extract torrent statistics from torrent speed monitor to separate file

src/qtlibtorrent/torrentstatistics.cpp

@@ -0,0 +1,95 @@
+#include "torrentstatistics.h"
+
+#include <QDateTime>
+
+#include <libtorrent/session.hpp>
+
+#include "qbtsession.h"
+#include "qinisettings.h"
+
+TorrentStatistics::TorrentStatistics(QBtSession* session, QObject* parent)
+  : QObject(parent)
+  , m_session(session)
+  , m_sessionUL(0)
+  , m_sessionDL(0)
+  , m_lastWrite(0)
+  , m_dirty(false) {
+  loadStats();
+  connect(&m_timer, SIGNAL(timeout()), this, SLOT(gatherStats()));
+  m_timer.start(60 * 1000);
+}
+
+TorrentStatistics::~TorrentStatistics() {
+  if (m_dirty)
+    m_lastWrite = 0;
+  saveStats();
+}
+
+quint64 TorrentStatistics::getAlltimeDL() const {
+  return m_alltimeDL + m_sessionDL;
+}
+
+quint64 TorrentStatistics::getAlltimeUL() const {
+  return m_alltimeUL + m_sessionUL;
+}
+
+void TorrentStatistics::gatherStats() {
+  libtorrent::session_status ss = m_session->getSessionStatus();
+  if (ss.total_download > m_sessionDL) {
+    m_sessionDL = ss.total_download;
+    m_dirty = true;
+  }
+  if (ss.total_upload > m_sessionUL) {
+    m_sessionUL = ss.total_upload;
+    m_dirty = true;
+  }
+
+  saveStats();
+}
+
+void TorrentStatistics::saveStats() const {
+  if (!(m_dirty && (QDateTime::currentMSecsSinceEpoch() - m_lastWrite >= 15*60*1000) ))
+    return;
+  QIniSettings s("qBittorrent", "qBittorrent-data");
+  QVariantHash v;
+  v.insert("AlltimeDL", m_alltimeDL + m_sessionDL);
+  v.insert("AlltimeUL", m_alltimeUL + m_sessionUL);
+  s.setValue("Stats/AllStats", v);
+  m_dirty = false;
+  m_lastWrite = QDateTime::currentMSecsSinceEpoch();
+}
+
+void TorrentStatistics::loadStats() {
+  // Temp code. Versions v3.1.4 and v3.1.5 saved the data in the qbittorrent.ini file.
+  // This code reads the data from there, writes it to the new file, and removes the keys
+  // from the old file. This code should be removed after some time has passed.
+  // e.g. When we reach v3.3.0
+  QIniSettings s_old;
+  QIniSettings s("qBittorrent", "qBittorrent-data");
+  QVariantHash v;
+
+  // Let's test if the qbittorrent.ini holds the key
+  if (s_old.contains("Stats/AllStats")) {
+    v = s_old.value("Stats/AllStats").toHash();
+    m_dirty = true;
+
+    // If the user has used qbt > 3.1.5 and then reinstalled/used
+    // qbt < 3.1.6, there will be stats in qbittorrent-data.ini too
+    // so we need to merge those 2.
+    if (s.contains("Stats/AllStats")) {
+      QVariantHash tmp = s.value("Stats/AllStats").toHash();
+      v["AlltimeDL"] = v["AlltimeDL"].toULongLong() + tmp["AlltimeDL"].toULongLong();
+      v["AlltimeUL"] = v["AlltimeUL"].toULongLong() + tmp["AlltimeUL"].toULongLong();
+    }
+  }
+  else
+    v = s.value("Stats/AllStats").toHash();
+
+  m_alltimeDL = v["AlltimeDL"].toULongLong();
+  m_alltimeUL = v["AlltimeUL"].toULongLong();
+
+  if (m_dirty) {
+    saveStats();
+    s_old.remove("Stats/AllStats");
+  }
+}