from src.extensions import db
import datetime

class Legislation(db.Model):
    __tablename__ = 'legislation'
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String, nullable=False)
    full_text = db.Column(db.Text)
    jurisdiction = db.Column(db.String) # e.g., 'Federal', 'State - CA'
    type = db.Column(db.String) # e.g., 'Statute', 'Regulation', 'Policy'
    status = db.Column(db.String, default='Active') # e.g., 'Active', 'Repealed', 'Amended'
    effective_date = db.Column(db.Date)
    enactment_date = db.Column(db.Date)
    source_url = db.Column(db.String)
    last_updated = db.Column(db.DateTime, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow)
    created_at = db.Column(db.DateTime, default=datetime.datetime.utcnow)

    # Relationships
    drafts = db.relationship('Draft', backref='related_legislation', lazy=True)
    amendments = db.relationship('Amendment', backref='legislation', lazy=True)
    monitored_events = db.relationship('MonitoredEvent', backref='related_legislation', lazy=True)
    recommendations = db.relationship('Recommendation', backref='related_legislation', lazy=True)
    source_cross_references = db.relationship('CrossReference', foreign_keys='CrossReference.source_legislation_id', backref='source_legislation', lazy=True)
    target_cross_references = db.relationship('CrossReference', foreign_keys='CrossReference.target_legislation_id', backref='target_legislation', lazy=True)

    def __repr__(self):
        return f'<Legislation {self.id}: {self.title[:50]}>'