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// Copyright (c) 2023 Nick Maleki, Recursion Computing, LLC
#pragma once

#include "CoreMinimal.h"
#include "Components/EditableTextBox.h"
#include "Components/MultiLineEditableText.h"
#include "Framework/Text/TextLayout.h"
#include "MyMultiLineEditableText.generated.h"


/** Called when the cursor is moved within the text area */
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnCursorMovedRM, int32, InLineIndex, int32, InOffset);

/**
 * Editable text box widget
 */
UCLASS(meta=( DisplayName="Hidden Editable Text (Multi-Line)" ))
class GATEST3_API UMyMultiLineEditableText : public UMultiLineEditableText
{
	/** Called when the cursor is moved within the text area */
	DECLARE_DELEGATE_OneParam( FOnCursorMoved, const FTextLocation& );
	
	GENERATED_BODY()

	/** Called when the cursor is moved within the text area */
	UPROPERTY(BlueprintAssignable)
	FOnCursorMovedRM OnCursorMoved;
	
	virtual TSharedRef<SWidget> RebuildWidget() override;

public:
	void HandleEditableTextCursorMoved(const FTextLocation& NewCursorPosition ) const;

	UFUNCTION(BlueprintCallable)
	void InsertTextAtCursor(FString InText) const;

	UFUNCTION(BlueprintCallable)
	void MoveCursor(const int& InLineIndex, const int& InOffset);
};


#include "MyMultiLineEditableText.h"
#include "Widgets/Text/SMultiLineEditableText.h"

TSharedRef<SWidget> UMyMultiLineEditableText::RebuildWidget()
{
	MyMultiLineEditableText = SNew(SMultiLineEditableText)
	.OnCursorMoved(BIND_UOBJECT_DELEGATE(FOnCursorMoved, HandleEditableTextCursorMoved))
	.VirtualKeyboardOptions(VirtualKeyboardOptions)
	.OnTextChanged(BIND_UOBJECT_DELEGATE(FOnTextChanged, HandleOnTextChanged))
	.OnTextCommitted(BIND_UOBJECT_DELEGATE(FOnTextCommitted, HandleOnTextCommitted));

	MyMultiLineEditableText->SetTextStyle(&WidgetStyle);
	MyMultiLineEditableText->SetAllowContextMenu(AllowContextMenu);
	MyMultiLineEditableText->SetIsReadOnly(GetIsReadOnly());
	MyMultiLineEditableText->SetSelectAllTextWhenFocused(GetSelectAllTextWhenFocused());
	MyMultiLineEditableText->SetClearTextSelectionOnFocusLoss(GetClearTextSelectionOnFocusLoss());
	MyMultiLineEditableText->SetRevertTextOnEscape(GetRevertTextOnEscape());
	MyMultiLineEditableText->SetClearKeyboardFocusOnCommit(GetClearKeyboardFocusOnCommit());
	MyMultiLineEditableText->SetVirtualKeyboardDismissAction(VirtualKeyboardDismissAction);
	
	
	return MyMultiLineEditableText.ToSharedRef();
}

void UMyMultiLineEditableText::HandleEditableTextCursorMoved(const FTextLocation& NewCursorPosition) const
{
	OnCursorMoved.Broadcast(NewCursorPosition.GetLineIndex(), NewCursorPosition.GetOffset());
}

void UMyMultiLineEditableText::InsertTextAtCursor(const FString InText) const
{
	MyMultiLineEditableText->InsertTextAtCursor(InText);
}

void UMyMultiLineEditableText::MoveCursor(const int& InLineIndex, const int& InOffset)
{
	MyMultiLineEditableText->GoTo(FTextLocation(InLineIndex, InOffset));
}

// FTextLocation UMyMultiLineEditableText::GetTextLocation() const {
// 	return CaretLocation;
// }