Move utility functions to util package

1 files changed, 89 insertions, 0 deletions

diff --git a/src/util.rs b/src/util.rs
index 3062c84..4f62849 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,3 +1,92 @@
+#[inline]
+pub fn adjust_times_add(mut y: i64, mut mo: i64, mut d: i64, mut h: i64, mut mi: i64, mut s: i64)
+    -> (i64, i64, i64, i64, i64, i64)
+{
+    macro_rules! fix {
+        {
+            $base:ident,
+            $border:expr,
+            $next:ident
+        } => {
+            while $base >= $border {
+                $next += 1;
+                $base -= $border;
+            }
+        }
+    }
+
+    fix! { s , 60, mi }
+    fix! { mi, 60, h  }
+    fix! { h , 24, d  }
+
+    if mo == 1 || mo == 3 || mo == 5 || mo == 7 || mo == 8 || mo == 10 || mo == 12 {
+        fix! { d , 31, mo }
+    } else {
+        fix! { d , 30, mo }
+    }
+
+    fix! { mo, 12, y  }
+
+    (y, mo, d, h, mi, s)
+}
+
+#[inline]
+pub fn adjust_times_sub(mut y: i64, mut mo: i64, mut d: i64, mut h: i64, mut mi: i64, mut s: i64)
+    -> (i64, i64, i64, i64, i64, i64)
+{
+
+    println!("s < 0  -> = {}", s);
+    if s < 0 {
+        println!("mi -= {}", (s.abs() / 60) + 1);
+        println!("s   = {}", (60 - (0 - s).abs()));
+
+        mi -= (s.abs() / 60) + 1;
+        s   = 60 - (0 - s).abs();
+    }
+    println!("");
+
+    println!("mi < 0  -> = {}", mi);
+    if mi < 0 {
+        println!("h -= {}", (mi.abs() / 60) + 1);
+        println!("mi = {}", (60 - (0 - mi).abs()));
+
+        h -= (mi.abs() / 60) + 1;
+        mi = 60 - (0 - mi).abs();
+    }
+    println!("");
+
+    println!("h < 0  -> = {}", h);
+    if h < 0 {
+        println!("d -= {}", (h.abs() / 24) + 1);
+        println!("h  = {}", (24 - (0 - h).abs()));
+
+        d -= (h.abs() / 24) + 1;
+        h  = 24 - (0 - h).abs();
+    }
+    println!("");
+
+    println!("d < 1  -> = {}", d);
+    if d < 1 {
+        println!("mo -= {}", (d.abs() / 32) + 1);
+        println!("d   = {}", (31 - (0 - d).abs()));
+
+        mo -= (d.abs() / 32) + 1;
+        d   = 31 - (0 - d).abs();
+    }
+    println!("");
+
+    println!("mo < 1  -> = {}", mo);
+    if mo < 1 {
+        println!("y -= {}", (mo.abs() / 13) + 1);
+        println!("mo = {}", (12 - (0 - mo).abs()));
+
+        y -= (mo.abs() / 13) + 1;
+        mo = 12 - (0 - mo).abs();
+    }
+
+    (y, mo, d, h, mi, s)
+}
+
 
 #[inline]
 pub fn get_num_of_days_in_month(y: i32, m: u32) -> u32 {