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

router = APIRouter()

# Simulated book database
fake_books_db = {
    "1": {"id": "1", "title": "Sample Book 1", "author": "Author 1", "year": 2023},
    "2": {"id": "2", "title": "Sample Book 2", "author": "Author 2", "year": 2022},
}

@router.get("/books")
async def get_books(
    skip: int = 0,
    limit: int = 10,
    search: Optional[str] = None
):
    """Get list of books with optional pagination and search"""
    books = list(fake_books_db.values())
    
    if search:
        books = [
            book for book in books 
            if search.lower() in book["title"].lower() or search.lower() in book["author"].lower()
        ]
    
    return {
        "message": "Books retrieved successfully",
        "data": books[skip:skip + limit],
        "metadata": {
            "total": len(books),
            "skip": skip,
            "limit": limit
        }
    }

@router.get("/books/{book_id}")
async def get_book(
    book_id: str
):
    """Get specific book by ID"""
    if book_id not in fake_books_db:
        raise HTTPException(status_code=404, detail="Book not found")
    
    return {
        "message": "Book retrieved successfully",
        "data": fake_books_db[book_id],
        "metadata": {
            "source": "demo_db",
            "result_count": 1
        }
    }