#!/usr/bin/env python3
"""
AI Chat App - 后台管理服务
端口: 19021 (与前端同一端口)
"""

from flask import Flask, jsonify, request, send_from_directory, Response
from flask_cors import CORS
import os
import json
import sqlite3
from datetime import datetime
import hashlib
import base64
import asyncio
import edge_tts

app = Flask(__name__, static_folder='../www')
CORS(app)

# 数据库路径
DB_PATH = os.path.join(os.path.dirname(__file__), 'data.db')

# 头像存储目录
AVATAR_DIR = os.path.join(os.path.dirname(__file__), 'avatars')
if not os.path.exists(AVATAR_DIR):
    os.makedirs(AVATAR_DIR)

# 管理员账户（默认）
ADMIN_USERNAME = 'admin'
ADMIN_PASSWORD_HASH = hashlib.sha256('admin123'.encode()).hexdigest()


def get_db():
    """获取数据库连接"""
    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    return conn


def init_db():
    """初始化数据库"""
    conn = get_db()
    cursor = conn.cursor()
    
    # 大模型接口配置表
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS llm_configs (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            name TEXT NOT NULL,
            provider TEXT NOT NULL,
            api_url TEXT NOT NULL,
            api_key TEXT NOT NULL,
            model TEXT NOT NULL,
            max_tokens INTEGER DEFAULT 2048,
            temperature REAL DEFAULT 0.7,
            is_default INTEGER DEFAULT 0,
            is_active INTEGER DEFAULT 1,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    ''')
    
    # 智能体配置表
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS agents (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            agent_id TEXT NOT NULL UNIQUE,
            name TEXT NOT NULL,
            avatar TEXT DEFAULT '🤖',
            category TEXT NOT NULL,
            description TEXT,
            system_prompt TEXT NOT NULL,
            llm_config_id INTEGER,
            temperature REAL DEFAULT 0.7,
            max_tokens INTEGER DEFAULT 2048,
            enable_tools TEXT,
            tags TEXT,
            heat INTEGER DEFAULT 0,
            is_online INTEGER DEFAULT 1,
            is_active INTEGER DEFAULT 1,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            FOREIGN KEY (llm_config_id) REFERENCES llm_configs(id)
        )
    ''')
    
    # 搜索配置表（改为工具配置）
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS tool_configs (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            tool_id TEXT NOT NULL UNIQUE,
            name TEXT NOT NULL,
            type TEXT NOT NULL,
            provider TEXT NOT NULL,
            api_url TEXT NOT NULL,
            api_key TEXT,
            config_json TEXT,
            max_results INTEGER DEFAULT 10,
            is_default INTEGER DEFAULT 0,
            is_active INTEGER DEFAULT 1,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    ''')
    
    # 对话配置表
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS chat_configs (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            config_id TEXT NOT NULL UNIQUE,
            name TEXT NOT NULL,
            llm_config_id INTEGER,
            enable_search INTEGER DEFAULT 1,
            enable_tools TEXT,
            max_history INTEGER DEFAULT 20,
            temperature REAL DEFAULT 0.7,
            system_prompt TEXT,
            is_default INTEGER DEFAULT 1,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            FOREIGN KEY (llm_config_id) REFERENCES llm_configs(id)
        )
    ''')
    
    # 系统配置表
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS system_configs (
            key TEXT PRIMARY KEY,
            value TEXT,
            description TEXT,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    ''')
    
    # 统计日志表
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS stats_logs (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            log_type TEXT NOT NULL,
            log_key TEXT NOT NULL,
            log_value INTEGER DEFAULT 1,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    ''')
    
    # 用户表（后台管理）
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS admin_users (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            username TEXT NOT NULL UNIQUE,
            password_hash TEXT NOT NULL,
            role TEXT DEFAULT 'admin',
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    ''')
    
    # 用户表（前端注册用户）
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS users (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            username TEXT NOT NULL UNIQUE,
            password_hash TEXT NOT NULL,
            phone TEXT NOT NULL UNIQUE,
            email TEXT,
            avatar TEXT DEFAULT '👤',
            signature TEXT,
            gender TEXT,
            age INTEGER,
            region TEXT,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            last_login_at TIMESTAMP
        )
    ''')
    
    # 用户智能体配置表（我的智能体）
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS user_agents (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            user_id INTEGER NOT NULL,
            agent_id TEXT NOT NULL,
            category TEXT NOT NULL,
            is_pinned INTEGER DEFAULT 0,
            is_favorite INTEGER DEFAULT 0,
            added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            FOREIGN KEY (user_id) REFERENCES users(id),
            UNIQUE(user_id, agent_id)
        )
    ''')
    
    # 对话表（用户对话数据）
    cursor.execute('''
        CREATE TABLE IF NOT EXISTS conversations (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            user_id INTEGER NOT NULL,
            title TEXT NOT NULL,
            agent_id TEXT,
            messages TEXT NOT NULL DEFAULT '[]',
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            FOREIGN KEY (user_id) REFERENCES users(id)
        )
    ''')
    
    # 初始化默认大模型配置
    cursor.execute('SELECT COUNT(*) FROM llm_configs')
    if cursor.fetchone()[0] == 0:
        cursor.execute('''
            INSERT INTO llm_configs (name, provider, api_url, api_key, model, is_default)
            VALUES ('智谱GLM', 'zhipu', 'https://open.bigmodel.cn/api/paas/v4/chat/completions', 
                    '2259e33a1357460abe17919aaf81e73d.K44a8LPQTmFM5PKm', 'glm-4.5-air', 1)
        ''')
    
    # 初始化默认工具配置（搜索工具）
    cursor.execute('SELECT COUNT(*) FROM tool_configs')
    if cursor.fetchone()[0] == 0:
        cursor.execute('''
            INSERT INTO tool_configs (tool_id, name, type, provider, api_url, api_key, max_results, is_default)
            VALUES ('search', '联网搜索', 'search', 'tavily', 'https://api.tavily.com/search', 
                    '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', 10, 1)
        ''')
    
    # 初始化默认对话配置
    cursor.execute('SELECT COUNT(*) FROM chat_configs')
    if cursor.fetchone()[0] == 0:
        cursor.execute('''
            INSERT INTO chat_configs (config_id, name, llm_config_id, enable_tools, is_default)
            VALUES ('default', '默认对话配置', 1, 'search', 1)
        ''')
    
    # 初始化默认智能体
    cursor.execute('SELECT COUNT(*) FROM agents')
    if cursor.fetchone()[0] == 0:
        default_agents = [
            # 基础类别
            ('assistant', '通用助手', '🤖', 'basic', '能回答各类问题，帮助写作、分析、解答疑惑', '你是一个智能助手，能够回答各类问题，帮助用户解决问题。', 'hot', 9500),
            ('writer', '写作助手', '✍️', 'basic', '专注于文章写作、文案创作、内容润色', '你是一个专业的写作助手，擅长各类文章写作、文案创作和内容润色。', 'hot', 8800),
            ('coder', '编程助手', '👨‍💻', 'basic', '精通编程语言，解答技术问题，生成代码', '你是一个专业的编程助手，精通各类编程语言，能够解答技术问题并生成高质量代码。', 'hot', 8500),
            ('translator', '翻译助手', '🌐', 'basic', '多语言翻译，精准表达，文化适配', '你是一个专业的翻译助手，精通多语言翻译，能够精准表达并适配文化差异。', 'hot', 7200),
            # 工作类别
            ('work', '工作助手', '💼', 'work', '职场问题解答，工作效率提升', '你是一个工作助手，帮助解决职场问题，提升工作效率。', 'popular', 5000),
            ('ppt', 'PPT助手', '📊', 'work', 'PPT内容生成，结构优化，设计建议', '你是一个PPT助手，擅长PPT内容生成、结构优化和设计建议。', 'popular', 4500),
            ('excel', 'Excel助手', '📈', 'work', 'Excel公式、数据分析、表格优化', '你是一个Excel助手，精通Excel公式、数据分析和表格优化。', '', 4000),
            # 学习类别
            ('teacher', '学习助手', '📚', 'study', '知识讲解，学习方法，考试辅导', '你是一个学习助手，擅长知识讲解、学习方法指导和考试辅导。', 'popular', 5500),
            ('english', '英语助手', '🔤', 'study', '英语学习，语法纠正，口语练习', '你是一个英语助手，帮助英语学习、语法纠正和口语练习。', '', 5000),
            ('math', '数学助手', '🔢', 'study', '数学解题，公式推导，概念讲解', '你是一个数学助手，擅长数学解题、公式推导和概念讲解。', '', 4500),
            # 生活类别
            ('health', '健康助手', '🏥', 'life', '健康咨询，养生建议，运动指导', '你是一个健康助手，提供健康咨询、养生建议和运动指导。', '', 3500),
            ('travel', '旅行助手', '✈️', 'life', '旅行规划，景点推荐，美食指南', '你是一个旅行助手，擅长旅行规划、景点推荐和美食指南。', 'popular', 3200),
            ('food', '美食助手', '🍳', 'life', '菜谱推荐，烹饪技巧，营养搭配', '你是一个美食助手，提供菜谱推荐、烹饪技巧和营养搭配建议。', '', 3000),
        ]
        for agent in default_agents:
            cursor.execute('''
                INSERT INTO agents (agent_id, name, avatar, category, description, system_prompt, tags, heat, is_online)
                VALUES (?, ?, ?, ?, ?, ?, ?, ?, 1)
            ''', agent)
    
    # 初始化系统配置
    cursor.execute('SELECT COUNT(*) FROM system_configs')
    if cursor.fetchone()[0] == 0:
        default_configs = [
            ('app_name', 'AI助手', '应用名称'),
            ('app_version', '3.10.0', '应用版本'),
            ('llm_provider', 'zhipu', '默认大模型提供商'),
            ('enable_search', 'true', '是否启用联网搜索'),
            ('guest_chat_sessions', '1', '游客每日对话会话限制'),
            ('guest_chat_messages', '20', '游客每日对话消息限制'),
            ('guest_agent_messages', '20', '游客每日智能体消息限制'),
            ('admin_password', 'admin123', '管理员密码'),
            ('app_developer', 'OpenClaw Team', '开发者'),
            ('app_update_date', '2026-04-27', '更新日期'),
            ('app_technology', '智谱 GLM-4.5-Air 大模型', '技术基础'),
            ('app_description', '提供智能对话、多种智能体服务', '应用简介'),
            ('privacy_policy_url', '', '隐私政策链接'),
            ('user_agreement_url', '', '用户协议链接'),
            ('tts_provider', 'edge', 'TTS方案'),
            ('tts_voice', 'zh-CN-XiaoxiaoNeural', 'TTS语音'),
        ]
        for key, value, desc in default_configs:
            cursor.execute('INSERT INTO system_configs (key, value, description) VALUES (?, ?, ?)', (key, value, desc))
    else:
        # 检查并添加缺失的配置项（兼容旧数据库）
        default_configs = [
            ('app_developer', 'OpenClaw Team', '开发者'),
            ('app_update_date', '2026-04-27', '更新日期'),
            ('app_technology', '智谱 GLM-4.5-Air 大模型', '技术基础'),
            ('app_description', '提供智能对话、多种智能体服务', '应用简介'),
            ('privacy_policy_url', '', '隐私政策链接'),
            ('user_agreement_url', '', '用户协议链接'),
            ('tts_provider', 'edge', 'TTS方案'),
            ('tts_voice', 'zh-CN-XiaoxiaoNeural', 'TTS语音'),
        ]
        for key, value, desc in default_configs:
            cursor.execute('SELECT COUNT(*) FROM system_configs WHERE key=?', (key,))
            if cursor.fetchone()[0] == 0:
                cursor.execute('INSERT INTO system_configs (key, value, description) VALUES (?, ?, ?)', (key, value, desc))
    
    # 初始化管理员账户
    cursor.execute('SELECT COUNT(*) FROM admin_users')
    if cursor.fetchone()[0] == 0:
        cursor.execute('INSERT INTO admin_users (username, password_hash) VALUES (?, ?)', 
                       (ADMIN_USERNAME, ADMIN_PASSWORD_HASH))
    
    conn.commit()
    conn.close()


# ==================== 前端静态文件服务 ====================

@app.route('/')
def index():
    """前端首页"""
    return send_from_directory(app.static_folder, 'index.html')


@app.route('/admin')
def admin():
    """后台管理页面"""
    return send_from_directory(app.static_folder, 'admin.html')


@app.route('/admin/<path:path>')
def admin_static(path):
    """后台管理静态文件"""
    return send_from_directory(app.static_folder, path)


@app.route('/<path:path>')
def static_files(path):
    """前端静态文件"""
    return send_from_directory(app.static_folder, path)


# ==================== 后台管理 API ====================

# 管理员登录验证
def check_admin_auth():
    """检查管理员权限"""
    auth = request.authorization
    if not auth:
        return False
    password_hash = hashlib.sha256(auth.password.encode()).hexdigest()
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM admin_users WHERE username = ? AND password_hash = ?', 
                   (auth.username, password_hash))
    user = cursor.fetchone()
    conn.close()
    return user is not None


@app.route('/api/admin/login', methods=['POST'])
def admin_login():
    """管理员登录"""
    data = request.json
    username = data.get('username')
    password = data.get('password')
    
    if not username or not password:
        return jsonify({'error': '请输入用户名和密码'}), 400
    
    password_hash = hashlib.sha256(password.encode()).hexdigest()
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM admin_users WHERE username = ? AND password_hash = ?', 
                   (username, password_hash))
    user = cursor.fetchone()
    conn.close()
    
    if user:
        return jsonify({'success': True, 'message': '登录成功'})
    else:
        return jsonify({'error': '用户名或密码错误'}), 401


# ==================== 用户管理 ====================

@app.route('/api/register', methods=['POST'])
def user_register():
    """用户注册"""
    data = request.json
    username = data.get('username')
    password = data.get('password')
    phone = data.get('phone')
    email = data.get('email')
    code = data.get('code')  # 验证码（暂时只校验格式）
    
    # 参数验证
    if not username or not password or not phone:
        return jsonify({'error': '请填写完整信息'}), 400
    
    # 用户名长度检查
    if len(username) < 2 or len(username) > 20:
        return jsonify({'error': '用户名长度应为2-20字符'}), 400
    
    # 手机号格式检查
    import re
    if not re.match(r'^1[3-9]\d{9}$', phone):
        return jsonify({'error': '手机号格式不正确'}), 400
    
    # 验证码检查（模拟，6位数字）
    if not code or not re.match(r'^\d{6}$', code):
        return jsonify({'error': '验证码格式不正确'}), 400
    
    # 邮箱格式检查（可选）
    if email and not re.match(r'^[^\s@]+@[^\s@]+\.[^\s@]+$', email):
        return jsonify({'error': '邮箱格式不正确'}), 400
    
    conn = get_db()
    cursor = conn.cursor()
    
    # 检查用户名是否已存在
    cursor.execute('SELECT id FROM users WHERE username = ?', (username,))
    if cursor.fetchone():
        conn.close()
        return jsonify({'error': '用户名已存在'}), 400
    
    # 检查手机号是否已存在
    cursor.execute('SELECT id FROM users WHERE phone = ?', (phone,))
    if cursor.fetchone():
        conn.close()
        return jsonify({'error': '手机号已注册'}), 400
    
    # 创建用户
    password_hash = hashlib.sha256(password.encode()).hexdigest()
    cursor.execute('''
        INSERT INTO users (username, password_hash, phone, email)
        VALUES (?, ?, ?, ?)
    ''', (username, password_hash, phone, email))
    
    # 记录注册统计
    cursor.execute('INSERT INTO stats_logs (log_type, log_key) VALUES (?, ?)', ('user_register', 'new'))
    
    conn.commit()
    user_id = cursor.lastrowid
    conn.close()
    
    return jsonify({'success': True, 'user_id': user_id})


@app.route('/api/login', methods=['POST'])
def user_login():
    """用户登录"""
    data = request.json
    username = data.get('username')
    password = data.get('password')
    
    if not username or not password:
        return jsonify({'error': '请输入用户名和密码'}), 400
    
    password_hash = hashlib.sha256(password.encode()).hexdigest()
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM users WHERE username = ? AND password_hash = ?', (username, password_hash))
    user = cursor.fetchone()
    
    if user:
        # 更新最后登录时间
        cursor.execute('UPDATE users SET last_login_at = CURRENT_TIMESTAMP WHERE id = ?', (user['id'],))
        conn.commit()
        conn.close()
        return jsonify({
            'success': True,
            'user': {
                'id': user['id'],
                'username': user['username'],
                'phone': user['phone'],
                'email': user['email'],
                'avatar': user['avatar'],
                'signature': user['signature'],
                'gender': user['gender'],
                'age': user['age'],
                'region': user['region']
            }
        })
    else:
        conn.close()
        return jsonify({'error': '用户名或密码错误'}), 401


@app.route('/api/admin/users', methods=['GET'])
def get_users():
    """获取用户列表"""
    conn = get_db()
    cursor = conn.cursor()
    
    # 支持搜索
    search = request.args.get('search', '')
    if search:
        cursor.execute('''
            SELECT id, username, phone, email, avatar, signature, gender, age, region, 
            created_at, last_login_at FROM users 
            WHERE username LIKE ? OR phone LIKE ? OR email LIKE ?
            ORDER BY created_at DESC
        ''', (f'%{search}%', f'%{search}%', f'%{search}%'))
    else:
        cursor.execute('''
            SELECT id, username, phone, email, avatar, signature, gender, age, region, 
            created_at, last_login_at FROM users ORDER BY created_at DESC
        ''')
    
    users = [dict(row) for row in cursor.fetchall()]
    conn.close()
    return jsonify(users)


@app.route('/api/admin/users/<int:id>', methods=['GET'])
@app.route('/api/user/<int:id>', methods=['GET'])
def get_user(id):
    """获取单个用户信息"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM users WHERE id = ?', (id,))
    user = cursor.fetchone()
    conn.close()
    
    if user:
        return jsonify(dict(user))
    else:
        return jsonify({'error': '用户不存在'}), 404


@app.route('/api/admin/users/<int:id>', methods=['PUT'])
def update_user(id):
    """更新用户信息"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    
    # 检查用户是否存在
    cursor.execute('SELECT id FROM users WHERE id = ?', (id,))
    if not cursor.fetchone():
        conn.close()
        return jsonify({'error': '用户不存在'}), 404
    
    # 检查用户名是否重复（如果要修改用户名）
    if data.get('username'):
        cursor.execute('SELECT id FROM users WHERE username = ? AND id != ?', (data['username'], id))
        if cursor.fetchone():
            conn.close()
            return jsonify({'error': '用户名已存在'}), 400
    
    # 更新用户信息
    cursor.execute('''
        UPDATE users SET username=?, email=?, avatar=?, signature=?, gender=?, age=?, region=?, 
        updated_at=CURRENT_TIMESTAMP WHERE id=?
    ''', (data.get('username'), data.get('email'), data.get('avatar', '👤'), 
          data.get('signature'), data.get('gender'), data.get('age'), 
          data.get('region'), id))
    
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/users/<int:id>', methods=['DELETE'])
def delete_user(id):
    """删除用户"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('DELETE FROM users WHERE id = ?', (id,))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/users/<int:id>/password', methods=['PUT'])
def reset_user_password(id):
    """重置用户密码"""
    data = request.json
    new_password = data.get('password')
    
    if not new_password or len(new_password) < 6:
        return jsonify({'error': '密码长度至少6位'}), 400
    
    password_hash = hashlib.sha256(new_password.encode()).hexdigest()
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('UPDATE users SET password_hash=?, updated_at=CURRENT_TIMESTAMP WHERE id=?', 
                   (password_hash, id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/user/<int:id>', methods=['PUT'])
def update_user_profile(id):
    """用户更新自己的资料"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    
    # 检查用户是否存在
    cursor.execute('SELECT id FROM users WHERE id = ?', (id,))
    if not cursor.fetchone():
        conn.close()
        return jsonify({'error': '用户不存在'}), 404
    
    # 更新用户资料
    cursor.execute('''
        UPDATE users SET avatar=?, signature=?, gender=?, age=?, region=?, email=?, 
        updated_at=CURRENT_TIMESTAMP WHERE id=?
    ''', (data.get('avatar', '👤'), data.get('signature'), data.get('gender'), 
          data.get('age'), data.get('region'), data.get('email'), id))
    
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/user/<int:id>/password', methods=['PUT'])
def change_user_password(id):
    """用户修改自己的密码"""
    data = request.json
    old_password = data.get('old_password')
    new_password = data.get('new_password')
    
    if not old_password or not new_password:
        return jsonify({'error': '请输入旧密码和新密码'}), 400
    
    if len(new_password) < 6:
        return jsonify({'error': '新密码长度至少6位'}), 400
    
    old_hash = hashlib.sha256(old_password.encode()).hexdigest()
    new_hash = hashlib.sha256(new_password.encode()).hexdigest()
    
    conn = get_db()
    cursor = conn.cursor()
    
    # 验证旧密码
    cursor.execute('SELECT id FROM users WHERE id = ? AND password_hash = ?', (id, old_hash))
    if not cursor.fetchone():
        conn.close()
        return jsonify({'error': '旧密码不正确'}), 400
    
    # 更新密码
    cursor.execute('UPDATE users SET password_hash=?, updated_at=CURRENT_TIMESTAMP WHERE id=?', 
                   (new_hash, id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 用户头像上传 ====================

@app.route('/api/user/<int:user_id>/avatar', methods=['POST'])
def upload_user_avatar(user_id):
    """上传用户头像"""
    data = request.json
    avatar_data = data.get('avatar')  # base64 格式图片
    
    if not avatar_data:
        return jsonify({'error': '头像数据不能为空'}), 400
    
    # 解析 base64 数据
    try:
        # 支持两种格式：
        # 1. data:image/png;base64,xxxxx
        # 2. 纯 base64 字符串
        
        if avatar_data.startswith('data:'):
            # 提取格式和内容
            header, content = avatar_data.split(',', 1)
            # 提取图片格式
            mime_type = header.split(':')[1].split(';')[0]
            ext = mime_type.split('/')[1] if '/' in mime_type else 'png'
        else:
            content = avatar_data
            ext = 'png'
        
        # 解码 base64
        image_bytes = base64.b64decode(content)
        
        # 验证图片大小（最大 2MB）
        if len(image_bytes) > 2 * 1024 * 1024:
            return jsonify({'error': '头像大小不能超过2MB'}), 400
        
        # 生成文件名
        filename = f'user_{user_id}_{int(datetime.now().timestamp())}.{ext}'
        filepath = os.path.join(AVATAR_DIR, filename)
        
        # 保存文件
        with open(filepath, 'wb') as f:
            f.write(image_bytes)
        
        # 更新数据库（存储文件名）
        conn = get_db()
        cursor = conn.cursor()
        cursor.execute('UPDATE users SET avatar=?, updated_at=CURRENT_TIMESTAMP WHERE id=?',
                       (filename, user_id))
        conn.commit()
        conn.close()
        
        return jsonify({'success': True, 'avatar': filename, 'avatar_url': f'/api/avatars/{filename}'})
    
    except Exception as e:
        return jsonify({'error': f'头像上传失败: {str(e)}'}), 500


@app.route('/api/avatars/<filename>', methods=['GET'])
def get_avatar(filename):
    """获取头像图片"""
    return send_from_directory(AVATAR_DIR, filename)


@app.route('/api/admin/users/<int:user_id>/avatar', methods=['POST'])
def admin_upload_user_avatar(user_id):
    """管理员上传用户头像"""
    return upload_user_avatar(user_id)


# ==================== 用户对话数据同步 ====================

@app.route('/api/user/<int:user_id>/conversations', methods=['GET'])
def get_user_conversations(user_id):
    """获取用户所有对话"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        SELECT id, title, agent_id, messages, created_at, updated_at 
        FROM conversations WHERE user_id = ? ORDER BY updated_at DESC
    ''', (user_id,))
    
    conversations = []
    for row in cursor.fetchall():
        conv = dict(row)
        # 解析消息JSON
        try:
            conv['messages'] = json.loads(conv['messages']) if conv['messages'] else []
        except:
            conv['messages'] = []
        # 转换为前端格式（使用字符串ID）
        conv['id'] = str(conv['id'])
        conv['createdAt'] = int(datetime.strptime(conv['created_at'], '%Y-%m-%d %H:%M:%S').timestamp() * 1000) if conv['created_at'] else 0
        conv['updatedAt'] = int(datetime.strptime(conv['updated_at'], '%Y-%m-%d %H:%M:%S').timestamp() * 1000) if conv['updated_at'] else 0
        conv['agentId'] = conv['agent_id']
        conversations.append(conv)
    
    conn.close()
    return jsonify(conversations)


@app.route('/api/user/<int:user_id>/conversations/<int:conv_id>', methods=['GET'])
def get_user_conversation_detail(user_id, conv_id):
    """获取单个对话详情"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        SELECT id, title, agent_id, messages, created_at, updated_at 
        FROM conversations WHERE id = ? AND user_id = ?
    ''', (conv_id, user_id))
    
    row = cursor.fetchone()
    conn.close()
    
    if not row:
        return jsonify({'error': '对话不存在'}), 404
    
    conv = dict(row)
    try:
        conv['messages'] = json.loads(conv['messages']) if conv['messages'] else []
    except:
        conv['messages'] = []
    
    conv['id'] = str(conv['id'])
    conv['createdAt'] = int(datetime.strptime(conv['created_at'], '%Y-%m-%d %H:%M:%S').timestamp() * 1000) if conv['created_at'] else 0
    conv['updatedAt'] = int(datetime.strptime(conv['updated_at'], '%Y-%m-%d %H:%M:%S').timestamp() * 1000) if conv['updated_at'] else 0
    conv['agentId'] = conv['agent_id']
    
    return jsonify(conv)


@app.route('/api/user/<int:user_id>/conversations', methods=['POST'])
def create_user_conversation(user_id):
    """创建新对话"""
    data = request.json
    title = data.get('title', '新对话')
    agent_id = data.get('agentId') or data.get('agent_id')
    messages = data.get('messages', [])
    
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        INSERT INTO conversations (user_id, title, agent_id, messages)
        VALUES (?, ?, ?, ?)
    ''', (user_id, title, agent_id, json.dumps(messages)))
    conn.commit()
    
    conv_id = cursor.lastrowid
    conn.close()
    
    return jsonify({'success': True, 'id': str(conv_id)})


@app.route('/api/user/<int:user_id>/conversations/<int:conv_id>', methods=['PUT'])
def update_user_conversation(user_id, conv_id):
    """更新对话（添加消息、修改标题等）"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    
    # 验证对话属于该用户
    cursor.execute('SELECT id FROM conversations WHERE id = ? AND user_id = ?', (conv_id, user_id))
    if not cursor.fetchone():
        conn.close()
        return jsonify({'error': '对话不存在'}), 404
    
    # 更新字段
    updates = []
    values = []
    
    if 'title' in data:
        updates.append('title = ?')
        values.append(data['title'])
    
    if 'messages' in data:
        updates.append('messages = ?')
        values.append(json.dumps(data['messages']))
    
    if 'agentId' in data or 'agent_id' in data:
        updates.append('agent_id = ?')
        values.append(data.get('agentId') or data.get('agent_id'))
    
    if updates:
        updates.append('updated_at = CURRENT_TIMESTAMP')
        sql = f'UPDATE conversations SET {", ".join(updates)} WHERE id = ?'
        values.append(conv_id)
        cursor.execute(sql, values)
        conn.commit()
    
    conn.close()
    return jsonify({'success': True})


@app.route('/api/user/<int:user_id>/conversations/<int:conv_id>', methods=['DELETE'])
def delete_user_conversation(user_id, conv_id):
    """删除对话"""
    conn = get_db()
    cursor = conn.cursor()
    
    # 验证对话属于该用户
    cursor.execute('SELECT id FROM conversations WHERE id = ? AND user_id = ?', (conv_id, user_id))
    if not cursor.fetchone():
        conn.close()
        return jsonify({'error': '对话不存在'}), 404
    
    cursor.execute('DELETE FROM conversations WHERE id = ?', (conv_id,))
    conn.commit()
    conn.close()
    
    return jsonify({'success': True})


# ==================== 用户智能体数据同步 ====================

@app.route('/api/user/<int:user_id>/agents', methods=['GET'])
def get_user_agents(user_id):
    """获取用户智能体配置"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        SELECT agent_id, category, is_pinned, is_favorite, added_at 
        FROM user_agents WHERE user_id = ?
    ''', (user_id,))
    
    agents_data = {
        'myAgents': {},  # {category: [agent_ids]}
        'favoriteAgents': [],  # [agent_ids]
        'pinnedAgents': {}  # {category: [agent_ids]}
    }
    
    for row in cursor.fetchall():
        agent_id = row['agent_id']
        category = row['category']
        is_pinned = row['is_pinned']
        is_favorite = row['is_favorite']
        
        # 添加到 myAgents
        if category not in agents_data['myAgents']:
            agents_data['myAgents'][category] = []
        agents_data['myAgents'][category].append(agent_id)
        
        # 添加到 pinnedAgents
        if is_pinned:
            if category not in agents_data['pinnedAgents']:
                agents_data['pinnedAgents'][category] = []
            agents_data['pinnedAgents'][category].append(agent_id)
        
        # 添加到 favoriteAgents
        if is_favorite:
            agents_data['favoriteAgents'].append(agent_id)
    
    conn.close()
    return jsonify(agents_data)


@app.route('/api/user/<int:user_id>/agents/<agent_id>', methods=['POST'])
def add_user_agent(user_id, agent_id):
    """添加智能体到用户列表"""
    data = request.json
    category = data.get('category', 'basic')
    is_pinned = data.get('is_pinned', 0)
    is_favorite = data.get('is_favorite', 0)
    
    conn = get_db()
    cursor = conn.cursor()
    
    try:
        cursor.execute('''
            INSERT INTO user_agents (user_id, agent_id, category, is_pinned, is_favorite)
            VALUES (?, ?, ?, ?, ?)
        ''', (user_id, agent_id, category, is_pinned, is_favorite))
        conn.commit()
        conn.close()
        return jsonify({'success': True})
    except:
        # 已存在，更新
        cursor.execute('''
            UPDATE user_agents SET category=?, is_pinned=?, is_favorite=? 
            WHERE user_id=? AND agent_id=?
        ''', (category, is_pinned, is_favorite, user_id, agent_id))
        conn.commit()
        conn.close()
        return jsonify({'success': True})


@app.route('/api/user/<int:user_id>/agents/<agent_id>', methods=['DELETE'])
def remove_user_agent(user_id, agent_id):
    """从用户列表移除智能体"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('DELETE FROM user_agents WHERE user_id=? AND agent_id=?', (user_id, agent_id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/user/<int:user_id>/agents/<agent_id>/pin', methods=['POST'])
def toggle_user_agent_pin(user_id, agent_id):
    """切换智能体置顶状态"""
    data = request.json
    is_pinned = data.get('is_pinned', 1)
    category = data.get('category', 'basic')
    
    conn = get_db()
    cursor = conn.cursor()
    
    # 检查是否存在
    cursor.execute('SELECT id FROM user_agents WHERE user_id=? AND agent_id=?', (user_id, agent_id))
    if cursor.fetchone():
        cursor.execute('UPDATE user_agents SET is_pinned=? WHERE user_id=? AND agent_id=?', 
                       (is_pinned, user_id, agent_id))
    else:
        cursor.execute('INSERT INTO user_agents (user_id, agent_id, category, is_pinned) VALUES (?, ?, ?, ?)',
                       (user_id, agent_id, category, is_pinned))
    
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/user/<int:user_id>/agents/<agent_id>/favorite', methods=['POST'])
def toggle_user_agent_favorite(user_id, agent_id):
    """切换智能体收藏状态"""
    data = request.json
    is_favorite = data.get('is_favorite', 1)
    category = data.get('category', 'basic')
    
    conn = get_db()
    cursor = conn.cursor()
    
    # 检查是否存在
    cursor.execute('SELECT id FROM user_agents WHERE user_id=? AND agent_id=?', (user_id, agent_id))
    if cursor.fetchone():
        cursor.execute('UPDATE user_agents SET is_favorite=? WHERE user_id=? AND agent_id=?', 
                       (is_favorite, user_id, agent_id))
    else:
        cursor.execute('INSERT INTO user_agents (user_id, agent_id, category, is_favorite) VALUES (?, ?, ?, ?)',
                       (user_id, agent_id, category, is_favorite))
    
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 大模型接口管理 ====================

@app.route('/api/admin/llm', methods=['GET'])
def get_llm_configs():
    """获取所有大模型配置"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM llm_configs ORDER BY is_default DESC, created_at DESC')
    configs = [dict(row) for row in cursor.fetchall()]
    conn.close()
    return jsonify(configs)


@app.route('/api/admin/llm', methods=['POST'])
def add_llm_config():
    """添加大模型配置"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        INSERT INTO llm_configs (name, provider, api_url, api_key, model, max_tokens, temperature)
        VALUES (?, ?, ?, ?, ?, ?, ?)
    ''', (data['name'], data['provider'], data['api_url'], data['api_key'], 
          data['model'], data.get('max_tokens', 2048), data.get('temperature', 0.7)))
    conn.commit()
    config_id = cursor.lastrowid
    conn.close()
    return jsonify({'success': True, 'id': config_id})


@app.route('/api/admin/llm/<int:id>', methods=['PUT'])
def update_llm_config(id):
    """更新大模型配置"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        UPDATE llm_configs SET name=?, provider=?, api_url=?, api_key=?, model=?, 
        max_tokens=?, temperature=?, updated_at=CURRENT_TIMESTAMP WHERE id=?
    ''', (data['name'], data['provider'], data['api_url'], data['api_key'], 
          data['model'], data.get('max_tokens', 2048), data.get('temperature', 0.7), id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/llm/<int:id>', methods=['DELETE'])
def delete_llm_config(id):
    """删除大模型配置"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('DELETE FROM llm_configs WHERE id=?', (id,))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/llm/<int:id>/default', methods=['POST'])
def set_default_llm(id):
    """设置默认大模型"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('UPDATE llm_configs SET is_default=0')
    cursor.execute('UPDATE llm_configs SET is_default=1 WHERE id=?', (id,))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 智能体管理 ====================

@app.route('/api/admin/agents', methods=['GET'])
def get_agents():
    """获取所有智能体"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM agents ORDER BY category, heat DESC')
    agents = [dict(row) for row in cursor.fetchall()]
    conn.close()
    return jsonify(agents)


@app.route('/api/admin/agents', methods=['POST'])
def add_agent():
    """添加智能体"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        INSERT INTO agents (agent_id, name, avatar, category, description, system_prompt, 
        llm_config_id, temperature, max_tokens, enable_tools, tags, heat, is_online)
        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
    ''', (data['agent_id'], data['name'], data.get('avatar', '🤖'), data['category'], 
          data.get('description', ''), data['system_prompt'], data.get('llm_config_id'),
          data.get('temperature', 0.7), data.get('max_tokens', 2048), 
          data.get('enable_tools', ''), data.get('tags', ''), data.get('heat', 0),
          data.get('is_online', 1)))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/agents/<agent_id>', methods=['PUT'])
def update_agent(agent_id):
    """更新智能体"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        UPDATE agents SET name=?, avatar=?, category=?, description=?, system_prompt=?, 
        llm_config_id=?, temperature=?, max_tokens=?, enable_tools=?, tags=?, heat=?, is_online=?,
        updated_at=CURRENT_TIMESTAMP WHERE agent_id=?
    ''', (data['name'], data.get('avatar', '🤖'), data['category'], 
          data.get('description', ''), data['system_prompt'], data.get('llm_config_id'),
          data.get('temperature', 0.7), data.get('max_tokens', 2048), 
          data.get('enable_tools', ''), data.get('tags', ''), data.get('heat', 0),
          data.get('is_online', 1), agent_id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/agents/<agent_id>', methods=['DELETE'])
def delete_agent(agent_id):
    """删除智能体"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('DELETE FROM agents WHERE agent_id=?', (agent_id,))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/agents/<agent_id>/online', methods=['POST'])
def toggle_agent_online(agent_id):
    """切换智能体上线状态"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('UPDATE agents SET is_online=?, updated_at=CURRENT_TIMESTAMP WHERE agent_id=?',
                   (data.get('is_online', 1), agent_id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 对话配置管理 ====================

@app.route('/api/admin/chat', methods=['GET'])
def get_chat_config():
    """获取对话配置（只有一个默认配置）"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM chat_configs WHERE is_default=1 LIMIT 1')
    config = cursor.fetchone()
    
    if not config:
        # 如果没有配置，创建默认配置
        cursor.execute('''
            INSERT INTO chat_configs (config_id, name, llm_config_id, enable_search, enable_tools, max_history, temperature, is_default)
            VALUES ('default', '默认配置', 1, 1, 'search', 20, 0.7, 1)
        ''')
        conn.commit()
        cursor.execute('SELECT * FROM chat_configs WHERE is_default=1 LIMIT 1')
        config = cursor.fetchone()
    
    conn.close()
    return jsonify(dict(config) if config else {})


@app.route('/api/admin/chat', methods=['PUT'])
def update_chat_config():
    """更新对话配置"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        UPDATE chat_configs SET 
        llm_config_id=?, enable_search=?, enable_tools=?, max_history=?, 
        temperature=?, system_prompt=?, updated_at=CURRENT_TIMESTAMP 
        WHERE is_default=1
    ''', (data.get('llm_config_id', 1), data.get('enable_search', 1),
          data.get('enable_tools', 'search'), data.get('max_history', 20),
          data.get('temperature', 0.7), data.get('system_prompt', '')))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 工具配置管理 ====================

@app.route('/api/admin/tools', methods=['GET'])
def get_tool_configs():
    """获取工具配置"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM tool_configs ORDER BY is_default DESC, type')
    tools = [dict(row) for row in cursor.fetchall()]
    conn.close()
    return jsonify(tools)


@app.route('/api/admin/tools', methods=['POST'])
def add_tool_config():
    """添加工具配置"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        INSERT INTO tool_configs (tool_id, name, type, provider, api_url, api_key, config_json, max_results)
        VALUES (?, ?, ?, ?, ?, ?, ?, ?)
    ''', (data['tool_id'], data['name'], data['type'], data['provider'], 
          data['api_url'], data.get('api_key', ''), data.get('config_json', ''),
          data.get('max_results', 10)))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/tools/<tool_id>', methods=['PUT'])
def update_tool_config(tool_id):
    """更新工具配置"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
        UPDATE tool_configs SET name=?, type=?, provider=?, api_url=?, api_key=?, 
        config_json=?, max_results=?, updated_at=CURRENT_TIMESTAMP WHERE tool_id=?
    ''', (data['name'], data['type'], data['provider'], data['api_url'], 
          data.get('api_key', ''), data.get('config_json', ''),
          data.get('max_results', 10), tool_id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/tools/<tool_id>', methods=['DELETE'])
def delete_tool_config(tool_id):
    """删除工具配置"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('DELETE FROM tool_configs WHERE tool_id=?', (tool_id,))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


@app.route('/api/admin/tools/<tool_id>/default', methods=['POST'])
def set_default_tool(tool_id):
    """设置默认工具"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('UPDATE tool_configs SET is_default=0 WHERE type=(SELECT type FROM tool_configs WHERE tool_id=?)', (tool_id,))
    cursor.execute('UPDATE tool_configs SET is_default=1 WHERE tool_id=?', (tool_id,))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 系统配置管理 ====================

@app.route('/api/admin/system', methods=['GET'])
def get_system_configs():
    """获取系统配置"""
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('SELECT * FROM system_configs')
    configs = {row['key']: {'value': row['value'], 'description': row['description']} 
               for row in cursor.fetchall()}
    conn.close()
    return jsonify(configs)


@app.route('/api/admin/system', methods=['POST'])
def update_system_config():
    """更新系统配置"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    for key, value in data.items():
        cursor.execute('''
            UPDATE system_configs SET value=?, updated_at=CURRENT_TIMESTAMP WHERE key=?
        ''', (value, key))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 统计信息 ====================

@app.route('/api/admin/stats', methods=['GET'])
def get_stats():
    """获取统计信息"""
    conn = get_db()
    cursor = conn.cursor()
    
    # 今日统计
    today = datetime.now().strftime('%Y-%m-%d')
    
    # 各类型统计
    stats = {}
    
    # LLM调用统计
    cursor.execute('SELECT SUM(log_value) FROM stats_logs WHERE log_type="llm_call"')
    stats['llm_total_calls'] = cursor.fetchone()[0] or 0
    
    cursor.execute('SELECT SUM(log_value) FROM stats_logs WHERE log_type="llm_call" AND created_at >= ?', (today,))
    stats['llm_today_calls'] = cursor.fetchone()[0] or 0
    
    # 搜索统计
    cursor.execute('SELECT SUM(log_value) FROM stats_logs WHERE log_type="search_call"')
    stats['search_total_calls'] = cursor.fetchone()[0] or 0
    
    cursor.execute('SELECT SUM(log_value) FROM stats_logs WHERE log_type="search_call" AND created_at >= ?', (today,))
    stats['search_today_calls'] = cursor.fetchone()[0] or 0
    
    # 智能体使用统计
    cursor.execute('''
        SELECT log_key, SUM(log_value) as count FROM stats_logs 
        WHERE log_type="agent_use" GROUP BY log_key ORDER BY count DESC LIMIT 10
    ''')
    stats['agent_usage'] = [dict(row) for row in cursor.fetchall()]
    
    # 用户统计
    cursor.execute('SELECT COUNT(*) FROM stats_logs WHERE log_type="user_register"')
    stats['total_users'] = cursor.fetchone()[0] or 0
    
    # 智能体数量
    cursor.execute('SELECT COUNT(*) FROM agents WHERE is_active=1')
    stats['agent_count'] = cursor.fetchone()[0]
    
    # LLM配置数量
    cursor.execute('SELECT COUNT(*) FROM llm_configs WHERE is_active=1')
    stats['llm_count'] = cursor.fetchone()[0]
    
    conn.close()
    return jsonify(stats)


@app.route('/api/admin/stats/log', methods=['POST'])
def log_stats():
    """记录统计日志"""
    data = request.json
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('INSERT INTO stats_logs (log_type, log_key, log_value) VALUES (?, ?, ?)',
                   (data['type'], data.get('key', ''), data.get('value', 1)))
    conn.commit()
    conn.close()
    return jsonify({'success': True})


# ==================== 前端配置获取 ====================

@app.route('/api/config', methods=['GET'])
def get_frontend_config():
    """获取前端使用的配置"""
    conn = get_db()
    cursor = conn.cursor()
    
    # 获取默认LLM配置
    cursor.execute('SELECT * FROM llm_configs WHERE is_default=1 AND is_active=1 LIMIT 1')
    llm = cursor.fetchone()
    
    # 获取默认工具配置（搜索等）
    cursor.execute('SELECT * FROM tool_configs WHERE is_default=1 AND is_active=1')
    tools = [dict(row) for row in cursor.fetchall()]
    
    # 获取所有活跃的工具配置（供前端选择）
    cursor.execute('SELECT tool_id, name, type, provider, is_active FROM tool_configs WHERE is_active=1')
    allTools = [dict(row) for row in cursor.fetchall()]
    
    # 获取所有智能体（上线且活跃）
    cursor.execute('SELECT agent_id, name, avatar, category, description, system_prompt, heat, tags, enable_tools FROM agents WHERE is_online=1 AND is_active=1')
    agents = [dict(row) for row in cursor.fetchall()]
    
    # 获取默认对话配置
    cursor.execute('SELECT * FROM chat_configs WHERE is_default=1 LIMIT 1')
    chat_config = cursor.fetchone()
    
    # 获取系统配置
    cursor.execute('SELECT key, value FROM system_configs')
    system = {row['key']: row['value'] for row in cursor.fetchall()}
    
    conn.close()
    
    config = {
        'llm': dict(llm) if llm else None,
        'tools': tools,
        'allTools': allTools,  # 所有活跃的工具（供前端选择）
        'agents': agents,
        'chat_config': dict(chat_config) if chat_config else None,
        'system': {
            'appName': system.get('app_name', 'AI助手'),
            'version': system.get('app_version', '3.10.0'),
            'enableSearch': system.get('enable_search', 'true') == 'true',
            'guestLimits': {
                'chatSessions': int(system.get('guest_chat_sessions', '1')),
                'chatMessages': int(system.get('guest_chat_messages', '20')),
                'agentMessages': int(system.get('guest_agent_messages', '20')),
            },
            'developer': system.get('app_developer', 'OpenClaw Team'),
            'updateDate': system.get('app_update_date', '2026-04-27'),
            'technology': system.get('app_technology', '智谱 GLM-4.5-Air 大模型'),
            'description': system.get('app_description', '提供智能对话、多种智能体服务'),
            'privacyPolicyUrl': system.get('privacy_policy_url', ''),
            'userAgreementUrl': system.get('user_agreement_url', ''),
            'ttsProvider': system.get('tts_provider', 'edge'),
            'ttsVoice': system.get('tts_voice', 'zh-CN-XiaoxiaoNeural'),
        }
    }
    
    return jsonify(config)


# ==================== TTS 语音合成 ====================

@app.route('/api/tts', methods=['POST'])
def generate_tts():
    """使用 Edge TTS 生成语音"""
    data = request.json
    text = data.get('text', '')
    voice = data.get('voice', 'zh-CN-XiaoxiaoNeural')  # 默认中文女声
    
    if not text:
        return jsonify({'error': '缺少文本内容'}), 400
    
    try:
        # 使用 asyncio 运行 edge_tts
        async def generate_audio():
            communicate = edge_tts.Communicate(text, voice)
            audio_data = b''
            for chunk in communicate.stream_sync():
                if chunk['type'] == 'audio':
                    audio_data += chunk['data']
            return audio_data
        
        audio_data = asyncio.run(generate_audio())
        
        # 返回音频数据（MP3格式）
        return Response(audio_data, mimetype='audio/mpeg')
    
    except Exception as e:
        return jsonify({'error': f'TTS生成失败: {str(e)}'}), 500


@app.route('/api/tts/voices', methods=['GET'])
def get_tts_voices():
    """获取可用的 TTS 语音列表"""
    try:
        voices = asyncio.run(edge_tts.list_voices())
        # 过滤中文语音
        chinese_voices = [v for v in voices if v['Locale'].startswith('zh-')]
        voice_list = [{
            'name': v['ShortName'],
            'gender': v['Gender'],
            'locale': v['Locale']
        } for v in chinese_voices]
        return jsonify({'voices': voice_list})
    except Exception as e:
        return jsonify({'error': f'获取语音列表失败: {str(e)}'}), 500


# ==================== 启动 ====================

if __name__ == '__main__':
    # 初始化数据库
    init_db()
    
    # 启动服务
    print('🚀 AI Chat App Backend started on http://localhost:19021')
    print('📊 Admin Panel: http://localhost:19021/admin')
    print('👤 Default admin: admin / admin123')
    
    app.run(host='0.0.0.0', port=19021, debug=True)