"""
Enterprise Dashboard API Endpoints for Orchestrator Service
"""

from fastapi import APIRouter, Depends, HTTPException
from typing import List, Optional, Dict, Any
from datetime import date
import structlog

from app.services.enterprise_dashboard_service import EnterpriseDashboardService
from shared.auth.tenant_access import verify_tenant_access_dep
from shared.clients.tenant_client import TenantServiceClient
from shared.clients.forecast_client import ForecastServiceClient
from shared.clients.production_client import ProductionServiceClient
from shared.clients.sales_client import SalesServiceClient
from shared.clients.inventory_client import InventoryServiceClient
from shared.clients.distribution_client import DistributionServiceClient

logger = structlog.get_logger()
router = APIRouter(prefix="/api/v1/tenants/{tenant_id}/enterprise", tags=["enterprise"])


# Add dependency injection function
from app.services.enterprise_dashboard_service import EnterpriseDashboardService
from shared.clients import (
    get_tenant_client,
    get_forecast_client,
    get_production_client,
    get_sales_client,
    get_inventory_client,
    get_procurement_client,
    get_distribution_client
)

def get_enterprise_dashboard_service() -> EnterpriseDashboardService:
    from app.core.config import settings
    tenant_client = get_tenant_client(settings)
    forecast_client = get_forecast_client(settings)
    production_client = get_production_client(settings)
    sales_client = get_sales_client(settings)
    inventory_client = get_inventory_client(settings)
    distribution_client = get_distribution_client(settings)
    procurement_client = get_procurement_client(settings)

    return EnterpriseDashboardService(
        tenant_client=tenant_client,
        forecast_client=forecast_client,
        production_client=production_client,
        sales_client=sales_client,
        inventory_client=inventory_client,
        distribution_client=distribution_client,
        procurement_client=procurement_client
    )

@router.get("/network-summary")
async def get_network_summary(
    tenant_id: str,
    enterprise_service: EnterpriseDashboardService = Depends(get_enterprise_dashboard_service),
    verified_tenant: str = Depends(verify_tenant_access_dep)
):
    """
    Get network summary metrics for enterprise dashboard
    """
    try:
        # Verify user has network access
        tenant_info = await enterprise_service.tenant_client.get_tenant(tenant_id)
        if not tenant_info:
            raise HTTPException(status_code=404, detail="Tenant not found")
        if tenant_info.get('tenant_type') != 'parent':
            raise HTTPException(status_code=403, detail="Only parent tenants can access enterprise dashboard")

        result = await enterprise_service.get_network_summary(parent_tenant_id=tenant_id)
        return result
    except Exception as e:
        logger.error(f"Error getting network summary: {e}", exc_info=True)
        raise HTTPException(status_code=500, detail="Failed to get network summary")


@router.get("/children-performance")
async def get_children_performance(
    tenant_id: str,
    metric: str = "sales",
    period_days: int = 30,
    enterprise_service: EnterpriseDashboardService = Depends(get_enterprise_dashboard_service),
    verified_tenant: str = Depends(verify_tenant_access_dep)
):
    """
    Get anonymized performance ranking of child tenants
    """
    try:
        # Verify user has network access
        tenant_info = await enterprise_service.tenant_client.get_tenant(tenant_id)
        if not tenant_info:
            raise HTTPException(status_code=404, detail="Tenant not found")
        if tenant_info.get('tenant_type') != 'parent':
            raise HTTPException(status_code=403, detail="Only parent tenants can access enterprise dashboard")

        result = await enterprise_service.get_children_performance(
            parent_tenant_id=tenant_id,
            metric=metric,
            period_days=period_days
        )
        return result
    except Exception as e:
        logger.error(f"Error getting children performance: {e}", exc_info=True)
        raise HTTPException(status_code=500, detail="Failed to get children performance")


@router.get("/distribution-overview")
async def get_distribution_overview(
    tenant_id: str,
    target_date: Optional[date] = None,
    enterprise_service: EnterpriseDashboardService = Depends(get_enterprise_dashboard_service),
    verified_tenant: str = Depends(verify_tenant_access_dep)
):
    """
    Get distribution overview for enterprise dashboard
    """
    try:
        # Verify user has network access
        tenant_info = await enterprise_service.tenant_client.get_tenant(tenant_id)
        if not tenant_info:
            raise HTTPException(status_code=404, detail="Tenant not found")
        if tenant_info.get('tenant_type') != 'parent':
            raise HTTPException(status_code=403, detail="Only parent tenants can access enterprise dashboard")

        if target_date is None:
            target_date = date.today()

        result = await enterprise_service.get_distribution_overview(
            parent_tenant_id=tenant_id,
            target_date=target_date
        )
        return result
    except Exception as e:
        logger.error(f"Error getting distribution overview: {e}", exc_info=True)
        raise HTTPException(status_code=500, detail="Failed to get distribution overview")


@router.get("/forecast-summary")
async def get_enterprise_forecast_summary(
    tenant_id: str,
    days_ahead: int = 7,
    enterprise_service: EnterpriseDashboardService = Depends(get_enterprise_dashboard_service),
    verified_tenant: str = Depends(verify_tenant_access_dep)
):
    """
    Get aggregated forecast summary for the enterprise network
    """
    try:
        # Verify user has network access
        tenant_info = await enterprise_service.tenant_client.get_tenant(tenant_id)
        if not tenant_info:
            raise HTTPException(status_code=404, detail="Tenant not found")
        if tenant_info.get('tenant_type') != 'parent':
            raise HTTPException(status_code=403, detail="Only parent tenants can access enterprise dashboard")

        result = await enterprise_service.get_enterprise_forecast_summary(
            parent_tenant_id=tenant_id,
            days_ahead=days_ahead
        )
        return result
    except Exception as e:
        logger.error(f"Error getting enterprise forecast summary: {e}", exc_info=True)
        raise HTTPException(status_code=500, detail="Failed to get enterprise forecast summary")


@router.get("/network-performance")
async def get_network_performance_metrics(
    tenant_id: str,
    start_date: Optional[date] = None,
    end_date: Optional[date] = None,
    enterprise_service: EnterpriseDashboardService = Depends(get_enterprise_dashboard_service),
    verified_tenant: str = Depends(verify_tenant_access_dep)
):
    """
    Get aggregated performance metrics across the tenant network
    """
    try:
        # Verify user has network access
        tenant_info = await enterprise_service.tenant_client.get_tenant(tenant_id)
        if not tenant_info:
            raise HTTPException(status_code=404, detail="Tenant not found")
        if tenant_info.get('tenant_type') != 'parent':
            raise HTTPException(status_code=403, detail="Only parent tenants can access enterprise dashboard")

        if not start_date:
            start_date = date.today()
        if not end_date:
            end_date = date.today()

        result = await enterprise_service.get_network_performance_metrics(
            parent_tenant_id=tenant_id,
            start_date=start_date,
            end_date=end_date
        )
        return result
    except Exception as e:
        logger.error(f"Error getting network performance metrics: {e}", exc_info=True)
        raise HTTPException(status_code=500, detail="Failed to get network performance metrics")