import { BaseSchema } from '@adonisjs/lucid/schema'
import env from '#start/env'

/**
 * pending_releases (REBUILD.md decision f, 2026-10-26): nothing enters the catalog without a usable name. A release
 * the window closed on whose files all have random names is written here instead of releases: its keys (as the
 * catalog would store them), its counts and article span, the upload tool from its message-id (with the group its
 * signature), and its probe targets by effort (the edge's candidates: a par2, an archive start, a lone file, a 7z
 * tail), no chunk. The pending ladder probes them cheapest first and moves a named one into the catalog, reading its
 * segments again from the corpus or the server; a signature that names nothing is discarded. On CHUNK_TABLESPACE
 * (the HDD): written once, read by the ladder, never by search.
 */
export default class extends BaseSchema {
  async up() {
    this.schema.raw(`
      CREATE TABLE pending_releases (
        -- lib/release/keys.ts: the identity, the group and the first article; the identity alone.
        release_key bytea PRIMARY KEY,
        identity_key bytea NOT NULL,
        group_id integer NOT NULL,
        -- The stem or post the edge keyed it by (a random name: no release name, but the inner-stem merge's handle).
        name varchar(255) NOT NULL,
        poster text,
        posted_at timestamptz,
        last_posted_at timestamptz,
        first_article bigint NOT NULL,
        last_article bigint NOT NULL,
        files integer NOT NULL DEFAULT 0,
        segments bigint NOT NULL DEFAULT 0,
        bytes bigint NOT NULL DEFAULT 0,
        -- A file misses parts.
        partial boolean NOT NULL DEFAULT false,
        -- False: a tail release still open; a later chunk of its key adds its counts up.
        finished boolean NOT NULL DEFAULT true,
        -- lib/rules uploadTool: ngPost, nyuu, hex32, random, other, …
        tool varchar(16) NOT NULL,
        -- [{kind, messageId, file}] by effort (lib/edge ProbeCandidate); empty: nothing to read, only a signature.
        candidates jsonb NOT NULL DEFAULT '[]',
        -- 0 waiting, 1 named (in the catalog), 2 discarded (its signature's verdict, or every probe gave nothing).
        status smallint NOT NULL DEFAULT 0,
        tries smallint NOT NULL DEFAULT 0,
        created_at timestamptz NOT NULL DEFAULT now(),
        probed_at timestamptz
      )`)
    // The ladder's order: a group's and tool's waiting releases, oldest first.
    this.schema.raw(
      `CREATE INDEX pending_releases_ladder_idx ON pending_releases (group_id, tool, status, created_at)`
    )
    const hdd = env.get('CHUNK_TABLESPACE')
    if (hdd) {
      this.schema.raw(`ALTER TABLE pending_releases SET TABLESPACE ${hdd}`)
      this.schema.raw(`ALTER INDEX pending_releases_pkey SET TABLESPACE ${hdd}`)
      this.schema.raw(`ALTER INDEX pending_releases_ladder_idx SET TABLESPACE ${hdd}`)
    }
  }

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