Implement staggered timeouts bases on age.

* < 1 mo = 2 hours
* < 3 mo = 4 hours
* < 6 mo = 6 hours
* < 1 yr = 12 hours
* > 1 yr = 24 hours

9 files changed, 85 insertions, 6 deletions

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index cdf363cc..ce476143 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -5550,7 +5550,7 @@ void MainWindow::nxmUpdatesAvailable(QString gameName, int modID, QVariant userD
       requiresInfo = true;
     }
 
-    if (mod->getLastNexusQuery().addDays(1) <= QDateTime::currentDateTime())
+    if (mod->getLastNexusQuery().addDays(1) <= QDateTime::currentDateTimeUtc())
       requiresInfo = true;
   }
 
@@ -5577,7 +5577,7 @@ void MainWindow::nxmModInfoAvailable(QString gameName, int modID, QVariant userD
   std::vector<ModInfo::Ptr> modsList = ModInfo::getByModID(gameNameReal, modID);
   for (auto mod : modsList) {
     QDateTime now = QDateTime::currentDateTimeUtc();
-    QDateTime updateTarget = mod->getLastNexusUpdate().addSecs(3600);
+    QDateTime updateTarget = mod->getExpires();
     if (now >= updateTarget) {
       mod->setNewestVersion(result["version"].toString());
       mod->setLastNexusUpdate(QDateTime::currentDateTimeUtc());
@@ -5594,6 +5594,7 @@ void MainWindow::nxmModInfoAvailable(QString gameName, int modID, QVariant userD
         mod->setIsEndorsed(false);
     }
     mod->setLastNexusQuery(QDateTime::currentDateTimeUtc());
+    mod->setNexusLastModified(QDateTime::fromSecsSinceEpoch(result["updated_timestamp"].toInt()));
     mod->saveMeta();
   }
 }
diff --git a/src/modinfo.h b/src/modinfo.h
index 9343a98c..2048432e 100644
--- a/src/modinfo.h
+++ b/src/modinfo.h
@@ -24,9 +24,9 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
 #include "versioninfo.h"
 
 class PluginContainer;
-
-class QDateTime;
 class QDir;
+
+#include <QDateTime>
 #include <QMutex>
 #include <QSharedPointer>
 #include <QString>
@@ -460,6 +460,11 @@ public:
   virtual bool canBeUpdated() const { return false; }
 
   /**
+   * @return the mod update check expiration date
+   */
+  virtual QDateTime getExpires() const { return QDateTime(); }
+
+  /**
    * @return true if the mod can be enabled/disabled
    */
   virtual bool canBeEnabled() const { return false; }
@@ -556,6 +561,16 @@ public:
   virtual void setLastNexusQuery(QDateTime time) = 0;
 
   /**
+   * @return last time the mod was updated on Nexus
+   */
+  virtual QDateTime getNexusLastModified() const = 0;
+
+  /**
+   * @brief set the last time the mod was updated on Nexus
+   */
+  virtual void setNexusLastModified(QDateTime time) = 0;
+
+  /**
    * @return a list of files that, if they exist in the data directory are treated as files in THIS mod
    */
   virtual QStringList stealFiles() const { return QStringList(); }
diff --git a/src/modinfobackup.h b/src/modinfobackup.h
index e88335e2..3c948931 100644
--- a/src/modinfobackup.h
+++ b/src/modinfobackup.h
@@ -21,6 +21,7 @@ public:
   virtual int getFixedPriority() const { return -1; }
   virtual void ignoreUpdate(bool) {}
   virtual bool canBeUpdated() const { return false; }
+  virtual QDateTime getExpires() const { return QDateTime(); }
   virtual bool canBeEnabled() const { return false; }
   virtual std::vector<QString> getIniTweaks() const { return std::vector<QString>(); }
   virtual std::vector<EFlag> getFlags() const;
@@ -31,6 +32,8 @@ public:
   virtual void setLastNexusQuery(QDateTime) {}
   virtual QDateTime getLastNexusUpdate() const { return QDateTime(); }
   virtual void setLastNexusUpdate(QDateTime) {}
+  virtual QDateTime getNexusLastModified() const { return QDateTime(); }
+  virtual void setNexusLastModified(QDateTime) {}
   virtual void getNexusFiles(QList<MOBase::ModRepositoryFileInfo*>::const_iterator&,
                              QList<MOBase::ModRepositoryFileInfo*>::const_iterator&) {}
   virtual QString getNexusDescription() const { return QString(); }
diff --git a/src/modinfoforeign.h b/src/modinfoforeign.h
index 6fcf56a1..7f5bb711 100644
--- a/src/modinfoforeign.h
+++ b/src/modinfoforeign.h
@@ -43,6 +43,7 @@ public:
   virtual QString getInstallationFile() const { return ""; }
   virtual QString getGameName() const { return ""; }
   virtual int getNexusID() const { return -1; }
+  virtual QDateTime getExpires() const { return QDateTime(); }
   virtual std::vector<QString> getIniTweaks() const { return std::vector<QString>(); }
   virtual std::vector<ModInfo::EFlag> getFlags() const;
   virtual int getHighlight() const;
@@ -53,6 +54,8 @@ public:
   virtual void setLastNexusUpdate(QDateTime) {}
   virtual QDateTime getLastNexusQuery() const { return QDateTime(); }
   virtual void setLastNexusQuery(QDateTime) {}
+  virtual QDateTime getNexusLastModified() const { return QDateTime(); }
+  virtual void setNexusLastModified(QDateTime) {}
   virtual QString getNexusDescription() const { return QString(); }
   virtual int getFixedPriority() const { return INT_MIN; }
   virtual QStringList archives(bool checkOnDisk = false)  { return m_Archives; }
diff --git a/src/modinfooverwrite.h b/src/modinfooverwrite.h
index 9f77f648..71c20bee 100644
--- a/src/modinfooverwrite.h
+++ b/src/modinfooverwrite.h
@@ -46,6 +46,7 @@ public:
   virtual int getFixedPriority() const { return INT_MAX; }
   virtual QString getGameName() const { return ""; }
   virtual int getNexusID() const { return -1; }
+  virtual QDateTime getExpires() const { return QDateTime(); }
   virtual std::vector<QString> getIniTweaks() const { return std::vector<QString>(); }
   virtual std::vector<ModInfo::EFlag> getFlags() const;
   virtual int getHighlight() const;
@@ -56,6 +57,8 @@ public:
   virtual void setLastNexusUpdate(QDateTime) {}
   virtual QDateTime getLastNexusQuery() const { return QDateTime(); }
   virtual void setLastNexusQuery(QDateTime) {}
+  virtual QDateTime getNexusLastModified() const { return QDateTime(); }
+  virtual void setNexusLastModified(QDateTime) {}
   virtual QString getNexusDescription() const { return QString(); }
   virtual QStringList archives(bool checkOnDisk = false);
   virtual void addInstalledFile(int, int) {}
diff --git a/src/modinforegular.cpp b/src/modinforegular.cpp
index 8651f15e..876ccf3d 100644
--- a/src/modinforegular.cpp
+++ b/src/modinforegular.cpp
@@ -100,6 +100,7 @@ void ModInfoRegular::readMeta()
   m_URL              = metaFile.value("url", "").toString();
   m_LastNexusQuery   = QDateTime::fromString(metaFile.value("lastNexusQuery", "").toString(), Qt::ISODate);
   m_LastNexusUpdate  = QDateTime::fromString(metaFile.value("lastNexusUpdate", "").toString(), Qt::ISODate);
+  m_NexusLastModified = QDateTime::fromString(metaFile.value("nexusLastModified", QDateTime::currentDateTimeUtc()).toString(), Qt::ISODate);
   m_Color            = metaFile.value("color",QColor()).value<QColor>();
   if (metaFile.contains("endorsed")) {
     if (metaFile.value("endorsed").canConvert<int>()) {
@@ -165,6 +166,7 @@ void ModInfoRegular::saveMeta()
       metaFile.setValue("nexusFileStatus", m_NexusFileStatus);
       metaFile.setValue("lastNexusQuery", m_LastNexusQuery.toString(Qt::ISODate));
       metaFile.setValue("lastNexusUpdate", m_LastNexusUpdate.toString(Qt::ISODate));
+      metaFile.setValue("nexusLastModified", m_NexusLastModified.toString(Qt::ISODate));
       metaFile.setValue("converted", m_Converted);
       metaFile.setValue("validated", m_Validated);
       metaFile.setValue("color", m_Color);
@@ -233,6 +235,7 @@ void ModInfoRegular::nxmDescriptionAvailable(QString, int, QVariant, QVariant re
       setEndorsedState(ENDORSED_FALSE);
   }
   m_LastNexusQuery = QDateTime::currentDateTimeUtc();
+  m_NexusLastModified = QDateTime::fromSecsSinceEpoch(result["updated_timestamp"].toInt());
   m_MetaInfoChanged = true;
   saveMeta();
   disconnect(sender(), SIGNAL(nxmDescriptionAvailable(QString, int, QVariant, QVariant)));
@@ -496,12 +499,31 @@ void ModInfoRegular::ignoreUpdate(bool ignore)
 bool ModInfoRegular::canBeUpdated() const
 {
   QDateTime now = QDateTime::currentDateTimeUtc();
-  QDateTime target = m_LastNexusUpdate.addSecs(3600);
+  QDateTime target = getExpires();
   if (now >= target)
     return m_NexusID > 0;
   return false;
 }
 
+QDateTime ModInfoRegular::getExpires() const
+{
+  qint64 diff = m_NexusLastModified.msecsTo(QDateTime::currentDateTimeUtc());
+  qint64 year = 31536000000;
+  qint64 sixMonths = 15768000000;
+  qint64 threeMonths = 7884000000;
+  qint64 oneMonth = 1314000000;
+
+  if (diff < oneMonth)
+    return m_LastNexusUpdate.addSecs(7200);
+  else if (diff < threeMonths)
+    return m_LastNexusUpdate.addSecs(14400);
+  else if (diff < sixMonths)
+    return m_LastNexusUpdate.addSecs(21600);
+  else if (diff < year)
+    return m_LastNexusUpdate.addSecs(43200);
+  else
+    return m_LastNexusUpdate.addSecs(86400);
+}
 
 std::vector<ModInfo::EFlag> ModInfoRegular::getFlags() const
 {
@@ -686,6 +708,19 @@ void ModInfoRegular::setLastNexusQuery(QDateTime time)
   emit modDetailsUpdated(true);
 }
 
+QDateTime ModInfoRegular::getNexusLastModified() const
+{
+  return m_NexusLastModified;
+}
+
+void ModInfoRegular::setNexusLastModified(QDateTime time)
+{
+  m_NexusLastModified = time;
+  m_MetaInfoChanged = true;
+  saveMeta();
+  emit modDetailsUpdated(true);
+}
+
 void ModInfoRegular::setURL(QString const &url)
 {
   m_URL = url;
diff --git a/src/modinforegular.h b/src/modinforegular.h
index 6ad51e5f..7dc2fd6e 100644
--- a/src/modinforegular.h
+++ b/src/modinforegular.h
@@ -259,6 +259,11 @@ public:
   virtual bool canBeUpdated() const;
 
   /**
+   * @return the update expiration date based on the last updated date from Nexus
+   */
+  virtual QDateTime getExpires() const;
+
+  /**
    * @return true if the mod can be enabled/disabled
    */
   virtual bool canBeEnabled() const { return true; }
@@ -348,6 +353,16 @@ public:
    */
   virtual void setLastNexusQuery(QDateTime time);
 
+  /**
+   * @return last time the mod was updated on Nexus
+   */
+  virtual QDateTime getNexusLastModified() const;
+
+  /**
+   * @brief set the last time the mod was updated on Nexus
+   */
+  virtual void setNexusLastModified(QDateTime time);
+
   virtual QStringList archives(bool checkOnDisk = false);
 
   virtual void setColor(QColor color);
@@ -405,6 +420,7 @@ private:
   QDateTime m_CreationTime;
   QDateTime m_LastNexusQuery;
   QDateTime m_LastNexusUpdate;
+  QDateTime m_NexusLastModified;
 
   QColor m_Color;
 
diff --git a/src/modinfoseparator.h b/src/modinfoseparator.h
index 819ee686..865a5179 100644
--- a/src/modinfoseparator.h
+++ b/src/modinfoseparator.h
@@ -31,6 +31,7 @@ public:
   virtual void ignoreUpdate(bool /*ignore*/) {}
 
   virtual bool canBeUpdated() const { return false; }
+  virtual QDateTime getExpires() const { return QDateTime(); }
   virtual bool canBeEnabled() const { return false; }
   virtual std::vector<QString> getIniTweaks() const { return std::vector<QString>(); }
 
@@ -49,6 +50,8 @@ public:
   virtual void setLastNexusUpdate(QDateTime) {}
   virtual QDateTime getLastNexusQuery() const { return QDateTime(); }
   virtual void setLastNexusQuery(QDateTime) {}
+  virtual QDateTime getNexusLastModified() const { return QDateTime(); }
+  virtual void setNexusLastModified(QDateTime) {}
   virtual QDateTime creationTime() const { return QDateTime(); }
 
   virtual void getNexusFiles
diff --git a/src/modlist.cpp b/src/modlist.cpp
index 3f8ea4e1..c252d73b 100644
--- a/src/modlist.cpp
+++ b/src/modlist.cpp
@@ -467,7 +467,7 @@ QVariant ModList::data(const QModelIndex &modelIndex, int role) const
         if (!modInfo->canBeUpdated()) {
           text += "<br>" + tr("This mod was last checked on %1. It will be available to check after %2.")
             .arg(modInfo->getLastNexusUpdate().toLocalTime().toString(Qt::DefaultLocaleShortDate))
-            .arg(modInfo->getLastNexusUpdate().toLocalTime().addSecs(3600).time().toString(Qt::DefaultLocaleShortDate));
+            .arg(modInfo->getExpires().toLocalTime().time().toString(Qt::DefaultLocaleShortDate));
         } else {
           text += "<br>" + tr("This mod is eligible for an update check.");
           text += "<br>" + tr("It was last checked on %1").arg(modInfo->getLastNexusUpdate().toLocalTime().toString(Qt::DefaultLocaleShortDate));