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

/**
 * release_texts (REBUILD.md, "Voyager 3 … Schema"): every string search matches against, one table, one trigram
 * index. The release name goes in (kind 1) with whatever anyone learns later: the prober's file names inside an
 * archive, NFO titles, par2 set names, media titles (lib/release/text_kind.ts). Appending is an insert, never an
 * update of the wide releases row; a repeat insert is a no-op by the primary key; the judge's dirty mark follows
 * (judge_dirty_by_release_id, migration 4900), so a rule can react to a name arriving later. On the NVMe: search
 * reads it. releases keeps name and inner_name for display, without trigram indexes (migration 6000).
 */
export default class extends BaseSchema {
  async up() {
    this.schema.raw(`
      CREATE TABLE release_texts (
        release_id bigint NOT NULL,
        -- lib/release/text_kind.ts: 1 name, 2 file, 3 nfo, 4 par2, 5 media.
        kind smallint NOT NULL,
        text varchar(255) NOT NULL,
        PRIMARY KEY (release_id, kind, text)
      )`)
    this.schema.raw(
      `CREATE INDEX release_texts_trgm ON release_texts USING gin (text gin_trgm_ops) WITH (fastupdate = on, gin_pending_list_limit = 65536)`
    )
    this.schema.raw(
      `CREATE TRIGGER judge_dirty_insert AFTER INSERT ON release_texts REFERENCING NEW TABLE AS new_rows FOR EACH STATEMENT EXECUTE FUNCTION judge_dirty_by_release_id()`
    )
    this.schema.raw(
      `CREATE TRIGGER judge_dirty_delete AFTER DELETE ON release_texts REFERENCING OLD TABLE AS old_rows FOR EACH STATEMENT EXECUTE FUNCTION judge_dirty_by_release_id()`
    )
  }

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