"use client";

import { useTransition } from "react";
import { Loader2, BellRing } from "lucide-react";
import { toast } from "sonner";

import { Button } from "@/components/ui/button";
import { triggerAlertAction } from "./actions";

export function AlertButton({
  assignmentId,
}: {
  assignmentId: string;
}) {
  const [isPending, startTransition] = useTransition();

  const handleAlert = () => {
    if (!confirm("Bist du sicher? Dies löst den Notdienst-Alarm aus.")) return;
    
    startTransition(async () => {
      const result = await triggerAlertAction(assignmentId);
      if ("error" in result && result.error) {
        toast.error(result.error);
      } else {
        toast.success("Alarm erfolgreich ausgelöst. E-Mail wurde versendet.");
      }
    });
  };

  return (
    <Button variant="destructive" onClick={handleAlert} disabled={isPending}>
      {isPending ? (
        <Loader2 className="mr-2 h-4 w-4 animate-spin" />
      ) : (
        <BellRing className="mr-2 h-4 w-4" />
      )}
      Alarm auslösen
    </Button>
  );
}