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

/**
 * Indexes for the GC's deletes of finished binaries, without the ones
 * waiting for inspection (LOG.md 2026-10-06 (11)): those can be millions
 * when inspection is behind, and the deletes must not read past them every
 * sweep. Built CONCURRENTLY: binaries takes writes all the time.
 */
export default class extends BaseSchema {
  static disableTransactions = true

  async up() {
    await this.db.rawQuery(
      `CREATE INDEX CONCURRENTLY IF NOT EXISTS binaries_done_last_seen_idx ON binaries (last_seen_at)
       WHERE file_id IS NOT NULL AND awaiting_inspection IS NOT TRUE`
    )
    await this.db.rawQuery(
      `CREATE INDEX CONCURRENTLY IF NOT EXISTS binaries_awaiting_inspection_idx ON binaries (last_seen_at)
       WHERE awaiting_inspection IS TRUE`
    )
    await this.db.rawQuery(
      `CREATE INDEX CONCURRENTLY IF NOT EXISTS binaries_open_last_seen_idx ON binaries (last_seen_at)
       WHERE completed_at IS NULL OR conflicted_at IS NOT NULL`
    )
  }

  async down() {
    await this.db.rawQuery(`DROP INDEX CONCURRENTLY IF EXISTS binaries_open_last_seen_idx`)
    await this.db.rawQuery(`DROP INDEX CONCURRENTLY IF EXISTS binaries_awaiting_inspection_idx`)
    await this.db.rawQuery(`DROP INDEX CONCURRENTLY IF EXISTS binaries_done_last_seen_idx`)
  }
}