Add windows notification support

src/lib.rs

@@ -201,7 +201,39 @@ pub mod pomodoro {
 
         #[cfg(target_os = "windows")]
         fn notify(state: &State) {
-            unimplemented!();
+            use winrt_notification::{Duration, Sound, Toast};
+
+            let toast = Toast::new(Toast::POWERSHELL_APP_ID);
+
+            match state {
+                State::Work => {
+                    toast
+                        .title("Time to Work!")
+                        .text1("Remember to stay focused!")
+                        .sound(Some(Sound::Default))
+                        .duration(Duration::Short)
+                        .show()
+                        .unwrap();
+                }
+                State::ShortBreak | State::LongBreak => {
+                    toast
+                        .title("Break Time!")
+                        .text1("Enjoy your well deserved rest!")
+                        .sound(Some(Sound::Default))
+                        .duration(Duration::Short)
+                        .show()
+                        .unwrap();
+                }
+                State::Inactive => {
+                    toast
+                        .title("Pomodoro Cycle Complete.")
+                        .text1("Now waiting for user input....")
+                        .sound(Some(Sound::Default))
+                        .duration(Duration::Short)
+                        .show()
+                        .unwrap();
+                }
+            }
         }
     }