Change for novelty: randomize channel programming order on launch

src/app.c

@@ -396,6 +396,7 @@ int app_init(App *app) {
 
     app->app_start_time = time(NULL);
     app->app_start_ticks = SDL_GetTicks64();
+    srand((unsigned int)app->app_start_time);
 
     if (TTF_Init() != 0) {
         fprintf(stderr, "SDL_ttf init failed: %s\n", TTF_GetError());

src/channel.c

@@ -213,7 +213,13 @@ static int load_channel_programs(Channel *channel, const char *channel_dir) {
         return 0;
     }
 
-    qsort(channel->programs, (size_t) channel->program_count, sizeof(ProgramEntry), compare_programs);
+    for (int i = channel->program_count - 1; i > 0; i--) {
+        int j = rand() % (i + 1);
+        ProgramEntry temp = channel->programs[i];
+        channel->programs[i] = channel->programs[j];
+        channel->programs[j] = temp;
+    }
+
     channel->total_duration_seconds = 0.0;
     for (int i = 0; i < channel->program_count; ++i) {
         channel->programs[i].start_offset_seconds = channel->total_duration_seconds;