from __future__ import annotations

from datetime import UTC, datetime
from uuid import uuid4

from sqlalchemy import Boolean, DateTime, Float, ForeignKey, Integer, String, Text, UniqueConstraint
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class ZootechComponent(Base):
    __tablename__ = "zootech_component"
    __table_args__ = (UniqueConstraint("enterprise_id", "id", name="uq_zootech_component_ent_id"),)

    enterprise_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
    name: Mapped[str] = mapped_column(String(100), nullable=False)
    type: Mapped[str] = mapped_column(String(100), nullable=False, default="")
    is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    dry_matter: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    protein: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    energy: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    price: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    external_no: Mapped[int | None] = mapped_column(Integer, nullable=True)
    version: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    content_hash: Mapped[str] = mapped_column(String(64), nullable=False, default="")
    is_deleted: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        default=lambda: datetime.now(UTC),
        onupdate=lambda: datetime.now(UTC),
    )


class ZootechRecipe(Base):
    __tablename__ = "zootech_recipe"
    __table_args__ = (UniqueConstraint("enterprise_id", "id", name="uq_zootech_recipe_ent_id"),)

    enterprise_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
    name: Mapped[str] = mapped_column(String(100), nullable=False)
    heads_per_trip: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    mixing_time: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    trip_percent: Mapped[float] = mapped_column(Float, nullable=False, default=100.0)
    dry_matter_locked: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    unloading_link_broken: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    target_component_id: Mapped[str | None] = mapped_column(String(36), nullable=True)
    ration_type: Mapped[str | None] = mapped_column(String(10), nullable=True)
    version: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    content_hash: Mapped[str] = mapped_column(String(64), nullable=False, default="")
    is_deleted: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    payload_json: Mapped[str | None] = mapped_column(Text, nullable=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        default=lambda: datetime.now(UTC),
        onupdate=lambda: datetime.now(UTC),
    )


class ZootechIngredient(Base):
    __tablename__ = "zootech_ingredient"
    __table_args__ = (UniqueConstraint("enterprise_id", "id", name="uq_zootech_ingredient_ent_id"),)

    enterprise_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
    recipe_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
    component_id: Mapped[str | None] = mapped_column(String(36), nullable=True, index=True)
    name: Mapped[str] = mapped_column(String(100), nullable=False)
    amount: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    weight_per_head: Mapped[float | None] = mapped_column(Float, nullable=True)
    dry_matter: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
    dry_matter_per_head: Mapped[float | None] = mapped_column(Float, nullable=True)
    order: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    version: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    content_hash: Mapped[str] = mapped_column(String(64), nullable=False, default="")
    is_deleted: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        default=lambda: datetime.now(UTC),
        onupdate=lambda: datetime.now(UTC),
    )