import { promises } from 'fs';
import path from 'path';
import { randomUUID } from 'crypto';
import { d as decryptObject, a as encryptObject } from './encryption.mjs';

const getDataPath = (filename) => {
  const cwd = process.cwd();
  if (cwd.endsWith(".output")) {
    return path.join(cwd, "../server/data", filename);
  }
  return path.join(cwd, "server/data", filename);
};
const MEMBERS_FILE = getDataPath("members.json");
function getEncryptionKey() {
  return process.env.ENCRYPTION_KEY || "default-key-change-in-production";
}
function isEncrypted(data) {
  try {
    const parsed = JSON.parse(data.trim());
    if (Array.isArray(parsed)) {
      return false;
    }
    if (typeof parsed === "object" && parsed !== null && !parsed.encryptedData) {
      return false;
    }
    return false;
  } catch (e) {
    return true;
  }
}
async function readMembers() {
  try {
    const data = await promises.readFile(MEMBERS_FILE, "utf-8");
    const encrypted = isEncrypted(data);
    if (encrypted) {
      const encryptionKey = getEncryptionKey();
      try {
        return decryptObject(data, encryptionKey);
      } catch (decryptError) {
        console.error("Fehler beim Entschl\xFCsseln der Mitgliederdaten:", decryptError);
        try {
          const plainData = JSON.parse(data);
          console.warn("Entschl\xFCsselung fehlgeschlagen, versuche als unverschl\xFCsseltes Format zu lesen");
          return plainData;
        } catch (parseError) {
          console.error("Konnte Mitgliederdaten weder entschl\xFCsseln noch als JSON lesen");
          return [];
        }
      }
    } else {
      const members = JSON.parse(data);
      console.log("Migriere unverschl\xFCsselte Mitgliederdaten zu verschl\xFCsselter Speicherung...");
      await writeMembers(members);
      return members;
    }
  } catch (error) {
    if (error.code === "ENOENT") {
      return [];
    }
    console.error("Fehler beim Lesen der Mitgliederdaten:", error);
    return [];
  }
}
async function writeMembers(members) {
  try {
    const encryptionKey = getEncryptionKey();
    const encryptedData = encryptObject(members, encryptionKey);
    await promises.writeFile(MEMBERS_FILE, encryptedData, "utf-8");
    return true;
  } catch (error) {
    console.error("Fehler beim Schreiben der Mitgliederdaten:", error);
    return false;
  }
}
async function saveMember(memberData) {
  const members = await readMembers();
  if (memberData.id) {
    const index = members.findIndex((m) => m.id === memberData.id);
    if (index !== -1) {
      members[index] = { ...members[index], ...memberData };
    } else {
      throw new Error("Mitglied nicht gefunden");
    }
  } else {
    const newMember = {
      ...memberData,
      id: randomUUID()
      // Cryptographically secure unique ID
    };
    members.push(newMember);
  }
  await writeMembers(members);
  return true;
}
async function deleteMember(id) {
  const members = await readMembers();
  const filtered = members.filter((m) => m.id !== id);
  await writeMembers(filtered);
  return true;
}

export { deleteMember as d, readMembers as r, saveMember as s };
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