app.py

from dataclasses import dataclass
from enum import Enum
from typing import Optional, Dict, Any
from composio_llamaindex import ComposioToolSet, App, Action
from datetime import datetime, timedelta
from collections import defaultdict, Counter
import gradio as gr
import os
import json
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

class ConnectionStatus(Enum):
    PENDING = "pending"
    ACTIVE = "active"
    FAILED = "failed"
    NOT_FOUND = "not_found"

@dataclass
class APIResponse:
    success: bool
    data: Optional[Dict[str, Any]] = None
    error: Optional[str] = None
    
    def to_json(self) -> str:
        return json.dumps({
            "success": self.success,
            "data": self.data,
            "error": self.error
        })

class CalendarService:
    def __init__(self):
        self.toolset = ComposioToolSet(api_key=os.getenv('COMPOSIO_API_KEY'))
        self.connections: Dict[str, Dict[str, Any]] = {}

    def analyze_calendar_events(self, response_data):
        """
        Analyze calendar events and return statistics about meetings.
        """
        current_year = datetime.now().year
        meetings = []
        participants = []
        meeting_times = []
        total_duration = timedelta()
        monthly_meetings = defaultdict(int)
        daily_meetings = defaultdict(int)
        
        events = response_data.get('data', {}).get('event_data', {}).get('event_data', [])
        
        for event in events:
            start_data = event.get('start', {})
            end_data = event.get('end', {})
            
            try:
                start = datetime.fromisoformat(start_data.get('dateTime').replace('Z', '+00:00'))
                end = datetime.fromisoformat(end_data.get('dateTime').replace('Z', '+00:00'))
                
                if start.year == current_year:
                    duration = end - start
                    total_duration += duration
                    
                    monthly_meetings[start.strftime('%B')] += 1
                    daily_meetings[start.strftime('%A')] += 1
                    meeting_times.append(start.strftime('%H:%M'))
                    
                    if 'attendees' in event:
                        for attendee in event['attendees']:
                            if attendee.get('responseStatus') != 'declined':
                                participants.append(attendee.get('email'))
                    
                    organizer_email = event.get('organizer', {}).get('email')
                    if organizer_email:
                        participants.append(organizer_email)
                    
                    meetings.append({
                        'start': start,
                        'duration': duration,
                        'summary': event.get('summary', 'No Title')
                    })
            except (ValueError, TypeError, AttributeError) as e:
                print(f"Error processing event: {e}")
                continue
        
        total_meetings = len(meetings)
        stats = {
            "total_meetings_this_year": total_meetings
        }
        
        if total_meetings > 0:
            stats.update({
                "total_time_spent": str(total_duration),
                "busiest_month": max(monthly_meetings.items(), key=lambda x: x[1])[0] if monthly_meetings else "N/A",
                "busiest_day": max(daily_meetings.items(), key=lambda x: x[1])[0] if daily_meetings else "N/A",
                "most_frequent_participant": Counter(participants).most_common(1)[0][0] if participants else "N/A",
                "average_meeting_duration": str(total_duration / total_meetings),
                "most_common_meeting_time": Counter(meeting_times).most_common(1)[0][0] if meeting_times else "N/A",
                "monthly_breakdown": dict(monthly_meetings),
                "daily_breakdown": dict(daily_meetings)
            })
        else:
            stats.update({
                "total_time_spent": "0:00:00",
                "busiest_month": "N/A",
                "busiest_day": "N/A",
                "most_frequent_participant": "N/A",
                "average_meeting_duration": "0:00:00",
                "most_common_meeting_time": "N/A",
                "monthly_breakdown": {},
                "daily_breakdown": {}
            })
        
        return stats
        
    def initiate_connection(self, entity_id: str, redirect_url: Optional[str] = None) -> APIResponse:
        try:
            if not redirect_url:
                redirect_url = "https://yourwebsite.com/connection/success"
                
            connection_request = self.toolset.initiate_connection(
                entity_id=entity_id,
                app=App.GOOGLECALENDAR
            )
            
            self.connections[entity_id] = {
                'status': ConnectionStatus.PENDING.value,
                'redirect_url': connection_request.redirectUrl,
                'created_at': datetime.now().isoformat()
            }
            
            return APIResponse(
                success=True,
                data={
                    'status': ConnectionStatus.PENDING.value,
                    'redirect_url': connection_request.redirectUrl,
                    'wait_time': 60,
                    'message': "Please authenticate using the provided link."
                }
            )
            
        except Exception as e:
            return APIResponse(
                success=False,
                error=f"Failed to initiate connection: {str(e)}"
            )
    
    def check_status(self, entity_id: str) -> APIResponse:
        try:
            if entity_id not in self.connections:
                return APIResponse(
                    success=False,
                    error="No connection found for this entity ID"
                )
            
            connection = self.connections[entity_id]
            
            return APIResponse(
                success=True,
                data={
                    'status': connection['status'],
                    'message': f"Connection status: {connection['status']}"
                }
            )
            
        except Exception as e:
            return APIResponse(
                success=False,
                error=f"Failed to check status: {str(e)}"
            )
    
    def generate_wrapped(self, entity_id: str) -> APIResponse:
        try:
            # Get current year's start and end dates
            current_year = datetime.now().year
            time_min = f"{current_year},1,1,0,0,0"
            time_max = f"{current_year},12,31,23,59,59"
            
            request_params = {
                "calendar_id": "primary",
                "timeMin": time_min,
                "timeMax": time_max,
                "single_events": True,
                "max_results": 2500,
                "order_by": "startTime"
            }
            
            events_response = self.toolset.execute_action(
                action=Action.GOOGLECALENDAR_FIND_EVENT,
                params=request_params,
                entity_id=entity_id
            )
            
            if events_response["successfull"]:
                stats = self.analyze_calendar_events(events_response)
                return APIResponse(
                    success=True,
                    data=stats
                )
            else:
                return APIResponse(
                    success=False,
                    error=events_response["error"] or "Failed to fetch calendar events"
                )
            
        except Exception as e:
            return APIResponse(
                success=False,
                error=f"Failed to generate wrapped: {str(e)}"
            )

def create_gradio_api():
    service = CalendarService()
    
    def handle_connection(entity_id: str, redirect_url: Optional[str] = None) -> str:
        response = service.initiate_connection(entity_id, redirect_url)
        return response.to_json()
    
    def check_status(entity_id: str) -> str:
        response = service.check_status(entity_id)
        return response.to_json()
    
    def generate_wrapped(entity_id: str) -> str:
        response = service.generate_wrapped(entity_id)
        return response.to_json()
    
    # Create API endpoints
    connection_api = gr.Interface(
        fn=handle_connection,
        inputs=[
            gr.Textbox(label="Entity ID"),
            gr.Textbox(label="Redirect URL", placeholder="https://yourwebsite.com/connection/success")
        ],
        outputs=gr.JSON(),
        title="Initialize Calendar Connection",
        description="Start a new calendar connection for an entity",
        examples=[["user123", "https://example.com/callback"]]
    )
    
    status_api = gr.Interface(
        fn=check_status,
        inputs=gr.Textbox(label="Entity ID"),
        outputs=gr.JSON(),
        title="Check Connection Status",
        description="Check the status of an existing connection",
        examples=[["user123"]]
    )
    
    wrapped_api = gr.Interface(
        fn=generate_wrapped,
        inputs=gr.Textbox(label="Entity ID"),
        outputs=gr.JSON(),
        title="Generate Calendar Wrapped",
        description="Generate a calendar wrapped summary for an entity",
        examples=[["user123"]]
    )
    
    # Combine all interfaces
    api = gr.TabbedInterface(
        [connection_api, status_api, wrapped_api],
        ["Connect", "Check Status", "Generate Wrapped"],
        title="Calendar Wrapped API",
    )
    
    return api

if __name__ == "__main__":
    api = create_gradio_api()
    api.launch(server_name="0.0.0.0", server_port=7860)