from app import db

# Trophy: Achievements granted to users for performing specific actions
class Trophy(db.Model):
    __tablename__ = 'trophy'

    id = db.Column(db.Integer, primary_key=True)
    # Trophy type (polymorphic discriminator)
    type = db.Column(db.String(20))

    __mapper_args__ = {
        'polymorphic_identity': __tablename__,
        'polymorphic_on': type
    }
    # Standalone properties
    name = db.Column(db.Unicode(64), index=True)

    owners = db.relationship('Member', secondary=lambda: TrophyMember,
        back_populates='trophies')

    def __init__(self, name):
        self.name = name

# Title: Rare trophies that can be displayed along one's name
class Title(Trophy):
    __tablename__ = 'title'
    __mapper_args__ = {'polymorphic_identity': __tablename__}

    id = db.Column(db.Integer, db.ForeignKey('trophy.id'), primary_key=True)
    css = db.Column(db.UnicodeText)

    def __init__(self, name, css):
        self.name = name
        self.css = css


# Many-to-many relation for users earning trophies
TrophyMember = db.Table('trophy_member', db.Model.metadata,
    db.Column('tid', db.Integer, db.ForeignKey('trophy.id')),
    db.Column('uid', db.Integer, db.ForeignKey('member.id')))