"""SQLAlchemy ORM model for card import batches."""
from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Text, JSON
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
from app.core.database import Base


class CardImportBatch(Base):
    """
    Card import batch record.
    
    Tracks a single file import with its status and match results.
    """
    __tablename__ = "card_import_batches"

    id = Column(Integer, primary_key=True, autoincrement=True)
    user_id = Column(Integer, ForeignKey("mtgonline_users.id", ondelete="CASCADE"), nullable=False, index=True)
    filename = Column(String(255), nullable=False)
    file_type = Column(String(10), nullable=False)  # xlsx, csv, json, ods
    file_size = Column(Integer, nullable=False)  # File size in bytes
    status = Column(String(20), nullable=False, default="pending", index=True)  # pending, processing, completed, failed
    total_cards = Column(Integer, default=0)
    matched_cards = Column(Integer, default=0)
    unmatched_cards = Column(Integer, default=0)
    match_results = Column(JSON, nullable=True)  # Store match results for later retrieval
    error_message = Column(Text, nullable=True)
    created_at = Column(DateTime, server_default=func.now())
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())

    # Relationships
    user = relationship("User", backref="import_batches")

    def __repr__(self) -> str:
        return f"<CardImportBatch id={self.id} user={self.user_id} status={self.status}>"


class UserCardImportRecord(Base):
    """
    Confirmed user card import record.
    
    Stores the confirmed state of an imported card collection.
    """
    __tablename__ = "user_card_imports_confirmed"

    id = Column(Integer, primary_key=True, autoincrement=True)
    user_id = Column(Integer, ForeignKey("mtgonline_users.id", ondelete="CASCADE"), nullable=False, index=True)
    batch_id = Column(Integer, ForeignKey("card_import_batches.id", ondelete="CASCADE"), nullable=False, index=True)
    is_confirmed = Column(Boolean, nullable=False, default=True)
    confirmed_at = Column(DateTime, server_default=func.now())

    # Relationships
    user = relationship("User", backref="confirmed_imports")
    batch = relationship("CardImportBatch", backref="confirmations")

    def __repr__(self) -> str:
        return f"<UserCardImportRecord id={self.id} user={self.user_id} confirmed={self.is_confirmed}>"