import { Kysely, sql } from 'kysely';

export async function up(db: Kysely<any>): Promise<void> {
  await db.schema
    .createTable('group_users')
    .addColumn('id', 'uuid', (col) =>
      col.primaryKey().defaultTo(sql`gen_random_uuid()`),
    )
    .addColumn('userId', 'uuid', (col) =>
      col.references('users.id').onDelete('cascade').notNull(),
    )
    .addColumn('groupId', 'uuid', (col) =>
      col.references('groups.id').onDelete('cascade').notNull(),
    )
    .addColumn('createdAt', 'timestamp', (col) =>
      col.notNull().defaultTo(sql`now()`),
    )
    .addColumn('updatedAt', 'timestamp', (col) =>
      col.notNull().defaultTo(sql`now()`),
    )
    .addUniqueConstraint('group_users_groupId_userId_unique', [
      'groupId',
      'userId',
    ])
    .execute();
}

export async function down(db: Kysely<any>): Promise<void> {
  await db.schema
    .alterTable('group_users')
    .dropConstraint('group_users_userId_fkey')
    .execute();

  await db.schema
    .alterTable('group_users')
    .dropConstraint('group_users_groupId_fkey')
    .execute();

  await db.schema.dropTable('group_users').execute();
}