From a38d4b19e3b9d8791773b6fd7171cfb07773f9ea Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Mon, 17 Dec 2018 21:42:47 +0100
Subject: Parse date/time into proper objects.

---
 src/main.rs | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index 4ce0158..a4728a1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -15,16 +15,33 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 use ical;
+use chrono::{DateTime, TimeZone, Utc};
 use std::fs::File;
 use std::io::BufReader;
 
 #[derive(Default)]
 struct Event {
-    start: String,
-    end: String,
+    start: Option<DateTime<Utc>>,
+    end: Option<DateTime<Utc>>,
     summary: String,
 }
 
+fn parse_datetime(datetime: Option<String>) -> Option<DateTime<Utc>> {
+    if let Some(mut dt) = datetime {
+        if dt.is_empty() {
+            return None;
+        }
+
+        if !dt.contains("T") {
+            dt += "T000000";
+        }
+        Utc.datetime_from_str(&dt, "%Y%m%dT%H%M%S").ok()
+    }
+    else {
+        None
+    }
+}
+
 fn main() {
     let buf = BufReader::new(File::open("test.ics").unwrap());
     let calendars: Vec<_> = ical::IcalParser::new(buf)
@@ -38,14 +55,17 @@ fn main() {
 
             for p in e.properties {
                 match p.name.as_ref() {
-                    "DTSTART" => ev.start = p.value.unwrap_or("".to_string()),
-                    "DTEND"   => ev.end = p.value.unwrap_or("".to_string()),
+                    "DTSTART" => ev.start = parse_datetime(p.value),
+                    "DTEND"   => ev.end = parse_datetime(p.value),
                     "SUMMARY" => ev.summary = p.value.unwrap_or("".to_string()),
                     _ => (),
                 }
             }
 
-            println!("---> {} - {}: {}", ev.start, ev.end, ev.summary);
+            println!("---> {} - {}: {}",
+                ev.start.unwrap_or(Utc::now()),
+                ev.end.unwrap_or(Utc::now()),
+                ev.summary);
         }
     }
 }
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