From 3e4fb93a594f11a80904653396698d6c70e07cb0 Mon Sep 17 00:00:00 2001
From: Niklas Halle <niklas@niklashalle.net>
Date: Sat, 31 Oct 2020 20:44:44 +0100
Subject: Initial public release

---
 src/metric/time.rs | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/metric/time.rs

(limited to 'src/metric/time.rs')

diff --git a/src/metric/time.rs b/src/metric/time.rs
new file mode 100644
index 0000000..f4ff4b8
--- /dev/null
+++ b/src/metric/time.rs
@@ -0,0 +1,36 @@
+use std::fmt::{Display, Formatter, Result};
+use std::ops::{Add, Sub, AddAssign, SubAssign, Div, Mul, DivAssign, MulAssign};
+
+use crate::metric::Unit;
+use crate::metric::Primitive;
+
+use crate::declare_unit_basics;
+
+#[derive(Copy, Clone, Debug, PartialOrd, PartialEq)]
+pub enum Time {
+    Base(f64, fn(f64) -> f64, &'static str),
+    Canonical(f64),
+    Second(f64),
+    Millisecond(f64),
+    Minute(f64),
+    Hour(f64),
+    Day(f64),
+    Year(f64),
+}
+
+impl Unit<Time> for Time {
+    fn to_si_unit(&self) -> Time {
+        match self {
+            Time::Base(_, _, _) => self.clone(),
+            Time::Canonical(value) => Time::Base(value.clone(), |x| x, "s"),
+            Time::Second(value) => Time::Base(value.clone(), |x| x, "s"),
+            Time::Millisecond(value) => Time::Base(value / 1000.0, |x| x * 1000.0, "ms"),
+            Time::Minute(value) => Time::Base(value * 60.0, |x| x / 60.0, "min"),
+            Time::Hour(value) => Time::Base(value * 3600.0, |x| x / 3600.0, "h"),
+            Time::Day(value) => Time::Base(value * 86400.0, |x| x / 86400.0, "d"),
+            Time::Year(value) => Time::Base(value * 31536000.0, |x| x / 31536000.0, "a")
+        }
+    }
+}
+
+declare_unit_basics!(Time);
\ No newline at end of file
-- 
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