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

/**
 * Segments (articles) of a binary. The primary key makes re-ingesting the
 * same range a no-op.
 */
export default class extends BaseSchema {
  protected tableName = 'parts'

  async up() {
    this.schema.createTable(this.tableName, (table) => {
      table.bigInteger('binary_id').notNullable().references('binaries.id').onDelete('CASCADE')
      table.integer('number').notNullable()
      table.text('message_id').notNullable()
      table.integer('bytes').notNullable()
      table.bigInteger('article_number')
      table.primary(['binary_id', 'number'])
    })
  }

  async down() {
    this.schema.dropTable(this.tableName)
  }
}