from sqlalchemy import Column, Integer, String, Date, ForeignKey, Index
from sqlalchemy.orm import relationship

from app.database import Base


class Committee(Base):
    __tablename__ = "committees"

    id = Column(Integer, primary_key=True, autoincrement=True)
    committee_code = Column(String(20), unique=True, nullable=False)
    name = Column(String(500))
    chamber = Column(String(10))
    committee_type = Column(String(50))  # Standing, Select, Joint, etc.

    committee_bills = relationship("CommitteeBill", back_populates="committee")


class CommitteeBill(Base):
    __tablename__ = "committee_bills"

    id = Column(Integer, primary_key=True, autoincrement=True)
    committee_id = Column(Integer, ForeignKey("committees.id", ondelete="CASCADE"), nullable=False)
    bill_id = Column(String, ForeignKey("bills.bill_id", ondelete="CASCADE"), nullable=False)
    referral_date = Column(Date)

    committee = relationship("Committee", back_populates="committee_bills")
    bill = relationship("Bill", back_populates="committee_bills")

    __table_args__ = (
        Index("ix_committee_bills_bill_id", "bill_id"),
        Index("ix_committee_bills_committee_id", "committee_id"),
    )