"""
API endpoints pour les badges
"""
from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session
from typing import List, Optional
from datetime import datetime

from app.database import get_db
from app.models.badge import Badge, UserBadge
from app.models.user import User
from app.schemas.badge import (
    BadgeResponse,
    BadgeListResponse,
    BadgeCheckResponse,
    UserBadgeResponse,
    UserBadgeListResponse,
    BadgeUnlockRequest,
)
from app.services.badge_service import BadgeService

router = APIRouter()


@router.get("/", response_model=BadgeListResponse)
def get_all_badges(
    db: Session = Depends(get_db),
    user_id: Optional[int] = None,
):
    """
    Récupère tous les badges disponibles
    - Indique les badges débloqués par l'utilisateur si user_id est fourni
    - Retourne les critères de débloquage
    """
    # Récupérer tous les badges
    badges = db.query(Badge).all()

    # Si user_id est fourni, récupérer les badges débloqués
    unlocked_badge_ids = set()
    if user_id:
        unlocked_badges = db.query(UserBadge).filter(UserBadge.user_id == user_id).all()
        unlocked_badge_ids = set(ub.badge_id for ub in unlocked_badges)

    # Formater la réponse
    badge_responses = []
    for badge in badges:
        badge_responses.append(
            BadgeResponse(
                id=badge.id,
                badgeId=badge.badge_id,
                name=badge.name,
                description=badge.description,
                icon=badge.icon,
                category=badge.category,
                criteriaType=badge.criteria_type,
                criteriaValue=badge.criteria_value,
                criteriaDescription=badge.criteria_description,
                rarity=badge.rarity,
                points=badge.points,
                createdAt=badge.created_at.isoformat(),
                unlocked=badge.badge_id in unlocked_badge_ids if user_id else None,
            )
        )

    return BadgeListResponse(
        data=badge_responses,
        meta={
            "count": len(badge_responses),
            "timestamp": datetime.utcnow().isoformat(),
            "version": "v1"
        }
    )


@router.post("/check", response_model=BadgeCheckResponse)
def check_badges(
    request: BadgeUnlockRequest,
    db: Session = Depends(get_db),
):
    """
    Vérifie et débloque les nouveaux badges pour un utilisateur
    - Vérifie les critères de badges de l'utilisateur
    - Débloque les nouveaux badges atteints
    - Retourne les badges débloqués
    - Envoie les notifications
    """
    # Vérifier que l'utilisateur existe
    user = db.query(User).filter(User.id == request.userId).first()
    if not user:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Utilisateur non trouvé"
        )

    # Utiliser le service pour vérifier et débloquer les badges
    badge_service = BadgeService(db)
    result = badge_service.check_and_unlock_badges(request.userId)

    return BadgeCheckResponse(
        data={
            "new_badges": result["new_badges"],
            "total_badges": result["total_badges"],
            "message": result["message"],
        },
        meta={
            "timestamp": datetime.utcnow().isoformat(),
            "version": "v1"
        }
    )


@router.get("/users/{user_id}", response_model=UserBadgeListResponse)
def get_user_badges(
    user_id: int,
    db: Session = Depends(get_db),
):
    """
    Récupère tous les badges débloqués par un utilisateur
    """
    # Vérifier que l'utilisateur existe
    user = db.query(User).filter(User.id == user_id).first()
    if not user:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Utilisateur non trouvé"
        )

    # Récupérer les badges débloqués
    user_badges = db.query(UserBadge).filter(UserBadge.user_id == user_id).all()

    # Formater la réponse
    badge_responses = []
    for user_badge in user_badges:
        badge = db.query(Badge).filter(Badge.id == user_badge.badge_id).first()
        if badge:
            badge_responses.append(
                UserBadgeResponse(
                    id=user_badge.id,
                    userId=user_badge.user_id,
                    badgeId=user_badge.badge_id,
                    unlockedAt=user_badge.unlocked_at.isoformat(),
                    badge={
                        "id": badge.id,
                        "badgeId": badge.badge_id,
                        "name": badge.name,
                        "description": badge.description,
                        "icon": badge.icon,
                        "category": badge.category,
                        "criteriaType": badge.criteria_type,
                        "criteriaValue": badge.criteria_value,
                        "criteriaDescription": badge.criteria_description,
                        "rarity": badge.rarity,
                        "points": badge.points,
                        "createdAt": badge.created_at.isoformat(),
                    }
                )
            )

    return UserBadgeListResponse(
        data={"badges": badge_responses},
        meta={
            "count": len(badge_responses),
            "timestamp": datetime.utcnow().isoformat(),
            "version": "v1"
        }
    )