#include "armor.hpp"

#include <components/esm/loadarmo.hpp>
#include <components/esm/loadskil.hpp>
#include <components/esm/loadgmst.hpp>

#include "../mwbase/environment.hpp"
#include "../mwbase/world.hpp"
#include "../mwbase/windowmanager.hpp"

#include "../mwworld/ptr.hpp"
#include "../mwworld/actiontake.hpp"
#include "../mwworld/actionequip.hpp"
#include "../mwworld/inventorystore.hpp"
#include "../mwworld/cellstore.hpp"
#include "../mwworld/physicssystem.hpp"
#include "../mwworld/nullaction.hpp"
#include "../mwworld/containerstore.hpp"
#include "../mwworld/player.hpp"

#include "../mwrender/objects.hpp"
#include "../mwrender/renderinginterface.hpp"

#include "../mwgui/tooltips.hpp"

namespace MWClass
{
    void Armor::insertObjectRendering (const MWWorld::Ptr& ptr, MWRender::RenderingInterface& renderingInterface) const
    {
        const std::string model = getModel(ptr);
        if (!model.empty()) {
            renderingInterface.getObjects().insertModel(ptr, model);
        }
    }

    void Armor::insertObject(const MWWorld::Ptr& ptr, MWWorld::PhysicsSystem& physics) const
    {
        const std::string model = getModel(ptr);
        if(!model.empty())
            physics.addObject(ptr,true);
    }

    std::string Armor::getModel(const MWWorld::Ptr &ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();
        assert(ref->mBase != NULL);

        const std::string &model = ref->mBase->mModel;
        if (!model.empty()) {
            return "meshes\\" + model;
        }
        return "";
    }

    std::string Armor::getName (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return ref->mBase->mName;
    }

    boost::shared_ptr<MWWorld::Action> Armor::activate (const MWWorld::Ptr& ptr,
        const MWWorld::Ptr& actor) const
    {
        return defaultItemActivate(ptr, actor);
    }

    bool Armor::hasItemHealth (const MWWorld::Ptr& ptr) const
    {
        return true;
    }

    int Armor::getItemMaxHealth (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return ref->mBase->mData.mHealth;
    }

    std::string Armor::getScript (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return ref->mBase->mScript;
    }

    std::pair<std::vector<int>, bool> Armor::getEquipmentSlots (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        std::vector<int> slots_;

        const int size = 11;

        static const int sMapping[size][2] =
        {
            { ESM::Armor::Helmet, MWWorld::InventoryStore::Slot_Helmet },
            { ESM::Armor::Cuirass, MWWorld::InventoryStore::Slot_Cuirass },
            { ESM::Armor::LPauldron, MWWorld::InventoryStore::Slot_LeftPauldron },
            { ESM::Armor::RPauldron, MWWorld::InventoryStore::Slot_RightPauldron },
            { ESM::Armor::Greaves, MWWorld::InventoryStore::Slot_Greaves },
            { ESM::Armor::Boots, MWWorld::InventoryStore::Slot_Boots },
            { ESM::Armor::LGauntlet, MWWorld::InventoryStore::Slot_LeftGauntlet },
            { ESM::Armor::RGauntlet, MWWorld::InventoryStore::Slot_RightGauntlet },
            { ESM::Armor::Shield, MWWorld::InventoryStore::Slot_CarriedLeft },
            { ESM::Armor::LBracer, MWWorld::InventoryStore::Slot_LeftGauntlet },
            { ESM::Armor::RBracer, MWWorld::InventoryStore::Slot_RightGauntlet }
        };

        for (int i=0; i<size; ++i)
            if (sMapping[i][0]==ref->mBase->mData.mType)
            {
                slots_.push_back (int (sMapping[i][1]));
                break;
            }

        return std::make_pair (slots_, false);
    }

    int Armor::getEquipmentSkill (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        std::string typeGmst;

        switch (ref->mBase->mData.mType)
        {
            case ESM::Armor::Helmet: typeGmst = "iHelmWeight"; break;
            case ESM::Armor::Cuirass: typeGmst = "iCuirassWeight"; break;
            case ESM::Armor::LPauldron:
            case ESM::Armor::RPauldron: typeGmst = "iPauldronWeight"; break;
            case ESM::Armor::Greaves: typeGmst = "iGreavesWeight"; break;
            case ESM::Armor::Boots: typeGmst = "iBootsWeight"; break;
            case ESM::Armor::LGauntlet:
            case ESM::Armor::RGauntlet: typeGmst = "iGauntletWeight"; break;
            case ESM::Armor::Shield: typeGmst = "iShieldWeight"; break;
            case ESM::Armor::LBracer:
            case ESM::Armor::RBracer: typeGmst = "iGauntletWeight"; break;
        }

        if (typeGmst.empty())
            return -1;

        const MWWorld::Store<ESM::GameSetting> &gmst =
            MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>();

        float iWeight = gmst.find (typeGmst)->getInt();

        if (iWeight * gmst.find ("fLightMaxMod")->getFloat()>=
            ref->mBase->mData.mWeight)
            return ESM::Skill::LightArmor;

        if (iWeight * gmst.find ("fMedMaxMod")->getFloat()>=
            ref->mBase->mData.mWeight)
            return ESM::Skill::MediumArmor;

        return ESM::Skill::HeavyArmor;
    }

    int Armor::getValue (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return ref->mBase->mData.mValue;
    }

    void Armor::registerSelf()
    {
        boost::shared_ptr<Class> instance (new Armor);

        registerClass (typeid (ESM::Armor).name(), instance);
    }

    std::string Armor::getUpSoundId (const MWWorld::Ptr& ptr) const
    {
        int es = getEquipmentSkill(ptr);
        if (es == ESM::Skill::LightArmor)
            return std::string("Item Armor Light Up");
        else if (es == ESM::Skill::MediumArmor)
            return std::string("Item Armor Medium Up");
        else
            return std::string("Item Armor Heavy Up");
    }

    std::string Armor::getDownSoundId (const MWWorld::Ptr& ptr) const
    {
        int es = getEquipmentSkill(ptr);
        if (es == ESM::Skill::LightArmor)
            return std::string("Item Armor Light Down");
        else if (es == ESM::Skill::MediumArmor)
            return std::string("Item Armor Medium Down");
        else
            return std::string("Item Armor Heavy Down");
    }

    std::string Armor::getInventoryIcon (const MWWorld::Ptr& ptr) const
    {
          MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return ref->mBase->mIcon;
    }

    bool Armor::hasToolTip (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return (ref->mBase->mName != "");
    }

    MWGui::ToolTipInfo Armor::getToolTipInfo (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        MWGui::ToolTipInfo info;
        info.caption = ref->mBase->mName + MWGui::ToolTips::getCountString(ptr.getRefData().getCount());
        info.icon = ref->mBase->mIcon;

        std::string text;

        // get armor type string (light/medium/heavy)
        int armorType = getEquipmentSkill(ptr);
        std::string typeText;
        if (armorType == ESM::Skill::LightArmor)
            typeText = "#{sLight}";
        else if (armorType == ESM::Skill::MediumArmor)
            typeText = "#{sMedium}";
        else
            typeText = "#{sHeavy}";

        text += "\n#{sArmorRating}: " + MWGui::ToolTips::toString(ref->mBase->mData.mArmor);

        int remainingHealth = (ptr.getCellRef().mCharge != -1) ? ptr.getCellRef().mCharge : ref->mBase->mData.mHealth;
        text += "\n#{sCondition}: " + MWGui::ToolTips::toString(remainingHealth) + "/"
                + MWGui::ToolTips::toString(ref->mBase->mData.mHealth);

        text += "\n#{sWeight}: " + MWGui::ToolTips::toString(ref->mBase->mData.mWeight) + " (" + typeText + ")";
        text += MWGui::ToolTips::getValueString(ref->mBase->mData.mValue, "#{sValue}");

        if (MWBase::Environment::get().getWindowManager()->getFullHelp()) {
            text += MWGui::ToolTips::getMiscString(ref->mRef.mOwner, "Owner");
            text += MWGui::ToolTips::getMiscString(ref->mBase->mScript, "Script");
        }

        info.enchant = ref->mBase->mEnchant;
        if (!info.enchant.empty())
            info.remainingEnchantCharge = ptr.getCellRef().mEnchantmentCharge;

        info.text = text;

        return info;
    }

    std::string Armor::getEnchantment (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return ref->mBase->mEnchant;
    }

    void Armor::applyEnchantment(const MWWorld::Ptr &ptr, const std::string& enchId, int enchCharge, const std::string& newName) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        ESM::Armor newItem = *ref->mBase;
        newItem.mId="";
        newItem.mName=newName;
        newItem.mData.mEnchant=enchCharge;
        newItem.mEnchant=enchId;
        const ESM::Armor *record = MWBase::Environment::get().getWorld()->createRecord (newItem);
        ref->mBase = record;
    }

    std::pair<int, std::string> Armor::canBeEquipped(const MWWorld::Ptr &ptr, const MWWorld::Ptr &npc) const
    {
        MWWorld::InventoryStore& invStore = MWWorld::Class::get(npc).getInventoryStore(npc);

        // slots that this item can be equipped in
        std::pair<std::vector<int>, bool> slots_ = MWWorld::Class::get(ptr).getEquipmentSlots(ptr);

        std::string npcRace = npc.get<ESM::NPC>()->mBase->mRace;

        for (std::vector<int>::const_iterator slot=slots_.first.begin();
            slot!=slots_.first.end(); ++slot)
        {

            // Beast races cannot equip shoes / boots, or full helms (head part vs hair part)
            const ESM::Race* race = MWBase::Environment::get().getWorld()->getStore().get<ESM::Race>().find(npcRace);
            if(race->mData.mFlags & ESM::Race::Beast)
            {
                std::vector<ESM::PartReference> parts = ptr.get<ESM::Armor>()->mBase->mParts.mParts;

                if(*slot == MWWorld::InventoryStore::Slot_Helmet)
                {
                    for(std::vector<ESM::PartReference>::iterator itr = parts.begin(); itr != parts.end(); ++itr)
                    {
                        if((*itr).mPart == ESM::PRT_Head)
                        {
                            return std::make_pair(0, "#{sNotifyMessage13}");
                        }
                    }
                }

                if (*slot == MWWorld::InventoryStore::Slot_Boots)
                {
                    for(std::vector<ESM::PartReference>::iterator itr = parts.begin(); itr != parts.end(); ++itr)
                    {
                        if((*itr).mPart == ESM::PRT_LFoot || (*itr).mPart == ESM::PRT_RFoot)
                        {
                            return std::make_pair(0, "#{sNotifyMessage14}");
                        }
                    }
                }
            }

            if(*slot == MWWorld::InventoryStore::Slot_CarriedLeft)
            {
                MWWorld::ContainerStoreIterator weapon = invStore.getSlot(MWWorld::InventoryStore::Slot_CarriedRight);

                if(weapon == invStore.end())
                    return std::make_pair(1,"");

                if(weapon->getTypeName() == typeid(ESM::Weapon).name() &&
                        (weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::LongBladeTwoHand ||
                weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::BluntTwoClose || 
                weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::BluntTwoWide || 
                weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::SpearTwoWide ||
                weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::AxeTwoHand || 
                weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::MarksmanBow || 
                weapon->get<ESM::Weapon>()->mBase->mData.mType == ESM::Weapon::MarksmanCrossbow))
                {
                    return std::make_pair(3,"");
                }
                return std::make_pair(1,"");
            }
        }
        return std::make_pair(1,"");
    }

    boost::shared_ptr<MWWorld::Action> Armor::use (const MWWorld::Ptr& ptr) const
    {
        boost::shared_ptr<MWWorld::Action> action(new MWWorld::ActionEquip(ptr));

        action->setSound(getUpSoundId(ptr));

        return action;
    }

    MWWorld::Ptr
    Armor::copyToCellImpl(const MWWorld::Ptr &ptr, MWWorld::CellStore &cell) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();

        return MWWorld::Ptr(&cell.mArmors.insert(*ref), &cell);
    }

    float Armor::getEnchantmentPoints (const MWWorld::Ptr& ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
                ptr.get<ESM::Armor>();

        return ref->mBase->mData.mEnchant/10.f;
    }

    bool Armor::canSell (const MWWorld::Ptr& item, int npcServices) const
    {
        return npcServices & ESM::NPC::Armor;
    }

    float Armor::getWeight(const MWWorld::Ptr &ptr) const
    {
        MWWorld::LiveCellRef<ESM::Armor> *ref =
            ptr.get<ESM::Armor>();
        return ref->mBase->mData.mWeight;
    }
}