REFACTOR

src/models/period.c

@@ -0,0 +1,46 @@
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <models/period.h>
+
+int
+period_helper_parse_hhmm(const char *hhmm_str, uint16_t *hhmm)
+{
+    if(strlen(hhmm_str) != 5)
+    {
+        return 1;
+    }
+    if(hhmm_str[2] != ':')
+    {
+        return 1;
+    }
+    for(int i = 0; i < 5; ++i)
+    {
+        if(i != 2)
+        {
+            if(hhmm_str[i] < '0' || hhmm_str[i] > '9')
+            {
+                return 1;
+            }
+        }
+    }
+
+    uint16_t tmp_h, tmp_m;
+    tmp_h = (uint16_t)strtol(&hhmm_str[0], NULL, 10);
+    tmp_m = (uint16_t)strtol(&hhmm_str[3], NULL, 10);
+
+    if(tmp_h > 24 || tmp_m >= 60)
+    {
+        return 1;
+    }
+    if(tmp_h == 24 && tmp_m > 0)
+    {
+        return 1;
+    }
+
+    *hhmm = (tmp_h * 60) + tmp_m;
+
+    return 0;
+}