/**
 * OAuth Buttons Component
 * Displays OAuth provider buttons with icons and brand colors
 */

import React from 'react';
import { Loader2 } from 'lucide-react';
import { useInitiateOAuth, useOAuthProviders } from '../hooks/useOAuth';

interface OAuthButtonsProps {
  onSuccess?: () => void;
  disabled?: boolean;
}

// Provider configurations with colors and icons
const providerConfig: Record<
  string,
  {
    name: string;
    bgColor: string;
    hoverColor: string;
    textColor: string;
    icon: string;
  }
> = {
  google: {
    name: 'Google',
    bgColor: 'bg-white',
    hoverColor: 'hover:bg-gray-50',
    textColor: 'text-gray-900',
    icon: 'G',
  },
  apple: {
    name: 'Apple',
    bgColor: 'bg-black',
    hoverColor: 'hover:bg-gray-900',
    textColor: 'text-white',
    icon: '',
  },
  facebook: {
    name: 'Facebook',
    bgColor: 'bg-[#1877F2]',
    hoverColor: 'hover:bg-[#166FE5]',
    textColor: 'text-white',
    icon: 'f',
  },
  linkedin: {
    name: 'LinkedIn',
    bgColor: 'bg-[#0A66C2]',
    hoverColor: 'hover:bg-[#095196]',
    textColor: 'text-white',
    icon: 'in',
  },
  microsoft: {
    name: 'Microsoft',
    bgColor: 'bg-[#00A4EF]',
    hoverColor: 'hover:bg-[#0078D4]',
    textColor: 'text-white',
    icon: 'M',
  },
  x: {
    name: 'X',
    bgColor: 'bg-black',
    hoverColor: 'hover:bg-gray-900',
    textColor: 'text-white',
    icon: 'X',
  },
  twitch: {
    name: 'Twitch',
    bgColor: 'bg-[#9146FF]',
    hoverColor: 'hover:bg-[#7D3ACE]',
    textColor: 'text-white',
    icon: 'T',
  },
};

const OAuthButtons: React.FC<OAuthButtonsProps> = ({ onSuccess, disabled = false }) => {
  const { data: providers, isLoading } = useOAuthProviders();
  const initiateMutation = useInitiateOAuth();

  const handleOAuthClick = (providerId: string) => {
    if (disabled || initiateMutation.isPending) return;

    initiateMutation.mutate(providerId, {
      onSuccess: () => {
        onSuccess?.();
      },
      onError: (error) => {
        console.error('OAuth initiation error:', error);
      },
    });
  };

  if (isLoading) {
    return (
      <div className="flex justify-center py-4">
        <Loader2 className="h-5 w-5 animate-spin text-gray-400" />
      </div>
    );
  }

  if (!providers || providers.length === 0) {
    return null;
  }

  return (
    <div className="space-y-3">
      {providers.map((provider) => {
        const config = providerConfig[provider.name] || {
          name: provider.display_name,
          bgColor: 'bg-gray-600',
          hoverColor: 'hover:bg-gray-700',
          textColor: 'text-white',
          icon: provider.display_name.charAt(0).toUpperCase(),
        };

        const isCurrentlyLoading =
          initiateMutation.isPending && initiateMutation.variables === provider.name;

        return (
          <button
            key={provider.name}
            type="button"
            onClick={() => handleOAuthClick(provider.name)}
            disabled={disabled || initiateMutation.isPending}
            className={`
              w-full flex items-center justify-center gap-3 py-3 px-4
              border rounded-lg shadow-sm text-sm font-medium
              transition-all duration-200 ease-in-out transform active:scale-[0.98]
              focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-gray-400
              disabled:opacity-50 disabled:cursor-not-allowed
              ${config.bgColor} ${config.hoverColor} ${config.textColor}
              ${provider.name === 'google' ? 'border-gray-300 dark:border-gray-700' : 'border-transparent'}
            `}
          >
            {isCurrentlyLoading ? (
              <>
                <Loader2 className="h-5 w-5 animate-spin" />
                <span>Connecting...</span>
              </>
            ) : (
              <>
                <span className="flex items-center justify-center w-5 h-5 font-bold text-sm">
                  {config.icon}
                </span>
                <span>Continue with {config.name}</span>
              </>
            )}
          </button>
        );
      })}
    </div>
  );
};

export default OAuthButtons;