/**
 * Toast notification component
 * Displays temporary success/error/info messages
 */

import { useEffect } from 'react';
import { colors, radius, shadows, spacing, typography } from '../theme';

export type ToastType = 'success' | 'error' | 'info' | 'warning';

export interface ToastMessage {
  id: string;
  message: string;
  type: ToastType;
  duration?: number;
}

interface ToastProps {
  message: ToastMessage;
  onClose: (id: string) => void;
}

/**
 * Single toast notification
 */
export function Toast({ message, onClose }: ToastProps) {
  useEffect(() => {
    const timer = setTimeout(() => {
      onClose(message.id);
    }, message.duration || 5000);

    return () => clearTimeout(timer);
  }, [message.id, message.duration, onClose]);

  const backgroundColor = {
    success: colors.success,
    error: colors.error,
    info: colors.primary,
    warning: colors.warning,
  }[message.type];

  const icon = {
    success: '✓',
    error: '✕',
    info: 'ℹ',
    warning: '⚠',
  }[message.type];

  return (
    <div
      className="animate-slide-in flex min-w-[300px] max-w-[500px] items-center justify-between gap-4 px-6 py-4 text-white"
      style={{
        backgroundColor,
        borderRadius: radius.lg,
        boxShadow: shadows.card,
      }}
    >
      <div className="flex items-center gap-3">
        <span className="text-xl font-bold">{icon}</span>
        <span
          className="font-medium"
          style={{ fontSize: typography.fontSize.base, lineHeight: typography.lineHeight.normal }}
        >
          {message.message}
        </span>
      </div>
      <button
        onClick={() => onClose(message.id)}
        className="text-xl font-bold leading-none text-white transition-colors hover:text-gray-200"
        style={{ marginInlineStart: spacing.xs }}
        aria-label="Close"
      >
        ×
      </button>
    </div>
  );
}

/**
 * Toast container that displays all active toasts
 */
interface ToastContainerProps {
  messages: ToastMessage[];
  onClose: (id: string) => void;
}

export function ToastContainer({ messages, onClose }: ToastContainerProps) {
  if (messages.length === 0) return null;

  return (
    <div className="fixed right-4 top-4 z-50 flex flex-col gap-2">
      {messages.map((message) => (
        <Toast key={message.id} message={message} onClose={onClose} />
      ))}
    </div>
  );
}
