defmodule Ami.AffiliateLogoAttachment do
  use Ecto.Schema
  use Arc.Ecto.Schema

  import Ecto.{
    Changeset
  }

  alias Ami.{
    Course,
    Repo
  }

  alias Ami.AffiliateLogoAttachmentUploader.Type

  schema "affiliate_logo_attachments" do
    @timestamps_opts [type: :naive_datetime_usec]
    
    field(:name, :string)
    field(:file, Type)
    timestamps()

    belongs_to(:course, Course)
  end

  def changeset(struct, params \\ %{}) do
    struct
    |> cast(params, [:course_id, :name])
    |> cast_attachments(params, [:file])
    |> case do
      %{valid?: false, changes: changes} = changeset when changes == %{} ->
        %{changeset | action: :ignore}

      changeset ->
        changeset
    end
  end

  def affiliate_logo_for_course(logos_list) do
    logo = List.last(logos_list)
    env = Application.get_env(:ami_web, :env)

    if !is_nil(logo) do
      case Regex.match?(~r{/\d+/\w+}, logo.file.file_name) do
        true ->
          case env do
            :dev ->
              "https://ami-aws-staging.s3.amazonaws.com/uploads/affiliate_logo/file#{
                logo.file.file_name
              }"

            :staging ->
              "https://ami-aws-staging.s3.amazonaws.com/uploads/affiliate_logo/file#{
                logo.file.file_name
              }"

            :prod ->
              "https://ami-aws-s3.s3.amazonaws.com/uploads/affiliate_logo/file#{
                logo.file.file_name
              }"
          end

        _ ->
          case env do
            :dev ->
              "https://ami-aws-staging.s3.amazonaws.com/uploads/affiliate_logo/file/#{
                logo.file.file_name
              }"

            :staging ->
              "https://ami-aws-staging.s3.amazonaws.com/uploads/affiliate_logo/file/#{
                logo.file.file_name
              }"

            :prod ->
              "https://ami-aws-s3.s3.amazonaws.com/uploads/affiliate_logo/file/#{
                logo.file.file_name
              }"
          end
      end
    end
  end
end