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

/**
 * Chunks of a range to fetch without compression: Eweka sends some ranges'
 * compressed XOVER truncated, the same bytes every time, while the plain
 * reply is whole (LOG.md 2026-10-09 (11)). A worker reports such a chunk;
 * its start goes here and the prefetcher fetches it plain.
 */
export default class extends BaseSchema {
  async up() {
    this.schema.raw(`ALTER TABLE ranges ADD COLUMN IF NOT EXISTS plain_chunks bigint[] NOT NULL DEFAULT '{}'`)
    this.schema.raw(`ALTER TABLE ranges ADD COLUMN IF NOT EXISTS error text`)
  }

  async down() {
    this.schema.raw(`ALTER TABLE ranges DROP COLUMN IF EXISTS plain_chunks, DROP COLUMN IF EXISTS error`)
  }
}