wowlet/src/utils/txfiathistory.cpp
2020-12-25 15:38:44 +01:00

116 lines
3.6 KiB
C++

#include <QtCore>
#include <QObject>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <iomanip>
#include "txfiathistory.h"
#include "utils/utils.h"
TxFiatHistory::TxFiatHistory(int genesis_timestamp, const QString &configDirectory, QObject *parent) :
QObject(parent),
m_genesis_timestamp(genesis_timestamp),
m_configDirectory(configDirectory) {
m_databasePath = QString("%1fiatHistory.db").arg(configDirectory);
this->loadDatabase();
}
double TxFiatHistory::get(int timestamp) {
QDateTime ts;
ts.setTime_t(timestamp);
auto key = ts.toString("yyyyMMdd");
return this->get(key); // USD
}
double TxFiatHistory::get(const QString &date) {
if(m_database.contains(date))
return m_database[date]; // USD
return 0.0;
}
void TxFiatHistory::loadDatabase() {
if(!Utils::fileExists(m_databasePath))
return;
m_database.clear();
QString contents = Utils::barrayToString(Utils::fileOpen(m_databasePath));
for(auto &line: contents.split("\n")){
line = line.trimmed();
if(line.isEmpty()) continue;
auto spl = line.split(":");
m_database[spl.at(0)] = spl.at(1).toDouble();
}
}
void TxFiatHistory::writeDatabase() {
QString data;
for(const auto &line: m_database.toStdMap())
data += QString("%1:%2\n").arg(line.first).arg(QString::number(line.second));
Utils::fileWrite(m_databasePath, data);
}
void TxFiatHistory::onUpdateDatabase() {
// update local txFiatHistory database
if(m_initialized) return;
QDateTime genesis;
genesis.setTime_t(m_genesis_timestamp);
auto genesis_date = genesis.date();
auto now = QDate::currentDate();
auto nowKey = now.toString("yyyyMMdd");
int year = genesis.toString("yyyy").toInt();
auto yearCurrent = now.year();
// if current year is genesis year we'll refresh regardless.
if(yearCurrent == genesis_date.year()) {
emit requestYear(year);
m_initialized = true;
return;
}
// keep local fiatTxHistory database up to date, loop for missing dates
for(year; year != yearCurrent + 1; year += 1){
for(int month = 1; month != 13; month++) {
if(year == yearCurrent && month == now.month() && now.day() == 1) break;
QDateTime _now;
_now.setDate(QDate(year, month, 1));
if(_now.toSecsSinceEpoch() < m_genesis_timestamp) continue;
if(_now.toSecsSinceEpoch() > std::time(nullptr) - 86400) continue;
QString key = "";
// genesis year we'll only fetch once
if(year == genesis_date.year()){
key = QString("%1%2%3").arg(year).arg(12).arg("31");
if(!m_database.contains(key))
emit requestYear(year);
break;
}
auto _month = QString::number(month);
if(_month.length() == 1)
_month = QString("0%1").arg(_month); // how2fill
key = QString("%1%2%3").arg(year).arg(_month).arg("01");
if(!m_database.contains(key)){
if(year != yearCurrent) {
emit requestYear(year);
break;
} else
emit requestYearMonth(year, month);
} else if (year == yearCurrent && month == now.month() && !m_database.contains(nowKey))
emit requestYearMonth(year, month);
}
}
m_initialized = true;
}
void TxFiatHistory::onWSData(const QJsonObject &data) {
foreach(const QString &key, data.keys()) {
QJsonValue value = data.value(key);
m_database[key] = value.toDouble();
}
this->writeDatabase();
}