taler-typescript-core

commit 08746f5bf0943bcb9134d5f90487f1b83aa1a115
parent 4e7967dbace6734ac364c30a9dc691c1014bea45
Author: Sebastian <sebasjm@gmail.com>
Date:   Thu, 15 Jun 2023 13:06:03 -0300

compare duration

Diffstat:
M
packages/taler-util/src/time.ts
 | 
23
+++++++++++++++++++++++

1 file changed, 23 insertions(+), 0 deletions(-)
diff --git a/packages/taler-util/src/time.ts b/packages/taler-util/src/time.ts
@@ -216,6 +216,29 @@ export namespace Duration {
     };
   }
 
+  /**
+   * Compare two durations.  Returns 0 when equal, -1 when a < b
+   * and +1 when a > b.
+   */
+  export function cmp(d1: Duration, d2: Duration): 1 | 0 | -1 {
+    if (d1.d_ms === "forever") {
+      if (d2.d_ms === "forever") {
+        return 0;
+      }
+      return 1;
+    }
+    if (d2.d_ms === "forever") {
+      return -1;
+    }
+    if (d1.d_ms == d2.d_ms) {
+      return 0;
+    }
+    if (d1.d_ms > d2.d_ms) {
+      return 1;
+    }
+    return -1;
+  }
+
   export function max(d1: Duration, d2: Duration): Duration {
     return durationMax(d1, d2);
   }