oxmc
128 lines
3.2 KiB
C++
128 lines
3.2 KiB
C++
// *****************************************************************************
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// * This file is part of the FreeFileSync project. It is distributed under *
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// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
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// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
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// *****************************************************************************
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#ifndef ERROR_LOG_H_8917590832147915
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#define ERROR_LOG_H_8917590832147915
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#include <cassert>
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#include <vector>
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#include "time.h"
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#include "i18n.h"
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#include "zstring.h"
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namespace zen
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{
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enum MessageType
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{
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MSG_TYPE_INFO = 0x1,
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MSG_TYPE_WARNING = 0x2,
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MSG_TYPE_ERROR = 0x4,
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};
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struct LogEntry
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{
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time_t time = 0;
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MessageType type = MSG_TYPE_ERROR;
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Zstringc message; //conserve memory (=> avoid std::string SSO overhead!)
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};
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std::string formatMessage(const LogEntry& entry);
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using ErrorLog = std::vector<LogEntry>;
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void logMsg(ErrorLog& log, const std::wstring& msg, MessageType type, time_t time = std::time(nullptr));
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struct ErrorLogStats
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{
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int infos = 0;
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int warnings = 0;
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int errors = 0;
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};
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ErrorLogStats getStats(const ErrorLog& log);
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//######################## implementation ##########################
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inline
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void logMsg(ErrorLog& log, const std::wstring& msg, MessageType type, time_t time)
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{
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log.push_back({time, type, utfTo<Zstringc>(msg)});
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}
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inline
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ErrorLogStats getStats(const ErrorLog& log)
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{
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ErrorLogStats count;
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for (const LogEntry& entry : log)
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switch (entry.type)
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{
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case MSG_TYPE_INFO:
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++count.infos;
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break;
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case MSG_TYPE_WARNING:
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++count.warnings;
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break;
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case MSG_TYPE_ERROR:
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++count.errors;
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break;
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}
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assert(std::ssize(log) == count.infos + count.warnings + count.errors);
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return count;
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}
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inline
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std::wstring getMessageTypeLabel(MessageType type)
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{
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switch (type)
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{
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case MSG_TYPE_INFO:
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return _("Info");
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case MSG_TYPE_WARNING:
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return _("Warning");
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case MSG_TYPE_ERROR:
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return _("Error");
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}
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assert(false);
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return std::wstring();
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}
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inline
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std::string formatMessage(const LogEntry& entry)
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{
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std::string msgFmt = '[' + utfTo<std::string>(formatTime(formatTimeTag, getLocalTime(entry.time))) + "] " + utfTo<std::string>(getMessageTypeLabel(entry.type)) + ": ";
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const size_t prefixLen = unicodeLength(msgFmt); //consider Unicode!
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const Zstringc msg = trimCpy(entry.message);
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static_assert(std::is_same_v<decltype(msg), const Zstringc>, "no worries about copying as long as we're using a ref-counted string!");
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assert(msg == entry.message); //trimming shouldn't be needed usually!?
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for (auto it = msg.begin(); it != msg.end(); )
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if (*it == '\n')
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{
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msgFmt += *it++;
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msgFmt.append(prefixLen, ' ');
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//skip duplicate newlines
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for (; it != msg.end() && *it == '\n'; ++it)
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;
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}
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else
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msgFmt += *it++;
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msgFmt += '\n';
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return msgFmt;
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}
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}
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#endif //ERROR_LOG_H_8917590832147915
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