defmodule MishkaInstaller.Database.DependencySchema do
  @moduledoc """
  This module has been implemented to create the `Dependencies` table schema.
  """
  use Ecto.Schema

  import Ecto.Changeset
  @primary_key {:id, :binary_id, autogenerate: true}
  @foreign_key_type :binary_id

  schema "dependencies" do
    field(:app, :string)
    field(:version, :string)
    field(:type, MishkaInstaller.DependencyEnum)
    field(:dependency_type, MishkaInstaller.DependencyTypeEnum)

    field(:url, :string)
    field(:git_tag, :string)
    field(:custom_command, :string)
    field(:dependencies, {:array, :map}, default: [])

    timestamps(type: :utc_datetime)
  end

  @all_fields ~w(app version type url dependency_type git_tag custom_command dependencies)a
  @required_fields ~w(app version type dependency_type)a

  @spec changeset(struct(), map()) :: Ecto.Changeset.t()
  def changeset(struct, params \\ %{}) do
    struct
    |> cast(params, @all_fields)
    |> validate_required(@required_fields,
      message:
        Gettext.dgettext(
          MishkaInstaller.gettext(),
          "mishka_installer",
          "You should fill all the required fields."
        )
    )
    |> unique_constraint(:name,
      name: :index_dependencies_on_app,
      message:
        Gettext.dgettext(
          MishkaInstaller.gettext(),
          "mishka_installer",
          "Each dependency should have a unique app name, this name existed before."
        )
    )
  end
end