From d1b67847a249d0dcb9da440a5e9dfdeb4e1f0242 Mon Sep 17 00:00:00 2001
From: Leon Sorokin <leeoniya@gmail.com>
Date: Thu, 25 Apr 2024 12:51:07 -0500
Subject: [PATCH] Migrations: Graph (old) percent stacked (#84335)

---
 public/app/plugins/panel/timeseries/migrations.ts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/public/app/plugins/panel/timeseries/migrations.ts b/public/app/plugins/panel/timeseries/migrations.ts
index c27205c84a69..edb9eba6a574 100644
--- a/public/app/plugins/panel/timeseries/migrations.ts
+++ b/public/app/plugins/panel/timeseries/migrations.ts
@@ -339,9 +339,22 @@ export function graphToTimeseriesOptions(angular: any): {
 
   if (angular.stack) {
     graph.stacking = {
-      mode: StackingMode.Normal,
+      mode: angular.percentage ? StackingMode.Percent : StackingMode.Normal,
       group: defaultGraphConfig.stacking!.group,
     };
+
+    if (angular.percentage) {
+      if (angular.yaxis) {
+        delete y1.min;
+        delete y1.max;
+
+        // TimeSeries currently uses 0-1 for percent, so allowing zero leaves only top and bottom ticks.
+        // removing it feels better. probably should fix in TimeSeries, but let's kick it down the road
+        if (y1.decimals === 0) {
+          delete y1.decimals;
+        }
+      }
+    }
   }
 
   y1.custom = omitBy(graph, isNil);