feat: add notification if no recent logs found

Author: c-git

src/lib.rs

@@ -43,6 +43,11 @@ pub fn run(cli: &Cli) -> anyhow::Result<()> {
             .context("failed to send notification of processing failure")?,
     }
 
+    if let Some(msg) = app_state.generate_inactivity_msg() {
+        send_notification(&msg, &config_folder)
+            .context("failed to send notification of inactivity in logs")?
+    }
+
     if app_state.is_changed() {
         app_state
             .save(&cli.state_file)
@@ -82,7 +87,6 @@ pub fn build_err_msg_from_logs(log_infos: Vec<LogInfo>) -> String {
 pub fn process_logs_folder(app_state: &mut AppState) -> anyhow::Result<Vec<LogInfo>> {
     let mut result = Vec::new();
     let mut latest_timestamp = app_state.latest_log_datetime();
-    // TODO 3: Send notification if no logs detected in over 24 hours or over 6 hours and uptime is less than 24 hours
     for dir_entry in read_dir(app_state.logs_dir())
         .with_context(|| format!("failed to read log folder: {:?}", app_state.logs_dir()))?
     {

src/state.rs

@@ -14,6 +14,7 @@ pub struct AppState {
     alive_msg_time: Option<NaiveTime>,
     logs_dir: PathBuf,
     latest_log_datetime: NaiveDateTime,
+    allowed_num_hours_without_log: Option<i64>,
     #[serde(skip)]
     is_changed: bool,
 }
@@ -61,6 +62,7 @@ impl AppState {
                 NaiveTime::from_hms_opt(7, 0, 0)
                     .expect("should be valid as it is set at build time"),
             ),
+            allowed_num_hours_without_log: Some(24),
             latest_log_datetime: Local::now().naive_local(),
             logs_dir,
             is_changed: Default::default(),
@@ -107,4 +109,17 @@ impl AppState {
         self.is_changed = true;
         self.latest_log_datetime = value;
     }
+
+    pub(crate) fn generate_inactivity_msg(&self) -> Option<String> {
+        let allowed_hours = self.allowed_num_hours_without_log?;
+        let num_hours_since_log = Local::now()
+            .naive_local()
+            .signed_duration_since(self.latest_log_datetime)
+            .num_hours();
+        if num_hours_since_log > allowed_hours {
+            Some(format!("Most recent log found ({}) exceeds the allowed number of hours ({allowed_hours}) without a log. Currently {num_hours_since_log} hours without a log.", self.latest_log_datetime.format("%F %T")))
+        } else {
+            None
+        }
+    }
 }

tests/snapshots/log_parsing__output_snapshot-2.snap

@@ -7,4 +7,5 @@ AppState(
   alive_msg_time: Some("07:00:00"),
   logs_dir: "tests/sample_logs",
   latest_log_datetime: "2024-11-08T14:50:21",
+  allowed_num_hours_without_log: Some(24),
 )