/**

GDevelop - Function Extension
Copyright (c) 2008-2016 Florian Rival (Florian.Rival@gmail.com)
This project is released under the MIT License.
*/

#if defined(GD_IDE_ONLY)

#include "FunctionEvent.h"
#include "FunctionEventEditorDlg.h"
#include "GDCore/Events/Builtin/LinkEvent.h"
#include "GDCore/Events/CodeGeneration/EventsCodeGenerationContext.h"
#include "GDCore/Events/CodeGeneration/EventsCodeGenerator.h"
#include "GDCore/Events/Serialization.h"
#include "GDCore/Events/Tools/EventsCodeNameMangler.h"
#include "GDCore/IDE/Dialogs/EventsEditor/EventsEditorItemsAreas.h"
#include "GDCore/IDE/Dialogs/EventsEditor/EventsEditorSelection.h"
#include "GDCore/IDE/Dialogs/EventsEditor/EventsRenderingHelper.h"
#include "GDCore/Serialization/SerializerElement.h"
#include "GDCore/Tools/Localization.h"
#include "GDCpp/Runtime/CommonTools.h"
#include "GDCpp/Runtime/RuntimeScene.h"
#include "GDCpp/Runtime/TinyXml/tinyxml.h"
namespace gd {
class Project;
}

using namespace std;

FunctionEvent::FunctionEvent()
    : BaseEvent(), name("MyFunction"), nameSelected(false) {}

vector<gd::InstructionsList*> FunctionEvent::GetAllConditionsVectors() {
  vector<gd::InstructionsList*> allConditions;
  allConditions.push_back(&conditions);

  return allConditions;
}

vector<gd::InstructionsList*> FunctionEvent::GetAllActionsVectors() {
  vector<gd::InstructionsList*> allActions;
  allActions.push_back(&actions);

  return allActions;
}
vector<const gd::InstructionsList*> FunctionEvent::GetAllConditionsVectors()
    const {
  vector<const gd::InstructionsList*> allConditions;
  allConditions.push_back(&conditions);

  return allConditions;
}

vector<const gd::InstructionsList*> FunctionEvent::GetAllActionsVectors()
    const {
  vector<const gd::InstructionsList*> allActions;
  allActions.push_back(&actions);

  return allActions;
}

void FunctionEvent::SerializeTo(gd::SerializerElement& element) const {
  element.AddChild("name").SetValue(name);
  element.AddChild("objectsPassedAsArgument").SetValue(objectsPassedAsArgument);
  gd::EventsListSerialization::SerializeInstructionsTo(
      conditions, element.AddChild("conditions"));
  gd::EventsListSerialization::SerializeInstructionsTo(
      actions, element.AddChild("actions"));
  gd::EventsListSerialization::SerializeEventsTo(events,
                                                 element.AddChild("events"));
}

void FunctionEvent::UnserializeFrom(gd::Project& project,
                                    const gd::SerializerElement& element) {
  name = element.GetChild("name", 0, "Name").GetValue().GetString();
  objectsPassedAsArgument =
      element.GetChild("objectsPassedAsArgument").GetValue().GetString();
  gd::EventsListSerialization::UnserializeInstructionsFrom(
      project, conditions, element.GetChild("conditions", 0, "Conditions"));
  gd::EventsListSerialization::UnserializeInstructionsFrom(
      project, actions, element.GetChild("actions", 0, "Actions"));
  gd::EventsListSerialization::UnserializeEventsFrom(
      project, events, element.GetChild("events", 0, "Events"));
}

/**
 * Render the event in the bitmap
 */
void FunctionEvent::Render(wxDC& dc,
                           int x,
                           int y,
                           unsigned int width,
                           gd::EventsEditorItemsAreas& areas,
                           gd::EventsEditorSelection& selection,
                           const gd::Platform& platform) {
#if !defined(GD_NO_WX_GUI)
  gd::EventsRenderingHelper* renderingHelper = gd::EventsRenderingHelper::Get();
  int border = renderingHelper->instructionsListBorder;
  const int functionTextHeight = 20;

  // Draw header rectangle
  wxRect headerRect(x, y, width, functionTextHeight);
  renderingHelper->DrawNiceRectangle(dc, headerRect);

  // Name
  dc.SetFont(renderingHelper->GetNiceFont().Bold());
  dc.SetTextForeground(wxColour(0, 0, 0));
  wxString caption = _("Function") + " " + name;
  if (!objectsPassedAsArgument.empty())
    caption += " " + _("( Objects passed as parameters : ") +
               objectsPassedAsArgument + _(")");
  dc.DrawText(caption, x + 4, y + 3);

  // Draw conditions rectangle
  wxRect rect(x,
              y + functionTextHeight,
              renderingHelper->GetConditionsColumnWidth() + border,
              GetRenderedHeight(width, platform) - functionTextHeight);
  renderingHelper->DrawNiceRectangle(dc, rect);

  // Draw actions and conditions
  renderingHelper->DrawConditionsList(
      conditions,
      dc,
      x + border,
      y + functionTextHeight + border,
      renderingHelper->GetConditionsColumnWidth() - border,
      this,
      areas,
      selection,
      platform);
  renderingHelper->DrawActionsList(
      actions,
      dc,
      x + renderingHelper->GetConditionsColumnWidth() + border,
      y + functionTextHeight + border,
      width - renderingHelper->GetConditionsColumnWidth() - border * 2,
      this,
      areas,
      selection,
      platform);
#endif
}

unsigned int FunctionEvent::GetRenderedHeight(
    unsigned int width, const gd::Platform& platform) const {
#if !defined(GD_NO_WX_GUI)
  if (eventHeightNeedUpdate) {
    gd::EventsRenderingHelper* renderingHelper =
        gd::EventsRenderingHelper::Get();
    int border = renderingHelper->instructionsListBorder;
    const int functionTextHeight = 20;

    // Get maximum height needed
    int conditionsHeight = renderingHelper->GetRenderedConditionsListHeight(
        conditions,
        renderingHelper->GetConditionsColumnWidth() - border * 2,
        platform);
    int actionsHeight = renderingHelper->GetRenderedActionsListHeight(
        actions,
        width - renderingHelper->GetConditionsColumnWidth() - border * 2,
        platform);

    renderedHeight =
        ((conditionsHeight > actionsHeight ? conditionsHeight : actionsHeight) +
         functionTextHeight) +
        border * 2;
    eventHeightNeedUpdate = false;
  }

  return renderedHeight;
#else
  return 0;
#endif
}

gd::BaseEvent::EditEventReturnType FunctionEvent::EditEvent(
    wxWindow* parent_,
    gd::Project& game_,
    gd::Layout& scene_,
    gd::MainFrameWrapper& mainFrameWrapper_) {
#if !defined(GD_NO_WX_GUI)
  FunctionEventEditorDlg dialog(parent_, *this, game_, scene_);
  if (dialog.ShowModal() == 0) return Cancelled;
#endif

  return ChangesMade;
}

const FunctionEvent* FunctionEvent::SearchForFunctionInEvents(
    const gd::Project& project,
    const gd::EventsList& events,
    const gd::String& functionName) {
  for (std::size_t i = 0; i < events.size(); ++i) {
    const FunctionEvent* functionEvent =
        dynamic_cast<const FunctionEvent*>(&events[i]);
    const gd::LinkEvent* linkEvent =
        dynamic_cast<const gd::LinkEvent*>(&events[i]);
    if (functionEvent) {
      if (functionEvent->GetName() == functionName) return functionEvent;
    } else if (linkEvent && linkEvent->GetLinkedEvents(project)) {
      const FunctionEvent* result = SearchForFunctionInEvents(
          project, *linkEvent->GetLinkedEvents(project), functionName);
      if (result) return result;
    } else if (events[i].CanHaveSubEvents()) {
      const FunctionEvent* result = SearchForFunctionInEvents(
          project, events[i].GetSubEvents(), functionName);
      if (result) return result;
    }
  }

  return NULL;
}

gd::String FunctionEvent::MangleFunctionName(
    const gd::Layout& layout, const FunctionEvent& functionEvent) {
  // To generate a "unique" name for the function, the name is mangled and
  // suffixed with the pointer to the (original) event of the function.
  const gd::BaseEvent* ptr = &functionEvent;
  std::shared_ptr<gd::BaseEvent> originalEvent =
      functionEvent.originalEvent.lock();
  if (originalEvent != std::shared_ptr<gd::BaseEvent>()) {
    ptr = originalEvent.get();
  }

  return "GDFunction" + layout.GetMangledName() +
         gd::SceneNameMangler::GetMangledSceneName(functionEvent.GetName()) +
         gd::String::From(ptr);
};

#endif