Untitled

// components/download-all.tsx
import { useState } from "react";
import { Download } from "lucide-react";
import { motion } from "framer-motion";
import { useParams } from "next/navigation";
import { toast } from "sonner";
import { Button } from "@/components/ui/button";
import { Progress } from "@/components/ui/progress";

export function DownloadAll() {
  const [isDownloading, setIsDownloading] = useState(false);
  const [progress, setProgress] = useState(0);
  const [startTime, setStartTime] = useState<number | null>(null);
  const params = useParams();
  const clientId = params.clientId as string;

  const formatTimeRemaining = (seconds: number) => {
    if (seconds < 60) return `${Math.round(seconds)} Sekunden`;
    const minutes = Math.ceil(seconds / 60);
    return `${minutes} ${minutes === 1 ? 'Minute' : 'Minuten'}`;
  };

  const handleDownloadAll = async () => {
    try {
      setIsDownloading(true);
      setProgress(0);
      setStartTime(Date.now());

      toast.info("Download wird vorbereitet", {
        description: "Die Bilder werden zusammengefasst. Dies kann einige Minuten dauern."
      });

      const progressInterval = setInterval(() => {
        setProgress(prev => {
          const newProgress = prev + 0.5;
          return newProgress < 90 ? newProgress : prev;
        });
      }, 1000);

      const response = await fetch(`/api/download/${clientId}`, {
        method: 'GET',
        cache: 'no-store'
      });

      if (!response.ok) {
        throw new Error(`Download fehlgeschlagen (${response.status})`);
      }

      if (!response.body) {
        throw new Error('Keine Daten erhalten');
      }

      clearInterval(progressInterval);
      setProgress(95);

      const blob = await response.blob();
      const url = window.URL.createObjectURL(blob);
      const link = document.createElement("a");
      link.href = url;
      link.download = `${clientId}-fotos.zip`;

      document.body.appendChild(link);
      link.click();
      document.body.removeChild(link);
      window.URL.revokeObjectURL(url);

      setProgress(100);
      
      toast.success("Download erfolgreich", {
        description: "Die Datei wird jetzt heruntergeladen."
      });

      setTimeout(() => {
        setIsDownloading(false);
        setProgress(0);
        setStartTime(null);
      }, 3000);

    } catch (error) {
      console.error("Download failed:", error);
      setIsDownloading(false);
      setProgress(0);
      setStartTime(null);
      
      toast.error("Download fehlgeschlagen", {
        description: error.message || "Bitte versuchen Sie es später erneut."
      });
    }
  };

  const getStatusMessage = () => {
    if (!startTime) return "Wird vorbereitet...";
    
    const elapsedSeconds = (Date.now() - startTime) / 1000;
    const estimatedTotalSeconds = (elapsedSeconds / progress) * 100;
    const remainingSeconds = Math.max(0, estimatedTotalSeconds - elapsedSeconds);
    
    if (progress >= 100) return "Download abgeschlossen!";
    if (progress >= 95) return "Fast fertig...";
    
    return `Datei wird vorbereitet... (ca. ${formatTimeRemaining(remainingSeconds)} verbleibend)`;
  };

  return (
    <motion.div
      initial={{ opacity: 0, y: 20 }}
      animate={{ opacity: 1, y: 0 }}
      className="mb-12 rounded-lg border bg-card p-4 text-card-foreground shadow-sm"
    >
      <div className="flex flex-col items-center gap-4 text-center sm:flex-row sm:justify-between sm:text-left">
        <div>
          <h2 className="text-lg font-semibold">Alle Fotos herunterladen</h2>
          <p className="text-sm text-muted-foreground">
            Erhalten Sie alle Fotos in Originalqualität in einer einzigen Datei
          </p>
        </div>
        <div className="flex flex-col gap-2 min-w-[200px]">
          {isDownloading ? (
            <>
              <Progress value={progress} className="w-full" />
              <p className="text-sm text-muted-foreground text-center">
                {getStatusMessage()}
              </p>
            </>
          ) : (
            <Button size="lg" onClick={handleDownloadAll}>
              <Download className="mr-2 h-4 w-4" />
              Alle herunterladen
            </Button>
          )}
        </div>
      </div>
    </motion.div>
  );
}

export default DownloadAll;