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

/**
 * The release catalog (REBUILD.md, part 4): one row per release, the hot
 * part on fast disk. Updated with aggregates once per batch; the files
 * themselves are in release_chunks.
 */
export default class extends BaseSchema {
  async up() {
    this.schema.createTable('releases', (table) => {
      table.bigIncrements('id')
      table.string('release_key', 40).notNullable().unique()
      table.text('name').notNullable()
      table.string('source', 16).notNullable()
      table.text('poster').nullable()
      table.jsonb('groups').notNullable()
      table.timestamp('posted_at', { useTz: true }).nullable()
      // Files announced by the [i/N] counter, when present.
      table.integer('file_total').nullable()
      table.integer('files').notNullable().defaultTo(0)
      table.bigInteger('segments').notNullable().defaultTo(0)
      table.bigInteger('bytes').notNullable().defaultTo(0)
      table.integer('chunks').notNullable().defaultTo(0)
      table.bigInteger('first_article').nullable()
      table.bigInteger('last_article').nullable()
      table.boolean('readable').notNullable().defaultTo(false)
      table.boolean('has_par2').notNullable().defaultTo(false)
      table.boolean('complete').nullable()
      table.timestamp('settled_at', { useTz: true }).nullable()
      table.timestamp('first_seen_at', { useTz: true }).notNullable().defaultTo(this.now())
      table.timestamp('last_seen_at', { useTz: true }).notNullable().defaultTo(this.now())
    })
    this.schema.raw(`CREATE EXTENSION IF NOT EXISTS pg_trgm`)
    this.schema.raw(`CREATE INDEX releases_name_trgm ON releases USING gin (name gin_trgm_ops)`)
    this.schema.raw(`CREATE INDEX releases_posted_at_idx ON releases (posted_at DESC)`)
  }

  async down() {
    this.schema.dropTable('releases')
  }
}