/*
 * This file is part of the Flowee project
 * Copyright (C) 2025-2026 Tom Zander <tom@flowee.org>
 *
 * 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 <http://www.gnu.org/licenses/>.
 */
#include "BackupAccountInfo.h"
#include "BackupSyncModuleInfo.h"
#include "WalletData.h"

#include <FloweePay.h>

BackupAccountInfo::BackupAccountInfo(QObject *parent)
    : QObject{parent}
{}

AccountInfo *BackupAccountInfo::account() const
{
    return m_account;
}

void BackupAccountInfo::setAccount(AccountInfo *newAccount)
{
    if (m_account == newAccount)
        return;
    m_account = newAccount;

    if (m_walletData)
        disconnect(m_walletData, SIGNAL(lastSavedChanged()), this, SIGNAL(lastSavedChanged()));
    m_walletData = nullptr;
    if (m_account) {
        const auto wallets = BackupSyncModuleInfo::instance()->walletData();
        for (auto *wallet : wallets) {
            if (wallet->wallet() == m_account->wallet()) {
                m_walletData = wallet;
                m_walletData->deriveAuthKey();
                connect(m_walletData, SIGNAL(lastSavedChanged()), this, SIGNAL(lastSavedChanged()));
                connect(m_walletData, &WalletData::startUpload, [=]() {
                    setWalletUploadScheduled(false);
                });
                connect(m_walletData, &WalletData::storeWaitingForSync, this, [=]() {
                    setWalletUploadScheduled(true);
                });
                break;
            }
        }
    }
    emit lastSavedChanged();
    emit accountChanged();
}

QString BackupAccountInfo::lastSaved() const
{
    if (!m_walletData)
        return QString();
    if (m_walletData->lastSavedTime() == 0)
        return QString();
    QDateTime time = QDateTime::fromSecsSinceEpoch(m_walletData->lastSavedTime());
    return FloweePay::instance()->formatDateTime(time);
}

QString BackupAccountInfo::address() const
{
    if (!m_walletData)
        return QString();
    return m_walletData->fancyAddess();
}

void BackupAccountInfo::startBackup()
{
    // we'll be naughty and call restore first, to download the current
    // state (and apply it, should it be needed) before we upload the new state.
    if (m_walletData && !m_walletUploadScheduled)
        QTimer::singleShot(300, m_walletData, [=]() { m_walletData->restore(WalletData::BeforeSave); });
}

bool BackupAccountInfo::walletUploadScheduled() const
{
    return m_walletUploadScheduled;
}

void BackupAccountInfo::setWalletUploadScheduled(bool newWalletUploadScheduled)
{
    if (m_walletUploadScheduled == newWalletUploadScheduled)
        return;
    m_walletUploadScheduled = newWalletUploadScheduled;
    emit walletUploadScheduledChanged();
}