Implement member management enhancements; add bulk import functionality and duplicate checking based on geburtsdatum. Update API to support new fields and improve error handling for member data submissions. Refactor member-related components for better user experience and data validation.

.output/server/chunks/_/members.mjs

@@ -72,16 +72,57 @@ async function writeMembers(members) {
     return false;
   }
 }
+function normalizeDate(dateString) {
+  if (!dateString) return "";
+  try {
+    const date = new Date(dateString);
+    if (isNaN(date.getTime())) return dateString.trim();
+    return date.toISOString().split("T")[0];
+  } catch (e) {
+    return dateString.trim();
+  }
+}
+function findDuplicateMember(members, firstName, lastName, geburtsdatum) {
+  const normalizedFirstName = (firstName || "").trim().toLowerCase();
+  const normalizedLastName = (lastName || "").trim().toLowerCase();
+  const normalizedDate = normalizeDate(geburtsdatum);
+  return members.find((m) => {
+    const mFirstName = (m.firstName || "").trim().toLowerCase();
+    const mLastName = (m.lastName || "").trim().toLowerCase();
+    const mDate = normalizeDate(m.geburtsdatum);
+    return mFirstName === normalizedFirstName && mLastName === normalizedLastName && mDate === normalizedDate && mDate !== "";
+  });
+}
 async function saveMember(memberData) {
   const members = await readMembers();
   if (memberData.id) {
     const index = members.findIndex((m) => m.id === memberData.id);
     if (index !== -1) {
+      const duplicate = findDuplicateMember(
+        members.filter((m) => m.id !== memberData.id),
+        memberData.firstName,
+        memberData.lastName,
+        memberData.geburtsdatum
+      );
+      if (duplicate) {
+        throw new Error("Ein Mitglied mit diesem Namen und Geburtsdatum existiert bereits.");
+      }
       members[index] = { ...members[index], ...memberData };
     } else {
       throw new Error("Mitglied nicht gefunden");
     }
   } else {
+    if (memberData.firstName && memberData.lastName && memberData.geburtsdatum) {
+      const duplicate = findDuplicateMember(
+        members,
+        memberData.firstName,
+        memberData.lastName,
+        memberData.geburtsdatum
+      );
+      if (duplicate) {
+        throw new Error("Ein Mitglied mit diesem Namen und Geburtsdatum existiert bereits.");
+      }
+    }
     const newMember = {
       ...memberData,
       id: randomUUID()
@@ -99,5 +140,5 @@ async function deleteMember(id) {
   return true;
 }
 
-export { deleteMember as d, readMembers as r, saveMember as s };
+export { deleteMember as d, normalizeDate as n, readMembers as r, saveMember as s, writeMembers as w };
 //# sourceMappingURL=members.mjs.map