/*
 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @file transition-application.cpp
 * @brief Application class for showing stylable transitions
 */

// Class include
#include "transition-application.h"

// External includes
#include <dali-toolkit/dali-toolkit.h>
#include <dali-toolkit/devel-api/controls/control-devel.h>
#include <dali-toolkit/devel-api/controls/table-view/table-view.h>
#include <cstdio>
#include <sstream>
#include "shadow-button.h"

// Internal includes

using namespace Dali;
using namespace Dali::Toolkit;

namespace
{
void SetLabelText(Button button, const char* label)
{
  button.SetProperty(Toolkit::Button::Property::LABEL, label);
}

} // namespace

namespace Demo
{
const char* TransitionApplication::DEMO_THEME_ONE_PATH(DEMO_STYLE_DIR "style-example-theme-one.json");
const char* TransitionApplication::DEMO_THEME_TWO_PATH(DEMO_STYLE_DIR "style-example-theme-two.json");

TransitionApplication::TransitionApplication(Application& application)
: mApplication(application),
  mTitle(),
  mShadowButton(),
  mActionButtons(),
  mVisualIndex(Property::INVALID_INDEX),
  mActionIndex(Property::INVALID_INDEX)
{
  application.InitSignal().Connect(this, &TransitionApplication::Create);
}

TransitionApplication::~TransitionApplication()
{
}

void TransitionApplication::Create(Application& application)
{
  Window window = application.GetWindow();
  window.KeyEventSignal().Connect(this, &TransitionApplication::OnKeyEvent);
  window.SetBackgroundColor(Vector4(0.1f, 0.1f, 0.1f, 1.0f));

  // Content panes:
  TableView contentLayout = TableView::New(3, 1);
  contentLayout.SetProperty(Dali::Actor::Property::NAME, "ContentLayout");
  contentLayout.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
  contentLayout.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
  contentLayout.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
  contentLayout.SetCellPadding(Vector2(0.0f, 5.0f));
  contentLayout.SetBackgroundColor(Vector4(0.949, 0.949, 0.949, 1.0));
  // Assign all rows the size negotiation property of fitting to children

  window.Add(contentLayout);

  mTitle = TextLabel::New("Custom Control Transition Example");
  mTitle.SetProperty(Dali::Actor::Property::NAME, "Title");
  mTitle.SetStyleName("Title");
  mTitle.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
  mTitle.SetResizePolicy(ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT);
  mTitle.SetProperty(TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER");
  contentLayout.Add(mTitle);
  contentLayout.SetFitHeight(0); // Fill width

  // Provide some padding around the center cell
  TableView buttonLayout = TableView::New(3, 3);
  buttonLayout.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
  buttonLayout.SetFixedHeight(1, 100);
  buttonLayout.SetFixedWidth(1, 350);
  contentLayout.Add(buttonLayout);

  mShadowButton = ShadowButton::New();
  mShadowButton.SetProperty(Dali::Actor::Property::NAME, "ShadowButton");
  mShadowButton.SetActiveState(false);
  mShadowButton.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
  mShadowButton.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
  mShadowButton.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
  mShadowButton.SetProperty(DevelControl::Property::STATE, DevelControl::DISABLED);
  mShadowButton.SetProperty(DevelControl::Property::SUB_STATE, "UNCHECKED");

  buttonLayout.AddChild(mShadowButton, TableView::CellPosition(1, 1));

  TableView actionButtonLayout = TableView::New(1, NUMBER_OF_ACTION_BUTTONS + 1);
  actionButtonLayout.SetProperty(Dali::Actor::Property::NAME, "ThemeButtonsLayout");
  actionButtonLayout.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
  actionButtonLayout.SetResizePolicy(ResizePolicy::FIT_TO_CHILDREN, Dimension::HEIGHT);
  actionButtonLayout.SetFitHeight(0);

  TextLabel label = TextLabel::New("Action: ");
  label.SetResizePolicy(ResizePolicy::USE_NATURAL_SIZE, Dimension::ALL_DIMENSIONS);
  label.SetStyleName("ActionLabel");
  actionButtonLayout.AddChild(label, TableView::CellPosition(0, 0));
  actionButtonLayout.SetCellAlignment(TableView::CellPosition(0, 0), HorizontalAlignment::LEFT, VerticalAlignment::CENTER);

  for(int i = 0; i < NUMBER_OF_ACTION_BUTTONS; ++i)
  {
    mActionButtons[i] = PushButton::New();
    mActionButtons[i].SetProperty(Dali::Actor::Property::NAME, "ActionButton");
    mActionButtons[i].SetStyleName("ActionButton");
    mActionButtons[i].SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
    mActionButtons[i].SetResizePolicy(ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT);
    mActionIndex = mActionButtons[i].RegisterProperty("actionId", i, Property::READ_WRITE);
    mActionButtons[i].ClickedSignal().Connect(this, &TransitionApplication::OnActionButtonClicked);
    actionButtonLayout.AddChild(mActionButtons[i], TableView::CellPosition(0, 1 + i));
  }
  SetLabelText(mActionButtons[0], "Enable");
  SetLabelText(mActionButtons[1], "Check");
  mActionButtons[1].SetProperty(Button::Property::DISABLED, true);

  contentLayout.Add(actionButtonLayout);
  contentLayout.SetFitHeight(2);
}

bool TransitionApplication::OnActionButtonClicked(Button button)
{
  int action = button.GetProperty<int>(mActionIndex);
  switch(action)
  {
    case 0:
    {
      bool activeState = mShadowButton.GetActiveState();
      mShadowButton.SetActiveState(!activeState);
      if(activeState)
      {
        SetLabelText(button, "Enable");
        mShadowButton.SetProperty(DevelControl::Property::STATE, DevelControl::DISABLED);
      }
      else
      {
        SetLabelText(button, "Disable");
        mShadowButton.SetProperty(DevelControl::Property::STATE, DevelControl::NORMAL);
      }
      mActionButtons[1].SetProperty(Button::Property::DISABLED, activeState);
      break;
    }
    case 1:
    {
      bool checkState = mShadowButton.GetCheckState();
      mShadowButton.SetCheckState(!checkState);
      if(checkState)
      {
        SetLabelText(button, "Check");
        mShadowButton.SetProperty(DevelControl::Property::SUB_STATE, "UNCHECKED");
      }
      else
      {
        SetLabelText(button, "Uncheck");
        mShadowButton.SetProperty(DevelControl::Property::SUB_STATE, "CHECKED");
      }
      break;
    }
    case 2:
    {
      break;
    }
    case 3:
    {
      break;
    }
  }

  return true;
}

void TransitionApplication::OnKeyEvent(const KeyEvent& keyEvent)
{
  static int keyPressed = 0;

  if(keyEvent.GetState() == KeyEvent::DOWN)
  {
    if(keyPressed == 0) // Is this the first down event?
    {
      printf("Key pressed: %s %d\n", keyEvent.GetKeyName().c_str(), keyEvent.GetKeyCode());

      if(IsKey(keyEvent, DALI_KEY_ESCAPE) || IsKey(keyEvent, DALI_KEY_BACK))
      {
        mApplication.Quit();
      }
      else if(keyEvent.GetKeyName().compare("Return") == 0)
      {
      }
    }
    keyPressed = 1;
  }
  else if(keyEvent.GetState() == KeyEvent::UP)
  {
    keyPressed = 0;
  }
}

} // namespace Demo