#include "EnemySpaceship.h"
#include "Kismet/GameplayStatics.h"

AEnemySpaceship::AEnemySpaceship()
{
    PrimaryActorTick.bCanEverTick = true;

    // Create and setup the enemy mesh
    EnemyMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("EnemyMesh"));
    RootComponent = EnemyMesh;

    // Disable gravity and physics simulation
    EnemyMesh->SetSimulatePhysics(false);
    EnemyMesh->SetEnableGravity(false);

    // Set up collision for the enemy mesh
    EnemyMesh->SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);
    EnemyMesh->SetCollisionObjectType(ECC_Pawn);
    EnemyMesh->SetCollisionResponseToAllChannels(ECR_Block);
    EnemyMesh->SetCollisionResponseToChannel(ECC_Pawn, ECR_Ignore); // Ignore other pawns
    EnemyMesh->SetCollisionResponseToChannel(ECC_GameTraceChannel1, ECR_Ignore); // Ignore player
    EnemyMesh->SetGenerateOverlapEvents(true);
}

void AEnemySpaceship::BeginPlay()
{
    Super::BeginPlay();

    // Find the player pawn
    PlayerPawn = UGameplayStatics::GetPlayerPawn(GetWorld(), 0);
}

void AEnemySpaceship::Tick(float DeltaTime)
{
    Super::Tick(DeltaTime);

    if (PlayerPawn)
    {
        // Move towards the player
        FVector Direction = (PlayerPawn->GetActorLocation() - GetActorLocation()).GetSafeNormal();
        FVector NewLocation = GetActorLocation() + Direction * MovementSpeed * DeltaTime;
        SetActorLocation(NewLocation);

        // Face towards the player
        FRotator NewRotation = Direction.Rotation();
        SetActorRotation(NewRotation);
    }
}

float AEnemySpaceship::TakeDamage(float DamageAmount, FDamageEvent const& DamageEvent,
    AController* EventInstigator, AActor* DamageCauser)
{
    float DamageToApply = Super::TakeDamage(DamageAmount, DamageEvent, EventInstigator, DamageCauser);

    CurrentHealth -= DamageToApply;

    // Debug message
    if (GEngine)
    {
        GEngine->AddOnScreenDebugMessage(-1, 2.0f, FColor::Red,
            FString::Printf(TEXT("Enemy Health: %f"), CurrentHealth));
    }

    if (CurrentHealth <= 0)
    {
        Die();
    }

    return DamageToApply;
}

void AEnemySpaceship::Die()
{
    // Add any death effects here

    // Destroy the enemy
    Destroy();
}