs.SOCKET_URL, {
        transports: ['websocket'],
        reconnection: true,
    });

    // listen connect
    socket.on('connect', () => {
        console.log('✅ Connected to WebSocket server');
        console.log('🔗 Socket ID:', socket.id);
    });

    // listen event
    socket.on('bidsUpdated', async (data) => {
        console.log('📢 Bids Data:', data);

        handleUpdateProductTabs(data);
    });

    socket.on('webUpdated', async (data) => {
        console.log('📢 Account was updated:', data);

        const isDeleted = deleteProfile(data);

        if (isDeleted) {
            console.log('✅ Profile deleted successfully!');

            const tabs = MANAGER_BIDS.filter((item) => item.url === data.url || item?.web_bid.url === data.url);

            if (tabs.length <= 0) return;

            await Promise.all(tabs.map((tab) => safeClosePage(tab)));
        } else {
            console.log('⚠️ No profile found to delete.');
        }
    });

    // AUTO TRACKING
    tracking();
})();