wanderer/lib/wanderer_app/api/map_system_comment.ex

defmodule WandererApp.Api.MapSystemComment do
  @moduledoc false

  use Ash.Resource,
    domain: WandererApp.Api,
    data_layer: AshPostgres.DataLayer,
    extensions: [AshJsonApi.Resource]

  postgres do
    repo(WandererApp.Repo)
    table("map_system_comments_v1")
  end

  json_api do
    type "map_system_comments"

    includes([
      :system,
      :character
    ])

    routes do
      base("/map_system_comments")

      get(:read)
      index :read

      # Custom route for system-specific comments
      index :by_system_id, route: "/by_system/:system_id"
    end
  end

  code_interface do
    define(:create, action: :create)
    define(:destroy, action: :destroy)

    define(:by_id,
      get_by: [:id],
      action: :read
    )

    define(:by_system_id, action: :by_system_id, args: [:system_id])
  end

  actions do
    default_accept [
      :system_id,
      :character_id,
      :text
    ]

    defaults [:read, :destroy]

    create :create do
      primary? true

      accept [
        :system_id,
        :character_id,
        :text
      ]

      argument :system_id, :uuid, allow_nil?: false
      argument :character_id, :uuid, allow_nil?: false

      change manage_relationship(:system_id, :system, on_lookup: :relate, on_no_match: nil)
      change manage_relationship(:character_id, :character, on_lookup: :relate, on_no_match: nil)
    end

    read :by_system_id do
      argument(:system_id, :string, allow_nil?: false)

      filter(expr(system_id == ^arg(:system_id)))
    end
  end

  attributes do
    uuid_primary_key :id

    attribute :text, :string do
      allow_nil? false
    end

    create_timestamp(:inserted_at)
    update_timestamp(:updated_at)
  end

  relationships do
    belongs_to :system, WandererApp.Api.MapSystem do
      attribute_writable? true
      public? true
    end

    belongs_to :character, WandererApp.Api.Character do
      attribute_writable? true
      public? true
    end
  end
end