Füge myTischtennis-Verbindung hinzu: Implementiere Authentifizierung, Import von TTR-Werten und speichere Verbindungsdaten sicher

server/utils/qttr-import.js

@@ -1,5 +1,7 @@
 import { promises as fs } from 'fs'
 import { getServerDataPath } from './paths.js'
+import { fetchClubRankings } from './mytischtennis-client.js'
+import { readMyTischtennisConnection, saveMyTischtennisConnection } from './mytischtennis-connection.js'
 
 const QTTR_URL = 'https://www.mytischtennis.de/rankings/andro-rangliste?continent=all&country=Deutschland&all-players=on&as=DE.WE.R4.07&di=DE.WE.R4.07.04&area=DE.WE.R4.07.04.43&clubnr-search=Harheimer+TC&clubnr=43030&fednickname=HeTTV&gender=all&current-ranking=no&ttr-range=100%3B3000&birth-range=1926%3B2021'
 const OUTPUT_FILE = getServerDataPath('qttr-values.json')
@@ -160,6 +162,9 @@ function deriveQttrFields(headers, cells) {
 }
 
 export async function importQttrValues(options = {}) {
+  const connection = options.connection ?? await readMyTischtennisConnection()
+  if (connection) return importAuthenticatedTtrValues(connection)
+
   const url = options.url || QTTR_URL
   const response = await fetch(url, {
     headers: {
@@ -207,4 +212,32 @@ export async function importQttrValues(options = {}) {
     rowCount: parsedRows.length,
     ...payload
   }
-}
+}
+
+async function importAuthenticatedTtrValues(connection) {
+  const entries = await fetchClubRankings(connection)
+  const rows = entries.map((entry, index) => ({
+    rank: toNumberOrNull(entry.rank ?? entry.ranking ?? index + 1),
+    playerNumber: toNumberOrNull(entry.playernr ?? entry.player_number ?? entry.nuid),
+    gender: normalizeGender(entry.gender),
+    playerName: `${entry.firstname ?? entry.first_name ?? ''} ${entry.lastname ?? entry.last_name ?? ''}`.trim() || entry.name || null,
+    clubName: entry.clubname ?? entry.club_name ?? 'Harheimer TC',
+    currentQttr: toNumberOrNull(entry.qttr ?? entry.q_ttr ?? entry.ttr),
+    currentTtr: toNumberOrNull(entry.ttr ?? entry.current_ttr),
+    previousQttr: null,
+    valuesByHeader: entry,
+    rawCells: []
+  })).filter(row => row.playerName && row.currentQttr != null)
+
+  if (!rows.length) throw new Error('Keine verwertbaren TTR-Werte in der myTischtennis-Rangliste gefunden.')
+  const importedAt = new Date().toISOString()
+  const payload = {
+    format: 'harheimertc.qttr.v2', importedAt,
+    source: { type: 'mytischtennis-authenticated', association: connection.association, clubId: connection.clubId },
+    title: 'Aktuelle myTischtennis-Rangliste', headerCount: 0, rowCount: rows.length, headers: [], rows
+  }
+  await fs.mkdir(getServerDataPath(), { recursive: true })
+  await fs.writeFile(OUTPUT_FILE, `${JSON.stringify(payload, null, 2)}\n`, 'utf8')
+  await saveMyTischtennisConnection({ ...connection, lastSuccessfulImportAt: importedAt, lastImportError: null })
+  return { outputFile: OUTPUT_FILE, tableCount: 1, ...payload }
+}