From 881ba5e7a640df51c5e156d8adee505352c692fb Mon Sep 17 00:00:00 2001
From: Darren Schroeder <343840+fdncred@users.noreply.github.com>
Date: Sat, 15 Jan 2022 18:22:42 -0600
Subject: [PATCH] port spark

---
 engine-q/fun/spark.nu | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 engine-q/fun/spark.nu

diff --git a/engine-q/fun/spark.nu b/engine-q/fun/spark.nu
new file mode 100644
index 0000000..bec01e5
--- /dev/null
+++ b/engine-q/fun/spark.nu
@@ -0,0 +1,23 @@
+let TICKS = ([(char -u "2581") 
+              (char -u "2582") 
+              (char -u "2583") 
+              (char -u "2584") 
+              (char -u "2585") 
+              (char -u "2586") 
+              (char -u "2587") 
+              (char -u "2588")])
+
+# send an array into spark and get a sparkline out
+# let v = [2, 250, 670, 890, 2, 430, 11, 908, 123, 57]
+# > spark $v
+# ▁▂▆▇▁▄▁█▁▁
+
+def spark [v: any] {
+    let min = ($v | math min)
+    let max = ($v | math max)
+    let scale = (($max - $min) / 7.)
+    for e in $v {
+        let i = (($e - $min) / $scale | into int)
+        $"($TICKS | get $i)"
+    } | str collect
+}
\ No newline at end of file