exports.up = (pgm) => {
  pgm.createTable('trip_invitations', {
    id: { type: 'uuid', primaryKey: true, default: pgm.func('gen_random_uuid()') },
    trip_id: { type: 'uuid', notNull: true, references: 'trips(id)', onDelete: 'CASCADE' },
    email: { type: 'text', notNull: true },
    invited_by_user_id: { type: 'uuid', notNull: true, references: 'users(id)' },
    token_hash: { type: 'text', notNull: true },
    expires_at: { type: 'timestamptz', notNull: true },
    accepted_at: { type: 'timestamptz' },
    created_at: { type: 'timestamptz', notNull: true, default: pgm.func('now()') },
    updated_at: { type: 'timestamptz', notNull: true, default: pgm.func('now()') },
  });
  pgm.addConstraint('trip_invitations', 'trip_invitations_token_hash_key', 'UNIQUE(token_hash)');
  pgm.createIndex('trip_invitations', 'trip_id');
  pgm.sql('CREATE INDEX trip_invitations_lower_email_idx ON trip_invitations (lower(email))');
};

exports.down = (pgm) => {
  pgm.dropTable('trip_invitations');
};