# models/schema/product.py
from datetime import datetime
from typing import List, Optional
from pydantic import BaseModel, ConfigDict, Field
from models.schema.marketplace_product import MarketplaceProductResponse
from models.schema.inventory import InventoryLocationResponse


class ProductCreate(BaseModel):
    marketplace_product_id: int = Field(..., description="MarketplaceProduct ID to add to vendor catalog")
    product_id: Optional[str] = Field(None, description="Vendor's internal SKU/product ID")
    price: Optional[float] = Field(None, ge=0)
    sale_price: Optional[float] = Field(None, ge=0)
    currency: Optional[str] = None
    availability: Optional[str] = None
    condition: Optional[str] = None
    is_featured: bool = False
    min_quantity: int = Field(1, ge=1)
    max_quantity: Optional[int] = Field(None, ge=1)


class ProductUpdate(BaseModel):
    product_id: Optional[str] = None
    price: Optional[float] = Field(None, ge=0)
    sale_price: Optional[float] = Field(None, ge=0)
    currency: Optional[str] = None
    availability: Optional[str] = None
    condition: Optional[str] = None
    is_featured: Optional[bool] = None
    is_active: Optional[bool] = None
    min_quantity: Optional[int] = Field(None, ge=1)
    max_quantity: Optional[int] = Field(None, ge=1)


class ProductResponse(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    id: int
    vendor_id: int
    marketplace_product: MarketplaceProductResponse
    product_id: Optional[str]
    price: Optional[float]
    sale_price: Optional[float]
    currency: Optional[str]
    availability: Optional[str]
    condition: Optional[str]
    is_featured: bool
    is_active: bool
    display_order: int
    min_quantity: int
    max_quantity: Optional[int]
    created_at: datetime
    updated_at: datetime

    # Include inventory summary
    total_inventory: Optional[int] = None
    available_inventory: Optional[int] = None


class ProductDetailResponse(ProductResponse):
    """Product with full inventory details."""
    inventory_locations: List[InventoryLocationResponse] = []


class ProductListResponse(BaseModel):
    products: List[ProductResponse]
    total: int
    skip: int
    limit: int