from typing import Dict, Any, Optional
import logging
from datetime import datetime, UTC
from O365 import Account, MSGraphProtocol

from modules.methods.methodBase import MethodBase, MethodResult
from modules.models.userConnection import UserConnection

logger = logging.getLogger(__name__)

class MethodOutlook(MethodBase):
    """Outlook method implementation for email operations"""
    
    def __init__(self):
        super().__init__()
        self.name = "outlook"
        self.description = "Handle Outlook email operations like reading and sending emails"
        
    @property
    def actions(self) -> Dict[str, Dict[str, Any]]:
        """Available actions and their parameters"""
        return {
            "readMails": {
                "description": "Read emails from Outlook",
                "retryMax": 2,
                "timeout": 30,
                "parameters": {
                    "folder": {"type": "string", "required": False},
                    "query": {"type": "string", "required": False},
                    "maxResults": {"type": "number", "required": False},
                    "includeAttachments": {"type": "boolean", "required": False}
                }
            },
            "sendMail": {
                "description": "Send email through Outlook",
                "retryMax": 2,
                "timeout": 30,
                "parameters": {
                    "to": {"type": "array", "items": "string", "required": True},
                    "subject": {"type": "string", "required": True},
                    "body": {"type": "string", "required": True},
                    "cc": {"type": "array", "items": "string", "required": False},
                    "bcc": {"type": "array", "items": "string", "required": False},
                    "attachments": {"type": "array", "items": "string", "required": False}
                }
            }
        }
    
    async def execute(self, action: str, parameters: Dict[str, Any], authData: Optional[Dict[str, Any]] = None) -> MethodResult:
        """Execute Outlook method"""
        try:
            # Validate parameters
            if not await self.validateParameters(action, parameters):
                return self._createResult(
                    success=False,
                    data={"error": f"Invalid parameters for {action}"}
                )
            
            # Get UserConnection from auth_data
            if not authData or "userConnection" not in authData:
                return self._createResult(
                    success=False,
                    data={"error": "UserConnection required for Outlook operations"}
                )
            
            userConnection: UserConnection = authData["userConnection"]
            
            # Execute action
            if action == "readMails":
                return await self._readMails(parameters, userConnection)
            elif action == "sendMail":
                return await self._sendMail(parameters, userConnection)
            else:
                return self._createResult(
                    success=False,
                    data={"error": f"Unknown action: {action}"}
                )
                
        except Exception as e:
            logger.error(f"Error executing Outlook {action}: {e}")
            return self._createResult(
                success=False,
                data={"error": str(e)}
            )
    
    async def _readMails(self, parameters: Dict[str, Any], userConnection: UserConnection) -> MethodResult:
        """Read emails from Outlook"""
        try:
            folder = parameters.get("folder", "inbox")
            query = parameters.get("query")
            maxResults = parameters.get("maxResults", 10)
            includeAttachments = parameters.get("includeAttachments", False)
            
            # Create Outlook account
            account = Account(
                credentials=(userConnection.authToken, userConnection.refreshToken),
                protocol=MSGraphProtocol()
            )
            
            # Get mailbox
            mailbox = account.mailbox()
            
            # Get folder
            targetFolder = mailbox.folder(folder_name=folder)
            
            # Get messages
            if query:
                messages = targetFolder.get_messages(query=query, limit=maxResults)
            else:
                messages = targetFolder.get_messages(limit=maxResults)
            
            # Process messages
            results = []
            for message in messages:
                msgData = {
                    "id": message.object_id,
                    "subject": message.subject,
                    "from": message.sender.address,
                    "to": [to.address for to in message.to],
                    "cc": [cc.address for cc in message.cc],
                    "received": message.received.strftime("%Y-%m-%d %H:%M:%S"),
                    "body": message.body,
                    "hasAttachments": message.has_attachments
                }
                
                if includeAttachments and message.has_attachments:
                    attachments = []
                    for attachment in message.attachments:
                        attachments.append({
                            "name": attachment.name,
                            "contentType": attachment.content_type,
                            "size": attachment.size
                        })
                    msgData["attachments"] = attachments
                
                results.append(msgData)
            
            return self._createResult(
                success=True,
                data={
                    "folder": folder,
                    "query": query,
                    "messages": results
                }
            )
        except Exception as e:
            logger.error(f"Error reading Outlook emails: {e}")
            return self._createResult(
                success=False,
                data={"error": f"Read failed: {str(e)}"}
            )
    
    async def _sendMail(self, parameters: Dict[str, Any], userConnection: UserConnection) -> MethodResult:
        """Send email through Outlook"""
        try:
            toAddresses = parameters["to"]
            subject = parameters["subject"]
            body = parameters["body"]
            ccAddresses = parameters.get("cc", [])
            bccAddresses = parameters.get("bcc", [])
            attachments = parameters.get("attachments", [])
            
            # Create Outlook account
            account = Account(
                credentials=(userConnection.authToken, userConnection.refreshToken),
                protocol=MSGraphProtocol()
            )
            
            # Get mailbox
            mailbox = account.mailbox()
            
            # Create new message
            message = mailbox.new_message()
            message.to.add(toAddresses)
            if ccAddresses:
                message.cc.add(ccAddresses)
            if bccAddresses:
                message.bcc.add(bccAddresses)
            message.subject = subject
            message.body = body
            
            # Add attachments
            for attachmentPath in attachments:
                message.attachments.add(attachmentPath)
            
            # Send message
            message.send()
            
            return self._createResult(
                success=True,
                data={
                    "to": toAddresses,
                    "subject": subject,
                    "sent": datetime.now(UTC).isoformat()
                }
            )
        except Exception as e:
            logger.error(f"Error sending Outlook email: {e}")
            return self._createResult(
                success=False,
                data={"error": f"Send failed: {str(e)}"}
            )