Added day switching.

.gitignore

@@ -2,3 +2,4 @@ main
 main.dSYM
 third_party
 sourcecodepro.ttf
+.DS_Store

main.c

@@ -177,10 +177,8 @@ void switch_activity(activity *activities, U32 *current_activity, activity_type
 
 int main(int argc, char *argv[])
 {
-    (void)argc;
-    (void)argv;
-
     activity activities[100];
+    memset(activities, 0, sizeof(activities));
     U32 current_activity = 0;
 
     Activity_Stat activities_stats[activity_type_COUNT];
@@ -306,7 +304,7 @@ int main(int argc, char *argv[])
 
     // Initialize to default activity at the start.
     // NOTE: We can potentially make the default a non-state, so the users
-    // choos themselves.
+    //       choose themselves.
     activities[current_activity].type = other;
     activities[current_activity].color = RED;
     activities[current_activity].began = now();
@@ -320,6 +318,47 @@ int main(int argc, char *argv[])
     while(!WindowShouldClose()) {
         U64 now_s = now();
 
+        // NOTE: WARNING: TODO: Temporary solution; to be cleaned up.
+        if(now_s >= upper_bound_s) {
+            U64 secs = now();
+
+            t = localtime((time_t *)(&secs));
+            t->tm_hour = 0;
+            t->tm_min  = 0;
+            t->tm_sec  = 0;
+
+            time_t ts = mktime(t);
+            if(ts == (time_t)-1) {
+                fprintf(stderr, "mktime failed.\n");
+                return 1;
+            }
+
+            lower_bound_s = (U64)ts;
+            upper_bound_s = lower_bound_s + 86400;
+
+            fclose(f);
+
+            strftime(date_buffer, sizeof(date_buffer), "%Y_%m_%d", t);
+            snprintf(file_buffer, sizeof(file_buffer), "%s/%s", dir_buffer,
+                     date_buffer);
+
+            f = fopen(file_buffer, "w+");
+            if(!f) {
+                fprintf(stderr, "Failed to create file: %s\n", file_buffer);
+                return 1;
+            }
+
+            activity_type type = activities[current_activity].type;
+            memset(activities, 0, sizeof(activities));
+            memset(activities_stats, 0, sizeof(activities_stats));
+            current_activity = 0;
+
+            activities[current_activity].type = type;
+            activities[current_activity].color =
+                activity_type_color_representation[type];
+            activities[current_activity].began = now();
+        }
+
         window_w = GetScreenWidth();
         window_h = GetScreenHeight();