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

/**
 * A release is one download: the files of one post (archive volumes, par2
 * set, nfo). See lib/release/release_key.ts and CONCEPT.md (D16).
 */
export default class extends BaseSchema {
  protected tableName = 'releases'

  async up() {
    this.schema.createTable(this.tableName, (table) => {
      table.bigIncrements('id')
      table.string('release_key', 40).notNullable().unique()
      table.text('name').notNullable()
      // Null for obfuscated posts, whose poster is random per article.
      table.text('poster')
      // Number of files announced by the [i/M] subject counter, if any.
      table.integer('file_total')
      table.jsonb('groups').notNullable()
      table.timestamp('posted_at', { useTz: true })
      table.timestamp('first_seen_at', { useTz: true }).notNullable()
      table.timestamp('last_seen_at', { useTz: true }).notNullable()
    })

    this.schema.alterTable('binaries', (table) => {
      table.bigInteger('release_id').references('releases.id').onDelete('SET NULL').index()
    })
    this.schema.alterTable('files', (table) => {
      table.bigInteger('release_id').references('releases.id').onDelete('SET NULL').index()
    })
  }

  async down() {
    this.schema.alterTable('files', (table) => table.dropColumn('release_id'))
    this.schema.alterTable('binaries', (table) => table.dropColumn('release_id'))
    this.schema.dropTable(this.tableName)
  }
}