"""
Pricing routes for card price tracking and market data
"""

from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session
from pydantic import BaseModel
from typing import List, Optional, Dict
from datetime import datetime

from app.database import get_db
from app.models.card import Card
from app.models.user import User
from app.routers.auth import get_current_user

router = APIRouter()


# Pydantic models
class PriceData(BaseModel):
    card_id: int
    card_name: str
    set_name: Optional[str]
    current_price: Optional[float]
    market_price: Optional[float]
    low_price: Optional[float]
    high_price: Optional[float]
    price_trend: str  # "up", "down", "stable"
    last_updated: datetime


class PriceAlert(BaseModel):
    id: int
    card_id: int
    user_id: int
    target_price: float
    condition: str  # "below", "above"
    is_active: bool


class CollectionValue(BaseModel):
    collection_id: int
    collection_name: str
    total_value: float
    card_count: int
    most_valuable_cards: List[Dict]


# Routes
@router.get("/card/{card_id}", response_model=PriceData)
async def get_card_price(
    card_id: int,
    db: Session = Depends(get_db)
):
    """
    Get current pricing data for a specific card
    """
    card = db.query(Card).filter(Card.id == card_id).first()
    if not card:
        raise HTTPException(status_code=404, detail="Card not found")
    
    # TODO: Implement price fetching from external APIs
    # 1. Check if price data is cached and recent
    # 2. If not, fetch from TCGPlayer, Scryfall, etc.
    # 3. Update card price fields
    # 4. Return current pricing data
    
    return PriceData(
        card_id=card.id,
        card_name=card.name,
        set_name=card.set_name,
        current_price=card.current_price,
        market_price=card.market_price,
        low_price=card.low_price,
        high_price=card.high_price,
        price_trend="stable",
        last_updated=card.price_last_updated or datetime.now()
    )


@router.post("/update-prices")
async def update_card_prices(
    card_ids: Optional[List[int]] = None,
    game: Optional[str] = None,
    force_update: bool = False,
    db: Session = Depends(get_db)
):
    """
    Update price data for specified cards or all cards
    """
    # TODO: Implement bulk price updates
    # 1. Determine which cards need price updates
    # 2. Batch API calls to pricing services
    # 3. Update database with new prices
    # 4. Handle rate limiting and errors gracefully
    
    return {"message": "Price updates not implemented yet"}


@router.get("/collection/{collection_id}/value", response_model=CollectionValue)
async def get_collection_value(
    collection_id: int,
    current_user: User = Depends(get_current_user),
    db: Session = Depends(get_db)
):
    """
    Calculate the total value of a collection
    """
    # TODO: Implement collection valuation
    # 1. Get all cards in collection with quantities
    # 2. Fetch current prices for all cards
    # 3. Calculate total value considering condition modifiers
    # 4. Identify most valuable cards
    
    return CollectionValue(
        collection_id=collection_id,
        collection_name="",
        total_value=0.0,
        card_count=0,
        most_valuable_cards=[]
    )


@router.post("/alerts", response_model=PriceAlert)
async def create_price_alert(
    card_id: int,
    target_price: float,
    condition: str = "below",
    current_user: User = Depends(get_current_user),
    db: Session = Depends(get_db)
):
    """
    Create a price alert for a card
    """
    # TODO: Implement price alerts
    # 1. Create alert record
    # 2. Set up background monitoring
    # 3. Send notifications when conditions are met
    
    return PriceAlert(
        id=0,
        card_id=card_id,
        user_id=current_user.id,
        target_price=target_price,
        condition=condition,
        is_active=True
    )


@router.get("/market-trends/{game}")
async def get_market_trends(
    game: str,
    timeframe: str = "7d",  # 7d, 30d, 90d, 1y
    db: Session = Depends(get_db)
):
    """
    Get market trends for a specific game
    """
    # TODO: Implement market trend analysis
    # 1. Aggregate price data over time
    # 2. Calculate trends and statistics
    # 3. Identify hot cards and market movements
    
    return {"message": "Market trends not implemented yet"}