import enum
from datetime import datetime
from sqlalchemy import String, Boolean, Enum, DateTime, Integer, Float, ForeignKey, JSON, Text
from sqlalchemy.orm import Mapped, mapped_column
from app.core.database import Base


class DeckMode(str, enum.Enum):
    GENERATE = "generate"
    COMPLETE = "complete"
    CULL = "cull"


class CardSlot(str, enum.Enum):
    CREATURE = "creature"
    INSTANT = "instant"
    SORCERY = "sorcery"
    ENCHANTMENT = "enchantment"
    ARTIFACT = "artifact"
    PLANESWALKER = "planeswalker"
    LAND = "land"
    BATTLE = "battle"


class Deck(Base):
    __tablename__ = "decks"

    id: Mapped[int] = mapped_column(primary_key=True)
    owner_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True)
    name: Mapped[str] = mapped_column(String(200), nullable=False)
    commander: Mapped[str] = mapped_column(String(200), nullable=False)
    description: Mapped[str | None] = mapped_column(Text)
    mode: Mapped[DeckMode] = mapped_column(Enum(DeckMode), nullable=False)
    playstyle: Mapped[str | None] = mapped_column(String(100))
    prefer_owned: Mapped[bool] = mapped_column(Boolean, default=False)
    budget_enabled: Mapped[bool] = mapped_column(Boolean, default=False)
    budget_amount: Mapped[float | None] = mapped_column(Float)
    budget_scope: Mapped[str] = mapped_column(String(20), default="purchase")
    ai_reasoning: Mapped[dict | None] = mapped_column(JSON)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)


class DeckCard(Base):
    __tablename__ = "deck_cards"

    id: Mapped[int] = mapped_column(primary_key=True)
    deck_id: Mapped[int] = mapped_column(ForeignKey("decks.id", ondelete="CASCADE"), nullable=False, index=True)
    scryfall_id: Mapped[str] = mapped_column(String(36), nullable=False)
    card_name: Mapped[str] = mapped_column(String(200), nullable=False)
    slot: Mapped[CardSlot] = mapped_column(Enum(CardSlot), nullable=False)
    quantity: Mapped[int] = mapped_column(Integer, default=1)
    is_owned: Mapped[bool] = mapped_column(Boolean, default=False)
    is_commander: Mapped[bool] = mapped_column(Boolean, default=False)
    ai_reasoning: Mapped[str | None] = mapped_column(Text)
    scryfall_data: Mapped[dict | None] = mapped_column(JSON)