From 7c66f167500f478ea9a092b588c6444f93c7d19b Mon Sep 17 00:00:00 2001
From: Zach Gollwitzer <zach@maybe.co>
Date: Fri, 28 Feb 2025 12:17:25 -0500
Subject: [PATCH] Invert liability graphs to have correct signage (#1928)

---
 app/models/account/chartable.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/app/models/account/chartable.rb b/app/models/account/chartable.rb
index aba8415c..2770da3b 100644
--- a/app/models/account/chartable.rb
+++ b/app/models/account/chartable.rb
@@ -14,6 +14,7 @@ module Account::Chartable
       ])
 
       balances = gapfill_balances(balances)
+      balances = invert_balances(balances) if favorable_direction == "down"
 
       values = [ nil, *balances ].each_cons(2).map do |prev, curr|
         Series::Value.new(
@@ -69,6 +70,13 @@ module Account::Chartable
         SQL
       end
 
+      def invert_balances(balances)
+        balances.map do |balance|
+          balance.balance = -balance.balance
+          balance
+        end
+      end
+
       def gapfill_balances(balances)
         gapfilled = []