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

/**
 * The indexed groups (REBUILD.md, group list). `priority` decides a
 * crosspost's owner: the indexed group in its Xref with the lowest number.
 * New groups get numbers after the existing ones, so they never take
 * articles from groups already done.
 */
export default class extends BaseSchema {
  async up() {
    this.schema.createTable('groups', (table) => {
      table.increments('id')
      table.string('name', 255).notNullable().unique()
      table.integer('priority').notNullable().unique()
      table.boolean('active').notNullable().defaultTo(true)
      // From GROUP when planned: the server's oldest and newest article.
      table.bigInteger('low').nullable()
      table.bigInteger('high').nullable()
      table.timestamp('planned_at', { useTz: true }).nullable()
      table.timestamp('created_at', { useTz: true }).notNullable().defaultTo(this.now())
    })
  }

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