defmodule Rsh26pool.Repo.Migrations.CreateVotingTables do
  use Ecto.Migration

  def change do
    create table(:rooms) do
      add :room_number, :string, null: false
      add :name, :string, null: false
      add :votes_per_user, :integer, null: false, default: 3
      add :status, :string, null: false, default: "open"
      add :grouping_mode, :boolean, null: false, default: false
      add :leader_threshold, :integer, null: false, default: 2
      add :closes_at, :utc_datetime
      add :grouped_at, :utc_datetime

      timestamps(type: :utc_datetime)
    end

    create unique_index(:rooms, [:room_number])
    create index(:rooms, [:status])
    create index(:rooms, [:closes_at])

    create table(:participants) do
      add :token, :string, null: false
      add :name, :string, null: false
      add :role, :string, null: false, default: "member"
      add :is_leader, :boolean, null: false, default: false
      add :room_id, references(:rooms, on_delete: :delete_all), null: false
      add :assigned_leader_id, references(:participants, on_delete: :nilify_all)

      timestamps(type: :utc_datetime)
    end

    create unique_index(:participants, [:token])
    create index(:participants, [:room_id])
    create index(:participants, [:assigned_leader_id])

    create table(:ideas) do
      add :text, :string, null: false
      add :room_id, references(:rooms, on_delete: :delete_all), null: false
      add :participant_id, references(:participants, on_delete: :delete_all), null: false

      timestamps(type: :utc_datetime)
    end

    create index(:ideas, [:room_id])
    create index(:ideas, [:participant_id])

    create table(:votes) do
      add :idea_id, references(:ideas, on_delete: :delete_all), null: false
      add :participant_id, references(:participants, on_delete: :delete_all), null: false

      timestamps(type: :utc_datetime)
    end

    create unique_index(:votes, [:idea_id, :participant_id])
    create index(:votes, [:participant_id])
  end
end