"use strict";

/** @type {import('sequelize-cli').Migration} */
module.exports = {
  async up(queryInterface) {
    await queryInterface.removeColumn("group_users", "deletedAt");

    // Cleanup any rows with duplicate groupId + userId
    await queryInterface.sequelize.query(`
      DELETE FROM group_users
      WHERE "createdAt" NOT IN (
        SELECT MIN("createdAt")
        FROM group_users
        GROUP BY "groupId", "userId"
      )
    `);

    // Add groupId + userId as primary key
    await queryInterface.addConstraint("group_users", {
      fields: ["groupId", "userId"],
      type: "primary key",
      name: "group_users_pkey",
    });

    await queryInterface.removeIndex(
      "group_users",
      "group_users_group_id_user_id"
    );
  },

  async down(queryInterface, Sequelize) {
    await queryInterface.addIndex("group_users", ["groupId", "userId"]);
    await queryInterface.removeConstraint("group_users", "group_users_pkey");
    await queryInterface.addColumn("group_users", "deletedAt", {
      type: Sequelize.DATE,
      allowNull: true,
    });
  },
};