database functions

src/timestamp.cpp

@@ -0,0 +1,8 @@
+#include "timestamp.hpp"
+
+Timestamp ParseTimestamp(const std::string& ts) {
+    std::tm tm = {};
+    std::istringstream ss(ts);
+    ss >> std::get_time(&tm, "%Y-%m-%d %H:%M:%S");
+    return std::chrono::system_clock::from_time_t(std::mktime(&tm));
+}