# ============================================================
# app/models/call.py - Call Model
# ============================================================
from datetime import datetime
from typing import Optional

class Call:
    """Call model for MongoDB"""
    
    @staticmethod
    def create_document(
        conversation_id: str,
        call_type: str,
        caller_id: str,
        receiver_id: str,
        webrtc_session_id: str,
    ) -> dict:
        """Create call document for insertion"""
        now = datetime.utcnow()
        return {
            "conversation_id": conversation_id,
            "call_type": call_type,  # "voice" or "video"
            "caller_id": caller_id,
            "receiver_id": receiver_id,
            "status": "ringing",  # "ringing", "ongoing", "completed", "missed", "declined"
            "started_at": None,
            "ended_at": None,
            "duration": 0,  # In seconds
            "webrtc_session_id": webrtc_session_id,
            "created_at": now,
        }
    
    @staticmethod
    def format_response(call_doc: dict) -> dict:
        """Format call document for API response"""
        if not call_doc:
            return None
        
        return {
            "id": str(call_doc.get("_id", "")),
            "conversation_id": call_doc.get("conversation_id"),
            "call_type": call_doc.get("call_type"),
            "caller_id": call_doc.get("caller_id"),
            "receiver_id": call_doc.get("receiver_id"),
            "status": call_doc.get("status"),
            "started_at": call_doc.get("started_at"),
            "ended_at": call_doc.get("ended_at"),
            "duration": call_doc.get("duration", 0),
            "webrtc_session_id": call_doc.get("webrtc_session_id"),
            "created_at": call_doc.get("created_at"),
        }