1 files changed, 133 insertions, 0 deletions
diff --git a/zen/error_log.h b/zen/error_log.h
new file mode 100644
index 00000000..f3f67233
--- /dev/null
+++ b/zen/error_log.h
@@ -0,0 +1,133 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) ZenJu (zhnmju123 AT gmx DOT de) - All Rights Reserved    *
+// **************************************************************************
+
+#ifndef ERRORLOGGING_H_INCLUDED
+#define ERRORLOGGING_H_INCLUDED
+
+#include <algorithm>
+#include <vector>
+#include <string>
+#include <zen/time.h>
+#include <zen/i18n.h>
+
+namespace zen
+{
+enum MessageType
+{
+    TYPE_INFO        = 1,
+    TYPE_WARNING     = 2,
+    TYPE_ERROR       = 4,
+    TYPE_FATAL_ERROR = 8,
+};
+
+struct LogEntry
+{
+    time_t       time;
+    MessageType  type;
+    std::wstring message;
+};
+
+std::wstring formatMessage(const LogEntry& msg);
+
+
+class ErrorLog
+{
+public:
+    void logMsg(const std::wstring& message, MessageType type);
+
+    int getItemCount(int typeFilter = TYPE_INFO | TYPE_WARNING | TYPE_ERROR | TYPE_FATAL_ERROR) const;
+
+    const std::vector<LogEntry>& getEntries() const { return logEntries; }
+
+private:
+    std::vector<LogEntry> logEntries; //list of non-resolved errors and warnings
+};
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//######################## implementation ##########################
+
+inline
+void ErrorLog::logMsg(const std::wstring& message, zen::MessageType type)
+{
+    const LogEntry newEntry = { std::time(nullptr), type, message };
+    logEntries.push_back(newEntry);
+}
+
+
+inline
+int ErrorLog::getItemCount(int typeFilter) const
+{
+    return static_cast<int>(std::count_if(logEntries.begin(), logEntries.end(), [&](const LogEntry& e) { return e.type & typeFilter; }));
+}
+
+
+namespace
+{
+std::wstring formatMessageImpl(const LogEntry& entry) //internal linkage
+{
+    auto getTypeName = [&]() -> std::wstring
+    {
+        switch (entry.type)
+        {
+            case TYPE_INFO:
+                return _("Info");
+            case TYPE_WARNING:
+                return _("Warning");
+            case TYPE_ERROR:
+                return _("Error");
+            case TYPE_FATAL_ERROR:
+                return _("Fatal Error");
+        }
+        return std::wstring();
+    };
+
+    std::wstring formattedText = L"[" + formatTime<std::wstring>(FORMAT_TIME, localTime(entry.time)) + L"] " + getTypeName() + L": ";
+    const size_t prefixLen = formattedText.size();
+
+    for (auto iter = entry.message.begin(); iter != entry.message.end(); )
+        if (*iter == L'\n')
+        {
+            formattedText += L'\n';
+
+            std::wstring blanks;
+            blanks.resize(prefixLen, L' ');
+            formattedText += blanks;
+
+            do //skip duplicate newlines
+            {
+                ++iter;
+            }
+            while (iter != entry.message.end() && *iter == L'\n');
+        }
+        else
+            formattedText += *iter++;
+
+    return formattedText;
+}
+}
+
+inline std::wstring formatMessage(const LogEntry& entry) { return formatMessageImpl(entry); }
+
+}
+
+#endif // ERRORLOGGING_H_INCLUDED