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


#include "TangibleManager.h"
#include "Tangible.h"
#include "DebugPrint.h"

using namespace DebugPrint;
using TanArray = UlxTangibleManager::TanArray;
using IdArray = UlxTangibleManager::IdArray;

UlxTangibleManager::UlxTangibleManager() {
	World = nullptr;
	ClassTangibleActor = nullptr;
}

void UlxTangibleManager::Init(UWorld* world, UClass* tanact) {
	World = world;
	ClassTangibleActor = tanact;
}

UlxTangible* UlxTangibleManager::GetTangible(int64 id) const {
	UlxTangible*const* p = IdToTangible.Find(id);
	if (p == nullptr) {
		return nullptr;
	} else {
		return *p;
	}
}

UlxTangible* UlxTangibleManager::MakeTangible(int64 id) {
	UlxTangible*& t = IdToTangible.FindOrAdd(id);
	if (t == nullptr) {
		t = NewObject<UlxTangible>();
		t->Init(this, id);

		// TODO: fix this.  The blueprint needs to be assigned
		// during animation queue parsing, based on the animation
		// queue keyword 'bp'.
		t->SetActorBlueprintClass(ClassTangibleActor);
	}
	return t;
}

void UlxTangibleManager::DeleteTangible(int64 id) {
	// IMPLEMENT ME
}

TanArray UlxTangibleManager::GetAllTangibles() const {
	TanArray result;
	result.SetNum(IdToTangible.Num());
	int next = 0;
	for (auto& pair : IdToTangible) {
		result[next++] = pair.Value;
	}
	return result;
}

void UlxTangibleManager::UpdateNear(IdView near) {
	// Clear all the 'NearAccordingToLuprex' flags.
	for (const auto& pair : IdToTangible) {
		pair.Value->NearAccordingToLuprex = false;
	}
	// For every ID on the list, create it if it doesn't exist,
	// mark it, and return it.
	for (int64 id : near) {
		UlxTangible* tan = MakeTangible(id);
		tan->NearAccordingToLuprex = true;
	}
}

IdArray UlxTangibleManager::GetIds(const TanArray &arr) {
	IdArray result;
	result.SetNum(arr.Num());
	for (int i = 0; i < arr.Num(); i++) {
		result[i] = arr[i]->TangibleId;
	}
	return result;
}