import React from "react";
import {
  Card,
  CardContent,
  CardFooter,
  CardHeader,
  CardTitle,
} from "@/components/ui/card.tsx";
import { Button } from "@/components/ui/button.tsx";
import { Badge } from "@/components/ui/badge.tsx";
import {
  X,
  ExternalLink,
  AlertTriangle,
  Info,
  CheckCircle,
  AlertCircle,
} from "lucide-react";
import { useTranslation } from "react-i18next";
import type { TermixAlert } from "../../../types/index.js";

interface AlertCardProps {
  alert: TermixAlert;
  onDismiss: (alertId: string) => void;
  onClose: () => void;
}

const getAlertIcon = (type?: string) => {
  switch (type) {
    case "warning":
      return <AlertTriangle className="h-5 w-5 text-yellow-500" />;
    case "error":
      return <AlertCircle className="h-5 w-5 text-red-500" />;
    case "success":
      return <CheckCircle className="h-5 w-5 text-green-500" />;
    case "info":
    default:
      return <Info className="h-5 w-5 text-blue-500" />;
  }
};

const getPriorityBadgeVariant = (priority?: string) => {
  switch (priority) {
    case "critical":
      return "destructive";
    case "high":
      return "destructive";
    case "medium":
      return "secondary";
    case "low":
    default:
      return "outline";
  }
};

const getTypeBadgeVariant = (type?: string) => {
  switch (type) {
    case "warning":
      return "secondary";
    case "error":
      return "destructive";
    case "success":
      return "default";
    case "info":
    default:
      return "outline";
  }
};

export function HomepageAlertCard({
  alert,
  onDismiss,
  onClose,
}: AlertCardProps): React.ReactElement {
  const { t } = useTranslation();

  if (!alert) {
    return null;
  }

  const handleDismiss = () => {
    onDismiss(alert.id);
    onClose();
  };

  const formatExpiryDate = (expiryString: string) => {
    const expiryDate = new Date(expiryString);
    const now = new Date();
    const diffTime = expiryDate.getTime() - now.getTime();
    const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));

    if (diffDays < 0) return t("common.expired");
    if (diffDays === 0) return t("common.expiresToday");
    if (diffDays === 1) return t("common.expiresTomorrow");
    return t("common.expiresInDays", { days: diffDays });
  };

  return (
    <Card className="w-full max-w-2xl mx-auto">
      <CardHeader className="pb-3">
        <div className="flex items-center justify-between">
          <div className="flex items-center gap-3">
            {getAlertIcon(alert.type)}
            <CardTitle className="text-xl font-bold">{alert.title}</CardTitle>
          </div>
          <Button
            variant="ghost"
            size="icon"
            onClick={onClose}
            className="h-8 w-8 p-0"
          >
            <X className="h-4 w-4" />
          </Button>
        </div>
        <div className="flex items-center gap-2 mt-2">
          {alert.priority && (
            <Badge variant={getPriorityBadgeVariant(alert.priority)}>
              {alert.priority.toUpperCase()}
            </Badge>
          )}
          {alert.type && (
            <Badge variant={getTypeBadgeVariant(alert.type)}>
              {alert.type}
            </Badge>
          )}
          <span className="text-sm text-muted-foreground">
            {formatExpiryDate(alert.expiresAt)}
          </span>
        </div>
      </CardHeader>
      <CardContent className="pb-4">
        <p className="text-muted-foreground leading-relaxed whitespace-pre-wrap">
          {alert.message}
        </p>
      </CardContent>
      <CardFooter className="flex items-center justify-between pt-0">
        <div className="flex gap-2">
          <Button variant="outline" onClick={handleDismiss}>
            Dismiss
          </Button>
          {alert.actionUrl && alert.actionText && (
            <Button
              variant="default"
              onClick={() =>
                window.open(alert.actionUrl, "_blank", "noopener,noreferrer")
              }
              className="gap-2"
            >
              {alert.actionText}
              <ExternalLink className="h-4 w-4" />
            </Button>
          )}
        </div>
      </CardFooter>
    </Card>
  );
}
