Implement catchup hours logic

central_backend/src/utils/time_utils.rs

@@ -1,3 +1,4 @@
+use chrono::prelude::*;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 /// Get the current time since epoch
@@ -16,11 +17,25 @@ pub fn time_millis() -> u128 {
         .as_millis()
 }
 
-/// Get the number of the day since 01-01-1970 of a given UNIX timestamp
+/// Get the number of the day since 01-01-1970 of a given UNIX timestamp (UTC)
 pub fn day_number(time: u64) -> u64 {
     time / (3600 * 24)
 }
 
+/// Get current hour, 00 => 23 (local time)
+pub fn curr_hour() -> u32 {
+    let local: DateTime<Local> = Local::now();
+    local.hour()
+}
+
+/// Get the first second of the day (local time)
+pub fn time_start_of_day() -> anyhow::Result<u64> {
+    let local: DateTime<Local> = Local::now()
+        .with_time(NaiveTime::from_hms_opt(0, 0, 0).unwrap())
+        .unwrap();
+    Ok(local.timestamp() as u64)
+}
+
 #[cfg(test)]
 mod test {
     use crate::utils::time_utils::day_number;