port_all.h

// SPDX-FileCopyrightText: © 2025 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include "dsp/audio_port.h"
#include "dsp/cv_port.h"
#include "dsp/graph.h"
#include "dsp/midi_port.h"
 
namespace zrythm::dsp
{

inline void
add_connection_for_ports (
  dsp::graph::Graph         &graph,
  const dsp::PortPtrVariant &src_var,
  const dsp::PortPtrVariant &dest_var)
{
  std::visit (
    [&] (auto &&src_port, auto &&dest_port) {
      auto * src = graph.get_nodes ().find_node_for_processable (*src_port);
      auto * dest = graph.get_nodes ().find_node_for_processable (*dest_port);
      assert (src);
      assert (dest);
      src->connect_to (*dest);
    },
    src_var, dest_var);
}

inline bool
connect_like_ports (
  dsp::graph::Graph                     &graph,
  const RangeOf<PortUuidReference> auto &src_refs,
  const RangeOf<PortUuidReference> auto &dest_refs)
{
  using ObjectView = utils::UuidIdentifiableObjectView<dsp::PortRegistry>;
  const auto object_getter = [] (auto &&port_ref) {
    return port_ref.get_object ();
  };
  const auto src_output_ports = src_refs | std::views::transform (object_getter);
  const auto dest_input_ports =
    dest_refs | std::views::transform (object_getter);
 
  auto src_midi_out_ports =
    src_output_ports
    | std::views::filter (ObjectView::type_projection<dsp::MidiPort>)
    | std::views::transform (ObjectView::type_transformation<dsp::MidiPort>);
  auto dest_midi_in_ports =
    dest_input_ports
    | std::views::filter (ObjectView::type_projection<dsp::MidiPort>)
    | std::views::transform (ObjectView::type_transformation<dsp::MidiPort>);
  auto src_audio_out_ports =
    src_output_ports
    | std::views::filter (ObjectView::type_projection<dsp::AudioPort>)
    | std::views::transform (ObjectView::type_transformation<dsp::AudioPort>);
  auto dest_audio_in_ports =
    dest_input_ports
    | std::views::filter (ObjectView::type_projection<dsp::AudioPort>)
    | std::views::transform (ObjectView::type_transformation<dsp::AudioPort>);
  auto src_cv_out_ports =
    src_output_ports
    | std::views::filter (ObjectView::type_projection<dsp::CVPort>)
    | std::views::transform (ObjectView::type_transformation<dsp::CVPort>);
  auto dest_cv_in_ports =
    dest_input_ports
    | std::views::filter (ObjectView::type_projection<dsp::CVPort>)
    | std::views::transform (ObjectView::type_transformation<dsp::CVPort>);
 
  bool       connections_made{};
  const auto make_conns = [&connections_made, &graph] (const auto &ports) {
    const auto &[src_port, dest_port] = ports;
    add_connection_for_ports (graph, src_port, dest_port);
    connections_made = true;
  };
 
  std::ranges::for_each (
    std::views::zip (src_midi_out_ports, dest_midi_in_ports), make_conns);
  std::ranges::for_each (
    std::views::zip (src_audio_out_ports, dest_audio_in_ports), make_conns);
  std::ranges::for_each (
    std::views::zip (src_cv_out_ports, dest_cv_in_ports), make_conns);
 
  return connections_made;
}
} // namespace zrythm::dsp