Enhance proposal generation logic in FalukantService to prevent duplicate character usage

- Introduced a mechanism to track used character IDs, ensuring that previously proposed characters are excluded from future proposals.
- Added error handling and logging for scenarios where no eligible characters are found, improving traceability and user feedback.
- Implemented a fallback to include newer characters if older ones are unavailable, enhancing the robustness of the proposal generation process.

backend/services/falukantService.js

@@ -2462,12 +2462,28 @@ class FalukantService extends BaseService {
         try {
             const threeWeeksAgo = new Date(Date.now() - 21 * 24 * 60 * 60 * 1000);
             const proposalCount = Math.floor(Math.random() * 3) + 3;
+            let createdProposals = 0;
+            const usedCharacterIds = new Set(); // Verhindere doppelte Proposals
+            
+            // Hole bereits existierende Proposals, um diese Charaktere auszuschließen
+            const existingProposals = await DirectorProposal.findAll({
+                where: { employerUserId: falukantUserId },
+                attributes: ['directorCharacterId'],
+                raw: true
+            });
+            existingProposals.forEach(p => usedCharacterIds.add(p.directorCharacterId));
+            
             for (let i = 0; i < proposalCount; i++) {
-                const directorCharacter = await FalukantCharacter.findOne({
-                    where: {
-                        regionId,
-                        createdAt: { [Op.lt]: threeWeeksAgo },
-                    },
+                // Versuche zuerst Charaktere, die mindestens 3 Wochen alt sind
+                let whereClause = {
+                    regionId,
+                    userId: null, // Nur NPCs
+                    id: { [Op.notIn]: Array.from(usedCharacterIds) }, // Keine bereits verwendeten
+                    createdAt: { [Op.lt]: threeWeeksAgo },
+                };
+                
+                let directorCharacter = await FalukantCharacter.findOne({
+                    where: whereClause,
                     include: [
                         {
                             model: TitleOfNobility,
@@ -2477,9 +2493,41 @@ class FalukantService extends BaseService {
                     ],
                     order: sequelize.literal('RANDOM()'),
                 });
+                
+                // Fallback: Wenn keine älteren Charaktere gefunden werden, verwende auch neuere
                 if (!directorCharacter) {
-                    throw new Error('No directors available for the region');
+                    console.log(`[generateProposals] No characters older than 3 weeks found in region ${regionId}, trying all NPCs...`);
+                    whereClause = {
+                        regionId,
+                        userId: null, // Nur NPCs
+                        id: { [Op.notIn]: Array.from(usedCharacterIds) },
+                    };
+                    directorCharacter = await FalukantCharacter.findOne({
+                        where: whereClause,
+                        include: [
+                            {
+                                model: TitleOfNobility,
+                                as: 'nobleTitle',
+                                attributes: ['level'],
+                            },
+                        ],
+                        order: sequelize.literal('RANDOM()'),
+                    });
                 }
+                
+                if (!directorCharacter) {
+                    console.warn(`[generateProposals] No more available NPCs in region ${regionId} (${usedCharacterIds.size} already used)`);
+                    // Wenn keine Charaktere gefunden werden, breche die Schleife ab
+                    // aber wirf keinen Fehler, wenn bereits einige Proposals erstellt wurden
+                    if (createdProposals === 0) {
+                        throw new Error('No directors available for the region');
+                    }
+                    break; // Stoppe die Schleife, aber wirf keinen Fehler
+                }
+                
+                // Füge diesen Charakter zu den verwendeten hinzu
+                usedCharacterIds.add(directorCharacter.id);
+                
                 const avgKnowledge = await this.calculateAverageKnowledge(directorCharacter.id);
                 const proposedIncome = Math.round(
                     directorCharacter.nobleTitle.level * Math.pow(1.231, avgKnowledge / 1.5)
@@ -2489,9 +2537,12 @@ class FalukantService extends BaseService {
                     employerUserId: falukantUserId,
                     proposedIncome,
                 });
+                createdProposals++;
             }
+            
+            console.log(`[generateProposals] Created ${createdProposals} director proposals for region ${regionId}`);
         } catch (error) {
-            console.log(error.message, error.stack);
+            console.error('[generateProposals] Error:', error.message, error.stack);
             throw new Error(error.message);
         }
     }