# shop.py - Keep basic format validation, remove business logic
import re
from datetime import datetime
from typing import List, Optional
from pydantic import BaseModel, ConfigDict, Field, field_validator
from models.schemas.product import ProductResponse

class ShopCreate(BaseModel):
    shop_code: str = Field(..., description="Unique shop identifier")
    shop_name: str = Field(..., description="Display name of the shop")
    description: Optional[str] = Field(None, description="Shop description")
    contact_email: Optional[str] = None
    contact_phone: Optional[str] = None
    website: Optional[str] = None
    business_address: Optional[str] = None
    tax_number: Optional[str] = None
    # Removed: min_length, max_length constraints - let service handle

    @field_validator("contact_email")
    @classmethod
    def validate_contact_email(cls, v):
        # Keep basic format validation for data integrity
        if v and ("@" not in v or "." not in v):
            raise ValueError("Invalid email format")
        return v.lower() if v else v

class ShopUpdate(BaseModel):
    shop_name: Optional[str] = None
    description: Optional[str] = None
    contact_email: Optional[str] = None
    contact_phone: Optional[str] = None
    website: Optional[str] = None
    business_address: Optional[str] = None
    tax_number: Optional[str] = None

    @field_validator("contact_email")
    @classmethod
    def validate_contact_email(cls, v):
        if v and ("@" not in v or "." not in v):
            raise ValueError("Invalid email format")
        return v.lower() if v else v

class ShopResponse(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: int
    shop_code: str
    shop_name: str
    description: Optional[str]
    owner_id: int
    contact_email: Optional[str]
    contact_phone: Optional[str]
    website: Optional[str]
    business_address: Optional[str]
    tax_number: Optional[str]
    is_active: bool
    is_verified: bool
    created_at: datetime
    updated_at: datetime

class ShopListResponse(BaseModel):
    shops: List[ShopResponse]
    total: int
    skip: int
    limit: int

class ShopProductCreate(BaseModel):
    product_id: str = Field(..., description="Product ID to add to shop")
    shop_product_id: Optional[str] = None
    shop_price: Optional[float] = None  # Removed: ge=0 constraint
    shop_sale_price: Optional[float] = None  # Removed: ge=0 constraint
    shop_currency: Optional[str] = None
    shop_availability: Optional[str] = None
    shop_condition: Optional[str] = None
    is_featured: bool = Field(False, description="Featured product flag")
    min_quantity: int = Field(1, description="Minimum order quantity")
    max_quantity: Optional[int] = None  # Removed: ge=1 constraint
    # Service will validate price ranges and quantity logic

class ShopProductResponse(BaseModel):
    model_config = ConfigDict(from_attributes=True)
    id: int
    shop_id: int
    product: ProductResponse
    shop_product_id: Optional[str]
    shop_price: Optional[float]
    shop_sale_price: Optional[float]
    shop_currency: Optional[str]
    shop_availability: Optional[str]
    shop_condition: Optional[str]
    is_featured: bool
    is_active: bool
    min_quantity: int
    max_quantity: Optional[int]
    created_at: datetime
    updated_at: datetime