from datetime import datetime

from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session

from ..auth import get_current_user
from ..database import get_db
from ..models import Character
from ..schemas import CharacterCreate, CharacterResponse, CharacterUpdate

router = APIRouter(
    prefix="/api/characters",
    tags=["characters"],
    dependencies=[Depends(get_current_user)],
)


@router.get("/", response_model=list[CharacterResponse])
def list_characters(db: Session = Depends(get_db)):
    return db.query(Character).order_by(Character.created_at.desc()).all()


@router.get("/{character_id}", response_model=CharacterResponse)
def get_character(character_id: int, db: Session = Depends(get_db)):
    character = db.query(Character).filter(Character.id == character_id).first()
    if not character:
        raise HTTPException(status_code=404, detail="Character not found")
    return character


@router.post("/", response_model=CharacterResponse, status_code=201)
def create_character(data: CharacterCreate, db: Session = Depends(get_db)):
    character = Character(**data.model_dump())
    db.add(character)
    db.commit()
    db.refresh(character)
    return character


@router.put("/{character_id}", response_model=CharacterResponse)
def update_character(
    character_id: int, data: CharacterUpdate, db: Session = Depends(get_db)
):
    character = db.query(Character).filter(Character.id == character_id).first()
    if not character:
        raise HTTPException(status_code=404, detail="Character not found")
    update_data = data.model_dump(exclude_unset=True)
    for key, value in update_data.items():
        setattr(character, key, value)
    character.updated_at = datetime.utcnow()
    db.commit()
    db.refresh(character)
    return character


@router.delete("/{character_id}", status_code=204)
def delete_character(character_id: int, db: Session = Depends(get_db)):
    character = db.query(Character).filter(Character.id == character_id).first()
    if not character:
        raise HTTPException(status_code=404, detail="Character not found")
    db.delete(character)
    db.commit()