neiam /gitgud

defmodule GitGud.PullRequests.PrReviewRequest do
  use Ecto.Schema
  import Ecto.Changeset

  alias GitGud.Accounts.User
  alias GitGud.PullRequests.PullRequest

  schema "pr_review_requests" do
    belongs_to :pull_request, PullRequest
    belongs_to :reviewer, User
    belongs_to :requested_by, User

    timestamps(type: :utc_datetime, updated_at: false)
  end

  def changeset(request, attrs) do
    request
    |> cast(attrs, [:pull_request_id, :reviewer_id, :requested_by_id])
    |> validate_required([:pull_request_id, :reviewer_id])
    |> foreign_key_constraint(:reviewer_id)
    |> unique_constraint([:pull_request_id, :reviewer_id],
      name: :pr_review_requests_pull_request_id_reviewer_id_index,
      message: "has already been asked to review"
    )
  end
end