/*
 * Copyright (C) 2023 Arseniy Movshev <dodoradio@outlook.com>
 * This file is part of sensorlogd, a sensor logger for the AsteroidOS smartwatch OS.
 *
 * sensorlogd 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.
 * sensorlogd 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 <QDebug>
#include <QFile>
#include <QTextStream>
#include <QDate>
#include <QSettings>
#include <QDBusInterface>
#include <QPointF>

#include <QtSensors/QStepCounterSensor>

#include "stepsDataLoader.h"
#include "../common.h"

StepsDataLoader::StepsDataLoader() : QObject()
{
    m_stepcounterSensor = new QStepCounterSensor(this);
    m_stepcounterSensor->start();
    connect(m_stepcounterSensor,SIGNAL(readingChanged()),this,SIGNAL(todayTotalChanged()));
    m_iface = new QDBusInterface("org.asteroid.sensorlogd.logger","/org/asteroid/sensorlogd/logger","", QDBusConnection::sessionBus(), this);
    if (!m_iface->isValid()) {
        qDebug()<<"interface is not valid";
    } else {
        qDebug()<<"interface is valid";
    }
}

int StepsDataLoader::getTodayTotal() {
    QSettings settings("asteroid", "sensorlogd");
    int steps =  m_stepcounterSensor->reading()->steps();
    if (steps < 1) {
        return getTotalForDate(QDate::currentDate());
    }
    return steps - settings.value("StepCounterPrivate/stepsOffset", 0).toInt();
}

int StepsDataLoader::getTotalForDate(QDate date) { // This is obvious garbage. This should really be abstracted and cached, so that every page doesn't have to reload the file from scratch.
    // The intention is to also add graph functionality at some point. The graph will be simplifying the data before loading it in - it would be worth caching the simplified data when it comes to that as well.
    QFile file(fileNameForDate(date, "stepCounter"));
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        qDebug() << "failed to open file";
        return 0;
    }
    QTextStream inStream(&file);
    QString line = "0";
    int i;
    while (!inStream.atEnd()) {
        line = inStream.readLine();
        qDebug() << line;
        i++;
    }
    file.close();
    return line.split(":")[1].toInt();
}

QVariant StepsDataLoader::getTodayData() {
    return getDataForDate(QDate::currentDate());
}

QVariant StepsDataLoader::getDataForDate(QDate date) {
    return QVariant::fromValue(getRawDataForDate(date));
}

QList<QPointF> StepsDataLoader::getRawDataForDate(QDate date) {
    QList<QPointF> m_filedata;
    QFile file(fileNameForDate(date, "stepCounter"));
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        qDebug() << "failed to open file";
        return m_filedata;
    }
    QTextStream inStream(&file);
    QString line;
    while (!inStream.atEnd()) {
        line = inStream.readLine();
        QPointF point;
        point.setX(line.split(":")[0].toInt());
        point.setY(line.split(":")[1].toInt());
        qDebug() << point;
        m_filedata.append(point);
    }
    file.close();
    return m_filedata;
}

QVariant StepsDataLoader::getDataFromTo(QDate date1, QDate date2) {
    QList<QPointF> filedata;
    if (date1 > date2) {
        QDate temp = date1;
        date1 = date2;
        date2 = temp;
    }
    for (QDate i = date1; i <= date2; i = i.addDays(1)) {
        qDebug() << "currently loading " << i;
        QList<QPointF> data = getRawDataForDate(i);
        qDebug() << filedata.count();
        if (filedata.count() == 0) {
            filedata = data;
            qDebug() << filedata.count();
        } else {
            filedata += data;
        }
    }
    return QVariant::fromValue(filedata);
}

void StepsDataLoader::triggerDaemonRecording() {
    m_iface->call("triggerRecording");
}