From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 15 Oct 2020 00:49:12 +0000 (+0100)
Subject: wip before reorg timezone type
X-Git-Tag: otter-0.2.0~640
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=c0fb67b8ca001e450cd206b466d962fd7f831511;p=otter.git

wip before reorg timezone type

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/gamestate.rs b/src/gamestate.rs
index db536c7c..1572cf62 100644
--- a/src/gamestate.rs
+++ b/src/gamestate.rs
@@ -174,7 +174,24 @@ impl Timestamp {
   }
 
   pub fn render(&self, tz: &Timezone) -> String {
-    format!("TS{}(@{:?})", self.0, tz)
+    #[derive(Error,Debug)]
+    enum E {
+      #[from] SystemTime(SystemTimeError);
+      #[from] Other(&'static str);
+    };
+
+    (||{
+      let then = SytemTime::UNIX_EPOCH.checked_add(
+        Duration::from_secs(tz.0)
+      ).ok_or("SystemTime wrap error!")?;
+      let elapsed = then.elapsed()?;
+      if elapsed > 86400/2 {
+        
+      }
+      let now = SystemTime::now();
+      let elapsed = now.duration_since(then);
+      
+      None => format!("TS{}(@{:?})", self.0, tz)
   }
 }