"""Project health API endpoints.

Provides endpoints for retrieving project health metrics
and dashboard information.
"""
from typing import Optional
from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session

from app.core.database import get_db
from app.models import User
from app.schemas.project_health import (
    ProjectHealthWithDetails,
    ProjectHealthDashboardResponse,
)
from app.services.health_service import HealthService
from app.middleware.auth import get_current_user

router = APIRouter(prefix="/api/projects/health", tags=["Project Health"])


@router.get("/dashboard", response_model=ProjectHealthDashboardResponse)
async def get_health_dashboard(
    status_filter: Optional[str] = "active",
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """
    Get health dashboard for all projects.

    Returns aggregated health metrics and summary statistics
    for all projects matching the status filter.

    - **status_filter**: Filter projects by status (default: "active")

    Returns:
    - **projects**: List of project health details
    - **summary**: Aggregated summary statistics
    """
    service = HealthService(db)
    return service.get_dashboard(status_filter=status_filter)


@router.get("/{project_id}", response_model=ProjectHealthWithDetails)
async def get_project_health(
    project_id: str,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """
    Get health information for a specific project.

    Returns detailed health metrics including risk level,
    schedule status, resource status, and task statistics.

    - **project_id**: UUID of the project

    Raises:
    - **404**: Project not found
    """
    service = HealthService(db)
    result = service.get_project_health(project_id)

    if not result:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Project not found"
        )

    return result