/*
 * 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 "CastTimeStrategy.h"
#include "GenericSpellActions.h"
#include "Playerbots.h"

float CastTimeMultiplier::GetValue(Action* action)
{
    if (action == nullptr)
        return 1.0f;

    // uint8 targetHealth = AI_VALUE2(uint8, "health", "current target");
    std::string const name = action->getName();

    if (!action->GetTarget() || action->GetTarget() != AI_VALUE(Unit*, "current target"))
        return 1.0f;

    if (/*targetHealth < sPlayerbotAIConfig->criticalHealth && */dynamic_cast<CastSpellAction*>(action))
    {
        uint32 spellId = AI_VALUE2(uint32, "spell id", name);
        SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spellId);
        if (!spellInfo)
            return 1.0f;

        if ((spellInfo->Targets & TARGET_FLAG_DEST_LOCATION) != 0 || (spellInfo->Targets & TARGET_FLAG_SOURCE_LOCATION) != 0)
            return 1.0f;
        
        uint32 castTime = spellInfo->CalcCastTime();

        if (spellInfo->IsChanneled())
        {
            int32 duration = spellInfo->GetDuration();
            bot->ApplySpellMod(spellInfo->Id, SPELLMOD_DURATION, duration);
            duration = std::min(duration, 3000);
            if (duration > 0)
                castTime += duration;
        }

        Unit* target = action->GetTarget();
        if (!target || !target->IsAlive() || !target->IsInWorld()) {
            return 1.0f;
        }

        if (castTime > (1000 * target->GetHealth() / AI_VALUE(float, "expected group dps"))) {
            return 0.1f;
        }
    }
    // if (castTime >= 3000)
    //     return 0.0f;

    // if (castTime >= 1500)
    //     return 0.5f;

    // if (castTime >= 1000)
    //     return 0.25f;
    // // }

    return 1.0f;
}

void CastTimeStrategy::InitMultipliers(std::vector<Multiplier*> &multipliers)
{
    multipliers.push_back(new CastTimeMultiplier(botAI));
}