/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2019 Olive Team

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

***/

#include "clip.h"

#include "node/processor/renderer/renderer.h"

ClipBlock::ClipBlock()
{
  texture_input_ = new NodeInput("tex_in");
  texture_input_->add_data_input(NodeInput::kTexture);
  AddParameter(texture_input_);
}

Block *ClipBlock::copy()
{
  ClipBlock* c = new ClipBlock();

  // Duplicate connection
  // FIXME: This behavior should probably be configurable
  if (texture_input()->IsConnected()) {
    NodeParam::ConnectEdge(texture_input()->edges().first()->output(), c->texture_input());
  }

  return new ClipBlock();
}

Block::Type ClipBlock::type()
{
  return kClip;
}

QString ClipBlock::Name()
{
  return tr("Clip");
}

QString ClipBlock::id()
{
  return "org.olivevideoeditor.Olive.clip";
}

QString ClipBlock::Description()
{
  return tr("A time-based node that represents a media source.");
}

NodeInput *ClipBlock::texture_input()
{
  return texture_input_;
}

void ClipBlock::set_time(const rational &time)
{
  Node::set_time(time);

  if (texture_input_->IsConnected()) {
    // We convert the time given (timeline time) to media time
    rational media_time = time - in() + media_in();

    texture_input_->edges().first()->output()->parent()->set_time(media_time);
  }
}

void ClipBlock::Process()
{
  // Run default node processing
  Block::Process();

  // Check if we have a renderer instance
  if (RendererProcessor::CurrentInstance() != nullptr) {
    // If the time retrieved is within this block, get texture information
    if (time() >= in() && time() < out()) {
      // Retrieve texture
      texture_output()->set_value(texture_input_->get_value());
    } else {
      texture_output()->set_value(0);
    }
  }
}