# frozen_string_literal: true

class CreateRatingTables < ActiveRecord::Migration[5.0]
  def change
    create_table :rating_rates do |t|
      t.decimal :value, default: 0, precision: 25, scale: 16

      t.references :author,    index: true, null: false, polymorphic: true
      t.references :resource,  index: true, null: false, polymorphic: true
      t.references :scopeable, index: true, null: true, polymorphic: true

      t.timestamps null: false
    end

    add_index :rating_rates, %i[author_id author_type resource_id resource_type scopeable_id scopeable_type],
      name:   :index_rating_rates_on_author_and_resource_and_scopeable,
      unique: true

    create_table :rating_ratings do |t|
      t.decimal :average,  default: 0, mull: false, precision: 25, scale: 16
      t.decimal :estimate, default: 0, mull: false, precision: 25, scale: 16
      t.integer :sum,      default: 0, mull: false
      t.integer :total,    default: 0, mull: false

      t.references :resource,  index: true, null: false, polymorphic: true
      t.references :scopeable, index: true, null: true,  polymorphic: true

      t.timestamps null: false
    end

    add_index :rating_ratings, %i[resource_id resource_type scopeable_id scopeable_type],
      name:   :index_rating_rating_on_resource_and_scopeable,
      unique: true
  end
end