Switch display to black between 23h30 and 7h30

Cargo.toml

@@ -43,6 +43,7 @@ lto = "thin"
 
 [dependencies]
 anyhow = "1.0.97"
+chrono = "0.4.40"
 config = "0.15.11"
 image = "0.25.5"
 macroquad = { version = "0.4.14" }

src/main.rs

@@ -31,6 +31,11 @@ fn display_image_centered(texture: &Texture2D) {
     );
 }
 
+enum Mode {
+    Black,
+    Displayed,
+}
+
 #[macroquad::main(window_conf)]
 async fn main() -> anyhow::Result<()> {
     let settings = settings::Settings::new("settings.yml".into())?;
@@ -45,12 +50,29 @@ async fn main() -> anyhow::Result<()> {
             break;
         }
 
-        display_frame(&provider)?;
+        let now = chrono::Local::now().time();
+        let midnight = chrono::NaiveTime::from_hms_opt(23, 30, 0).unwrap();
+        let seven_am = chrono::NaiveTime::from_hms_opt(7, 30, 0).unwrap();
 
-        if time.elapsed() > settings.duration {
-            provider.load_next_image()?;
-            time = Instant::now();
+        let mode = if now >= midnight && now < seven_am {
+            Mode::Black
+        } else {
+            Mode::Displayed
+        };
+
+        match mode {
+            Mode::Black => {
+                clear_background(BLACK);
+            }
+            Mode::Displayed => {
+                display_frame(&provider)?;
+                if time.elapsed() > settings.duration {
+                    provider.load_next_image()?;
+                    time = Instant::now();
+                }
+            }
         }
+
         thread::sleep(Duration::from_millis(250));
         next_frame().await;
     }