1 files changed, 71 insertions, 0 deletions
diff --git a/src/un_log.c b/src/un_log.c
new file mode 100644
index 0000000..ef5bb02
--- /dev/null
+++ b/src/un_log.c
@@ -0,0 +1,71 @@
+#include <stdio.h>
+
+Log_Level un_current_log_level = UN_LOG_INFO;
+
+u8 log_buffer[UN_KB(4)];
+
+void un_log_write_internal(Log_Level level, String format, va_list vaptr) {
+    if (level < un_current_log_level) return;
+
+    switch (level) {
+        case UN_LOG_TRACE:
+            fprintf(stderr, "[TRACE] ");
+            break;
+        case UN_LOG_DEBUG:
+            fprintf(stderr, "[DEBUG] ");
+            break;
+        case UN_LOG_INFO:
+            fprintf(stderr, "[INFO] ");
+            break;
+        case UN_LOG_WARNING:
+            fprintf(stderr, "[WARNING] ");
+            break;
+        case UN_LOG_ERROR:
+            fprintf(stderr, "[ERROR] ");
+            break;
+        case UN_LOG_FATAL:
+            fprintf(stderr, "[FATAL] ");
+            break;
+        default:
+            break;
+    }
+
+    sprintf(CSTR log_buffer, "%.*s", (int)format.size, format.data);
+    vfprintf(stderr, CSTR log_buffer, vaptr);
+
+    switch (level) {
+        case UN_LOG_RAW:
+            break;
+        case UN_LOG_FATAL:
+            fprintf(stderr, "\n");
+            assert(false);
+            break;
+        default:
+            fprintf(stderr, "\n");
+            break;
+    }
+}
+
+extern void un_log_write_cstring(Log_Level level, u8 *format, ...) {
+    va_list vaptr;
+    String temp;
+    
+    if (level < un_current_log_level) return;
+
+    temp.size = un_string_get_length(format);
+    temp.data = format;
+    
+    va_start(vaptr, format);
+    un_log_write_internal(level, temp, vaptr);
+    va_end(vaptr);
+}
+
+void un_log_write(Log_Level level, String format, ...) {
+    va_list vaptr;
+    
+    if (level < un_current_log_level) return;
+
+    va_start(vaptr, format);
+    un_log_write_internal(level, format, vaptr);
+    va_end(vaptr);
+}