const EventEmitter = require('events');
const { NetworkClient } = require('./Network');
const { FarmManager } = require('./FarmManager');
const { FriendManager } = require('./FriendManager');
const { WarehouseManager } = require('./WarehouseManager');
const { ShopManager } = require('./ShopManager');
const { log, logWarn, emitRuntimeHint } = require('../utils');
const { CONFIG } = require('../config');

class FarmBot extends EventEmitter {
    constructor(config = {}) {
        super();
        // Merge provided config with default CONFIG
        // Deep copy to avoid modifying global CONFIG if passed by reference (though usually it's shallow copy)
        this.config = { ...CONFIG, ...config };
        
        // Initialize components
        this.network = new NetworkClient(this);
        this.farmManager = new FarmManager(this);
        this.friendManager = new FriendManager(this);
        this.warehouseManager = new WarehouseManager(this);
        this.shopManager = new ShopManager(this);
        this.dailyClaimTimer = null;
        
        // State
        this.isRunning = false;
        this.user = {
            gid: 0,
            name: 'Loading...',
            level: 0,
            gold: 0,
            exp: 0,
            tickets: 0,
            fertilizer: 0,
            freeMallClaimDate: ''
        };
        
        // Error handling
        this.network.on('error', (err) => {
            log('机器人', `网络错误: ${err.message}`);
            this.emit('error', err);
        });
        
        this.network.on('disconnected', () => {
            if (this.isRunning) {
                log('机器人', '连接断开，正在尝试重新连接...');
                // Reconnection logic is handled in NetworkClient, but we can monitor it here
            }
        });
    }

    async start() {
        if (this.isRunning) return;
        this.isRunning = true;

        this.log('系统', `正在启动农场小助手... 平台: ${this.config.platform}`);
        emitRuntimeHint(true);

        try {
            // 1. Connect
            this.log('系统', '正在连接服务器...');
            await new Promise((resolve, reject) => {
                const timeout = setTimeout(() => reject(new Error('连接超时')), 10000);
                this.network.connect((success) => {
                    clearTimeout(timeout);
                    if (success) resolve();
                    else reject(new Error('连接失败'));
                });
            });

            // 2. Login
            this.log('系统', '正在登录...');
            await new Promise((resolve, reject) => {
                const timeout = setTimeout(() => reject(new Error('登录超时')), 10000);
                this.network.sendLogin((success) => {
                    clearTimeout(timeout);
                    if (success) resolve();
                    else reject(new Error('登录失败'));
                });
            });

            // 3. Start Loops
            this.log('系统', '开始自动化作业...');
            this.farmManager.startLoop();
            if (this.config.enableFriendOps !== false) {
                this.friendManager.startLoop();
            }
            if (this.config.enableAutoSell !== false) {
                this.warehouseManager.startLoop();
            }
            this.startDailyClaimLoop();
            
            this.emit('started');
            this.log('系统', '农场小助手启动成功！');

        } catch (error) {
            this.log('系统', `启动失败: ${error.message}`);
            this.stop();
            throw error;
        }
    }

    stop() {
        this.isRunning = false;
        this.farmManager.stopLoop();
        this.friendManager.stopLoop();
        this.warehouseManager.stopLoop();
        this.stopDailyClaimLoop();
        
        // Stop network
        if (this.network.ws) {
            this.network.ws.close();
        }
        
        this.emit('stopped');
        log('系统', '农场小助手已停止');
    }

    log(tag, msg) {
        log(tag, msg);
        this.emit('log', { 
            tag, 
            msg, 
            time: Date.now()
        });
    }

    logWarn(tag, msg) {
        logWarn(tag, msg);
        this.emit('log', { 
            tag, 
            msg, 
            type: 'warn', 
            time: Date.now()
        });
    }

    getTodayKey() {
        const now = new Date();
        const y = now.getFullYear();
        const m = `${now.getMonth() + 1}`.padStart(2, '0');
        const d = `${now.getDate()}`.padStart(2, '0');
        return `${y}-${m}-${d}`;
    }

    async runDailyClaims() {
        if (!this.isRunning) return;
        await this.network.tryClaimShareReward(1);
        const todayKey = this.getTodayKey();
        if (this.user.freeMallClaimDate === todayKey) return;
        try {
            await this.shopManager.purchaseMallItem(1001, 1);
            this.user.freeMallClaimDate = todayKey;
            this.emit('userUpdate', this.user);
            this.log('商城', '已领取每日免费礼包');
        } catch (e) {
            this.logWarn('商城', `领取失败: ${e.message}`);
        }
    }

    startDailyClaimLoop() {
        if (this.dailyClaimTimer) return;
        const scheduleNext = () => {
            if (!this.isRunning) return;
            const now = new Date();
            const next = new Date(now);
            next.setHours(24, 0, 0, 0);
            const delay = Math.max(1000, next.getTime() - now.getTime());
            this.dailyClaimTimer = setTimeout(async () => {
                this.dailyClaimTimer = null;
                await this.runDailyClaims();
                scheduleNext();
            }, delay);
        };
        scheduleNext();
    }

    stopDailyClaimLoop() {
        if (this.dailyClaimTimer) {
            clearTimeout(this.dailyClaimTimer);
            this.dailyClaimTimer = null;
        }
    }
}

module.exports = { FarmBot };