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

/**
 * release_inspections' rows on the HDD (pg_default), its indexes staying in the catalog's tablespace (default_tablespace:
 * nvme on homelab). It's the prober's output, appended to and read a release at a time (the judge, the web's release
 * page): 40% of the NVMe's growth while probing, 4.6 GB of it, with the probe backlog needing more than the NVMe had left
 * (LOG.md 2026-10-18 (79)). Homelab moved it by hand (prober, merger and judge stopped); a no-op where it's there
 * already, or without a default tablespace (tests).
 */
export default class extends BaseSchema {
  async up() {
    this.defer(async (db) => {
      const { rows: setting } = await db.rawQuery(`SELECT current_setting('default_tablespace') AS target`)
      if (!setting[0].target) return
      const { rows } = await db.rawQuery(
        `SELECT 1 FROM pg_class c LEFT JOIN pg_tablespace t ON t.oid = c.reltablespace
         WHERE c.relname = 'release_inspections' AND c.relkind = 'r' AND coalesce(t.spcname, 'pg_default') <> 'pg_default'`
      )
      if (rows.length > 0) await db.rawQuery(`ALTER TABLE release_inspections SET TABLESPACE pg_default`)
    })
  }

  async down() {}
}