// Fill out your copyright notice in the Description page of Project Settings.

#include "TempCharacter.h"

#include "Blueprint/UserWidget.h"
#include "the_twilight_abyss/BaseItems/InventoryComponent.h"
#include "the_twilight_abyss/BaseItems/Items/BaseItem.h"
#include "GameFramework/CharacterMovementComponent.h"
#include "the_twilight_abyss/MerchantInteraction/Interaction.h"
#include <Runtime/Engine/Classes/Kismet/GameplayStatics.h>
#include "Components/SphereComponent.h"
#include "Kismet/KismetMathLibrary.h"


// CONSTRUCTOR
ATempCharacter::ATempCharacter()
{
	// Set this character to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;
	Inventory = CreateDefaultSubobject<UInventoryComponent>("Inventory");
	Inventory->MaxItemSlots = 10;
	GoldBalance = GoldBalance;
	Health = Health;
	this->GetCharacterMovement()->GetNavAgentPropertiesRef().bCanCrouch = true;
	
}

// Called when the game starts or when spawned
void ATempCharacter::BeginPlay()
{
	Super::BeginPlay();
	Health = 100;
	ThisCamera = Cast<UCameraComponent>(this->FindComponentByClass<UCameraComponent>());
	PlayerCapsule = GetCapsuleComponent();
	TArray<AActor*> AllActorsInScene;

	//MAKE SURE POST PROCESSING IS IN THE SCENE OR GAME WILL CRASH
	UGameplayStatics::GetAllActorsOfClass(GetWorld(), APostProcessVolume::StaticClass(), AllActorsInScene);
	PostProcessVolume = Cast<APostProcessVolume>(AllActorsInScene[0]);

	Enemy = TEXT("Enemy");
	UGameplayStatics::GetAllActorsWithTag(GetWorld(), Enemy, AIActors);

	Ammo = TEXT("Ammo");
}

//Binds the input we made in the setup player component to the forward vector
void ATempCharacter::ForwardInput(float Axis)
{
	AddMovementInput(UKismetMathLibrary::GetForwardVector(FRotator(0, GetControlRotation().Yaw, 0)) * Axis);
}
//Binds the input we made in the setup player component to the right vector
void ATempCharacter::RightMoveInput(float Axis)
{
	AddMovementInput(UKismetMathLibrary::GetRightVector(FRotator(0, GetControlRotation().Yaw, 0)) * Axis);
}

void ATempCharacter::Sneak()
{
	UE_LOG(LogTemp, Display, TEXT("Sneak activated"));
	if (bIsCrouched)
	{
		UnCrouch();
		PostProcessVolume->Settings.VignetteIntensity = 0.0f;
		for (AActor* Actor : AIActors)
		{
			USphereComponent* SphereComponent = Actor->FindComponentByClass<USphereComponent>();
			if (SphereComponent != nullptr)
			{
				SphereComponent->SetSphereRadius(40.0f); //default value
			}
		}
	}
	else
	{
		Crouch();
		for (AActor* Actor : AIActors)
		{
			USphereComponent* SphereComponent = Actor->FindComponentByClass<USphereComponent>();
			if (SphereComponent != nullptr)
			{
				SphereComponent->SetSphereRadius(15.0f);
			}
		}
		PostProcessVolume->Settings.VignetteIntensity = 0.8f;
	}
	
}


// Called every frame
void ATempCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
}

// Gives the character the functionality
void ATempCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);
	PlayerInputComponent->BindAxis(TEXT("Move Forward / Backward"), this, &ATempCharacter::ForwardInput);
	PlayerInputComponent->BindAxis(TEXT("Move Right / Left"), this, &ATempCharacter::RightMoveInput);
	PlayerInputComponent->BindAxis(TEXT("Turn Right / Left Mouse"), this, &ATempCharacter::AddControllerYawInput);
	PlayerInputComponent->BindAxis(TEXT("Look Up / Down Mouse"), this, &ATempCharacter::AddControllerPitchInput);
	PlayerInputComponent->BindAction(TEXT("Jump"), IE_Pressed, this, &ATempCharacter::Jump);
	PlayerInputComponent->BindAction(TEXT("Sneak"), IE_Pressed, this, &ATempCharacter::Sneak);
	PlayerInputComponent->BindAction(TEXT("Sneak"), IE_Released, this, &ATempCharacter::Sneak);
	PlayerInputComponent->BindAction("Interact", IE_Pressed, this, &ATempCharacter::KeyPressed);
}

// When the player presses the E key
void ATempCharacter::KeyPressed()
{
	LineTraceLogic();
}



// Line trace logic
void ATempCharacter::LineTraceLogic()
{
	UE_LOG(LogTemp, Display, TEXT("LineTraceLogic activated"));
	float GlobalTrace = TraceDistance;
	FHitResult OutHit;
	ThisCamera = Cast<UCameraComponent>(this->FindComponentByClass<UCameraComponent>());
	FVector Start = ThisCamera->GetComponentLocation();
	FVector End = Start + GlobalTrace * ThisCamera->GetForwardVector();
	FCollisionQueryParams TraceParams;

	TraceParams.AddIgnoredActor(this);
	
	bHit = GetWorld()->LineTraceSingleByChannel(OutHit, Start, End, ECC_Visibility, TraceParams);
	if (bHit)
	{
		//we store the GetItem function from InventoryComponent into ItemArray variable
		
		if(OutHit.GetActor() == nullptr)
		{
			return;
		}
		if(OutHit.GetActor()->FindComponentByClass<UInventoryComponent>())
		{
			UE_LOG(LogTemp, Display, TEXT("Hit Merchant"));
			auto ItemArray = OutHit.GetActor()->FindComponentByClass<UInventoryComponent>()->GetItem(0);
			if(GoldBalance >= ItemArray->ItemCostPrice)
			{
				GoldBalance -= ItemArray->ItemCostPrice;
				Inventory->AddItem(ItemArray);
				UE_LOG(LogTemp, Display, TEXT("Item Purchased"));
			}
			if(GoldBalance <= 0)
			{
				UE_LOG(LogTemp, Display, TEXT("Not Enough Gold"));
			}
			if(OutHit.GetActor()->ActorHasTag(Ammo))
			{
				OutHit.GetActor()->Destroy();
			}
		}
		// if the actor hit has the interaction component/script then it will activate the code
		
		if (AInteraction* MyInteractable = Cast<AInteraction>(OutHit.GetActor()))
		{
			if (MyInteractable->ShopDialogWidget->IsVisible())
			{
				UE_LOG(LogTemp, Display, TEXT("ShopKeeper text is visible"));
				bShopKeeperText = true;
				return;
			}
			//if there is no text on screen this triggers
			else
			{
				if (MyInteractable->ItemSelectorWidget->IsVisible())
				{
					return;
				}
				else
				{
					DrawDebugLine(GetWorld(), Start, End, FColor::Green, false, 1.0f);
					MyInteractable->OnInteract();
					UE_LOG(LogTemp, Display, TEXT("OnInteract activated"));
					UE_LOG(LogTemp, Display, TEXT("HIT: %s"), *OutHit.GetActor()->GetName());

					// While loop to check bisDisabled var until it changes to true
					while (MyInteractable->bisDisabled == false || MyInteractable->bDisableShopDialMove == false)
					{
						if (MyInteractable->bisDisabled == true || MyInteractable->bDisableShopDialMove == true)
						{
							InputDisabler();
							break;
						}
					}
				}
			}
		}
	}
}

void ATempCharacter::InputDisabler()
{
	//Disable Character Movement
	if (ACharacter* PlayerCharacter = Cast<ACharacter>(GetWorld()->GetFirstPlayerController()->GetPawn()))
	{
		PlayerCharacter->DisableInput(GetWorld()->GetFirstPlayerController());
	}
	//Set to UI Mode Only
	APlayerController* PlayerController = GetWorld()->GetFirstPlayerController();
	PlayerController->SetInputMode(FInputModeUIOnly());
	PlayerController->bShowMouseCursor = true;
	
	disableTab = true;
	if (ThisCamera != nullptr)
	{
		OriginalCameraLocation = ThisCamera->GetComponentLocation();
		OriginalCameraRotation = ThisCamera->GetComponentRotation();
		OriginalCameraFOV = ThisCamera->FieldOfView;
		UE_LOG(LogTemp, Display, TEXT("Original Camera Location: %s"), *OriginalCameraLocation.ToString());
	}
}

void ATempCharacter::InputEnabler()
{
	//Enable Character Movement
	if (ACharacter* PlayerCharacter = Cast<ACharacter>(GetWorld()->GetFirstPlayerController()->GetPawn()))
	{
		PlayerCharacter->EnableInput(GetWorld()->GetFirstPlayerController());
	}
	//Reset UI Mode
	APlayerController* PlayerController = GetWorld()->GetFirstPlayerController();
	PlayerController->SetInputMode(FInputModeGameOnly());
	PlayerController->bShowMouseCursor = false;
	
	UE_LOG(LogTemp, Display, TEXT("Enabling Inputs"));
	disableTab = true;
	TraceDistance = 300;
	if (ThisCamera != nullptr)
	{
		ThisCamera->SetWorldLocation(OriginalCameraLocation);
		ThisCamera->SetWorldRotation(OriginalCameraRotation);
		ThisCamera->FieldOfView = OriginalCameraFOV;
		UE_LOG(LogTemp, Display, TEXT("Original Camera Location: %s"), *OriginalCameraLocation.ToString());
	}
}

void ATempCharacter::UseItem(class UBaseItem* Item)
{
	if(Item)
	{
		Item->Use(this);
		Item->OnUse(this); //OnUse is a Blueprint Version
	}
}

void ATempCharacter::BuyItem()
{
	UE_LOG(LogTemp, Display, TEXT("BUY ITEM FIRING"));
	TraceDistance = 1000;
	LineTraceLogic();
}