1 files changed, 13 insertions, 6 deletions
diff --git a/apps/cassiopeia/src/lib.rs b/apps/cassiopeia/src/lib.rs
index e391c695237e..895110fe218d 100644
--- a/apps/cassiopeia/src/lib.rs
+++ b/apps/cassiopeia/src/lib.rs
@@ -10,9 +10,11 @@
 
 mod data;
 mod date;
+mod error;
 mod format;
 pub mod meta;
 mod time;
+mod timeline;
 
 pub use date::Date;
 pub use time::Time;
@@ -46,17 +48,17 @@ impl Cassiopeia {
 
     /// Start a new work session (with optional 15 minute rounding)
     pub fn start(&mut self, round: bool) -> Option<()> {
-        let s = self.tf.start(round)?;
+        let delta = self.tf.timeline.start(Time::rounded(round)).ok()?;
         clean_ir(&mut self.ir);
-        append_ir(&mut self.ir, s.make_ir());
+        append_ir(&mut self.ir, delta.make_ir());
         format::write_file(self.path.as_str(), &mut self.ir)
     }
 
     /// Stop the existing work session (with optional 15 minute rounding)
     pub fn stop(&mut self, round: bool) -> Option<()> {
-        let s = self.tf.stop(round)?;
+        let delta = self.tf.timeline.stop(Time::rounded(round)).ok()?;
         clean_ir(&mut self.ir);
-        append_ir(&mut self.ir, s.make_ir());
+        append_ir(&mut self.ir, delta.make_ir());
         format::write_file(self.path.as_str(), &mut self.ir)
     }
 
@@ -70,6 +72,11 @@ impl Cassiopeia {
         clean_ir(&mut self.ir);
         format::write_file(self.path.as_str(), &mut self.ir)
     }
+
+    /// Collect statistics on previous work sessions
+    pub fn stat(&self) -> Option<String> {
+        None
+    }
 }
 
 /// An invoice generator builder
@@ -142,9 +149,9 @@ impl<'cass> Invoicer<'cass> {
             return None;
         }
 
-        let inv = self.tf.tf.invoice()?;
+        let delta = self.tf.tf.timeline.invoice(Date::today()).ok()?;
         clean_ir(&mut self.tf.ir);
-        append_ir(&mut self.tf.ir, inv.make_ir());
+        append_ir(&mut self.tf.ir, delta.make_ir());
         format::write_file(self.tf.path.as_str(), &mut self.tf.ir)
     }
 }