from __future__ import annotations

from datetime import datetime

from sqlalchemy import (
    BigInteger,
    Boolean,
    DateTime,
    Enum,
    ForeignKey,
    Integer,
    String,
    Text,
    func,
)
from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column, relationship


class Base(DeclarativeBase):
    pass


CAR_TABLE_NAME = "iaai_cars"
IMAGE_TABLE_NAME = "iaai_images"
SYNC_RUN_TABLE_NAME = "iaai_sync_runs"


CURRENCY_ENUM_VALUES = ("JPY", "USD", "EUR", "RUB", "KRW", "AED", "GBP", "CAD")
DRIVE_ENUM_VALUES = ("FWD", "RWD", "TWO_WD", "FOUR_WD", "2WD", "4WD", "NA")
GEARBOX_ENUM_VALUES = ("AT", "CVT", "MT", "EV", "NA")
STEERING_WHEEL_ENUM_VALUES = ("LEFT", "RIGHT", "left", "right", "NA")
BODY_TYPE_ENUM_VALUES = (
    "COUPE",
    "SUV",
    "HATCHBACK",
    "MINIVAN",
    "SEDAN",
    "NA",
    "Station Wagon",
    "Pickup",
    "Truck",
    "Open",
    "RV",
    "Other",
    "STATION_WAGON",
    "PICKUP",
    "TRUCK",
    "OPEN",
    "OTHER",
)
COUNTRY_ENUM_VALUES = ("JP", "KR", "US", "CA", "NA")
ORIGIN_ENUM_VALUES = (
    "TAU",
    "CARSENSOR",
    "HANAMARU",
    "ENCAR",
    "KURUMA_TRADER",
    "carsensor",
    "encar",
    "kuruma_trader",
    "asnet",
    "kababa",
    "ACV",
    "COPART",
    "IAAI",
    "copart",
    "iaai",
    "NA",
    "ASNET",
    "KABABA",
)
SELLING_TYPE_ENUM_VALUES = ("STOCK", "AUCTION", "TENDER", "stock", "auction", "tender", "NA")


class Car(Base):
    __tablename__ = CAR_TABLE_NAME

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    parser_id: Mapped[str] = mapped_column(String(50), nullable=False, unique=True)
    brand: Mapped[str] = mapped_column(String(50), nullable=False)
    model: Mapped[str] = mapped_column(String(50), nullable=False)
    year: Mapped[int | None] = mapped_column(Integer, nullable=True)
    price: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    currency: Mapped[str] = mapped_column(
        Enum(
            *CURRENCY_ENUM_VALUES,
            name="currencyenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=False,
        default="USD",
    )
    mileage: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    country: Mapped[str] = mapped_column(
        Enum(
            *COUNTRY_ENUM_VALUES,
            name="countryenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=False,
        default="NA",
    )
    is_sold: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    color: Mapped[str] = mapped_column(String(), nullable=False, default="other")
    drive: Mapped[str | None] = mapped_column(
        Enum(
            *DRIVE_ENUM_VALUES,
            name="driveenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=True,
    )
    gearbox: Mapped[str | None] = mapped_column(
        Enum(
            *GEARBOX_ENUM_VALUES,
            name="gearboxenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=True,
    )
    steering_wheel: Mapped[str | None] = mapped_column(
        Enum(
            *STEERING_WHEEL_ENUM_VALUES,
            name="steeringwheelenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=True,
    )
    body_type: Mapped[str] = mapped_column(
        Enum(
            *BODY_TYPE_ENUM_VALUES,
            name="bodytypeenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=False,
        default="OTHER",
    )
    engine_volume: Mapped[int | None] = mapped_column(Integer, nullable=True)
    selling_type: Mapped[str] = mapped_column(
        Enum(
            *SELLING_TYPE_ENUM_VALUES,
            name="sellingtypeenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=False,
        default="NA",
    )
    one_owner: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    new_car: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    is_hidden: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    origin: Mapped[str] = mapped_column(
        Enum(
            *ORIGIN_ENUM_VALUES,
            name="originenum",
            native_enum=True,
            create_constraint=False,
        ),
        nullable=False,
        default="NA",
    )
    origin_url: Mapped[str] = mapped_column(String(), nullable=False)
    origin_id: Mapped[str] = mapped_column(String(), nullable=False, unique=True)
    is_damaged: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    evaluation: Mapped[str | None] = mapped_column(String(), nullable=True)
    non_smoking: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    rental: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    repair_history: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    slug: Mapped[str] = mapped_column(String(), nullable=False)
    last_seen_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=func.now())

    images: Mapped[list["Image"]] = relationship(
        "Image",
        back_populates="car",
        cascade="all, delete-orphan",
    )


class Image(Base):
    __tablename__ = IMAGE_TABLE_NAME

    id: Mapped[int] = mapped_column(
        BigInteger().with_variant(Integer, "sqlite"),
        primary_key=True,
        autoincrement=True,
    )
    fullres_image: Mapped[str] = mapped_column(String(), nullable=False)
    preview_image: Mapped[str] = mapped_column(String(), nullable=False)
    order_index: Mapped[int] = mapped_column(Integer, nullable=False)
    car_id: Mapped[int] = mapped_column(
        Integer,
        ForeignKey(f"{CAR_TABLE_NAME}.id", ondelete="CASCADE"),
        nullable=False,
    )

    car: Mapped[Car] = relationship("Car", back_populates="images")


class SyncRun(Base):
    __tablename__ = SYNC_RUN_TABLE_NAME

    id: Mapped[int] = mapped_column(
        BigInteger().with_variant(Integer, "sqlite"),
        primary_key=True,
        autoincrement=True,
    )
    started_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=func.now())
    finished_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    status: Mapped[str] = mapped_column(Text, nullable=False)
    lane: Mapped[str] = mapped_column(Text, nullable=False)
    ids_fetched: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    cars_upserted: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    cars_failed: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    images_upserted: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    error_summary: Mapped[str | None] = mapped_column(Text, nullable=True)