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


#include "Quest.h"

#include "the_twilight_abyss/BaseItems/InventoryComponent.h"

bool UQuest::CheckConditions(UWorldState* WorldState) const
{
	if (!IsValid(Goals)) return true;
	if (WorldStateMatch(WorldState, Goals)) return true;
	return false;
}

bool UQuest::CheckPreConditions(UWorldState* WorldState) const
{
	if (!IsValid(PreConditions)) return true;
	if (WorldStateMatch(WorldState, PreConditions)) return true;
	return false;
}

void UQuest::ApplyRewards(UInventoryComponent* Inventory)
{
	if (Rewards.IsEmpty()) return;
	for (UBaseItem* Item : Rewards)
	{
		Inventory->AddItem(Item);
	}
}

bool UQuest::WorldStateMatch(UWorldState* A, UWorldState* B)
{
	if (A->Items.IsEmpty() && !B->Items.IsEmpty()) return false;
	for (UBaseItem* Item : B->Items)
	{
		if (!A->Items.Contains(Item) && Item->StackCount > A->Items[A->Items.Find(Item)]->StackCount)
		{
			return false;
		}
	}

	if (A->QuestFlags.IsEmpty() && !B->QuestFlags.IsEmpty()) return false;
	for (TTuple<FString, bool> Flag : B->QuestFlags)
	{
		if (!A->QuestFlags.Contains(Flag.Key) || A->QuestFlags[Flag.Key] != Flag.Value)
		{
			return false;
		}
	}

	return true;
}

bool UQuest::FlagTrueMatch(const UWorldState* WorldState, const FString& FlagName)
{
	if (!WorldState->QuestFlags.Contains(FlagName)) return false;
	return true;
}

FString UQuest::GetItemCountAndGoalAmount(const UWorldState* WorldState, UBaseItem* Item) const
{
	FString Result;
	if (WorldState->Items.Contains(Item))
	{
		Result += FString::FromInt(WorldState->Items[WorldState->Items.Find(Item)]->StackCount);
		Result += "/";
		Result += FString::FromInt(Goals->Items[Goals->Items.Find(Item)]->StackCount);
		return Result;
	}
	Result += "0/";
	Result += FString::FromInt(Goals->Items[Goals->Items.Find(Item)]->StackCount);
	return Result;
}