// MassBuilderSaveTool
// Copyright (C) 2021-2024 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 <Corrade/Containers/String.h>

#include "../../BinaryIo/Reader.h"
#include "../../BinaryIo/Writer.h"
#include "../PropertySerialiser.h"
#include "../../Logger/Logger.h"

#include "ArrayProperty.h"

namespace Gvas { namespace Serialisers {

Types::UnrealPropertyBase::ptr
ArrayProperty::deserialiseProperty(Containers::StringView name, Containers::StringView type, std::size_t value_length,
                                   BinaryIo::Reader& reader, PropertySerialiser& serialiser)
{
    Containers::String item_type;
    if(!reader.readUEString(item_type)) {
        LOG_ERROR_FORMAT("Couldn't read the item type of array property {}.", name);
        return nullptr;
    }

    char terminator;
    if(!reader.readChar(terminator) || terminator != '\0') {
        LOG_ERROR_FORMAT("Couldn't read a null byte in array property {}.", name);
        return nullptr;
    }

    std::uint32_t item_count;
    if(!reader.readUint32(item_count)) {
        LOG_ERROR_FORMAT("Couldn't read array property {}'s item count.", name);
        return nullptr;
    }

    auto prop = Containers::pointer<Types::ArrayProperty>();
    prop->itemType = Utility::move(item_type);
    prop->items = serialiser.readSet(reader, prop->itemType, item_count);

    return prop;
}

bool
ArrayProperty::serialiseProperty(Types::UnrealPropertyBase::ptr& prop, std::size_t& bytes_written,
                                 BinaryIo::Writer& writer, PropertySerialiser& serialiser)
{
    auto array_prop = dynamic_cast<Types::ArrayProperty*>(prop.get());
    if(!array_prop) {
        LOG_ERROR("The property is not a valid array property.");
        return false;
    }

    writer.writeUEStringToArray(array_prop->itemType);
    writer.writeValueToArray<char>('\0');
    bytes_written += writer.writeValueToArray<std::uint32_t>(std::uint32_t(array_prop->items.size()));

    std::size_t start_pos = writer.arrayPosition();
    std::size_t dummy_bytes_written = 0;
    bool ret = serialiser.writeSet(array_prop->items, array_prop->itemType, dummy_bytes_written, writer);
    bytes_written += writer.arrayPosition() - start_pos;

    return ret;
}

}}