gradido/database/src/prepare.ts

/* PREPARE SCRIPT
 *
 * This file ensures operations our migration library
 * can not take care of are done.
 * This applies to all Database Operations like
 * creating, deleting, renaming Databases.
 */

import { createConnection } from 'mysql'
import CONFIG from './config'

export default async (): Promise<void> => {
  const con = createConnection({
    host: CONFIG.DB_HOST,
    port: CONFIG.DB_PORT,
    user: CONFIG.DB_USER,
    password: CONFIG.DB_PASSWORD,
  })

  await con.connect()

  // Create Databse `gradido_community`
  await con.query(`
    CREATE DATABASE IF NOT EXISTS ${CONFIG.DB_DATABASE} 
      DEFAULT CHARACTER SET utf8mb4
      DEFAULT COLLATE utf8mb4_unicode_ci;`)

  // Check if old migration table is present, delete if needed
  await con.query(
    `SHOW COLUMNS FROM \`${CONFIG.DB_DATABASE}\`.\`migrations\` LIKE 'version';`,
    (err, result /* , fields */) => {
      if (err) throw err
      if (result.length > 0) {
        con.query(`DROP TABLE \`${CONFIG.DB_DATABASE}\`.\`migrations\``)
        // eslint-disable-next-line no-console
        console.log('Found and dropped old migrations table')
      }
    },
  )

  await con.end()
}