"""
Monitoring API Endpoints
Production monitoring and metrics endpoints
"""

from fastapi import APIRouter, Depends, HTTPException, status
from typing import Any
from datetime import datetime

from app.services.monitoring_collector import MonitoringCollector
from monitoring.config import MonitoringConfig

router = APIRouter(prefix="/monitoring", tags=["monitoring"])

# Dependency to get monitoring collector
async def get_monitoring_collector():
    """Get monitoring collector instance"""
    collector = MonitoringCollector()
    return collector

@router.get("/health", response_model=dict[str, Any])
async def get_system_health(
    collector: MonitoringCollector = Depends(get_monitoring_collector)
):
    """Get overall system health status"""
    try:
        health_status = collector.get_health_status()
        return {
            "success": True,
            "data": health_status,
            "timestamp": datetime.utcnow().isoformat()
        }
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=f"Failed to get health status: {str(e)}"
        )

@router.get("/performance", response_model=dict[str, Any])
async def get_performance_metrics(
    minutes: int = 5,
    collector: MonitoringCollector = Depends(get_monitoring_collector)
):
    """Get performance metrics for the last N minutes"""
    try:
        if minutes > 60:
            raise HTTPException(
                status_code=status.HTTP_400_BAD_REQUEST,
                detail="Maximum time range is 60 minutes"
            )
        
        metrics = collector.get_performance_metrics(minutes)
        return {
            "success": True,
            "data": metrics,
            "timestamp": datetime.utcnow().isoformat()
        }
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=f"Failed to get performance metrics: {str(e)}"
        )

@router.get("/security", response_model=dict[str, Any])
async def get_security_metrics(
    minutes: int = 5,
    collector: MonitoringCollector = Depends(get_monitoring_collector)
):
    """Get security metrics for the last N minutes"""
    try:
        if minutes > 60:
            raise HTTPException(
                status_code=status.HTTP_400_BAD_REQUEST,
                detail="Maximum time range is 60 minutes"
            )
        
        metrics = collector.get_security_metrics(minutes)
        return {
            "success": True,
            "data": metrics,
            "timestamp": datetime.utcnow().isoformat()
        }
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=f"Failed to get security metrics: {str(e)}"
        )

@router.get("/business", response_model=dict[str, Any])
async def get_business_metrics(
    minutes: int = 5,
    collector: MonitoringCollector = Depends(get_monitoring_collector)
):
    """Get business metrics for the last N minutes"""
    try:
        if minutes > 60:
            raise HTTPException(
                status_code=status.HTTP_400_BAD_REQUEST,
                detail="Maximum time range is 60 minutes"
            )
        
        metrics = collector.get_business_metrics(minutes)
        return {
            "success": True,
            "data": metrics,
            "timestamp": datetime.utcnow().isoformat()
        }
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=f"Failed to get business metrics: {str(e)}"
        )

@router.get("/dashboard", response_model=dict[str, Any])
async def get_dashboard_metrics(
    collector: MonitoringCollector = Depends(get_monitoring_collector)
):
    """Get comprehensive dashboard metrics"""
    try:
        health = collector.get_health_status()
        performance = collector.get_performance_metrics(5)
        security = collector.get_security_metrics(5)
        business = collector.get_business_metrics(5)
        
        return {
            "success": True,
            "data": {
                "health": health,
                "performance": performance,
                "security": security,
                "business": business
            },
            "timestamp": datetime.utcnow().isoformat()
        }
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=f"Failed to get dashboard metrics: {str(e)}"
        )

@router.get("/status", response_model=dict[str, Any])
async def get_monitoring_status():
    """Get monitoring system status"""
    try:
        return {
            "success": True,
            "data": {
                "monitoring_enabled": True,
                "environment": MonitoringConfig.ENVIRONMENT,
                "api_version": "1.0.0",
                "features": {
                    "performance_monitoring": MonitoringConfig.ENABLE_PERFORMANCE_MONITORING,
                    "security_monitoring": MonitoringConfig.ENABLE_SECURITY_MONITORING,
                    "business_metrics": MonitoringConfig.ENABLE_BUSINESS_METRICS
                },
                "alert_thresholds": MonitoringConfig.ALERT_THRESHOLDS
            },
            "timestamp": datetime.utcnow().isoformat()
        }
    except Exception as e:
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
            detail=f"Failed to get monitoring status: {str(e)}"
        )