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


#include "PickupSpawnPoint.h"

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

APickupSpawnPoint::APickupSpawnPoint()
{
	PrimaryActorTick.bCanEverTick = true;
	bReplicates = true;
}

void APickupSpawnPoint::BeginPlay()
{
	Super::BeginPlay();
	StartSpawnPickupTimer(nullptr);
}

void APickupSpawnPoint::SpawnPickup()
{
	if (const int32 NumPickupClasses = PickupClasses.Num(); NumPickupClasses > 0)
	{
		const int32 Selection = FMath::RandRange(0, NumPickupClasses - 1);
		SpawnedPickup = GetWorld()->SpawnActor<APickup>(
			PickupClasses[Selection],
			GetActorTransform()
		);
		if (HasAuthority() && SpawnedPickup)
		{
			SpawnedPickup->OnDestroyed.AddDynamic(this, &APickupSpawnPoint::StartSpawnPickupTimer);
		}
	}
}

void APickupSpawnPoint::StartSpawnPickupTimer(AActor* Destroyed)
{
	const float SpawnTime = FMath::RandRange(SpawnPickupTimeMin, SpawnPickupTimeMax);
	GetWorldTimerManager().SetTimer(
		SpawnPickupTimer,
		this,
		&APickupSpawnPoint::SpawnPickupTimerFinished,
		SpawnTime
	);
}

void APickupSpawnPoint::SpawnPickupTimerFinished()
{
	if (HasAuthority())
	{
		SpawnPickup();
	}
}

void APickupSpawnPoint::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
}