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416
app/export/page.tsx
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416
app/export/page.tsx
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"use client";
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import { useState, useEffect } from "react";
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import { useSession } from "next-auth/react";
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import { useRouter } from "next/navigation";
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interface Device {
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id: string;
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name: string;
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color: string;
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}
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interface PreviewRow {
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datum: string;
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uhrzeit: string;
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latitude: string;
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longitude: string;
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adresse: string;
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distanz: string;
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geschwindigkeit: string;
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geraet: string;
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}
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export default function ExportPage() {
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const { data: session, status } = useSession();
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const router = useRouter();
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const [devices, setDevices] = useState<Device[]>([]);
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const [selectedDevice, setSelectedDevice] = useState<string>("all");
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const [startTime, setStartTime] = useState<string>("");
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const [endTime, setEndTime] = useState<string>("");
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const [previewData, setPreviewData] = useState<PreviewRow[]>([]);
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const [totalPoints, setTotalPoints] = useState<number>(0);
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const [loading, setLoading] = useState(false);
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const [exporting, setExporting] = useState(false);
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const [exportProgress, setExportProgress] = useState<string>("");
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// Redirect if not authenticated
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useEffect(() => {
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if (status === "unauthenticated") {
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router.push("/login");
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}
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}, [status, router]);
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// Fetch devices
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useEffect(() => {
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const fetchDevices = async () => {
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try {
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const response = await fetch("/api/devices/public");
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if (response.ok) {
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const data = await response.json();
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setDevices(data.devices || []);
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}
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} catch (err) {
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console.error("Failed to fetch devices:", err);
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}
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};
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if (status === "authenticated") {
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fetchDevices();
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}
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}, [status]);
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// Set default time range (last 7 days)
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useEffect(() => {
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const now = new Date();
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const sevenDaysAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
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// Format for datetime-local input (YYYY-MM-DDTHH:mm)
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setEndTime(now.toISOString().slice(0, 16));
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setStartTime(sevenDaysAgo.toISOString().slice(0, 16));
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}, []);
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// Generate preview
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const handlePreview = async () => {
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setLoading(true);
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setPreviewData([]);
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setTotalPoints(0);
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try {
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const params = new URLSearchParams();
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if (selectedDevice !== "all") {
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params.set("username", selectedDevice);
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}
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if (startTime) {
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params.set("startTime", new Date(startTime).toISOString());
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}
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if (endTime) {
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params.set("endTime", new Date(endTime).toISOString());
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}
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params.set("limit", "50"); // Preview only first 50
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const response = await fetch(`/api/locations?${params.toString()}`);
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if (!response.ok) throw new Error("Failed to fetch preview");
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const data = await response.json();
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const locations = data.history || [];
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setTotalPoints(locations.length);
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// Sort chronologically
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locations.sort((a: any, b: any) =>
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new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime()
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);
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// Build preview rows (without geocoding)
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const rows: PreviewRow[] = [];
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for (let i = 0; i < Math.min(locations.length, 50); i++) {
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const loc = locations[i];
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const lat = Number(loc.latitude);
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const lon = Number(loc.longitude);
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// Calculate distance
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let distance = 0;
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if (i > 0) {
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const prevLoc = locations[i - 1];
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distance = calculateDistance(
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Number(prevLoc.latitude),
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Number(prevLoc.longitude),
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lat,
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lon
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);
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}
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const date = new Date(loc.timestamp);
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rows.push({
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datum: date.toLocaleDateString('de-DE'),
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uhrzeit: date.toLocaleTimeString('de-DE'),
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latitude: lat.toFixed(6),
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longitude: lon.toFixed(6),
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adresse: `${lat.toFixed(6)}, ${lon.toFixed(6)}`,
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distanz: distance.toFixed(3),
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geschwindigkeit: loc.speed != null ? Number(loc.speed).toFixed(1) : '-',
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geraet: loc.username || 'Unbekannt',
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});
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}
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setPreviewData(rows);
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} catch (error) {
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console.error("Preview error:", error);
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alert("Fehler beim Laden der Vorschau");
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} finally {
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setLoading(false);
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}
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};
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// Export CSV with geocoding
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const handleExport = async () => {
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if (previewData.length === 0) {
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alert("Bitte zuerst Vorschau laden");
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return;
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}
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const confirmed = confirm(
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`${totalPoints} GPS-Punkte werden exportiert.\n\n` +
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`ACHTUNG: Adressauflösung (Geocoding) kann bei vielen Punkten sehr lange dauern (ca. 1 Punkt pro Sekunde).\n\n` +
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`Geschätzte Dauer: ca. ${Math.ceil(totalPoints / 60)} Minuten.\n\n` +
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`Möchten Sie fortfahren?`
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);
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if (!confirmed) return;
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setExporting(true);
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setExportProgress(`Starte Export von ${totalPoints} Punkten...`);
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try {
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const params = new URLSearchParams();
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if (selectedDevice !== "all") {
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params.set("username", selectedDevice);
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}
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if (startTime) {
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params.set("startTime", new Date(startTime).toISOString());
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}
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if (endTime) {
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params.set("endTime", new Date(endTime).toISOString());
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}
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params.set("includeGeocoding", "true");
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setExportProgress("Lade Daten und löse Adressen auf...");
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const response = await fetch(`/api/export/csv?${params.toString()}`);
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if (!response.ok) throw new Error("Export failed");
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const blob = await response.blob();
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const url = window.URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url;
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a.download = `fahrtenbuch_${startTime ? new Date(startTime).toISOString().split('T')[0] : 'alle'}_${endTime ? new Date(endTime).toISOString().split('T')[0] : 'alle'}.csv`;
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document.body.appendChild(a);
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a.click();
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window.URL.revokeObjectURL(url);
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document.body.removeChild(a);
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setExportProgress("Export erfolgreich abgeschlossen!");
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setTimeout(() => setExportProgress(""), 3000);
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} catch (error) {
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console.error("Export error:", error);
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alert("Fehler beim Exportieren");
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setExportProgress("");
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} finally {
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setExporting(false);
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}
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};
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// Export CSV without geocoding (faster)
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const handleQuickExport = async () => {
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if (previewData.length === 0) {
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alert("Bitte zuerst Vorschau laden");
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return;
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}
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setExporting(true);
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setExportProgress("Exportiere ohne Adressauflösung...");
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try {
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const params = new URLSearchParams();
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if (selectedDevice !== "all") {
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params.set("username", selectedDevice);
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}
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if (startTime) {
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params.set("startTime", new Date(startTime).toISOString());
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}
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if (endTime) {
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params.set("endTime", new Date(endTime).toISOString());
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}
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params.set("includeGeocoding", "false");
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const response = await fetch(`/api/export/csv?${params.toString()}`);
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if (!response.ok) throw new Error("Export failed");
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const blob = await response.blob();
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const url = window.URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url;
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a.download = `fahrtenbuch_schnell_${startTime ? new Date(startTime).toISOString().split('T')[0] : 'alle'}_${endTime ? new Date(endTime).toISOString().split('T')[0] : 'alle'}.csv`;
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document.body.appendChild(a);
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a.click();
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window.URL.revokeObjectURL(url);
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document.body.removeChild(a);
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setExportProgress("Export erfolgreich abgeschlossen!");
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setTimeout(() => setExportProgress(""), 3000);
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} catch (error) {
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console.error("Export error:", error);
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alert("Fehler beim Exportieren");
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setExportProgress("");
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} finally {
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setExporting(false);
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}
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};
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if (status === "loading") {
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return (
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<div className="min-h-screen flex items-center justify-center">
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<p>Laden...</p>
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</div>
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);
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}
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return (
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<div className="min-h-screen bg-gray-50 p-6">
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<div className="max-w-7xl mx-auto">
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<div className="bg-white rounded-lg shadow p-6 mb-6">
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<h1 className="text-3xl font-bold mb-2">CSV-Export für Fahrtenbuch</h1>
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<p className="text-gray-600 mb-6">
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Exportieren Sie Ihre GPS-Tracking-Daten für Lexware oder andere Fahrtenbuch-Software
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</p>
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{/* Filters */}
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<div className="grid grid-cols-1 md:grid-cols-3 gap-4 mb-6">
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<div>
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<label className="block text-sm font-medium mb-2">Gerät</label>
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<select
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value={selectedDevice}
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onChange={(e) => setSelectedDevice(e.target.value)}
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className="w-full border border-gray-300 rounded px-3 py-2"
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>
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<option value="all">Alle Geräte</option>
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{devices.map((dev) => (
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<option key={dev.id} value={dev.id}>
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{dev.name}
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</option>
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))}
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</select>
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</div>
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<div>
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<label className="block text-sm font-medium mb-2">Von</label>
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<input
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type="datetime-local"
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value={startTime}
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onChange={(e) => setStartTime(e.target.value)}
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className="w-full border border-gray-300 rounded px-3 py-2"
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/>
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</div>
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<div>
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<label className="block text-sm font-medium mb-2">Bis</label>
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<input
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type="datetime-local"
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value={endTime}
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onChange={(e) => setEndTime(e.target.value)}
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className="w-full border border-gray-300 rounded px-3 py-2"
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/>
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</div>
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</div>
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{/* Action Buttons */}
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<div className="flex gap-3 mb-6">
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<button
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onClick={handlePreview}
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disabled={loading}
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className="px-6 py-2 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:bg-gray-400"
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>
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{loading ? "Lädt..." : "Vorschau laden"}
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</button>
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<button
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onClick={handleQuickExport}
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disabled={exporting || previewData.length === 0}
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className="px-6 py-2 bg-green-600 text-white rounded hover:bg-green-700 disabled:bg-gray-400"
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>
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Schnell-Export (ohne Adressen)
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</button>
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<button
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onClick={handleExport}
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disabled={exporting || previewData.length === 0}
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className="px-6 py-2 bg-indigo-600 text-white rounded hover:bg-indigo-700 disabled:bg-gray-400"
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>
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Vollständiger Export (mit Adressen)
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</button>
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</div>
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{/* Progress */}
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{exportProgress && (
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<div className="mb-4 p-4 bg-blue-50 border border-blue-200 rounded">
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<p className="text-blue-800">{exportProgress}</p>
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</div>
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)}
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{/* Info */}
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{totalPoints > 0 && (
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<div className="mb-4 p-4 bg-yellow-50 border border-yellow-200 rounded">
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<p className="text-sm text-yellow-800">
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<strong>Gefunden:</strong> {totalPoints} GPS-Punkte im gewählten Zeitraum
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{totalPoints > 50 && " (Vorschau zeigt erste 50)"}
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</p>
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<p className="text-sm text-yellow-800 mt-1">
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<strong>Hinweis:</strong> Der vollständige Export mit Adressauflösung dauert ca. {Math.ceil(totalPoints / 60)} Minuten.
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Für schnelle Exporte nutzen Sie den Schnell-Export.
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</p>
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</div>
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)}
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</div>
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{/* Preview Table */}
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{previewData.length > 0 && (
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<div className="bg-white rounded-lg shadow p-6">
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<h2 className="text-xl font-bold mb-4">Vorschau (erste 50 Zeilen)</h2>
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<div className="overflow-x-auto">
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<table className="min-w-full divide-y divide-gray-200">
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<thead className="bg-gray-50">
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<tr>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Datum</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Uhrzeit</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Latitude</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Longitude</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Adresse</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Distanz (km)</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Geschw. (km/h)</th>
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<th className="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Gerät</th>
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</tr>
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</thead>
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<tbody className="bg-white divide-y divide-gray-200">
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{previewData.map((row, idx) => (
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<tr key={idx} className="hover:bg-gray-50">
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<td className="px-4 py-3 text-sm">{row.datum}</td>
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<td className="px-4 py-3 text-sm">{row.uhrzeit}</td>
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<td className="px-4 py-3 text-sm font-mono text-xs">{row.latitude}</td>
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<td className="px-4 py-3 text-sm font-mono text-xs">{row.longitude}</td>
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<td className="px-4 py-3 text-sm text-gray-600">{row.adresse}</td>
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<td className="px-4 py-3 text-sm">{row.distanz}</td>
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<td className="px-4 py-3 text-sm">{row.geschwindigkeit}</td>
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<td className="px-4 py-3 text-sm">{row.geraet}</td>
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</tr>
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))}
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</tbody>
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</table>
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</div>
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</div>
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)}
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</div>
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</div>
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);
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}
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// Haversine distance calculation (client-side for preview)
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function calculateDistance(lat1: number, lon1: number, lat2: number, lon2: number): number {
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const R = 6371;
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const dLat = toRadians(lat2 - lat1);
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const dLon = toRadians(lon2 - lon1);
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const a =
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Math.sin(dLat / 2) * Math.sin(dLat / 2) +
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Math.cos(toRadians(lat1)) *
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Math.cos(toRadians(lat2)) *
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Math.sin(dLon / 2) *
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Math.sin(dLon / 2);
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const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
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return R * c;
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}
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function toRadians(degrees: number): number {
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return degrees * (Math.PI / 180);
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}
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