refactor utils

include/utils.hpp

@@ -2,14 +2,18 @@
 #define UTILS_HPP
 
 #include <cstdint>
+#include <filesystem>
 #include <format>
 #include <string>
 
-#define FILL_CHAR ' '
+namespace utils {
 
-enum JUST { RIGHT, LEFT };
+const char FILL_CHAR = ' ';
 
-std::string pad(std::string s, uint8_t len, JUST j = JUST::RIGHT);
+enum just { right,
+            left };
+
+std::string pad(std::string s, uint8_t len, just j = just::right);
 std::string center(std::string str, uint8_t len);
 std::string pBytes(double bytes, bool isKbytes = false);
 ssize_t readFile(std::string path, char* buffer, size_t maxlen);
@@ -22,9 +26,14 @@ inline long long fastReadNum(const std::string& path, char (&buf)[N]) {
     return std::strtoll(buf, nullptr, 10);
 }
 
-// pretty prints num with given decs, 0 by default. its basically a macro so we inline it
 inline std::string pNum(auto num, uint8_t decs = 0) {
     return std::format("{:.{}f}", num, decs);
 }
 
+inline bool fileExists(std::string_view path) {
+    return std::filesystem::exists(path);
+}
+
+}  // namespace utils
+
 #endif