import { BaseSchema } from '@adonisjs/lucid/schema'

/**
 * NZBs posted to Usenet are read into releases (CONCEPT.md D26): the archive
 * password they may carry, and a lookup of files by their first segment.
 */
export default class extends BaseSchema {
  async up() {
    this.schema.alterTable('releases', (table) => {
      // From <meta type="password"> of a posted NZB; passed on in our NZBs.
      table.text('password')
    })
    this.defer(async (db) => {
      await db.rawQuery(`CREATE INDEX IF NOT EXISTS files_first_segment_idx ON files ((message_ids->'1'->>'id'))`)
    })
  }

  async down() {
    this.defer(async (db) => {
      await db.rawQuery('DROP INDEX IF EXISTS files_first_segment_idx')
    })
    this.schema.alterTable('releases', (table) => table.dropColumn('password'))
  }
}