import bcrypt from 'bcrypt';
import { Op, QueryTypes } from 'sequelize';

import config from '../../config.ts';
import type {
  AdminUserSeedExistingIdRow,
  AdminUserSeedRow,
  SequelizeSeeder,
} from '../../types/index.ts';

const seedUserIds: readonly [string, string, string] = [
  '193bf4b5-9f07-4bd5-9a43-e7e41f3e96af',
  'af5a87be-8f9c-4630-902a-37a60b7005ba',
  '5bc531ab-611f-41f3-9373-b7cc5d09c93d',
];

function createAdminUserRows(): AdminUserSeedRow[] {
  const adminHash = bcrypt.hashSync(
    config.admin_pass,
    config.bcrypt.saltRounds,
  );
  const userHash = bcrypt.hashSync(config.user_pass, config.bcrypt.saltRounds);
  const now = new Date();

  return [
    {
      id: seedUserIds[0],
      firstName: 'Admin',
      email: config.admin_email,
      emailVerified: true,
      provider: config.providers.LOCAL,
      password: adminHash,
      createdAt: now,
      updatedAt: now,
    },
    {
      id: seedUserIds[1],
      firstName: 'John',
      email: 'john@doe.com',
      emailVerified: true,
      provider: config.providers.LOCAL,
      password: userHash,
      createdAt: now,
      updatedAt: now,
    },
    {
      id: seedUserIds[2],
      firstName: 'Client',
      email: 'client@hello.com',
      emailVerified: true,
      provider: config.providers.LOCAL,
      password: userHash,
      createdAt: now,
      updatedAt: now,
    },
  ];
}

const adminUserSeeder: SequelizeSeeder = {
  async up(queryInterface) {
    const existingRows =
      await queryInterface.sequelize.query<AdminUserSeedExistingIdRow>(
        'SELECT "id" FROM "users" WHERE "id" IN (:ids)',
        {
          replacements: { ids: seedUserIds },
          type: QueryTypes.SELECT,
        },
      );
    const existingIds = new Set(existingRows.map((row) => row.id));
    const rowsToInsert = createAdminUserRows().filter(
      (row) => !existingIds.has(row.id),
    );

    if (rowsToInsert.length > 0) {
      await queryInterface.bulkInsert('users', rowsToInsert);
    }
  },

  async down(queryInterface) {
    await queryInterface.bulkDelete(
      'users',
      {
        id: {
          [Op.in]: seedUserIds,
        },
      },
      {},
    );
  },
};

export default adminUserSeeder;