1 files changed, 70 insertions, 0 deletions
diff --git a/src/bookmouse_time.cpp b/src/bookmouse_time.cpp
new file mode 100644
index 0000000..c779168
--- /dev/null
+++ b/src/bookmouse_time.cpp
@@ -0,0 +1,70 @@
+#include "bookmouse_time.hpp"
+
+#include <vector>
+
+namespace bookmouse {
+
+using fud::FudStatus;
+using fud::Result;
+
+TimeFormat::TimeFormat(const char* format) : m_format{format}, m_sizeNeeded{m_format.length()}
+{
+    if (m_format.utf8Valid()) {
+        m_utf8Valid = true;
+    }
+}
+
+TimeFormat::TimeFormat(const fud::String& format) : m_format{format}, m_sizeNeeded{m_format.length()}
+{
+    if (m_format.utf8Valid()) {
+        m_utf8Valid = true;
+    }
+}
+
+fud::Result<fud::String, fud::FudStatus> TimeFormat::format(const TimeInfo& timeInfo)
+{
+    using RetType = fud::Result<fud::String, fud::FudStatus>;
+
+    if (!m_utf8Valid || m_format.length() < 1) {
+        return RetType::error(FudStatus::ObjectInvalid);
+    }
+
+    std::vector<char> output;
+    size_t resultSize = 0;
+    constexpr size_t maxSize = 1024;
+    while (resultSize == 0 && m_sizeNeeded <= maxSize) {
+        output.resize(m_sizeNeeded);
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wformat-nonliteral"
+#elif defined __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+#endif
+
+        resultSize = std::strftime(output.data(), output.size(), m_format.c_str(), &timeInfo);
+
+#if defined __clang__
+#pragma clang diagnostic pop
+#elif defined __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+
+        if (resultSize == 0) {
+            if (m_sizeNeeded <= 512) {
+                m_sizeNeeded *= 2;
+            } else {
+                m_sizeNeeded = maxSize;
+            }
+        }
+    }
+    if (resultSize == 0) {
+        return RetType::error(FudStatus::Failure);
+    }
+
+    return RetType::okay(fud::String(output.data()));
+}
+
+} // namespace bookmouse