#pragma region CPL License
/*
Nuclex Unreal Module
Copyright (C) 2014-2021 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library 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
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

#include "VisualNovel/VisualNovelPlayerController.h"
#include "InterfaceCast.h"

// --------------------------------------------------------------------------------------------- //

AVisualNovelPlayerController::AVisualNovelPlayerController() :
  defaultDialogInputActionsBound(false),
  dialogForWhichParagraphWasChecked(nullptr) {}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::InjectAcceptChoice(int choiceIndex) {
  if(this->EnableDialogInput) {
    UObject *dialogPointer = this->ActiveDialog.GetObject();
    if(dialogPointer != nullptr) {
      if(this->dialogForWhichParagraphWasChecked != dialogPointer) {
        this->activeParagraph = interface_cast<IButtonControllableParagraph>(this->ActiveDialog);
        this->dialogForWhichParagraphWasChecked = dialogPointer;
      }
      if(this->activeParagraph.GetObject() != nullptr) {
        IButtonControllableParagraph::Execute_AcceptChoice(
          this->activeParagraph.GetObject(), choiceIndex
        );
      }
    }
  }
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::InjectSkip() {
  if(this->EnableDialogInput) {
    UObject *dialogPointer = this->ActiveDialog.GetObject();
    if(dialogPointer != nullptr) {
      if(this->dialogForWhichParagraphWasChecked != dialogPointer) {
        this->activeParagraph = interface_cast<IButtonControllableParagraph>(this->ActiveDialog);
        this->dialogForWhichParagraphWasChecked = dialogPointer;
      }
      if(this->activeParagraph.GetObject() != nullptr) {
        IButtonControllableParagraph::Execute_Skip(this->activeParagraph.GetObject());
      }
    }
  }
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::BindToDefaultInputActions_Implementation() {
  Super::BindToDefaultInputActions_Implementation();

  if(!this->defaultDialogInputActionsBound) {
    UInputComponent &inputComponent = *this->InputComponent;

    // Tell Unreal's "input component" to notify us when certain input actions are activated
    inputComponent.BindAction(
      TEXT("Choice1"), IE_Pressed, this, &AVisualNovelPlayerController::firstChoiceAccepted
    );
    inputComponent.BindAction(
      TEXT("Choice2"), IE_Pressed, this, &AVisualNovelPlayerController::secondChoiceAccepted
    );
    inputComponent.BindAction(
      TEXT("Choice3"), IE_Pressed, this, &AVisualNovelPlayerController::thirdChoiceAccepted
    );
    inputComponent.BindAction(
      TEXT("Choice4"), IE_Pressed, this, &AVisualNovelPlayerController::fourthChoiceAccepted
    );
    inputComponent.BindAction(
      TEXT("Choice5"), IE_Pressed, this, &AVisualNovelPlayerController::fifthChoiceAccepted
    );
    inputComponent.BindAction(
      TEXT("Skip"), IE_Pressed, this, &AVisualNovelPlayerController::InjectSkip
    );

    this->defaultDialogInputActionsBound = true;
  }
}

// --------------------------------------------------------------------------------------------- //

const TScriptInterface<
  IButtonControllableParagraph
> AVisualNovelPlayerController::GetActiveParagraph_Implementation() {
  UObject *dialogPointer = this->ActiveDialog.GetObject();
  if(dialogPointer != nullptr) {
    if(this->dialogForWhichParagraphWasChecked != dialogPointer) {
      this->activeParagraph = interface_cast<IButtonControllableParagraph>(this->ActiveDialog);
      this->dialogForWhichParagraphWasChecked = dialogPointer;
    }
    return this->activeParagraph;
  } else {
    return TScriptInterface<IButtonControllableParagraph>();
  }
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::BeginParagraphInput_Implementation(
  const TScriptInterface<IButtonControllableParagraph> &targetParagraph
) {
  this->activeParagraph = targetParagraph;
  this->dialogForWhichParagraphWasChecked = this->ActiveDialog.GetObject();

  Super::BeginDialogInput_Implementation(
    interface_cast<IButtonControllableDialog>(targetParagraph)
  );
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::EndParagraphInput_Implementation() {
  this->activeParagraph = nullptr;
  this->dialogForWhichParagraphWasChecked = nullptr;

  Super::EndDialogInput_Implementation();
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::BeginDialogInput_Implementation(
  const TScriptInterface<IButtonControllableDialog> &targetDialog
) {
  UObject *dialogPointer = targetDialog.GetObject();
  if(dialogPointer != nullptr) {
    if(this->dialogForWhichParagraphWasChecked != dialogPointer) {
      this->activeParagraph = interface_cast<IButtonControllableParagraph>(targetDialog);
      this->dialogForWhichParagraphWasChecked = dialogPointer;
    }
  }

  Super::BeginDialogInput_Implementation(targetDialog);
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::EndDialogInput_Implementation() {
  this->activeParagraph = nullptr;
  this->dialogForWhichParagraphWasChecked = nullptr;

  Super::EndDialogInput_Implementation();
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::firstChoiceAccepted() {
  InjectAcceptChoice(0);
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::secondChoiceAccepted() {
  InjectAcceptChoice(1);
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::thirdChoiceAccepted() {
  InjectAcceptChoice(2);
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::fourthChoiceAccepted() {
  InjectAcceptChoice(3);
}

// --------------------------------------------------------------------------------------------- //

void AVisualNovelPlayerController::fifthChoiceAccepted() {
  InjectAcceptChoice(4);
}

// --------------------------------------------------------------------------------------------- //