insightflow/backend/plugin_manager.py

#!/usr/bin/env python3
"""
InsightFlow Plugin Manager - Phase 7 Task 7
插件与集成系统：Chrome插件、飞书/钉钉机器人、Zapier/Make集成、WebDAV同步
"""

import os
import json
import hashlib
import hmac
import base64
import time
import uuid
import httpx
import asyncio
from datetime import datetime
from typing import Dict, List, Optional, Any, Callable
from dataclasses import dataclass, field
from enum import Enum
import sqlite3

# WebDAV 支持
try:
    import webdav4.client as webdav_client
    WEBDAV_AVAILABLE = True
except ImportError:
    WEBDAV_AVAILABLE = False


class PluginType(Enum):
    """插件类型"""
    CHROME_EXTENSION = "chrome_extension"
    FEISHU_BOT = "feishu_bot"
    DINGTALK_BOT = "dingtalk_bot"
    ZAPIER = "zapier"
    MAKE = "make"
    WEBDAV = "webdav"
    CUSTOM = "custom"


class PluginStatus(Enum):
    """插件状态"""
    ACTIVE = "active"
    INACTIVE = "inactive"
    ERROR = "error"
    PENDING = "pending"


@dataclass
class Plugin:
    """插件配置"""
    id: str
    name: str
    plugin_type: str
    project_id: str
    status: str = "active"
    config: Dict = field(default_factory=dict)
    created_at: str = ""
    updated_at: str = ""
    last_used_at: Optional[str] = None
    use_count: int = 0


@dataclass
class PluginConfig:
    """插件详细配置"""
    id: str
    plugin_id: str
    config_key: str
    config_value: str
    is_encrypted: bool = False
    created_at: str = ""
    updated_at: str = ""


@dataclass
class BotSession:
    """机器人会话"""
    id: str
    bot_type: str  # feishu, dingtalk
    session_id: str  # 群ID或会话ID
    session_name: str
    project_id: Optional[str] = None
    webhook_url: str = ""
    secret: str = ""
    is_active: bool = True
    created_at: str = ""
    updated_at: str = ""
    last_message_at: Optional[str] = None
    message_count: int = 0


@dataclass
class WebhookEndpoint:
    """Webhook 端点配置（Zapier/Make集成）"""
    id: str
    name: str
    endpoint_type: str  # zapier, make, custom
    endpoint_url: str
    project_id: Optional[str] = None
    auth_type: str = "none"  # none, api_key, oauth, custom
    auth_config: Dict = field(default_factory=dict)
    trigger_events: List[str] = field(default_factory=list)
    is_active: bool = True
    created_at: str = ""
    updated_at: str = ""
    last_triggered_at: Optional[str] = None
    trigger_count: int = 0


@dataclass
class WebDAVSync:
    """WebDAV 同步配置"""
    id: str
    name: str
    project_id: str
    server_url: str
    username: str
    password: str = ""  # 加密存储
    remote_path: str = "/insightflow"
    sync_mode: str = "bidirectional"  # bidirectional, upload_only, download_only
    sync_interval: int = 3600  # 秒
    last_sync_at: Optional[str] = None
    last_sync_status: str = "pending"  # pending, success, failed
    last_sync_error: str = ""
    is_active: bool = True
    created_at: str = ""
    updated_at: str = ""
    sync_count: int = 0


@dataclass
class ChromeExtensionToken:
    """Chrome 扩展令牌"""
    id: str
    token: str
    user_id: Optional[str] = None
    project_id: Optional[str] = None
    name: str = ""
    permissions: List[str] = field(default_factory=lambda: ["read", "write"])
    expires_at: Optional[str] = None
    created_at: str = ""
    last_used_at: Optional[str] = None
    use_count: int = 0
    is_revoked: bool = False


class PluginManager:
    """插件管理主类"""
    
    def __init__(self, db_manager=None):
        self.db = db_manager
        self._handlers = {}
        self._register_default_handlers()
    
    def _register_default_handlers(self):
        """注册默认处理器"""
        self._handlers[PluginType.CHROME_EXTENSION] = ChromeExtensionHandler(self)
        self._handlers[PluginType.FEISHU_BOT] = BotHandler(self, "feishu")
        self._handlers[PluginType.DINGTALK_BOT] = BotHandler(self, "dingtalk")
        self._handlers[PluginType.ZAPIER] = WebhookIntegration(self, "zapier")
        self._handlers[PluginType.MAKE] = WebhookIntegration(self, "make")
        self._handlers[PluginType.WEBDAV] = WebDAVSyncManager(self)
    
    def get_handler(self, plugin_type: PluginType) -> Optional[Any]:
        """获取插件处理器"""
        return self._handlers.get(plugin_type)
    
    # ==================== Plugin CRUD ====================
    
    def create_plugin(self, plugin: Plugin) -> Plugin:
        """创建插件"""
        conn = self.db.get_conn()
        now = datetime.now().isoformat()
        
        conn.execute(
            """INSERT INTO plugins 
               (id, name, plugin_type, project_id, status, config, created_at, updated_at, use_count)
               VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)""",
            (plugin.id, plugin.name, plugin.plugin_type, plugin.project_id,
             plugin.status, json.dumps(plugin.config), now, now, 0)
        )
        conn.commit()
        conn.close()
        
        plugin.created_at = now
        plugin.updated_at = now
        return plugin
    
    def get_plugin(self, plugin_id: str) -> Optional[Plugin]:
        """获取插件"""
        conn = self.db.get_conn()
        row = conn.execute(
            "SELECT * FROM plugins WHERE id = ?", (plugin_id,)
        ).fetchone()
        conn.close()
        
        if row:
            return self._row_to_plugin(row)
        return None
    
    def list_plugins(self, project_id: str = None, plugin_type: str = None, 
                     status: str = None) -> List[Plugin]:
        """列出插件"""
        conn = self.db.get_conn()
        
        conditions = []
        params = []
        
        if project_id:
            conditions.append("project_id = ?")
            params.append(project_id)
        if plugin_type:
            conditions.append("plugin_type = ?")
            params.append(plugin_type)
        if status:
            conditions.append("status = ?")
            params.append(status)
        
        where_clause = " AND ".join(conditions) if conditions else "1=1"
        
        rows = conn.execute(
            f"SELECT * FROM plugins WHERE {where_clause} ORDER BY created_at DESC",
            params
        ).fetchall()
        conn.close()
        
        return [self._row_to_plugin(row) for row in rows]
    
    def update_plugin(self, plugin_id: str, **kwargs) -> Optional[Plugin]:
        """更新插件"""
        conn = self.db.get_conn()
        
        allowed_fields = ['name', 'status', 'config']
        updates = []
        values = []
        
        for field in allowed_fields:
            if field in kwargs:
                updates.append(f"{field} = ?")
                if field == 'config':
                    values.append(json.dumps(kwargs[field]))
                else:
                    values.append(kwargs[field])
        
        if not updates:
            conn.close()
            return self.get_plugin(plugin_id)
        
        updates.append("updated_at = ?")
        values.append(datetime.now().isoformat())
        values.append(plugin_id)
        
        query = f"UPDATE plugins SET {', '.join(updates)} WHERE id = ?"
        conn.execute(query, values)
        conn.commit()
        conn.close()
        
        return self.get_plugin(plugin_id)
    
    def delete_plugin(self, plugin_id: str) -> bool:
        """删除插件"""
        conn = self.db.get_conn()
        
        # 删除关联的配置
        conn.execute("DELETE FROM plugin_configs WHERE plugin_id = ?", (plugin_id,))
        
        # 删除插件
        cursor = conn.execute("DELETE FROM plugins WHERE id = ?", (plugin_id,))
        conn.commit()
        conn.close()
        
        return cursor.rowcount > 0
    
    def _row_to_plugin(self, row: sqlite3.Row) -> Plugin:
        """将数据库行转换为 Plugin 对象"""
        return Plugin(
            id=row['id'],
            name=row['name'],
            plugin_type=row['plugin_type'],
            project_id=row['project_id'],
            status=row['status'],
            config=json.loads(row['config']) if row['config'] else {},
            created_at=row['created_at'],
            updated_at=row['updated_at'],
            last_used_at=row['last_used_at'],
            use_count=row['use_count']
        )
    
    # ==================== Plugin Config ====================
    
    def set_plugin_config(self, plugin_id: str, key: str, value: str, 
                          is_encrypted: bool = False) -> PluginConfig:
        """设置插件配置"""
        conn = self.db.get_conn()
        now = datetime.now().isoformat()
        
        # 检查是否已存在
        existing = conn.execute(
            "SELECT id FROM plugin_configs WHERE plugin_id = ? AND config_key = ?",
            (plugin_id, key)
        ).fetchone()
        
        if existing:
            conn.execute(
                """UPDATE plugin_configs 
                   SET config_value = ?, is_encrypted = ?, updated_at = ?
                   WHERE id = ?""",
                (value, is_encrypted, now, existing['id'])
            )
            config_id = existing['id']
        else:
            config_id = str(uuid.uuid4())[:8]
            conn.execute(
                """INSERT INTO plugin_configs 
                   (id, plugin_id, config_key, config_value, is_encrypted, created_at, updated_at)
                   VALUES (?, ?, ?, ?, ?, ?, ?)""",
                (config_id, plugin_id, key, value, is_encrypted, now, now)
            )
        
        conn.commit()
        conn.close()
        
        return PluginConfig(
            id=config_id,
            plugin_id=plugin_id,
            config_key=key,
            config_value=value,
            is_encrypted=is_encrypted,
            created_at=now,
            updated_at=now
        )
    
    def get_plugin_config(self, plugin_id: str, key: str) -> Optional[str]:
        """获取插件配置"""
        conn = self.db.get_conn()
        row = conn.execute(
            "SELECT config_value FROM plugin_configs WHERE plugin_id = ? AND config_key = ?",
            (plugin_id, key)
        ).fetchone()
        conn.close()
        
        return row['config_value'] if row else None
    
    def get_all_plugin_configs(self, plugin_id: str) -> Dict[str, str]:
        """获取插件所有配置"""
        conn = self.db.get_conn()
        rows = conn.execute(
            "SELECT config_key, config_value FROM plugin_configs WHERE plugin_id = ?",
            (plugin_id,)
        ).fetchall()
        conn.close()
        
        return {row['config_key']: row['config_value'] for row in rows}
    
    def delete_plugin_config(self, plugin_id: str, key: str) -> bool:
        """删除插件配置"""
        conn = self.db.get_conn()
        cursor = conn.execute(
            "DELETE FROM plugin_configs WHERE plugin_id = ? AND config_key = ?",
            (plugin_id, key)
        )
        conn.commit()
        conn.close()
        
        return cursor.rowcount > 0
    
    def record_plugin_usage(self, plugin_id: str):
        """记录插件使用"""
        conn = self.db.get_conn()
        now = datetime.now().isoformat()
        
        conn.execute(
            """UPDATE plugins 
               SET use_count = use_count + 1, last_used_at = ?
               WHERE id = ?""",
            (now, plugin_id)
        )
        conn.commit()
        conn.close()


class ChromeExtensionHandler:
    """Chrome 扩展处理器"""
    
    def __init__(self, plugin_manager: PluginManager):
        self.pm = plugin_manager
    
    def create_token(self, name: str, user_id: str = None, project_id: str = None,
                     permissions: List[str] = None, expires_days: int = None) -> ChromeExtensionToken:
        """创建 Chrome 扩展令牌"""
        token_id = str(uuid.uuid4())[:8]
        
        # 生成随机令牌
        raw_token = f"if_ext_{base64.urlsafe_b64encode(os.urandom(32)).decode('utf-8').rstrip('=')}"
        
        # 哈希存储
        token_hash = hashlib.sha256(raw_token.encode()).hexdigest()
        
        now = datetime.now().isoformat()
        expires_at = None
        if expires_days:
            from datetime import timedelta
            expires_at = (datetime.now() + timedelta(days=expires_days)).isoformat()
        
        conn = self.pm.db.get_conn()
        conn.execute(
            """INSERT INTO chrome_extension_tokens 
               (id, token_hash, user_id, project_id, name, permissions, expires_at, 
                created_at, is_revoked, use_count)
               VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
            (token_id, token_hash, user_id, project_id, name,
             json.dumps(permissions or ["read"]), expires_at, now, False, 0)
        )
        conn.commit()
        conn.close()
        
        return ChromeExtensionToken(
            id=token_id,
            token=raw_token,  # 仅返回一次
            user_id=user_id,
            project_id=project_id,
            name=name,
            permissions=permissions or ["read"],
            expires_at=expires_at,
            created_at=now
        )
    
    def validate_token(self, token: str) -> Optional[ChromeExtensionToken]:
        """验证 Chrome 扩展令牌"""
        token_hash = hashlib.sha256(token.encode()).hexdigest()
        
        conn = self.pm.db.get_conn()
        row = conn.execute(
            """SELECT * FROM chrome_extension_tokens 
               WHERE token_hash = ? AND is_revoked = 0""",
            (token_hash,)
        ).fetchone()
        conn.close()
        
        if not row:
            return None
        
        # 检查是否过期
        if row['expires_at'] and datetime.now().isoformat() > row['expires_at']:
            return None
        
        # 更新使用记录
        now = datetime.now().isoformat()
        conn = self.pm.db.get_conn()
        conn.execute(
            """UPDATE chrome_extension_tokens 
               SET use_count = use_count + 1, last_used_at = ?
               WHERE id = ?""",
            (now, row['id'])
        )
        conn.commit()
        conn.close()
        
        return ChromeExtensionToken(
            id=row['id'],
            token="",  # 不返回实际令牌
            user_id=row['user_id'],
            project_id=row['project_id'],
            name=row['name'],
            permissions=json.loads(row['permissions']),
            expires_at=row['expires_at'],
            created_at=row['created_at'],
            last_used_at=now,
            use_count=row['use_count'] + 1
        )
    
    def revoke_token(self, token_id: str) -> bool:
        """撤销令牌"""
        conn = self.pm.db.get_conn()
        cursor = conn.execute(
            "UPDATE chrome_extension_tokens SET is_revoked = 1 WHERE id = ?",
            (token_id,)
        )
        conn.commit()
        conn.close()
        
        return cursor.rowcount > 0
    
    def list_tokens(self, user_id: str = None, project_id: str = None) -> List[ChromeExtensionToken]:
        """列出令牌"""
        conn = self.pm.db.get_conn()
        
        conditions = ["is_revoked = 0"]
        params = []
        
        if user_id:
            conditions.append("user_id = ?")
            params.append(user_id)
        if project_id:
            conditions.append("project_id = ?")
            params.append(project_id)
        
        where_clause = " AND ".join(conditions)
        
        rows = conn.execute(
            f"SELECT * FROM chrome_extension_tokens WHERE {where_clause} ORDER BY created_at DESC",
            params
        ).fetchall()
        conn.close()
        
        tokens = []
        for row in rows:
            tokens.append(ChromeExtensionToken(
                id=row['id'],
                token="",  # 不返回实际令牌
                user_id=row['user_id'],
                project_id=row['project_id'],
                name=row['name'],
                permissions=json.loads(row['permissions']),
                expires_at=row['expires_at'],
                created_at=row['created_at'],
                last_used_at=row['last_used_at'],
                use_count=row['use_count'],
                is_revoked=bool(row['is_revoked'])
            ))
        
        return tokens
    
    async def import_webpage(self, token: ChromeExtensionToken, url: str, title: str,
                            content: str, html_content: str = None) -> Dict:
        """导入网页内容"""
        if not token.project_id:
            return {"success": False, "error": "Token not associated with any project"}
        
        if "write" not in token.permissions:
            return {"success": False, "error": "Insufficient permissions"}
        
        # 创建转录记录（将网页作为文档处理）
        transcript_id = str(uuid.uuid4())[:8]
        now = datetime.now().isoformat()
        
        # 构建完整文本
        full_text = f"# {title}\n\nURL: {url}\n\n{content}"
        
        conn = self.pm.db.get_conn()
        conn.execute(
            """INSERT INTO transcripts 
               (id, project_id, filename, full_text, type, created_at)
               VALUES (?, ?, ?, ?, ?, ?)""",
            (transcript_id, token.project_id, f"web_{title[:50]}.md", full_text, "webpage", now)
        )
        conn.commit()
        conn.close()
        
        return {
            "success": True,
            "transcript_id": transcript_id,
            "project_id": token.project_id,
            "url": url,
            "title": title,
            "content_length": len(content)
        }


class BotHandler:
    """飞书/钉钉机器人处理器"""
    
    def __init__(self, plugin_manager: PluginManager, bot_type: str):
        self.pm = plugin_manager
        self.bot_type = bot_type
    
    def create_session(self, session_id: str, session_name: str, 
                       project_id: str = None, webhook_url: str = "",
                       secret: str = "") -> BotSession:
        """创建机器人会话"""
        bot_id = str(uuid.uuid4())[:8]
        now = datetime.now().isoformat()
        
        conn = self.pm.db.get_conn()
        conn.execute(
            """INSERT INTO bot_sessions 
               (id, bot_type, session_id, session_name, project_id, webhook_url, secret,
                is_active, created_at, updated_at, message_count)
               VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
            (bot_id, self.bot_type, session_id, session_name, project_id, webhook_url, secret,
             True, now, now, 0)
        )
        conn.commit()
        conn.close()
        
        return BotSession(
            id=bot_id,
            bot_type=self.bot_type,
            session_id=session_id,
            session_name=session_name,
            project_id=project_id,
            webhook_url=webhook_url,
            secret=secret,
            is_active=True,
            created_at=now,
            updated_at=now
        )
    
    def get_session(self, session_id: str) -> Optional[BotSession]:
        """获取会话"""
        conn = self.pm.db.get_conn()
        row = conn.execute(
            """SELECT * FROM bot_sessions 
               WHERE session_id = ? AND bot_type = ?""",
            (session_id, self.bot_type)
        ).fetchone()
        conn.close()
        
        if row:
            return self._row_to_session(row)
        return None
    
    def list_sessions(self, project_id: str = None) -> List[BotSession]:
        """列出会话"""
        conn = self.pm.db.get_conn()
        
        if project_id:
            rows = conn.execute(
                """SELECT * FROM bot_sessions 
                   WHERE bot_type = ? AND project_id = ? ORDER BY created_at DESC""",
                (self.bot_type, project_id)
            ).fetchall()
        else:
            rows = conn.execute(
                """SELECT * FROM bot_sessions 
                   WHERE bot_type = ? ORDER BY created_at DESC""",
                (self.bot_type,)
            ).fetchall()
        
        conn.close()
        
        return [self._row_to_session(row) for row in rows]
    
    def update_session(self, session_id: str, **kwargs) -> Optional[BotSession]:
        """更新会话"""
        conn = self.pm.db.get_conn()
        
        allowed_fields = ['session_name', 'project_id', 'webhook_url', 'secret', 'is_active']
        updates = []
        values = []
        
        for field in allowed_fields:
            if field in kwargs:
                updates.append(f"{field} = ?")
                values.append(kwargs[field])
        
        if not updates:
            conn.close()
            return self.get_session(session_id)
        
        updates.append("updated_at = ?")
        values.append(datetime.now().isoformat())
        values.append(session_id)
        values.append(self.bot_type)
        
        query = f"UPDATE bot_sessions SET {', '.join(updates)} WHERE session_id = ? AND bot_type = ?"
        conn.execute(query, values)
        conn.commit()
        conn.close()
        
        return self.get_session(session_id)
    
    def delete_session(self, session_id: str) -> bool:
        """删除会话"""
        conn = self.pm.db.get_conn()
        cursor = conn.execute(
            "DELETE FROM bot_sessions WHERE session_id = ? AND bot_type = ?",
            (session_id, self.bot_type)
        )
        conn.commit()
        conn.close()
        
        return cursor.rowcount > 0
    
    def _row_to_session(self, row: sqlite3.Row) -> BotSession:
        """将数据库行转换为 BotSession 对象"""
        return BotSession(
            id=row['id'],
            bot_type=row['bot_type'],
            session_id=row['session_id'],
            session_name=row['session_name'],
            project_id=row['project_id'],
            webhook_url=row['webhook_url'],
            secret=row['secret'],
            is_active=bool(row['is_active']),
            created_at=row['created_at'],
            updated_at=row['updated_at'],
            last_message_at=row['last_message_at'],
            message_count=row['message_count']
        )
    
    async def handle_message(self, session: BotSession, message: Dict) -> Dict:
        """处理收到的消息"""
        now = datetime.now().isoformat()
        
        # 更新消息统计
        conn = self.pm.db.get_conn()
        conn.execute(
            """UPDATE bot_sessions 
               SET message_count = message_count + 1, last_message_at = ?
               WHERE id = ?""",
            (now, session.id)
        )
        conn.commit()
        conn.close()
        
        # 处理消息
        msg_type = message.get('msg_type', 'text')
        content = message.get('content', {})
        
        if msg_type == 'text':
            text = content.get('text', '')
            return await self._handle_text_message(session, text, message)
        elif msg_type == 'audio':
            # 处理音频消息
            return await self._handle_audio_message(session, message)
        elif msg_type == 'file':
            # 处理文件消息
            return await self._handle_file_message(session, message)
        
        return {"success": False, "error": "Unsupported message type"}
    
    async def _handle_text_message(self, session: BotSession, text: str, 
                                   raw_message: Dict) -> Dict:
        """处理文本消息"""
        # 简单命令处理
        if text.startswith('/help'):
            return {
                "success": True,
                "response": """🤖 InsightFlow 机器人命令：
/help - 显示帮助
/status - 查看项目状态
/analyze <URL> - 分析网页内容
/search <关键词> - 搜索知识库"""
            }
        
        if text.startswith('/status'):
            if not session.project_id:
                return {"success": True, "response": "⚠️ 当前会话未绑定项目"}
            
            # 获取项目状态
            summary = self.pm.db.get_project_summary(session.project_id)
            stats = summary.get('statistics', {})
            
            return {
                "success": True,
                "response": f"""📊 项目状态：
实体数量: {stats.get('entity_count', 0)}
关系数量: {stats.get('relation_count', 0)}
转录数量: {stats.get('transcript_count', 0)}"""
            }
        
        # 默认回复
        return {
            "success": True,
            "response": f"收到消息：{text[:100]}...\n\n使用 /help 查看可用命令"
        }
    
    async def _handle_audio_message(self, session: BotSession, message: Dict) -> Dict:
        """处理音频消息"""
        if not session.project_id:
            return {"success": False, "error": "Session not bound to any project"}
        
        # 下载音频文件
        audio_url = message.get('content', {}).get('download_url')
        if not audio_url:
            return {"success": False, "error": "No audio URL provided"}
        
        try:
            async with httpx.AsyncClient() as client:
                response = await client.get(audio_url)
                audio_data = response.content
            
            # 保存音频文件
            filename = f"bot_audio_{datetime.now().strftime('%Y%m%d_%H%M%S')}.mp3"
            
            # 这里应该调用 ASR 服务进行转录
            # 简化处理，返回提示
            return {
                "success": True,
                "response": "🎵 收到音频文件，正在处理中...\n分析完成后会通知您。",
                "audio_size": len(audio_data),
                "filename": filename
            }
        
        except Exception as e:
            return {"success": False, "error": f"Failed to process audio: {str(e)}"}
    
    async def _handle_file_message(self, session: BotSession, message: Dict) -> Dict:
        """处理文件消息"""
        return {
            "success": True,
            "response": "📎 收到文件，正在处理中..."
        }
    
    async def send_message(self, session: BotSession, message: str, 
                           msg_type: str = "text") -> bool:
        """发送消息到群聊"""
        if not session.webhook_url:
            return False
        
        try:
            if self.bot_type == "feishu":
                return await self._send_feishu_message(session, message, msg_type)
            elif self.bot_type == "dingtalk":
                return await self._send_dingtalk_message(session, message, msg_type)
            
            return False
        
        except Exception as e:
            print(f"Failed to send {self.bot_type} message: {e}")
            return False
    
    async def _send_feishu_message(self, session: BotSession, message: str, 
                                   msg_type: str) -> bool:
        """发送飞书消息"""
        import hashlib
        import base64
        
        timestamp = str(int(time.time()))
        
        # 生成签名
        if session.secret:
            string_to_sign = f"{timestamp}\n{session.secret}"
            hmac_code = hmac.new(
                session.secret.encode('utf-8'),
                string_to_sign.encode('utf-8'),
                digestmod=hashlib.sha256
            ).digest()
            sign = base64.b64encode(hmac_code).decode('utf-8')
        else:
            sign = ""
        
        payload = {
            "timestamp": timestamp,
            "sign": sign,
            "msg_type": "text",
            "content": {
                "text": message
            }
        }
        
        async with httpx.AsyncClient() as client:
            response = await client.post(
                session.webhook_url,
                json=payload,
                headers={"Content-Type": "application/json"}
            )
            return response.status_code == 200
    
    async def _send_dingtalk_message(self, session: BotSession, message: str, 
                                     msg_type: str) -> bool:
        """发送钉钉消息"""
        import hashlib
        import base64
        
        timestamp = str(round(time.time() * 1000))
        
        # 生成签名
        if session.secret:
            string_to_sign = f"{timestamp}\n{session.secret}"
            hmac_code = hmac.new(
                session.secret.encode('utf-8'),
                string_to_sign.encode('utf-8'),
                digestmod=hashlib.sha256
            ).digest()
            sign = base64.b64encode(hmac_code).decode('utf-8')
            sign = urllib.parse.quote(sign)
        else:
            sign = ""
        
        payload = {
            "msgtype": "text",
            "text": {
                "content": message
            }
        }
        
        url = session.webhook_url
        if sign:
            url = f"{url}&timestamp={timestamp}&sign={sign}"
        
        async with httpx.AsyncClient() as client:
            response = await client.post(
                url,
                json=payload,
                headers={"Content-Type": "application/json"}
            )
            return response.status_code == 200


class WebhookIntegration:
    """Zapier/Make Webhook 集成"""
    
    def __init__(self, plugin_manager: PluginManager, endpoint_type: str):
        self.pm = plugin_manager
        self.endpoint_type = endpoint_type
    
    def create_endpoint(self, name: str, endpoint_url: str, 
                        project_id: str = None, auth_type: str = "none",
                        auth_config: Dict = None, 
                        trigger_events: List[str] = None) -> WebhookEndpoint:
        """创建 Webhook 端点"""
        endpoint_id = str(uuid.uuid4())[:8]
        now = datetime.now().isoformat()
        
        conn = self.pm.db.get_conn()
        conn.execute(
            """INSERT INTO webhook_endpoints 
               (id, name, endpoint_type, endpoint_url, project_id, auth_type, auth_config,
                trigger_events, is_active, created_at, updated_at, trigger_count)
               VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
            (endpoint_id, name, self.endpoint_type, endpoint_url, project_id, auth_type,
             json.dumps(auth_config or {}), json.dumps(trigger_events or []), True,
             now, now, 0)
        )
        conn.commit()
        conn.close()
        
        return WebhookEndpoint(
            id=endpoint_id,
            name=name,
            endpoint_type=self.endpoint_type,
            endpoint_url=endpoint_url,
            project_id=project_id,
            auth_type=auth_type,
            auth_config=auth_config or {},
            trigger_events=trigger_events or [],
            is_active=True,
            created_at=now,
            updated_at=now
        )
    
    def get_endpoint(self, endpoint_id: str) -> Optional[WebhookEndpoint]:
        """获取端点"""
        conn = self.pm.db.get_conn()
        row = conn.execute(
            "SELECT * FROM webhook_endpoints WHERE id = ? AND endpoint_type = ?",
            (endpoint_id, self.endpoint_type)
        ).fetchone()
        conn.close()
        
        if row:
            return self._row_to_endpoint(row)
        return None
    
    def list_endpoints(self, project_id: str = None) -> List[WebhookEndpoint]:
        """列出端点"""
        conn = self.pm.db.get_conn()
        
        if project_id:
            rows = conn.execute(
                """SELECT * FROM webhook_endpoints 
                   WHERE endpoint_type = ? AND project_id = ? ORDER BY created_at DESC""",
                (self.endpoint_type, project_id)
            ).fetchall()
        else:
            rows = conn.execute(
                """SELECT * FROM webhook_endpoints 
                   WHERE endpoint_type = ? ORDER BY created_at DESC""",
                (self.endpoint_type,)
            ).fetchall()
        
        conn.close()
        
        return [self._row_to_endpoint(row) for row in rows]
    
    def update_endpoint(self, endpoint_id: str, **kwargs) -> Optional[WebhookEndpoint]:
        """更新端点"""
        conn = self.pm.db.get_conn()
        
        allowed_fields = ['name', 'endpoint_url', 'project_id', 'auth_type', 
                         'auth_config', 'trigger_events', 'is_active']
        updates = []
        values = []
        
        for field in allowed_fields:
            if field in kwargs:
                updates.append(f"{field} = ?")
                if field in ['auth_config', 'trigger_events']:
                    values.append(json.dumps(kwargs[field]))
                else:
                    values.append(kwargs[field])
        
        if not updates:
            conn.close()
            return self.get_endpoint(endpoint_id)
        
        updates.append("updated_at = ?")
        values.append(datetime.now().isoformat())
        values.append(endpoint_id)
        
        query = f"UPDATE webhook_endpoints SET {', '.join(updates)} WHERE id = ?"
        conn.execute(query, values)
        conn.commit()
        conn.close()
        
        return self.get_endpoint(endpoint_id)
    
    def delete_endpoint(self, endpoint_id: str) -> bool:
        """删除端点"""
        conn = self.pm.db.get_conn()
        cursor = conn.execute(
            "DELETE FROM webhook_endpoints WHERE id = ?",
            (endpoint_id,)
        )
        conn.commit()
        conn.close()
        
        return cursor.rowcount > 0
    
    def _row_to_endpoint(self, row: sqlite3.Row) -> WebhookEndpoint:
        """将数据库行转换为 WebhookEndpoint 对象"""
        return WebhookEndpoint(
            id=row['id'],
            name=row['name'],
            endpoint_type=row['endpoint_type'],
            endpoint_url=row['endpoint_url'],
            project_id=row['project_id'],
            auth_type=row['auth_type'],
            auth_config=json.loads(row['auth_config']) if row['auth_config'] else {},
            trigger_events=json.loads(row['trigger_events']) if row['trigger_events'] else [],
            is_active=bool(row['is_active']),
            created_at=row['created_at'],
            updated_at=row['updated_at'],
            last_triggered_at=row['last_triggered_at'],
            trigger_count=row['trigger_count']
        )
    
    async def trigger(self, endpoint: WebhookEndpoint, event_type: str, 
                      data: Dict) -> bool:
        """触发 Webhook"""
        if not endpoint.is_active:
            return False
        
        if event_type not in endpoint.trigger_events:
            return False
        
        try:
            headers = {"Content-Type": "application/json"}
            
            # 添加认证头
            if endpoint.auth_type == "api_key":
                api_key = endpoint.auth_config.get('api_key', '')
                header_name = endpoint.auth_config.get('header_name', 'X-API-Key')
                headers[header_name] = api_key
            elif endpoint.auth_type == "bearer":
                token = endpoint.auth_config.get('token', '')
                headers["Authorization"] = f"Bearer {token}"
            
            payload = {
                "event": event_type,
                "timestamp": datetime.now().isoformat(),
                "data": data
            }
            
            async with httpx.AsyncClient() as client:
                response = await client.post(
                    endpoint.endpoint_url,
                    json=payload,
                    headers=headers,
                    timeout=30.0
                )
            
            success = response.status_code in [200, 201, 202]
            
            # 更新触发统计
            now = datetime.now().isoformat()
            conn = self.pm.db.get_conn()
            conn.execute(
                """UPDATE webhook_endpoints 
                   SET trigger_count = trigger_count + 1, last_triggered_at = ?
                   WHERE id = ?""",
                (now, endpoint.id)
            )
            conn.commit()
            conn.close()
            
            return success
        
        except Exception as e:
            print(f"Failed to trigger webhook: {e}")
            return False
    
    async def test_endpoint(self, endpoint: WebhookEndpoint) -> Dict:
        """测试端点"""
        test_data = {
            "message": "This is a test event from InsightFlow",
            "test": True,
            "timestamp": datetime.now().isoformat()
        }
        
        success = await self.trigger(endpoint, "test", test_data)
        
        return {
            "success": success,
            "endpoint_id": endpoint.id,
            "endpoint_url": endpoint.endpoint_url,
            "message": "Test event sent successfully" if success else "Failed to send test event"
        }


class WebDAVSyncManager:
    """WebDAV 同步管理"""
    
    def __init__(self, plugin_manager: PluginManager):
        self.pm = plugin_manager
    
    def create_sync(self, name: str, project_id: str, server_url: str,
                    username: str, password: str, remote_path: str = "/insightflow",
                    sync_mode: str = "bidirectional", 
                    sync_interval: int = 3600) -> WebDAVSync:
        """创建 WebDAV 同步配置"""
        sync_id = str(uuid.uuid4())[:8]
        now = datetime.now().isoformat()
        
        conn = self.pm.db.get_conn()
        conn.execute(
            """INSERT INTO webdav_syncs 
               (id, name, project_id, server_url, username, password, remote_path,
                sync_mode, sync_interval, last_sync_status, is_active, created_at, updated_at, sync_count)
               VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
            (sync_id, name, project_id, server_url, username, password, remote_path,
             sync_mode, sync_interval, 'pending', True, now, now, 0)
        )
        conn.commit()
        conn.close()
        
        return WebDAVSync(
            id=sync_id,
            name=name,
            project_id=project_id,
            server_url=server_url,
            username=username,
            password=password,
            remote_path=remote_path,
            sync_mode=sync_mode,
            sync_interval=sync_interval,
            last_sync_status='pending',
            is_active=True,
            created_at=now,
            updated_at=now
        )
    
    def get_sync(self, sync_id: str) -> Optional[WebDAVSync]:
        """获取同步配置"""
        conn = self.pm.db.get_conn()
        row = conn.execute(
            "SELECT * FROM webdav_syncs WHERE id = ?",
            (sync_id,)
        ).fetchone()
        conn.close()
        
        if row:
            return self._row_to_sync(row)
        return None
    
    def list_syncs(self, project_id: str = None) -> List[WebDAVSync]:
        """列出同步配置"""
        conn = self.pm.db.get_conn()
        
        if project_id:
            rows = conn.execute(
                "SELECT * FROM webdav_syncs WHERE project_id = ? ORDER BY created_at DESC",
                (project_id,)
            ).fetchall()
        else:
            rows = conn.execute(
                "SELECT * FROM webdav_syncs ORDER BY created_at DESC"
            ).fetchall()
        
        conn.close()
        
        return [self._row_to_sync(row) for row in rows]
    
    def update_sync(self, sync_id: str, **kwargs) -> Optional[WebDAVSync]:
        """更新同步配置"""
        conn = self.pm.db.get_conn()
        
        allowed_fields = ['name', 'server_url', 'username', 'password', 
                         'remote_path', 'sync_mode', 'sync_interval', 'is_active']
        updates = []
        values = []
        
        for field in allowed_fields:
            if field in kwargs:
                updates.append(f"{field} = ?")
                values.append(kwargs[field])
        
        if not updates:
            conn.close()
            return self.get_sync(sync_id)
        
        updates.append("updated_at = ?")
        values.append(datetime.now().isoformat())
        values.append(sync_id)
        
        query = f"UPDATE webdav_syncs SET {', '.join(updates)} WHERE id = ?"
        conn.execute(query, values)
        conn.commit()
        conn.close()
        
        return self.get_sync(sync_id)
    
    def delete_sync(self, sync_id: str) -> bool:
        """删除同步配置"""
        conn = self.pm.db.get_conn()
        cursor = conn.execute(
            "DELETE FROM webdav_syncs WHERE id = ?",
            (sync_id,)
        )
        conn.commit()
        conn.close()
        
        return cursor.rowcount > 0
    
    def _row_to_sync(self, row: sqlite3.Row) -> WebDAVSync:
        """将数据库行转换为 WebDAVSync 对象"""
        return WebDAVSync(
            id=row['id'],
            name=row['name'],
            project_id=row['project_id'],
            server_url=row['server_url'],
            username=row['username'],
            password=row['password'],
            remote_path=row['remote_path'],
            sync_mode=row['sync_mode'],
            sync_interval=row['sync_interval'],
            last_sync_at=row['last_sync_at'],
            last_sync_status=row['last_sync_status'],
            last_sync_error=row['last_sync_error'] or "",
            is_active=bool(row['is_active']),
            created_at=row['created_at'],
            updated_at=row['updated_at'],
            sync_count=row['sync_count']
        )
    
    async def test_connection(self, sync: WebDAVSync) -> Dict:
        """测试 WebDAV 连接"""
        if not WEBDAV_AVAILABLE:
            return {"success": False, "error": "WebDAV library not available"}
        
        try:
            client = webdav_client.Client(
                sync.server_url,
                auth=(sync.username, sync.password)
            )
            
            # 尝试列出根目录
            client.list("/")
            
            return {
                "success": True,
                "message": "Connection successful"
            }
        
        except Exception as e:
            return {
                "success": False,
                "error": str(e)
            }
    
    async def sync_project(self, sync: WebDAVSync) -> Dict:
        """同步项目到 WebDAV"""
        if not WEBDAV_AVAILABLE:
            return {"success": False, "error": "WebDAV library not available"}
        
        if not sync.is_active:
            return {"success": False, "error": "Sync is not active"}
        
        try:
            client = webdav_client.Client(
                sync.server_url,
                auth=(sync.username, sync.password)
            )
            
            # 确保远程目录存在
            remote_project_path = f"{sync.remote_path}/{sync.project_id}"
            try:
                client.mkdir(remote_project_path)
            except:
                pass  # 目录可能已存在
            
            # 获取项目数据
            project = self.pm.db.get_project(sync.project_id)
            if not project:
                return {"success": False, "error": "Project not found"}
            
            # 导出项目数据为 JSON
            entities = self.pm.db.list_project_entities(sync.project_id)
            relations = self.pm.db.list_project_relations(sync.project_id)
            transcripts = self.pm.db.list_project_transcripts(sync.project_id)
            
            export_data = {
                "project": {
                    "id": project.id,
                    "name": project.name,
                    "description": project.description
                },
                "entities": [{"id": e.id, "name": e.name, "type": e.type} for e in entities],
                "relations": relations,
                "transcripts": [{"id": t['id'], "filename": t['filename']} for t in transcripts],
                "exported_at": datetime.now().isoformat()
            }
            
            # 上传 JSON 文件
            json_content = json.dumps(export_data, ensure_ascii=False, indent=2)
            json_path = f"{remote_project_path}/project_export.json"
            
            # 使用临时文件上传
            import tempfile
            with tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False) as f:
                f.write(json_content)
                temp_path = f.name
            
            client.upload_file(temp_path, json_path)
            os.unlink(temp_path)
            
            # 更新同步状态
            now = datetime.now().isoformat()
            conn = self.pm.db.get_conn()
            conn.execute(
                """UPDATE webdav_syncs 
                   SET last_sync_at = ?, last_sync_status = ?, sync_count = sync_count + 1
                   WHERE id = ?""",
                (now, 'success', sync.id)
            )
            conn.commit()
            conn.close()
            
            return {
                "success": True,
                "message": "Project synced successfully",
                "entities_count": len(entities),
                "relations_count": len(relations),
                "remote_path": json_path
            }
        
        except Exception as e:
            # 更新失败状态
            conn = self.pm.db.get_conn()
            conn.execute(
                """UPDATE webdav_syncs 
                   SET last_sync_status = ?, last_sync_error = ?
                   WHERE id = ?""",
                ('failed', str(e), sync.id)
            )
            conn.commit()
            conn.close()
            
            return {
                "success": False,
                "error": str(e)
            }


# Singleton instance
_plugin_manager = None

def get_plugin_manager(db_manager=None):
    """获取 PluginManager 单例"""
    global _plugin_manager
    if _plugin_manager is None:
        _plugin_manager = PluginManager(db_manager)
    return _plugin_manager