From b3e48a0b06fbf82f8c7e099c4aa3546af269768a Mon Sep 17 00:00:00 2001
From: "Torsten Schulz (local)" <tsschulz@gmx.net>
Date: Wed, 3 Dec 2025 15:35:19 +0100
Subject: [PATCH] Refine price comparison logic in getProductPricesInCities
 method of FalukantService

- Introduced a small tolerance (0.01) for rounding errors in the price comparison, allowing for more accurate evaluations when determining if a city's price exceeds the current price.
- This change enhances the robustness of price calculations by accommodating potential floating-point inaccuracies.
---
 backend/services/falukantService.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/backend/services/falukantService.js b/backend/services/falukantService.js
index 6a5aed6..c4ac809 100644
--- a/backend/services/falukantService.js
+++ b/backend/services/falukantService.js
@@ -3750,8 +3750,9 @@ class FalukantService extends BaseService {
             console.log(`[getProductPricesInCities] City: ${city.name} (${city.id}), worthPercent=${worthPercent}, basePrice=${basePrice}, priceInCity=${priceInCity}, currentPrice=${currentPrice}, isBetter=${priceInCity > currentPrice}`);
             
             // Nur Städte zurückgeben, wo der Preis höher ist
-            // Keine Toleranz, da wir die aktuelle Stadt bereits ausschließen
-            if (priceInCity > currentPrice) {
+            // Kleine Toleranz (0.01) für Rundungsfehler bei Gleitkommaberechnungen
+            const PRICE_TOLERANCE = 0.01;
+            if (priceInCity > currentPrice - PRICE_TOLERANCE) {
                 // Branch-Typ bestimmen
                 let branchType = null; // null = kein Branch
                 if (city.branches && city.branches.length > 0) {