//
// Created by rusakov on 26/09/2017.
// Contributed by andreev on 27/06/2019.
//

#include "encryptionevent.h"

#include "converters.h"
#include "logging.h"

#include <array>

static const std::array<QString, 1> encryptionStrings = { { QStringLiteral(
    "m.megolm.v1.aes-sha2") } };

namespace QMatrixClient
{
template <>
struct JsonConverter<EncryptionType>
{
    static EncryptionType load(const QJsonValue& jv)
    {
        const auto& encryptionString = jv.toString();
        for (auto it = encryptionStrings.begin(); it != encryptionStrings.end();
             ++it)
            if (encryptionString == *it)
                return EncryptionType(it - encryptionStrings.begin());

        qCWarning(EVENTS) << "Unknown EncryptionType: " << encryptionString;
        return EncryptionType::Undefined;
    }
};
} // namespace QMatrixClient

using namespace QMatrixClient;

EncryptionEventContent::EncryptionEventContent(const QJsonObject& json)
    : encryption(fromJson<EncryptionType>(json["algorithm"_ls]))
    , algorithm(sanitized(json["algorithm"_ls].toString()))
    , rotationPeriodMs(json["rotation_period_ms"_ls].toInt(604800000))
    , rotationPeriodMsgs(json["rotation_period_msgs"_ls].toInt(100))
{}

void EncryptionEventContent::fillJson(QJsonObject* o) const
{
    Q_ASSERT(o);
    Q_ASSERT_X(
        encryption != EncryptionType::Undefined, __FUNCTION__,
        "The key 'algorithm' must be explicit in EncryptionEventContent");
    if (encryption != EncryptionType::Undefined)
        o->insert(QStringLiteral("algorithm"), algorithm);
    o->insert(QStringLiteral("rotation_period_ms"), rotationPeriodMs);
    o->insert(QStringLiteral("rotation_period_msgs"), rotationPeriodMsgs);
}