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

router = APIRouter()

# Demo items database
fake_items_db = [
    {"id": "1", "name": "Item 1", "description": "First item"},
    {"id": "2", "name": "Item 2", "description": "Second item"},
    {"id": "3", "name": "Item 3", "description": "Third item"}
]

@router.post("/items")
async def get_items(
    ids: Optional[List[str]] = None,
    skip: int = 0,
    limit: int = 10
):
    """Get items from array with optional filtering"""
    if ids:
        items = [item for item in fake_items_db if item["id"] in ids]
        if not items:
            raise HTTPException(status_code=404, detail="No items found with provided IDs")
    else:
        items = fake_items_db[skip:skip + limit]
    
    return {
        "message": "Items retrieved successfully",
        "data": {
            "items": items,
            "total": len(items)
        },
        "metadata": {
            "skip": skip,
            "limit": limit,
            "filtered": bool(ids)
        }
    }

@router.post("/items/{item_id}")
async def get_item_by_id(
    item_id: str
):
    """Get single item by ID"""
    item = next((item for item in fake_items_db if item["id"] == item_id), None)
    if not item:
        raise HTTPException(status_code=404, detail="Item not found")
    
    return {
        "message": "Item retrieved successfully",
        "data": item,
        "metadata": {
            "source": "demo_items_db",
            "result_count": 1
        }
    }