"""
Application Layer Communication Manager - 应用编排层通信管理器
集成层间通信协议，为应用编排层提供通信能力
"""

import asyncio
import logging
from typing import Dict, Any, Optional, Callable
from datetime import datetime

from ..framework.abstractions.layer_communication import (
    LayerCommunicationManager,
    LayerMessage,
    LayerMessageType,
    LayerMessageStatus,
    LayerMessagePriority,
    LayerMessageHandler,
    LayerMessageRouter,
    LayerMessageQueue,
    LayerMessageFilter,
    LayerMessageTransformer,
    LayerMessageValidator,
    LayerMessageLogger
)

logger = logging.getLogger(__name__)


class ApplicationCommunicationManager:
    """应用编排层通信管理器"""
    
    def __init__(self):
        # 创建层间通信组件
        self.router = LayerMessageRouter()
        self.queue = LayerMessageQueue()
        self.filter = LayerMessageFilter()
        self.transformer = LayerMessageTransformer()
        self.validator = LayerMessageValidator()
        self.message_logger = LayerMessageLogger()
        
        # 设置队列的路由器
        self.queue.set_router(self.router)
        
        # 创建层间通信管理器
        self.layer_comm = LayerCommunicationManager(
            router=self.router,
            queue=self.queue,
            filter=self.filter,
            transformer=self.transformer,
            validator=self.validator,
            logger=self.message_logger
        )
        
        self._register_handlers()
        self.logger = logging.getLogger(f"{self.__class__.__name__}")
    
    def _register_handlers(self):
        """注册应用编排层的消息处理器"""
        # 注册各种应用功能的处理器
        self.router.register_handler("handle_api_request", self._handle_api_request)
        self.router.register_handler("process_user_input", self._handle_process_user_input)
        self.router.register_handler("orchestrate_workflow", self._handle_orchestrate_workflow)
        self.router.register_handler("manage_session", self._handle_manage_session)
        self.router.register_handler("handle_authentication", self._handle_authentication)
        self.router.register_handler("process_file_upload", self._handle_file_upload)
        self.router.register_handler("generate_response", self._handle_generate_response)
        self.router.register_handler("manage_user_context", self._handle_user_context)
    
    async def _handle_api_request(self, message: LayerMessage) -> LayerMessage:
        """处理API请求"""
        try:
            endpoint = message.content.get('endpoint')
            method = message.content.get('method', 'GET')
            params = message.content.get('params', {})
            headers = message.content.get('headers', {})
            
            # 处理不同类型的API请求
            if endpoint.startswith('/api/agents'):
                result = await self._handle_agent_api(method, endpoint, params, headers)
            elif endpoint.startswith('/api/workflows'):
                result = await self._handle_workflow_api(method, endpoint, params, headers)
            elif endpoint.startswith('/api/projects'):
                result = await self._handle_project_api(method, endpoint, params, headers)
            elif endpoint.startswith('/api/chat'):
                result = await self._handle_chat_api(method, endpoint, params, headers)
            else:
                result = await self._handle_generic_api(method, endpoint, params, headers)
            
            self.logger.info(f"API request processed: {method} {endpoint}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "api_result": result,
                    "endpoint": endpoint,
                    "method": method
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to handle API request: {e}")
            # 返回错误响应
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_process_user_input(self, message: LayerMessage) -> LayerMessage:
        """处理用户输入"""
        try:
            user_input = message.content.get('user_input')
            input_type = message.content.get('input_type', 'text')
            session_id = message.content.get('session_id')
            
            # 根据输入类型处理
            if input_type == 'text':
                result = await self._process_text_input(user_input, session_id)
            elif input_type == 'voice':
                result = await self._process_voice_input(user_input, session_id)
            elif input_type == 'file':
                result = await self._process_file_input(user_input, session_id)
            else:
                raise ValueError(f"Unknown input type: {input_type}")
            
            self.logger.info(f"User input processed: {input_type}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "processing_result": result,
                    "input_type": input_type,
                    "session_id": session_id
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to process user input: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_orchestrate_workflow(self, message: LayerMessage) -> LayerMessage:
        """处理工作流编排"""
        try:
            workflow_config = message.content.get('workflow_config')
            trigger_event = message.content.get('trigger_event')
            context = message.content.get('context', {})
            
            # 编排工作流执行
            orchestration_result = await self._orchestrate_workflow_execution(
                workflow_config, trigger_event, context
            )
            
            self.logger.info(f"Workflow orchestration completed")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "orchestration_result": orchestration_result,
                    "workflow_config": workflow_config
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to orchestrate workflow: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_manage_session(self, message: LayerMessage) -> LayerMessage:
        """处理会话管理"""
        try:
            session_id = message.content.get('session_id')
            action = message.content.get('action', 'create')
            session_data = message.content.get('data', {})
            
            # 执行会话管理操作
            if action == 'create':
                result = await self._create_session(session_data)
            elif action == 'update':
                result = await self._update_session(session_id, session_data)
            elif action == 'get':
                result = await self._get_session(session_id)
            elif action == 'delete':
                result = await self._delete_session(session_id)
            else:
                raise ValueError(f"Unknown session action: {action}")
            
            self.logger.info(f"Session {action} completed: {session_id}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "session_result": result,
                    "session_id": session_id,
                    "action": action
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to manage session: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_authentication(self, message: LayerMessage) -> LayerMessage:
        """处理身份认证"""
        try:
            auth_type = message.content.get('auth_type', 'token')
            credentials = message.content.get('credentials', {})
            
            # 执行身份认证
            auth_result = await self._authenticate_user(auth_type, credentials)
            
            self.logger.info(f"Authentication completed: {auth_type}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "auth_result": auth_result,
                    "auth_type": auth_type
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to authenticate: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_file_upload(self, message: LayerMessage) -> LayerMessage:
        """处理文件上传"""
        try:
            file_data = message.content.get('file_data')
            file_type = message.content.get('file_type')
            upload_config = message.content.get('config', {})
            
            # 处理文件上传
            upload_result = await self._process_file_upload(file_data, file_type, upload_config)
            
            self.logger.info(f"File upload completed: {file_type}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "upload_result": upload_result,
                    "file_type": file_type
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to handle file upload: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_generate_response(self, message: LayerMessage) -> LayerMessage:
        """处理响应生成"""
        try:
            request_data = message.content.get('request_data')
            response_type = message.content.get('response_type', 'json')
            context = message.content.get('context', {})
            
            # 生成响应
            response_result = await self._generate_application_response(
                request_data, response_type, context
            )
            
            self.logger.info(f"Response generated: {response_type}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "response_result": response_result,
                    "response_type": response_type
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to generate response: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    async def _handle_user_context(self, message: LayerMessage) -> LayerMessage:
        """处理用户上下文管理"""
        try:
            user_id = message.content.get('user_id')
            action = message.content.get('action', 'get')
            context_data = message.content.get('context_data', {})
            
            # 执行用户上下文操作
            if action == 'get':
                result = await self._get_user_context(user_id)
            elif action == 'update':
                result = await self._update_user_context(user_id, context_data)
            elif action == 'clear':
                result = await self._clear_user_context(user_id)
            else:
                raise ValueError(f"Unknown context action: {action}")
            
            self.logger.info(f"User context {action} completed: {user_id}")
            
            # 创建响应消息
            response_message = LayerMessage(
                id=f"response_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={
                    "context_result": result,
                    "user_id": user_id,
                    "action": action
                },
                status=LayerMessageStatus.COMPLETED,
                
            )
            
            return response_message
            
        except Exception as e:
            self.logger.error(f"Failed to manage user context: {e}")
            error_message = LayerMessage(
                id=f"error_{message.id}",
                type=LayerMessageType.RESPONSE,
                source="application",
                target=message.source,
                content={"error": str(e)},
                status=LayerMessageStatus.FAILED,
                
            )
            return error_message
    
    # 辅助方法 - API处理
    async def _handle_agent_api(self, method: str, endpoint: str, params: Dict, headers: Dict) -> Dict[str, Any]:
        """处理Agent相关API"""
        return {"api_type": "agent", "method": method, "endpoint": endpoint, "result": "success"}
    
    async def _handle_workflow_api(self, method: str, endpoint: str, params: Dict, headers: Dict) -> Dict[str, Any]:
        """处理工作流相关API"""
        return {"api_type": "workflow", "method": method, "endpoint": endpoint, "result": "success"}
    
    async def _handle_project_api(self, method: str, endpoint: str, params: Dict, headers: Dict) -> Dict[str, Any]:
        """处理项目相关API"""
        return {"api_type": "project", "method": method, "endpoint": endpoint, "result": "success"}
    
    async def _handle_chat_api(self, method: str, endpoint: str, params: Dict, headers: Dict) -> Dict[str, Any]:
        """处理聊天相关API"""
        return {"api_type": "chat", "method": method, "endpoint": endpoint, "result": "success"}
    
    async def _handle_generic_api(self, method: str, endpoint: str, params: Dict, headers: Dict) -> Dict[str, Any]:
        """处理通用API"""
        return {"api_type": "generic", "method": method, "endpoint": endpoint, "result": "success"}
    
    # 辅助方法 - 用户输入处理
    async def _process_text_input(self, user_input: str, session_id: str) -> Dict[str, Any]:
        """处理文本输入"""
        return {"input_processed": True, "input_type": "text", "session_id": session_id}
    
    async def _process_voice_input(self, user_input: Any, session_id: str) -> Dict[str, Any]:
        """处理语音输入"""
        return {"input_processed": True, "input_type": "voice", "session_id": session_id}
    
    async def _process_file_input(self, user_input: Any, session_id: str) -> Dict[str, Any]:
        """处理文件输入"""
        return {"input_processed": True, "input_type": "file", "session_id": session_id}
    
    # 辅助方法 - 工作流编排
    async def _orchestrate_workflow_execution(self, workflow_config: Dict, trigger_event: str, context: Dict) -> Dict[str, Any]:
        """编排工作流执行"""
        return {
            "orchestration_completed": True,
            "workflow_id": f"wf_{datetime.now().strftime('%Y%m%d_%H%M%S')}",
            "trigger_event": trigger_event
        }
    
    # 辅助方法 - 会话管理
    async def _create_session(self, session_data: Dict) -> Dict[str, Any]:
        """创建会话"""
        session_id = f"session_{datetime.now().strftime('%Y%m%d_%H%M%S')}"
        return {"session_id": session_id, "status": "created"}
    
    async def _update_session(self, session_id: str, session_data: Dict) -> Dict[str, Any]:
        """更新会话"""
        return {"session_id": session_id, "status": "updated"}
    
    async def _get_session(self, session_id: str) -> Dict[str, Any]:
        """获取会话"""
        return {"session_id": session_id, "data": {"created_at": datetime.now().isoformat()}}
    
    async def _delete_session(self, session_id: str) -> Dict[str, Any]:
        """删除会话"""
        return {"session_id": session_id, "status": "deleted"}
    
    # 辅助方法 - 身份认证
    async def _authenticate_user(self, auth_type: str, credentials: Dict) -> Dict[str, Any]:
        """用户身份认证"""
        return {
            "authenticated": True,
            "user_id": "user_123",
            "auth_type": auth_type,
            "token": "sample_token_123"
        }
    
    # 辅助方法 - 文件处理
    async def _process_file_upload(self, file_data: Any, file_type: str, config: Dict) -> Dict[str, Any]:
        """处理文件上传"""
        file_id = f"file_{datetime.now().strftime('%Y%m%d_%H%M%S')}"
        return {"file_id": file_id, "file_type": file_type, "status": "uploaded"}
    
    # 辅助方法 - 响应生成
    async def _generate_application_response(self, request_data: Dict, response_type: str, context: Dict) -> Dict[str, Any]:
        """生成应用响应"""
        return {
            "response_generated": True,
            "response_type": response_type,
            "generated_at": datetime.now().isoformat()
        }
    
    # 辅助方法 - 用户上下文
    async def _get_user_context(self, user_id: str) -> Dict[str, Any]:
        """获取用户上下文"""
        return {"user_id": user_id, "context": {"preferences": {}, "history": []}}
    
    async def _update_user_context(self, user_id: str, context_data: Dict) -> Dict[str, Any]:
        """更新用户上下文"""
        return {"user_id": user_id, "status": "updated", "context": context_data}
    
    async def _clear_user_context(self, user_id: str) -> Dict[str, Any]:
        """清除用户上下文"""
        return {"user_id": user_id, "status": "cleared"}
    
    async def send_message(self, message: LayerMessage) -> LayerMessage:
        """发送消息到其他层"""
        return await self.layer_comm.send_message(message)
    
    async def process_message(self, message: LayerMessage) -> LayerMessage:
        """处理接收到的消息"""
        return await self.layer_comm.process_message(message)
    
    def get_status(self) -> Dict[str, Any]:
        """获取通信管理器状态"""
        return {
            "component": "ApplicationCommunicationManager",
            "layer": "application",
            "handlers_registered": len(self.router.handlers) if hasattr(self.router, "handlers") else 0,
            "queue_size": self.queue.size(),
            "layer_comm_status": self.layer_comm.get_status() if hasattr(self.layer_comm, 'get_status') else {}
        } 