From cce7bd55da7c64055dd4036b622a13dc08265e5c Mon Sep 17 00:00:00 2001
From: minie4 <minie4@gmx.de>
Date: Mon, 28 Aug 2023 11:19:46 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=9A=91=20Prevent=20duplicate=20substituti?=
 =?UTF-8?q?ons?=
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- Prevent duplication if two substitution plan files are the same
---
 server/parser/index.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/server/parser/index.js b/server/parser/index.js
index 0f508db..3a1e448 100644
--- a/server/parser/index.js
+++ b/server/parser/index.js
@@ -40,7 +40,17 @@ export class Parser {
       for (const plan of plans) {
         const foundPlan = dayPlans.find((e) => e.date == plan.date);
         if (!foundPlan) dayPlans.push(plan);
-        else foundPlan.changes.push(...plan.changes);
+        else {
+          for (const change of plan.changes) {
+            // Make sure to not insert the exact same substitution twice
+            const changeExists = foundPlan.changes.find(
+              (e) => JSON.stringify(e) == JSON.stringify(change),
+            );
+            if (!changeExists) {
+              foundPlan.changes.push(change);
+            }
+          }
+        }
       }
       // Insert substitutions of all substitution plans
       for (const plan of dayPlans) {