# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Pleroma.Uploaders.Local do
  @behaviour Pleroma.Uploaders.Uploader
  alias Pleroma.Config

  @impl true
  def get_file(_) do
    {:ok, {:static_dir, upload_path()}}
  end

  @impl true
  def put_file(upload) do
    {local_path, file} =
      case Enum.reverse(Path.split(upload.path)) do
        [file] ->
          {upload_path(), file}

        [file | folders] ->
          path = Path.join([upload_path()] ++ Enum.reverse(folders))
          File.mkdir_p!(path)
          {path, file}
      end

    result_file = Path.join(local_path, file)

    if not File.exists?(result_file) do
      File.cp!(upload.tempfile, result_file)
    end

    {:ok, upload}
  end

  def upload_path do
    Config.get!([__MODULE__, :uploads])
  end

  @impl true
  def delete_file(path) do
    upload_path()
    |> Path.join(path)
    |> File.rm()
    |> case do
      :ok -> :ok
      {:error, posix_error} -> {:error, to_string(posix_error)}
    end
  end

  @impl true
  def base_url() do
    Config.get([Pleroma.Upload, :base_url]) || Pleroma.Web.Endpoint.url() <> "/media/"
  end
end