from pydantic import BaseModel
from typing import Optional, List, Any
from datetime import datetime
from decimal import Decimal


# CarSpecification Schema
class CarSpecificationResponse(BaseModel):
    id: int
    car_id: int
    manufacturer: Optional[str] = None
    model_name: Optional[str] = None
    grade: Optional[str] = None
    model_year: Optional[str] = None
    displacement: Optional[int] = None
    fuel_type: Optional[str] = None
    transmission: Optional[str] = None
    drive_type: Optional[str] = None
    max_power: Optional[str] = None
    max_torque: Optional[str] = None
    fuel_efficiency: Optional[str] = None
    body_type: Optional[str] = None
    door_count: Optional[int] = None
    seating_capacity: Optional[int] = None
    length: Optional[int] = None
    width: Optional[int] = None
    height: Optional[int] = None
    wheelbase: Optional[int] = None
    curb_weight: Optional[int] = None
    safety_options: Optional[List[str]] = None
    comfort_options: Optional[List[str]] = None
    exterior_options: Optional[List[str]] = None
    interior_options: Optional[List[str]] = None
    raw_data: Optional[Any] = None

    class Config:
        from_attributes = True


# CarMaker Schemas
class CarMakerCreate(BaseModel):
    code: str
    name: str
    name_en: Optional[str] = None


class CarMakerResponse(BaseModel):
    id: int
    code: str
    name: str
    name_en: Optional[str] = None

    class Config:
        from_attributes = True


# CarModel Schemas
class CarModelCreate(BaseModel):
    code: str
    maker_id: int
    name: str
    name_en: Optional[str] = None


class CarModelResponse(BaseModel):
    id: int
    code: str
    maker_id: int
    name: str
    name_en: Optional[str] = None

    class Config:
        from_attributes = True


# CarImage Schemas
class CarImageCreate(BaseModel):
    url: Optional[str] = None
    local_path: Optional[str] = None
    is_main: bool = False
    sort_order: int = 0


class CarImageResponse(BaseModel):
    id: int
    url: Optional[str] = None
    local_path: Optional[str] = None
    is_main: bool
    sort_order: int

    class Config:
        from_attributes = True


# Car Schemas
class CarCreate(BaseModel):
    source: str = "carmodoo"
    source_id: str
    source_key: Optional[str] = None
    maker_code: Optional[str] = None
    model_code: Optional[str] = None
    car_name: Optional[str] = None
    year: Optional[int] = None
    month: Optional[int] = None
    mileage: Optional[int] = None
    price_krw: Optional[int] = None
    price_usd: Optional[Decimal] = None
    fuel: Optional[str] = None
    transmission: Optional[str] = None
    color: Optional[str] = None
    displacement: Optional[int] = None
    car_number: Optional[str] = None
    seize_count: int = 0
    collateral_count: int = 0
    check_num: Optional[str] = None
    dealer_name: Optional[str] = None
    dealer_phone: Optional[str] = None
    shop_name: Optional[str] = None
    memo: Optional[str] = None
    images: List[CarImageCreate] = []
    options: List[str] = []


class CarUpdate(BaseModel):
    car_name: Optional[str] = None
    year: Optional[int] = None
    month: Optional[int] = None
    mileage: Optional[int] = None
    price_krw: Optional[int] = None
    margin_krw: Optional[int] = None
    margin_mn: Optional[int] = None
    price_usd: Optional[Decimal] = None
    fuel: Optional[str] = None
    transmission: Optional[str] = None
    color: Optional[str] = None
    status: Optional[str] = None
    is_displayed: Optional[bool] = None
    is_banner: Optional[bool] = None
    soldout: Optional[bool] = None


class CarResponse(BaseModel):
    id: int
    source: str
    source_id: str
    car_name: Optional[str] = None
    year: Optional[int] = None
    month: Optional[int] = None
    mileage: Optional[int] = None
    price_krw: Optional[int] = None
    margin_krw: Optional[int] = 0
    margin_mn: Optional[int] = 0
    final_price_krw: Optional[int] = None  # Computed: price_krw + margin_krw (for Korean users)
    final_price_mn: Optional[int] = None   # Computed: price_krw + margin_mn (for Mongolian users)
    price_usd: Optional[Decimal] = None
    is_displayed: bool = False
    is_banner: bool = False
    soldout: bool = False
    fuel: Optional[str] = None
    transmission: Optional[str] = None
    color: Optional[str] = None
    displacement: Optional[int] = None
    car_number: Optional[str] = None
    seize_count: int
    collateral_count: int
    check_num: Optional[str] = None
    dealer_name: Optional[str] = None
    dealer_description: Optional[str] = None
    dealer_description_en: Optional[str] = None
    dealer_description_mn: Optional[str] = None
    dealer_description_ru: Optional[str] = None
    status: str
    created_at: datetime
    updated_at: datetime

    maker: Optional[CarMakerResponse] = None
    model: Optional[CarModelResponse] = None
    images: List[CarImageResponse] = []
    specification: Optional[CarSpecificationResponse] = None

    class Config:
        from_attributes = True


class CarListResponse(BaseModel):
    total: int
    page: int
    page_size: int
    cars: List[CarResponse]