Add regional pricing calculation for products in FalukantService

- Introduced a new function `calcRegionalSellPrice` to compute product prices based on regional worth percentages.
- Updated existing methods to utilize the new pricing logic, ensuring revenue calculations reflect regional variations.
- Integrated retrieval of `TownProductWorth` data to enhance pricing accuracy across different regions.

backend/services/falukantService.js

@@ -61,6 +61,7 @@ import VehicleType from '../models/falukant/type/vehicle.js';
 import Vehicle from '../models/falukant/data/vehicle.js';
 import Transport from '../models/falukant/data/transport.js';
 import RegionDistance from '../models/falukant/data/region_distance.js';
+import TownProductWorth from '../models/falukant/data/town_product_worth.js';
 
 function calcAge(birthdate) {
     const b = new Date(birthdate); b.setHours(0, 0);
@@ -88,6 +89,22 @@ function calcSellPrice(product, knowledgeFactor = 0) {
     return min + (max - min) * (knowledgeFactor / 100);
 }
 
+async function calcRegionalSellPrice(product, knowledgeFactor, regionId) {
+    // Hole TownProductWorth für diese Region und dieses Produkt
+    const townWorth = await TownProductWorth.findOne({
+        where: { productId: product.id, regionId: regionId }
+    });
+    const worthPercent = townWorth?.worthPercent || 50; // Default 50% wenn nicht gefunden
+    
+    // Basispreis basierend auf regionalem worthPercent
+    const basePrice = product.sellCost * (worthPercent / 100);
+    
+    // Dann Knowledge-Faktor anwenden
+    const min = basePrice * 0.6;
+    const max = basePrice;
+    return min + (max - min) * (knowledgeFactor / 100);
+}
+
 function calculateMarriageCost(titleOfNobility, age) {
     const minTitle = 1;
     const adjustedTitle = titleOfNobility - minTitle + 1;
@@ -1121,7 +1138,8 @@ class FalukantService extends BaseService {
         if (available < quantity) throw new Error('Not enough inventory available');
         const item = inventory[0].productType;
         const knowledgeVal = item.knowledges?.[0]?.knowledge || 0;
-        const revenue = quantity * calcSellPrice(item, knowledgeVal);
+        const pricePerUnit = await calcRegionalSellPrice(item, knowledgeVal, branch.regionId);
+        const revenue = quantity * pricePerUnit;
         const moneyResult = await updateFalukantUserMoney(user.id, revenue, 'Product sale', user.id);
         if (!moneyResult.success) throw new Error('Failed to update money');
         let remaining = quantity;
@@ -1189,7 +1207,9 @@ class FalukantService extends BaseService {
         let total = 0;
         for (const item of inventory) {
             const knowledgeVal = item.productType.knowledges[0]?.knowledge || 0;
-            total += item.quantity * calcSellPrice(item.productType, knowledgeVal);
+            const regionId = item.stock.branch.regionId;
+            const pricePerUnit = await calcRegionalSellPrice(item.productType, knowledgeVal, regionId);
+            total += item.quantity * pricePerUnit;
             await this.addSellItem(item.stock.branch.id, falukantUser.id, item.productType.id, item.quantity);
         }
         const moneyResult = await updateFalukantUserMoney(
@@ -3564,10 +3584,26 @@ class FalukantService extends BaseService {
             ]
         });
 
+        // TownProductWorth für alle Städte und dieses Produkt abrufen
+        const townWorths = await TownProductWorth.findAll({
+            where: { productId: productId },
+            attributes: ['regionId', 'worthPercent']
+        });
+        const worthMap = new Map(townWorths.map(tw => [tw.regionId, tw.worthPercent]));
+
         // Für jede Stadt den Preis berechnen und Branch-Typ bestimmen
         const results = [];
         for (const city of cities) {
-            const priceInCity = calcSellPrice(product, knowledgeFactor);
+            // Regionaler Preis-Faktor (worthPercent zwischen 40-60)
+            const worthPercent = worthMap.get(city.id) || 50; // Default 50% wenn nicht gefunden
+            
+            // Basispreis basierend auf regionalem worthPercent
+            const basePrice = product.sellCost * (worthPercent / 100);
+            
+            // Dann Knowledge-Faktor anwenden (wie in calcSellPrice)
+            const min = basePrice * 0.6;
+            const max = basePrice;
+            const priceInCity = min + (max - min) * (knowledgeFactor / 100);
             
             // Nur Städte zurückgeben, wo der Preis höher ist
             if (priceInCity > currentPrice) {