push

Cargo.lock

@@ -920,6 +920,12 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "ics"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ebec52f461ade2d19e7b594ecbcd0723ba0ab0eefa8aae2281b78ff461a91fa"
+
 [[package]]
 name = "idna"
 version = "0.3.0"
@@ -1773,6 +1779,7 @@ dependencies = [
  "argon2",
  "chrono",
  "env_logger",
+ "ics",
  "log",
  "rocket",
  "rocket_dyn_templates",

Cargo.toml

@@ -16,3 +16,4 @@ serde = { version = "1.0", features = [ "derive" ]}
 serde_json = "1.0"
 chrono =  { version = "0.4", features = ["serde"]}
 tera =  { version = "1.18", features = ["date-locale"]}
+ics = "0.5"

src/model/planned_event.rs

@@ -1,4 +1,10 @@
+use std::io::Write;
+
 use chrono::NaiveDate;
+use ics::{
+    properties::{DtStart, Summary},
+    Event, ICalendar,
+};
 use serde::Serialize;
 use sqlx::{FromRow, SqlitePool};
 
@@ -207,25 +213,22 @@ FROM user_trip WHERE trip_details_id = (SELECT trip_details_id FROM planned_even
     }
 
     pub async fn get_ics_feed(db: &SqlitePool) -> String {
-        let mut res = String::new();
-        res.push_str("BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//rudernlinz.at//Trips//DE\r\nX-WR-CALNAME:Ruderausfahrten\r\nBEGIN:VTIMEZONE\r\nTZID:Europe/Vienna\r\nTZURL:http://tzurl.org/zoneinfo-outlook/Europe/Vienna\r\nX-LIC-LOCATION:Europe/Vienna\r\nBEGIN:DAYLIGHT\r\nTZOFFSETFROM:+0100\r\nTZOFFSETTO:+0200\r\nTZNAME:CEST\r\nDTSTART:19700329T020000\r\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\r\nEND:DAYLIGHT\r\nBEGIN:STANDARD\r\nTZOFFSETFROM:+0200\r\nTZOFFSETTO:+0100\r\nTZNAME:CET\r\nDTSTART:19701025T030000\r\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\r\nEND:STANDARD\r\nEND:VTIMEZONE");
+        let mut calendar = ICalendar::new("2.0", "ics-rs");
 
         let events = PlannedEvent::all(db).await;
         for event in events {
-            res.push_str("\r\nBEGIN:VEVENT");
-            res.push_str(&format!("\r\nUID:{}@rudernlinz.at", event.id));
-            res.push_str(&format!(
-                "\r\nDTSTART;TZID=Europe/Vienna:{}T{}00",
+            let mut vevent = Event::new(format!("{}@rudernlinz.at", event.id), "19900101T180000");
+            vevent.push(DtStart::new(format!(
+                "TZID=Europe/Vienna:{}T{}00",
                 event.day.replace('-', ""),
                 event.planned_starting_time.replace(':', "")
-            ));
-            res.push_str(&format!("\r\nDTSTAMP;TZID=Europe/Vienna:19900101T180000"));
-            res.push_str(&format!("\r\nSUMMARY:{}", event.name));
-            res.push_str("\r\nEND:VEVENT");
+            )));
+            vevent.push(Summary::new(event.name));
+            calendar.add_event(vevent);
         }
-
-        res.push_str("\r\nEND:VCALENDAR");
-        res
+        let mut buf = Vec::new();
+        write!(&mut buf, "{}", calendar).unwrap();
+        String::from_utf8(buf).unwrap()
     }
 }