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

/**
 * What a probed article showed, by message-id (app/services/prober.ts): an
 * article's inspection doesn't depend on the grouping rules, so a catalog
 * reset (which empties the probe queue) needn't read it from the news server
 * again. `version` is PROBE_VERSION when it was inspected: a change to the
 * inspection makes older rows stale. Not truncated by a reset.
 */
export default class extends BaseSchema {
  async up() {
    this.schema.raw(`
      CREATE TABLE probe_cache (
        message_id text PRIMARY KEY,
        status varchar(8) NOT NULL,
        result jsonb,
        version integer NOT NULL,
        created_at timestamptz NOT NULL DEFAULT now()
      )`)
  }

  async down() {
    this.schema.raw(`DROP TABLE IF EXISTS probe_cache`)
  }
}