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chromic_pdf

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Fast HTML-2-PDF/A renderer based on Chrome & Ghostscript

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chromic_pdf lib chromic_pdf api export_options.ex
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lib/chromic_pdf/api/export_options.ex 

# SPDX-License-Identifier: Apache-2.0



defmodule ChromicPDF.ExportOptions do

  @moduledoc false



  import ChromicPDF.Utils

  alias ChromicPDF.ChromeError



  def feed_file_into_output(pdf_path, opts) do

    case Keyword.get(opts, :output) do

      path when is_binary(path) ->

        File.cp!(pdf_path, path)

        :ok



      fun when is_function(fun, 1) ->

        {:ok, fun.(pdf_path)}



      nil ->

        data =

          pdf_path

          |> File.read!()

          |> Base.encode64()



        {:ok, data}

    end

  end



  def feed_chrome_data_into_output({:error, error}, opts) do

    raise ChromeError, error: error, opts: opts

  end



  def feed_chrome_data_into_output({:ok, data}, opts) do

    case Keyword.get(opts, :output) do

      path when is_binary(path) ->

        File.write!(path, Base.decode64!(data))

        :ok



      fun when is_function(fun, 1) ->

        result_from_callback =

          with_tmp_dir(fn tmp_dir ->

            path = Path.join(tmp_dir, random_file_name(".pdf"))

            File.write!(path, Base.decode64!(data))

            fun.(path)

          end)



        {:ok, result_from_callback}



      nil ->

        {:ok, data}

    end

  end

end