/*
 * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it
 * and/or modify it under version 2 of the License, or (at your option), any later version.
 */

#ifndef _PLAYERBOT_FLEEMANAGER_H
#define _PLAYERBOT_FLEEMANAGER_H

#include <vector>

#include "Common.h"
#include "TravelMgr.h"

class Player;
class PlayerbotAI;

class FleePoint
{
public:
    FleePoint(PlayerbotAI* botAI, float x, float y, float z)
        : botAI(botAI), sumDistance(0.0f), minDistance(0.0f), x(x), y(y), z(z)
    {
    }

    float x;
    float y;
    float z;

    float sumDistance;
    float minDistance;

private:
    PlayerbotAI* botAI;
};

class FleeManager
{
public:
    FleeManager(Player* bot, float maxAllowedDistance, float followAngle, bool forceMaxDistance = false,
                WorldPosition startPosition = WorldPosition());

    bool CalculateDestination(float* rx, float* ry, float* rz);
    bool isUseful();

private:
    void calculatePossibleDestinations(std::vector<FleePoint*>& points);
    void calculateDistanceToCreatures(FleePoint* point);
    void cleanup(std::vector<FleePoint*>& points);
    FleePoint* selectOptimalDestination(std::vector<FleePoint*>& points);
    bool isBetterThan(FleePoint* point, FleePoint* other);

    Player* bot;
    float maxAllowedDistance;
    [[maybe_unused]] float followAngle;  // unused - whipowill
    bool forceMaxDistance;
    WorldPosition startPosition;
};

#endif