1 files changed, 20 insertions, 0 deletions
diff --git a/src/model/event.rs b/src/model/event.rs
index 3765fec..b18d811 100644
--- a/src/model/event.rs
+++ b/src/model/event.rs
@@ -1,5 +1,6 @@
 use chrono::Timelike;
 use chrono::{NaiveDate, NaiveTime};
+use std::collections::HashMap;
 use uuid::Uuid;
 
 use crate::model::repetition::Repetition;
@@ -43,6 +44,25 @@ impl Event {
     }
 }
 
+/// Repeated events in an included date range
+pub fn repetitions_between(
+    events: &Vec<Event>,
+    start: NaiveDate,
+    end: NaiveDate,
+) -> HashMap<NaiveDate, Vec<Event>> {
+    let mut res: HashMap<NaiveDate, Vec<Event>> = HashMap::new();
+
+    for event in events {
+        for repetition in event.repetition.as_ref() {
+            for date in repetition.between(event.date, start, end) {
+                res.entry(date).or_insert(vec![]).push(event.clone())
+            }
+        }
+    }
+
+    res
+}
+
 pub fn pprint_time(t: NaiveTime) -> String {
     if t.minute() == 0 {
         format!("{}h", t.hour())