/*
 * 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.
 */

#include "RangeTriggers.h"
#include "MoveSplineInit.h"
#include "Playerbots.h"
#include "ServerFacade.h"

static float GetSpeedInMotion(Unit* target)
{
    return target->GetSpeed(Movement::SelectSpeedType(target->GetUnitMovementFlags()));
}

bool EnemyTooCloseForSpellTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, "current target");
    if (target)
    {
        if (target->GetTarget() == bot->GetGUID() && !bot->GetGroup() && !target->HasUnitState(UNIT_STATE_ROOT) && GetSpeedInMotion(target) > GetSpeedInMotion(bot) * 0.65f)
            return false;

        bool isBoss = false;
        bool isRaid = false;
        float combatReach = bot->GetCombatReach() + target->GetCombatReach();
        float targetDistance = sServerFacade->GetDistance2d(bot, target) + combatReach;
        if (target->GetTypeId() == TYPEID_UNIT)
        {
            Creature* creature = botAI->GetCreature(target->GetGUID());
                if (creature)
                {
                    isBoss = creature->isWorldBoss();
                }
        }

        if (bot->GetMap() && bot->GetMap()->IsRaid())
            isRaid = true;

//        if (isBoss || isRaid)
//            return sServerFacade->IsDistanceLessThan(targetDistance, (botAI->GetRange("spell") + combatReach) / 2);

        return sServerFacade->IsDistanceLessOrEqualThan(targetDistance, (botAI->GetRange("spell") + combatReach / 2));
    }
    return false;
}

bool EnemyTooCloseForShootTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, "current target");
    if (!target)
        return false;

    if (target->GetTarget() == bot->GetGUID() && !bot->GetGroup() && !target->HasUnitState(UNIT_STATE_ROOT) && GetSpeedInMotion(target) > GetSpeedInMotion(bot) * 0.65f)
        return false;

    bool isBoss = false;
    bool isRaid = false;
    float combatReach = bot->GetCombatReach() + target->GetCombatReach();
    float targetDistance = sServerFacade->GetDistance2d(bot, target) + combatReach;
    if (target->GetTypeId() == TYPEID_UNIT)
    {
        Creature* creature = botAI->GetCreature(target->GetGUID());
        if (creature)
        {
            isBoss = creature->isWorldBoss();
        }
    }

    if (bot->GetMap() && bot->GetMap()->IsRaid())
        isRaid = true;

//    if (isBoss || isRaid)
//        return sServerFacade->IsDistanceLessThan(targetDistance, botAI->GetRange("shoot") + combatReach);

    return sServerFacade->IsDistanceLessOrEqualThan(targetDistance, (botAI->GetRange("shoot") + combatReach / 2));
}

bool EnemyTooCloseForMeleeTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, "current target");
    if (target && target->IsPlayer())
        return false;

    return target && AI_VALUE2(bool, "inside target", "current target");
}

bool EnemyIsCloseTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, "current target");
    return target && sServerFacade->IsDistanceLessOrEqualThan(AI_VALUE2(float, "distance", "current target"), sPlayerbotAIConfig->tooCloseDistance);
}

bool OutOfRangeTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, GetTargetName());
    return target && sServerFacade->IsDistanceGreaterThan(AI_VALUE2(float, "distance", GetTargetName()), distance);
}

EnemyOutOfSpellRangeTrigger::EnemyOutOfSpellRangeTrigger(PlayerbotAI* botAI) : OutOfRangeTrigger(botAI, "enemy out of spell range", botAI->GetRange("spell"))
{
}

bool EnemyOutOfSpellRangeTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, GetTargetName());
    if (!target)
        return false;

    float combatReach = bot->GetCombatReach() + target->GetCombatReach();
    return target && (sServerFacade->GetDistance2d(bot, target) > (distance + combatReach + sPlayerbotAIConfig->contactDistance) || !bot->IsWithinLOSInMap(target));
}

bool EnemyOutOfMeleeTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, GetTargetName());
    if (!target)
        return false;

    float targetDistance = sServerFacade->GetDistance2d(bot, target);
    return target && (targetDistance > std::max(5.0f, bot->GetCombatReach() + target->GetCombatReach()) || (!bot->IsWithinLOSInMap(target) && targetDistance > 5.0f));
}

bool PartyMemberToHealOutOfSpellRangeTrigger::IsActive()
{
    Unit* target = AI_VALUE(Unit*, GetTargetName());
    if (!target)
        return false;

    float combatReach = bot->GetCombatReach() + target->GetCombatReach();
    return target && (sServerFacade->GetDistance2d(bot, target) > (distance + sPlayerbotAIConfig->contactDistance) || !bot->IsWithinLOSInMap(target));
}

PartyMemberToHealOutOfSpellRangeTrigger::PartyMemberToHealOutOfSpellRangeTrigger(PlayerbotAI* botAI) :
    OutOfRangeTrigger(botAI, "party member to heal out of spell range", botAI->GetRange("heal"))
{
}

bool FarFromMasterTrigger::IsActive()
{
    return sServerFacade->IsDistanceGreaterThan(AI_VALUE2(float, "distance", "master target"), distance);
}