from fastapi import APIRouter, Depends, HTTPException
from core.database import fake_users_db
import uuid
from typing import List, Optional

router = APIRouter()

@router.get("/cats")
async def get_cats(
    limit: Optional[int] = 10,
    offset: Optional[int] = 0
):
    """Get list of cats"""
    cats = list(fake_users_db.get("cats", {}).values())
    return {
        "message": "Cats retrieved successfully",
        "data": cats[offset:offset + limit],
        "metadata": {
            "total": len(cats),
            "limit": limit,
            "offset": offset
        }
    }

@router.get("/cats/{cat_id}")
async def get_cat(
    cat_id: str
):
    """Get cat by ID"""
    cat = fake_users_db.get("cats", {}).get(cat_id)
    if not cat:
        raise HTTPException(status_code=404, detail="Cat not found")
    
    return {
        "message": "Cat retrieved successfully",
        "data": cat,
        "metadata": {
            "source": "demo_db",
            "result_count": 1
        }
    }

@router.post("/cats")
async def create_cat(
    name: str,
    breed: str,
    age: int
):
    """Create new cat"""
    cat_id = str(uuid.uuid4())
    
    if "cats" not in fake_users_db:
        fake_users_db["cats"] = {}
        
    new_cat = {
        "id": cat_id,
        "name": name,
        "breed": breed,
        "age": age
    }
    
    fake_users_db["cats"][cat_id] = new_cat
    
    return {
        "message": "Cat created successfully",
        "data": new_cat,
        "next_steps": [
            "Add cat photo",
            "Set feeding schedule"
        ]
    }