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

/**
 * release_inspections back in the catalog's tablespace (default_tablespace: nvme on homelab), where migration 4600 had
 * moved it to the HDD: the judge's fake rule reads all of it every round, 17–18 min on the HDD, ~3 on the NVMe (LOG.md
 * 2026-10-19 (81)). 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`)
      const target = setting[0].target
      if (!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') <> ?`,
        [target]
      )
      if (rows.length > 0) await db.rawQuery(`ALTER TABLE release_inspections SET TABLESPACE ${target}`)
    })
  }

  async down() {}
}