// MassBuilderSaveTool
// Copyright (C) 2021 Guillaume Jacquemin
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

#include <cstring>

#include <algorithm>

#include <Corrade/Containers/Array.h>
#include <Corrade/Utility/Directory.h>

#include "../UESaveFile/Types/ArrayProperty.h"
#include "../UESaveFile/Types/BoolProperty.h"
#include "../UESaveFile/Types/ByteProperty.h"
#include "../UESaveFile/Types/ColourStructProperty.h"
#include "../UESaveFile/Types/FloatProperty.h"
#include "../UESaveFile/Types/GenericStructProperty.h"
#include "../UESaveFile/Types/IntProperty.h"
#include "../UESaveFile/Types/RotatorStructProperty.h"
#include "../UESaveFile/Types/StringProperty.h"
#include "../UESaveFile/Types/VectorStructProperty.h"
#include "../UESaveFile/Types/Vector2DStructProperty.h"

#include "Mass.h"

std::string Mass::_lastError;

Mass::Mass(const std::string& path) {
    _folder = Utility::Directory::path(path);
    _filename = Utility::Directory::filename(path);

    refreshValues();
}

auto Mass::lastError() -> std::string const& {
    return _lastError;
}

auto Mass::getNameFromFile(const std::string& path) -> Containers::Optional<std::string> {
    if(!Utility::Directory::exists(path)) {
        _lastError = path + " couldn't be found.";
        return Containers::NullOpt;
    }

    UESaveFile mass{path};

    if(!mass.valid()) {
        _lastError = "The unit file seems to be corrupt.";
        return Containers::NullOpt;
    }

    auto unit_data = mass.at<GenericStructProperty>("UnitData");

    if(!unit_data) {
        _lastError = "Couldn't find unit data in the file.";
        return Containers::NullOpt;
    }

    auto name_prop = unit_data->at<StringProperty>("Name_45_A037C5D54E53456407BDF091344529BB");

    if(!name_prop) {
        _lastError = "Couldn't find the name in the file.";
        return Containers::NullOpt;
    }

    return name_prop->value;
}

void Mass::refreshValues() {
    if(!Utility::Directory::exists(Utility::Directory::join(_folder, _filename))) {
        _state = State::Empty;
        return;
    }

    if(!_mass) {
        _mass.emplace(Utility::Directory::join(_folder, _filename));
        if(!_mass->valid()) {
            _state = State::Invalid;
            return;
        }
    }
    else {
        if(!_mass->reloadData()) {
            _state = State::Invalid;
            return;
        }
    }

    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto name_prop = unit_data->at<StringProperty>("Name_45_A037C5D54E53456407BDF091344529BB");

    if(!name_prop) {
        _name = Containers::NullOpt;
        _state = State::Invalid;
        return;
    }

    _name = name_prop->value;

    getJointSliders();
    if(_state == State::Invalid) {
        return;
    }

    getFrameStyles();
    if(_state == State::Invalid) {
        return;
    }

    getEyeFlareColour();
    if(_state == State::Invalid) {
        return;
    }

    getFrameCustomStyles();
    if(_state == State::Invalid) {
        return;
    }

    getArmourParts();
    if(_state == State::Invalid) {
        return;
    }

    getArmourCustomStyles();
    if(_state == State::Invalid) {
        return;
    }

    // TODO: weapons

    if(!_demo)
    {
        getGlobalStyles();
    }

    // TODO: tuning

    auto account_prop = _mass->at<StringProperty>("Account");
    if(!account_prop) {
        _state = State::Invalid;
        return;
    }

    _steamId = account_prop->value;

    _state = State::Valid;
}

auto Mass::filename() -> std::string const&{
    return _filename;
}

auto Mass::name() -> Containers::Optional<std::string> const& {
    return _name;
}

auto Mass::setName(std::string new_name) -> bool {
    _name = new_name;

    auto unit_data = _mass->at<GenericStructProperty>("UnitData");

    if(!unit_data) {
        _state = State::Invalid;
        return false;
    }

    auto name_prop = unit_data->at<StringProperty>("Name_45_A037C5D54E53456407BDF091344529BB");

    if(!name_prop) {
        _state = State::Invalid;
        return false;
    }

    name_prop->value = std::move(new_name);

    return _mass->saveToFile();
}

auto Mass::state() -> State {
    return _state;
}

auto Mass::demo() const -> bool {
    return _demo;
}

auto Mass::dirty() const -> bool {
    return _dirty;
}

void Mass::setDirty(bool dirty) {
    _dirty = dirty;
}

auto Mass::jointSliders() -> Joints& {
    return _frame.joints;
}

void Mass::getJointSliders() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto frame_prop = unit_data->at<GenericStructProperty>("Frame_3_F92B0F6A44A15088AF7F41B9FF290653");
    if(!frame_prop) {
        _state = State::Invalid;
        return;
    }

    auto length = frame_prop->at<FloatProperty>("NeckLength_6_ED6AF79849C27CD1A9D523A09E2BFE58");
    _frame.joints.neck = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("BodyLength_7_C16287754CBA96C93BAE36A5C154996A");
    _frame.joints.body = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("ShoulderLength_8_220EDF304F1C1226F0D8D39117FB3883");
    _frame.joints.shoulders = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("HipLength_14_02AEEEAC4376087B9C51F0AA7CC92818");
    _frame.joints.hips = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("ArmUpperLength_10_249FDA3E4F3B399E7B9E5C9B7C765EAE");
    _frame.joints.upperArms = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("ArmLowerLength_12_ACD0F02745C28882619376926292FB36");
    _frame.joints.lowerArms = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("LegUpperLength_16_A7C4C71249A3776F7A543D96819C0C61");
    _frame.joints.upperLegs = (length ? length->value : 0.0f);
    length = frame_prop->at<FloatProperty>("LegLowerLength_18_D2DF39964EA0F2A2129D0491B08A032F");
    _frame.joints.lowerLegs = (length ? length->value : 0.0f);
}

auto Mass::writeJointSliders() -> bool {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");

    if(!unit_data) {
        _state = State::Invalid;
        _lastError = "No unit data in " + _filename;
        return false;
    }

    auto frame_prop = unit_data->at<GenericStructProperty>("Frame_3_F92B0F6A44A15088AF7F41B9FF290653");

    if(!frame_prop) {
        _state = State::Invalid;
        _lastError = "No frame data in " + _filename;
        return false;
    }

    auto length = frame_prop->at<FloatProperty>("NeckLength_6_ED6AF79849C27CD1A9D523A09E2BFE58");
    if(!length && _frame.joints.neck != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("NeckLength_6_ED6AF79849C27CD1A9D523A09E2BFE58");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.neck;
    }

    length = frame_prop->at<FloatProperty>("BodyLength_7_C16287754CBA96C93BAE36A5C154996A");
    if(!length && _frame.joints.body != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("BodyLength_7_C16287754CBA96C93BAE36A5C154996A");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.body;
    }

    length = frame_prop->at<FloatProperty>("ShoulderLength_8_220EDF304F1C1226F0D8D39117FB3883");
    if(!length && _frame.joints.shoulders != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("ShoulderLength_8_220EDF304F1C1226F0D8D39117FB3883");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.shoulders;
    }

    length = frame_prop->at<FloatProperty>("HipLength_14_02AEEEAC4376087B9C51F0AA7CC92818");
    if(!length && _frame.joints.hips != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("HipLength_14_02AEEEAC4376087B9C51F0AA7CC92818");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.hips;
    }

    length = frame_prop->at<FloatProperty>("ArmUpperLength_10_249FDA3E4F3B399E7B9E5C9B7C765EAE");
    if(!length && _frame.joints.upperArms != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("ArmUpperLength_10_249FDA3E4F3B399E7B9E5C9B7C765EAE");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.upperArms;
    }

    length = frame_prop->at<FloatProperty>("ArmLowerLength_12_ACD0F02745C28882619376926292FB36");
    if(!length && _frame.joints.lowerArms != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("ArmLowerLength_12_ACD0F02745C28882619376926292FB36");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.lowerArms;
    }

    length = frame_prop->at<FloatProperty>("LegUpperLength_16_A7C4C71249A3776F7A543D96819C0C61");
    if(!length && _frame.joints.upperLegs != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("LegUpperLength_16_A7C4C71249A3776F7A543D96819C0C61");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.upperLegs;
    }

    length = frame_prop->at<FloatProperty>("LegLowerLength_18_D2DF39964EA0F2A2129D0491B08A032F");
    if(!length && _frame.joints.lowerLegs != 0.0f) {
        length = new FloatProperty;
        auto length_prop = FloatProperty::ptr{length};
        length_prop->name.emplace("LegLowerLength_18_D2DF39964EA0F2A2129D0491B08A032F");
        arrayAppend(frame_prop->properties, std::move(length_prop));
    }
    if(length) {
        length->value = _frame.joints.lowerLegs;
    }

    if(!_mass->saveToFile()) {
        _lastError = "Couldn't write data to " + _filename;
        return false;
    }

    return true;
}

auto Mass::frameStyles() -> Containers::StaticArrayView<4, Int> {
    return _frame.styles;
}

void Mass::getFrameStyles() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto frame_prop = unit_data->at<GenericStructProperty>("Frame_3_F92B0F6A44A15088AF7F41B9FF290653");
    if(!frame_prop) {
        _state = State::Invalid;
        return;
    }

    auto frame_styles = frame_prop->at<ArrayProperty>("Styles_32_00A3B3284B37F1E7819458844A20EB48");
    if(!frame_styles) {
        _state = State::Invalid;
        return;
    }

    if(frame_styles->items.size() != 4) {
        _state = State::Invalid;
        return;
    }

    for(UnsignedInt i = 0; i < 4; i++) {
        _frame.styles[i] = frame_styles->at<IntProperty>(i)->value;
    }
}

auto Mass::writeFrameStyles() -> bool {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        _lastError = "No unit data in " + _filename;
        return false;
    }

    auto frame = unit_data->at<GenericStructProperty>("Frame_3_F92B0F6A44A15088AF7F41B9FF290653");
    if(!frame) {
        _state = State::Invalid;
        _lastError = "No frame data in " + _filename;
        return false;
    }

    auto frame_styles = frame->at<ArrayProperty>("Styles_32_00A3B3284B37F1E7819458844A20EB48");
    if(!frame_styles) {
        _state = State::Invalid;
        _lastError = "No frame styles in " + _filename;
        return false;
    }

    for(UnsignedInt i = 0; i < frame_styles->items.size(); i++) {
        frame_styles->at<IntProperty>(i)->value = _frame.styles[i];
    }

    if(!_mass->saveToFile()) {
        _lastError = "Couldn't write data to " + _filename;
        return false;
    }

    return true;
}

auto Mass::eyeFlareColour() -> Color4& {
    return _frame.eyeFlare;
}

void Mass::getEyeFlareColour() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto frame_prop = unit_data->at<GenericStructProperty>("Frame_3_F92B0F6A44A15088AF7F41B9FF290653");
    if(!frame_prop) {
        _state = State::Invalid;
        return;
    }

    auto eye_flare_prop = frame_prop->at<ColourStructProperty>("EyeFlareColor_36_AF79999C40FCA0E88A2F9A84488A38CA");
    if(!eye_flare_prop) {
        _state = State::Invalid;
        return;
    }

    _frame.eyeFlare = Color4{eye_flare_prop->r, eye_flare_prop->g, eye_flare_prop->b, eye_flare_prop->a};
}

auto Mass::writeEyeFlareColour() -> bool {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return false;
    }

    auto frame = unit_data->at<GenericStructProperty>("Frame_3_F92B0F6A44A15088AF7F41B9FF290653");
    if(!frame) {
        _state = State::Invalid;
        return false;
    }

    auto eye_flare_prop = frame->at<ColourStructProperty>("EyeFlareColor_36_AF79999C40FCA0E88A2F9A84488A38CA");
    if(!eye_flare_prop) {
        _state = State::Invalid;
        return false;
    }

    eye_flare_prop->r = _frame.eyeFlare.r();
    eye_flare_prop->g = _frame.eyeFlare.g();
    eye_flare_prop->b = _frame.eyeFlare.b();
    eye_flare_prop->a = _frame.eyeFlare.a();

    return _mass->saveToFile();
}

auto Mass::frameCustomStyles() -> Containers::StaticArrayView<16, CustomStyle> {
    return _frame.customStyles;
}

void Mass::getFrameCustomStyles() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto frame_styles = unit_data->at<ArrayProperty>("FrameStyle_44_04A44C9440363CCEC5443D98BFAF22AA");
    if(!frame_styles) {
        _state = State::Invalid;
        return;
    }

    if(frame_styles->items.size() != 16) {
        _state = State::Invalid;
        return;
    }

    for(UnsignedInt i = 0; i < frame_styles->items.size(); i++) {
        auto style_prop = frame_styles->at<GenericStructProperty>(i);

        CustomStyle style;

        style.name = style_prop->at<StringProperty>("Name_27_1532115A46EF2B2FA283908DF561A86B")->value;
        auto colour_prop = style_prop->at<ColourStructProperty>("Color_5_F0D383DF40474C9464AE48A0984A212E");
        style.colour = Color4{colour_prop->r, colour_prop->g, colour_prop->b, colour_prop->a};
        style.metallic = style_prop->at<FloatProperty>("Metallic_10_0A4CD1E4482CBF41CA61D0A856DE90B9")->value;
        style.gloss = style_prop->at<FloatProperty>("Gloss_11_9769599842CC275A401C4282A236E240")->value;
        style.glow = colour_prop->a == 0.0f ? false : true;

        style.patternId = style_prop->at<IntProperty>("PatternID_14_516DB85641DAF8ECFD2920BE2BDF1311")->value;
        style.opacity = style_prop->at<FloatProperty>("Opacity_30_53BD060B4DFCA1C92302D6A0F7831131")->value;
        style.offset = Vector2{
                style_prop->at<FloatProperty>("OffsetX_23_70FC2E814C64BBB82452748D2AF9CD48")->value,
                style_prop->at<FloatProperty>("OffsetY_24_5E1F866C4C054D9B2EE337ADC180C17F")->value
        };
        style.rotation = style_prop->at<FloatProperty>("Rotation_25_EC2DFAD84AD0A6BD3FA841ACD52EDD6D")->value;
        style.scale = style_prop->at<FloatProperty>("Scale_26_19DF0708409262183E1247B317137671")->value;

        _frame.customStyles[i] = std::move(style);
    }
}

auto Mass::writeFrameCustomStyle(UnsignedLong index) -> bool {
    if(index > _frame.customStyles.size()) {
        return false;
    }

    return setCustomStyle(_frame.customStyles[index], index, "FrameStyle_44_04A44C9440363CCEC5443D98BFAF22AA");
}

auto Mass::armourParts() -> Containers::StaticArrayView<38, ArmourPart> {
    return _armour.parts;
}

void Mass::getArmourParts() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto armour_array = unit_data->at<ArrayProperty>("Armor_10_12E266C44116DDAF57E99ABB575A4B3C");
    if(!armour_array) {
        _state = State::Invalid;
        return;
    }

    if(armour_array->items.size() != 38) {
        _state = State::Invalid;
        return;
    }

    for(UnsignedInt i = 0; i < armour_array->items.size(); i++) {
        auto part_prop = armour_array->at<GenericStructProperty>(i);

        ArmourPart part;

        part.slot = part_prop->at<ByteProperty>("Slot_3_408BA56F4C9605C7E805CF91B642249C")->enumValue;
        part.id = part_prop->at<IntProperty>("ID_5_ACD101864D3481DE96EDACACC09BDD25")->value;

        auto part_styles = part_prop->at<ArrayProperty>("Styles_47_3E31870441DFD7DB8BEE5C85C26B365B");
        if(!part_styles) {
            _state = State::Invalid;
            return;
        }

        if(part_styles->items.size() != 4) {
            _state = State::Invalid;
            return;
        }

        for(UnsignedInt j = 0; j < part_styles->items.size(); j++) {
            part.styles[j] = part_styles->at<IntProperty>(j)->value;
        }

        auto decals_array = part_prop->at<ArrayProperty>("Decals_42_F358794A4F18497970F56BA9627D3603");
        if(!decals_array) {
            _state = State::Invalid;
            return;
        }

        if(decals_array->items.size() != 8) {
            part.demoDecals = decals_array->items.size();
            _demo = true;
        }

        for(UnsignedInt j = 0; j < decals_array->items.size(); j++) {
            auto decal_prop = decals_array->at<GenericStructProperty>(j);

            Decal decal;

            decal.id = decal_prop->at<IntProperty>("ID_3_694C0B35404D8A3168AEC89026BC8CF9")->value;
            auto colour_prop = decal_prop->at<ColourStructProperty>("Color_8_1B0B9D2B43DA6AAB9FA549B374D3E606");
            decal.colour = Color4{colour_prop->r, colour_prop->g, colour_prop->b, colour_prop->a};
            auto pos_prop = decal_prop->at<VectorStructProperty>("Position_41_022C8FE84E1AAFE587261E88F2C72250");
            decal.position = Vector3{pos_prop->x, pos_prop->y, pos_prop->z};
            auto u_prop = decal_prop->at<VectorStructProperty>("UAxis_37_EBEB715F45491AECACCC07A1AE4646D1");
            decal.uAxis = Vector3{u_prop->x, u_prop->y, u_prop->z};
            auto v_prop = decal_prop->at<VectorStructProperty>("VAxis_39_C31EB2664EE202CAECFBBB84100B5E35");
            decal.vAxis = Vector3{v_prop->x, v_prop->y, v_prop->z};
            auto offset_prop = decal_prop->at<Vector2DStructProperty>("Offset_29_B02BBBB74FC60F5EDBEBAB8020738020");
            decal.offset = Vector2{offset_prop->x, offset_prop->y};
            decal.scale = decal_prop->at<FloatProperty>("Scale_32_959D1C2747AFD8D62808468235CBBA40")->value;
            decal.rotation = decal_prop->at<FloatProperty>("Rotation_27_12D7C314493D203D5C2326A03C5F910F")->value;
            decal.flip = decal_prop->at<BoolProperty>("Flip_35_CECCFB184CCD9412BD93FE9A8B656BE1")->value;
            decal.wrap = decal_prop->at<BoolProperty>("Wrap_43_A7C68CDF4A92AF2ECDA53F953EE7CA62")->value;

            part.decals[j] = decal;
        }

        if(!_demo) {
            auto accs_array = part_prop->at<ArrayProperty>("Accessories_52_D902DD4241FA0050C2529596255153F3");
            if(!accs_array) {
                _demo = true;
            }

            if(accs_array->items.size() != 8) {
                _state = State::Invalid;
                return;
            }

            for(UnsignedInt j = 0; j < accs_array->items.size(); j++) {
                auto acc_prop = accs_array->at<GenericStructProperty>(j);

                Accessory accessory;

                accessory.attachIndex = acc_prop->at<IntProperty>("AttachIndex_2_4AFCF6024E4BA7426C6B9F80B8179D20")->value;
                accessory.id = acc_prop->at<IntProperty>("ID_4_5757B32647BAE263266259B8A7DFFFC1")->value;
                auto acc_styles = acc_prop->at<ArrayProperty>("Styles_7_91DEB0F24E24D13FC9472882C11D0DFD");
                for(UnsignedInt k = 0; k < acc_styles->items.size(); k++) {
                    accessory.styles[k] = acc_styles->at<IntProperty>(k)->value;
                }
                auto rel_pos_prop = acc_prop->at<VectorStructProperty>("RelativePosition_14_BE8FB2A94074F34B3EDA6683B227D3A1");
                accessory.relativePosition = Vector3{rel_pos_prop->x, rel_pos_prop->y, rel_pos_prop->z};
                auto rel_pos_offset_prop = acc_prop->at<VectorStructProperty>("RelativePositionOffset_15_98FD0CE74E44BBAFC2D46FB4CA4E0ED6");
                accessory.relativePositionOffset = Vector3{rel_pos_offset_prop->x, rel_pos_offset_prop->y, rel_pos_offset_prop->z};
                auto rel_rot_prop = acc_prop->at<RotatorStructProperty>("RelativeRotation_20_C78C73274E6E78E7878F8C98ECA342C0");
                accessory.relativeRotation = Vector3{rel_rot_prop->x, rel_rot_prop->y, rel_rot_prop->z};
                auto rel_rot_offset_prop = acc_prop->at<RotatorStructProperty>("RelativeRotationOffset_21_E07FA0EC46728B7BA763C6861249ABAA");
                accessory.relativeRotationOffset = Vector3{rel_rot_offset_prop->x, rel_rot_offset_prop->y, rel_rot_offset_prop->z};
                auto local_scale_prop = acc_prop->at<VectorStructProperty>("LocalScale_24_DC2D93A742A41A46E7E61D988F15ED53");
                accessory.localScale = Vector3{local_scale_prop->x, local_scale_prop->y, local_scale_prop->z};

                part.accessories[j] = std::move(accessory);
            }
        }

        _armour.parts[i] = std::move(part);
    }
}

auto Mass::writeArmourPart(UnsignedLong index) -> bool {
    if(index > _armour.parts.size()) {
        return false;
    }

    auto unit_data = _mass->at<GenericStructProperty>("UnitData");

    auto armour_array = unit_data->at<ArrayProperty>("Armor_10_12E266C44116DDAF57E99ABB575A4B3C");

    auto part_prop = armour_array->at<GenericStructProperty>(index);

    auto& part = _armour.parts[index];

    if(part_prop->at<ByteProperty>("Slot_3_408BA56F4C9605C7E805CF91B642249C")->enumValue != part.slot) {
        return false;
    }

    part_prop->at<IntProperty>("ID_5_ACD101864D3481DE96EDACACC09BDD25")->value = part.id;

    auto part_styles = part_prop->at<ArrayProperty>("Styles_47_3E31870441DFD7DB8BEE5C85C26B365B");
    for(UnsignedInt i = 0; i < part.styles.size(); i++) {
        part_styles->at<IntProperty>(i)->value = part.styles[i];
    }

    auto decals_array = part_prop->at<ArrayProperty>("Decals_42_F358794A4F18497970F56BA9627D3603");
    for(UnsignedInt i = 0; i < decals_array->items.size(); i++) {
        auto decal_prop = decals_array->at<GenericStructProperty>(i);

        auto& decal = part.decals[i];

        decal_prop->at<IntProperty>("ID_3_694C0B35404D8A3168AEC89026BC8CF9")->value = decal.id;
        auto colour_prop = decal_prop->at<ColourStructProperty>("Color_8_1B0B9D2B43DA6AAB9FA549B374D3E606");
        colour_prop->r = decal.colour.r();
        colour_prop->g = decal.colour.g();
        colour_prop->b = decal.colour.b();
        colour_prop->a = decal.colour.a();
        auto pos_prop = decal_prop->at<VectorStructProperty>("Position_41_022C8FE84E1AAFE587261E88F2C72250");
        pos_prop->x = decal.position.x();
        pos_prop->y = decal.position.y();
        pos_prop->z = decal.position.z();
        auto u_prop = decal_prop->at<VectorStructProperty>("UAxis_37_EBEB715F45491AECACCC07A1AE4646D1");
        u_prop->x = decal.uAxis.x();
        u_prop->y = decal.uAxis.y();
        u_prop->z = decal.uAxis.z();
        auto v_prop = decal_prop->at<VectorStructProperty>("VAxis_39_C31EB2664EE202CAECFBBB84100B5E35");
        v_prop->x = decal.vAxis.x();
        v_prop->y = decal.vAxis.y();
        v_prop->z = decal.vAxis.z();
        auto offset_prop = decal_prop->at<Vector2DStructProperty>("Offset_29_B02BBBB74FC60F5EDBEBAB8020738020");
        offset_prop->x = decal.offset.x();
        offset_prop->y = decal.offset.y();
        decal_prop->at<FloatProperty>("Scale_32_959D1C2747AFD8D62808468235CBBA40")->value = decal.scale;
        decal_prop->at<FloatProperty>("Rotation_27_12D7C314493D203D5C2326A03C5F910F")->value = decal.rotation;
        decal_prop->at<BoolProperty>("Flip_35_CECCFB184CCD9412BD93FE9A8B656BE1")->value = decal.flip;
        decal_prop->at<BoolProperty>("Wrap_43_A7C68CDF4A92AF2ECDA53F953EE7CA62")->value = decal.wrap;
    }

    if(!_demo) {
        auto accs_array = part_prop->at<ArrayProperty>("Accessories_52_D902DD4241FA0050C2529596255153F3");

        for(UnsignedInt i = 0; i < accs_array->items.size(); i++) {
            auto acc_prop = accs_array->at<GenericStructProperty>(i);

            auto& accessory = part.accessories[i];

            acc_prop->at<IntProperty>("AttachIndex_2_4AFCF6024E4BA7426C6B9F80B8179D20")->value = accessory.attachIndex;
            acc_prop->at<IntProperty>("ID_4_5757B32647BAE263266259B8A7DFFFC1")->value = accessory.id;
            auto acc_styles = acc_prop->at<ArrayProperty>("Styles_7_91DEB0F24E24D13FC9472882C11D0DFD");
            for(UnsignedInt j = 0; j < acc_styles->items.size(); j++) {
                acc_styles->at<IntProperty>(j)->value = accessory.styles[j];
            }
            auto rel_pos_prop = acc_prop->at<VectorStructProperty>("RelativePosition_14_BE8FB2A94074F34B3EDA6683B227D3A1");
            rel_pos_prop->x = accessory.relativePosition.x();
            rel_pos_prop->y = accessory.relativePosition.y();
            rel_pos_prop->z = accessory.relativePosition.z();
            auto rel_pos_offset_prop = acc_prop->at<VectorStructProperty>("RelativePositionOffset_15_98FD0CE74E44BBAFC2D46FB4CA4E0ED6");
            rel_pos_offset_prop->x = accessory.relativePositionOffset.x();
            rel_pos_offset_prop->y = accessory.relativePositionOffset.y();
            rel_pos_offset_prop->z = accessory.relativePositionOffset.z();
            auto rel_rot_prop = acc_prop->at<RotatorStructProperty>("RelativeRotation_20_C78C73274E6E78E7878F8C98ECA342C0");
            rel_rot_prop->x = accessory.relativeRotation.x();
            rel_rot_prop->y = accessory.relativeRotation.y();
            rel_rot_prop->z = accessory.relativeRotation.z();
            auto rel_rot_offset_prop = acc_prop->at<RotatorStructProperty>("RelativeRotationOffset_21_E07FA0EC46728B7BA763C6861249ABAA");
            rel_rot_offset_prop->x = accessory.relativeRotationOffset.x();
            rel_rot_offset_prop->y = accessory.relativeRotationOffset.y();
            rel_rot_offset_prop->z = accessory.relativeRotationOffset.z();
            auto local_scale_prop = acc_prop->at<VectorStructProperty>("LocalScale_24_DC2D93A742A41A46E7E61D988F15ED53");
            local_scale_prop->x = accessory.localScale.x();
            local_scale_prop->y = accessory.localScale.y();
            local_scale_prop->z = accessory.localScale.z();
        }
    }

    return _mass->saveToFile();
}

auto Mass::armourCustomStyles() -> Containers::StaticArrayView<16, CustomStyle> {
    return _armour.customStyles;
}

void Mass::getArmourCustomStyles() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto armour_styles = unit_data->at<ArrayProperty>("ArmorStyle_42_E2F6AC3647788CB366BD469B3B7E899E");
    if(!armour_styles) {
        _state = State::Invalid;
        return;
    }

    if(armour_styles->items.size() != 16) {
        _state = State::Invalid;
        return;
    }

    for(UnsignedInt i = 0; i < armour_styles->items.size(); i++) {
        auto style_prop = armour_styles->at<GenericStructProperty>(i);

        CustomStyle style;

        style.name = style_prop->at<StringProperty>("Name_27_1532115A46EF2B2FA283908DF561A86B")->value;
        auto colour_prop = style_prop->at<ColourStructProperty>("Color_5_F0D383DF40474C9464AE48A0984A212E");
        style.colour = Color4{colour_prop->r, colour_prop->g, colour_prop->b, colour_prop->a};
        style.metallic = style_prop->at<FloatProperty>("Metallic_10_0A4CD1E4482CBF41CA61D0A856DE90B9")->value;
        style.gloss = style_prop->at<FloatProperty>("Gloss_11_9769599842CC275A401C4282A236E240")->value;
        style.glow = colour_prop->a == 0.0f ? false : true;

        style.patternId = style_prop->at<IntProperty>("PatternID_14_516DB85641DAF8ECFD2920BE2BDF1311")->value;
        style.opacity = style_prop->at<FloatProperty>("Opacity_30_53BD060B4DFCA1C92302D6A0F7831131")->value;
        style.offset = Vector2{
                style_prop->at<FloatProperty>("OffsetX_23_70FC2E814C64BBB82452748D2AF9CD48")->value,
                style_prop->at<FloatProperty>("OffsetY_24_5E1F866C4C054D9B2EE337ADC180C17F")->value
        };
        style.rotation = style_prop->at<FloatProperty>("Rotation_25_EC2DFAD84AD0A6BD3FA841ACD52EDD6D")->value;
        style.scale = style_prop->at<FloatProperty>("Scale_26_19DF0708409262183E1247B317137671")->value;

        _armour.customStyles[i] = std::move(style);
    }
}

auto Mass::writeArmourCustomStyle(UnsignedLong index) -> bool {
    if(index > _armour.customStyles.size()) {
        return false;
    }

    return setCustomStyle(_armour.customStyles[index], index, "ArmorStyle_42_E2F6AC3647788CB366BD469B3B7E899E");
}

auto Mass::globalStyles() -> Containers::StaticArrayView<16, CustomStyle> {
    return _globalStyles;
}

void Mass::getGlobalStyles() {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return;
    }

    auto global_styles = unit_data->at<ArrayProperty>("GlobalStyles_57_6A681C114035241F7BDAAE9B43A8BF1B");
    if(!global_styles) {
        _state = State::Invalid;
        return;
    }

    if(global_styles->items.size() != 16) {
        _state = State::Invalid;
        return;
    }

    for(UnsignedInt i = 0; i < global_styles->items.size(); i++) {
        auto style_prop = global_styles->at<GenericStructProperty>(i);

        CustomStyle style;

        style.name = style_prop->at<StringProperty>("Name_27_1532115A46EF2B2FA283908DF561A86B")->value;
        auto colour_prop = style_prop->at<ColourStructProperty>("Color_5_F0D383DF40474C9464AE48A0984A212E");
        style.colour = Color4{colour_prop->r, colour_prop->g, colour_prop->b, colour_prop->a};
        style.metallic = style_prop->at<FloatProperty>("Metallic_10_0A4CD1E4482CBF41CA61D0A856DE90B9")->value;
        style.gloss = style_prop->at<FloatProperty>("Gloss_11_9769599842CC275A401C4282A236E240")->value;
        style.glow = colour_prop->a == 0.0f ? false : true;

        style.patternId = style_prop->at<IntProperty>("PatternID_14_516DB85641DAF8ECFD2920BE2BDF1311")->value;
        style.opacity = style_prop->at<FloatProperty>("Opacity_30_53BD060B4DFCA1C92302D6A0F7831131")->value;
        style.offset = Vector2{
                style_prop->at<FloatProperty>("OffsetX_23_70FC2E814C64BBB82452748D2AF9CD48")->value,
                style_prop->at<FloatProperty>("OffsetY_24_5E1F866C4C054D9B2EE337ADC180C17F")->value
        };
        style.rotation = style_prop->at<FloatProperty>("Rotation_25_EC2DFAD84AD0A6BD3FA841ACD52EDD6D")->value;
        style.scale = style_prop->at<FloatProperty>("Scale_26_19DF0708409262183E1247B317137671")->value;

        _globalStyles[i] = std::move(style);
    }
}

auto Mass::writeGlobalStyle(UnsignedLong index) -> bool {
    if(index > _globalStyles.size()) {
        return false;
    }

    return setCustomStyle(_globalStyles[index], index, "GlobalStyles_57_6A681C114035241F7BDAAE9B43A8BF1B");
}

auto Mass::updateSteamId(const std::string& steam_id) -> bool {
    _steamId = steam_id;

    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return false;
    }

    auto account_prop = unit_data->at<StringProperty>("Account");
    if(!account_prop) {
        _state = State::Invalid;
        return false;
    }

    account_prop->value = steam_id;

    return _mass->saveToFile();
}

auto Mass::setCustomStyle(const CustomStyle& style, UnsignedLong index, const char* prop_name) -> bool {
    auto unit_data = _mass->at<GenericStructProperty>("UnitData");
    if(!unit_data) {
        _state = State::Invalid;
        return false;
    }

    auto frame_styles = unit_data->at<ArrayProperty>(prop_name);
    if(!frame_styles) {
        _state = State::Invalid;
        return false;
    }

    auto style_prop = frame_styles->at<GenericStructProperty>(index);

    style_prop->at<StringProperty>("Name_27_1532115A46EF2B2FA283908DF561A86B")->value = style.name;
    auto colour_prop = style_prop->at<ColourStructProperty>("Color_5_F0D383DF40474C9464AE48A0984A212E");
    colour_prop->r = style.colour.r();
    colour_prop->g = style.colour.g();
    colour_prop->b = style.colour.b();
    colour_prop->a = style.glow ? 1.0f : 0.0f;
    style_prop->at<FloatProperty>("Metallic_10_0A4CD1E4482CBF41CA61D0A856DE90B9")->value = style.metallic;
    style_prop->at<FloatProperty>("Gloss_11_9769599842CC275A401C4282A236E240")->value = style.gloss;

    style_prop->at<IntProperty>("PatternID_14_516DB85641DAF8ECFD2920BE2BDF1311")->value = style.patternId;
    style_prop->at<FloatProperty>("Opacity_30_53BD060B4DFCA1C92302D6A0F7831131")->value = style.opacity;
    style_prop->at<FloatProperty>("OffsetX_23_70FC2E814C64BBB82452748D2AF9CD48")->value = style.offset.x();
    style_prop->at<FloatProperty>("OffsetY_24_5E1F866C4C054D9B2EE337ADC180C17F")->value = style.offset.y();
    style_prop->at<FloatProperty>("Rotation_25_EC2DFAD84AD0A6BD3FA841ACD52EDD6D")->value = style.rotation;
    style_prop->at<FloatProperty>("Scale_26_19DF0708409262183E1247B317137671")->value = style.scale;

    return _mass->saveToFile();
}