Entkopple Partnersuche vom Altersabstand und entferne garantierte Schwangerschaften

backend/utils/falukant/partnerCandidates.js

@@ -0,0 +1,20 @@
+import { Op, Sequelize } from 'sequelize';
+
+// One calendar day is one game year. Only the minimum age restricts age;
+// neither the age difference nor the date the character was created matters.
+export function buildPartnerCandidateQuery({ characterId, gender, regionId, titleId, minimumAge, now = new Date() }) {
+    const minimumAgeCutoff = new Date(now);
+    minimumAgeCutoff.setHours(0, 0, 0, 0);
+    minimumAgeCutoff.setDate(minimumAgeCutoff.getDate() - minimumAge + 1);
+    return {
+        where: {
+            id: { [Op.ne]: characterId },
+            gender: { [Op.ne]: gender },
+            regionId,
+            birthdate: { [Op.lt]: minimumAgeCutoff },
+            titleOfNobility: { [Op.between]: [titleId - 1, titleId + 1] },
+        },
+        order: Sequelize.literal('random()'),
+        limit: 5,
+    };
+}