Release v0.6.18: verify conversion results and log problems only

src/platform.cpp

@@ -1,6 +1,8 @@
 #include "platform.h"
+#include "../vendor/json.hpp"
 #include <algorithm>
 #include <fstream>
+#include <iomanip>
 #include <imm.h>
 #include <map>
 #include <mutex>
@@ -624,6 +626,22 @@ void diagnosticEvent(const std::wstring &message, bool problem)
     if (!incident.empty())
         log(incident);
 }
+void diagnosticOperation(const std::string &json)
+{
+    std::lock_guard lock(logGate);
+    if (!loggingEnabled) return;
+    auto record = nlohmann::json::parse(json);
+    if (!record.value("problem", true))
+    {
+        // Keep successful operations only in the bounded, short-lived context.
+        // They are persisted with a subsequent failure, never as standalone rows.
+        diagnosticBuffer.record(L"Completed operation " + wide(record.dump(-1, ' ', true,
+            nlohmann::json::error_handler_t::replace)), false, GetTickCount64());
+        return;
+    }
+    record["context"] = utf8(diagnosticBuffer.record(L"Operation complete", true, GetTickCount64()));
+    log(L"Operation " + wide(record.dump(-1, ' ', true, nlohmann::json::error_handler_t::replace)));
+}
 void log(const std::wstring &message)
 {
     std::lock_guard lock(logGate);
@@ -645,8 +663,9 @@ void log(const std::wstring &message)
         std::ofstream f(path, std::ios::app);
         SYSTEMTIME t;
         GetLocalTime(&t);
-        f << t.wYear << '-' << t.wMonth << '-' << t.wDay << ' ' << t.wHour << ':' << t.wMinute << ':'
-          << t.wSecond << ' ' << utf8(message) << '\n';
+        f << std::setfill('0') << std::setw(4) << t.wYear << '-' << std::setw(2) << t.wMonth << '-'
+          << std::setw(2) << t.wDay << ' ' << std::setw(2) << t.wHour << ':' << std::setw(2) << t.wMinute << ':'
+          << std::setw(2) << t.wSecond << ' ' << utf8(message) << '\n';
     }
     catch (...)
     {