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

#pragma once

#include "CoreMinimal.h"
#include "BulletHitInterface.h"
#include "GameFramework/Character.h"
#include "Enemy.generated.h"

class UParticleSystem;
class USoundCue;

UCLASS()
class SHOOTER_API AEnemy : public ACharacter, public IBulletHitInterface
{
	GENERATED_BODY()

public:
	// Sets default values for this character's properties
	AEnemy();

protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;

	UFUNCTION(BlueprintNativeEvent)
	void ShowHealthBar();
	void ShowHealthBar_Implementation();

	UFUNCTION(BlueprintImplementableEvent)
	void HideHealthBar();
	
private:
	/** Particles to spawn when hit by bullets */
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Combat, meta = (AllowPrivateAccess = true))
	UParticleSystem* ImpactParticles;

	/** Sound to play when hit by bullets */
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Combat, meta = (AllowPrivateAccess = true))
	USoundCue* ImpactSound;

	/** Current health */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Combat, meta = (AllowPrivateAccess = true))
	float Health;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Combat, meta = (AllowPrivateAccess = true))
	float MaxHealth;

	/** Name of the head bone */
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Combat, meta = (AllowPrivateAccess = true))
	FString HeadBone;

	/** Time to display health bar once shot */
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Combat, meta = (AllowPrivateAccess = true))
	float HealthBarDisplayTime;
	
	FTimerHandle HealthBarTimer;
public:	
	// Called every frame
	virtual void Tick(float DeltaTime) override;

	// Called to bind functionality to input
	virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;

	virtual void BulletHit_Implementation(FHitResult HitResult) override;

	virtual float TakeDamage(float DamageAmount, FDamageEvent const& DamageEvent, AController* EventInstigator, AActor* DamageCauser) override;

	FORCEINLINE FString GetHeadBone() const { return HeadBone; }
};