from sqlalchemy import Column, Integer, String, Text, ForeignKey, DateTime, func
from sqlalchemy.orm import relationship
from .database import Base


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, autoincrement=True)
    username = Column(String(50), unique=True, nullable=False, index=True)
    password_hash = Column(String(255), nullable=False)
    role = Column(String(20), nullable=False, default="user")
    created_at = Column(DateTime(timezone=True), server_default=func.now())


class Serie(Base):
    __tablename__ = "series"

    id = Column(Integer, primary_key=True, autoincrement=True)
    name = Column(String(200), unique=True, nullable=False)          # "Sword & Shield"
    description = Column(Text, nullable=True)
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    sets = relationship("Set", back_populates="serie", cascade="all, delete-orphan",
                        order_by="Set.code")


class Set(Base):
    __tablename__ = "sets"

    id = Column(Integer, primary_key=True, autoincrement=True)
    serie_id = Column(Integer, ForeignKey("series.id", ondelete="CASCADE"), nullable=False, index=True)
    code = Column(String(10), unique=True, nullable=False, index=True)  # "EVS"
    name = Column(String(200), nullable=False)                       # "Evolving Skies"
    release_date = Column(String(20), nullable=True)
    description = Column(Text, nullable=True)
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    serie = relationship("Serie", back_populates="sets")
    cards = relationship("Card", back_populates="set", cascade="all, delete-orphan",
                         order_by="Card.number")


class Card(Base):
    __tablename__ = "cards"

    id = Column(Integer, primary_key=True, autoincrement=True)
    set_id = Column(Integer, ForeignKey("sets.id", ondelete="CASCADE"), nullable=False, index=True)
    number = Column(String(10), nullable=False)                      # "050"
    name = Column(String(200), nullable=False)                       # "Raichu"
    image_path = Column(String(500), nullable=True)                  # URL eller sti "images/.../050.jpg"

    set = relationship("Set", back_populates="cards")

    @property
    def full_code(self):
        return f"{self.set.code}-{self.number}"

    @property
    def image_url(self):
        """Returner URL'en for visning — absolut URL eller /static/ relativ sti."""
        if not self.image_path:
            return None
        if self.image_path.startswith(("http://", "https://")):
            return self.image_path
        return f"/static/{self.image_path}"