'use client';

import { useState } from 'react';
import { createClient } from '@/lib/supabase/client';
import { Button } from '@/components/ui/button';
import { Loader2 } from 'lucide-react';

function GitHubIcon({ className }: { className?: string }) {
  return (
    <svg viewBox="0 0 24 24" className={className} fill="currentColor">
      <path d="M12 0C5.37 0 0 5.37 0 12c0 5.31 3.435 9.795 8.205 11.385.6.105.825-.255.825-.57 0-.285-.015-1.23-.015-2.235-3.015.555-3.795-.735-4.035-1.41-.135-.345-.72-1.41-1.23-1.695-.42-.225-1.02-.78-.015-.795.945-.015 1.62.87 1.845 1.23 1.08 1.815 2.805 1.305 3.495.99.105-.78.42-1.305.765-1.605-2.67-.3-5.46-1.335-5.46-5.925 0-1.305.465-2.385 1.23-3.225-.12-.3-.54-1.53.12-3.18 0 0 1.005-.315 3.3 1.23.96-.27 1.98-.405 3-.405s2.04.135 3 .405c2.295-1.56 3.3-1.23 3.3-1.23.66 1.65.24 2.88.12 3.18.765.84 1.23 1.905 1.23 3.225 0 4.605-2.805 5.625-5.475 5.925.435.375.81 1.095.81 2.22 0 1.605-.015 2.895-.015 3.3 0 .315.225.69.825.57A12.02 12.02 0 0 0 24 12c0-6.63-5.37-12-12-12z" />
    </svg>
  );
}

function GoogleIcon({ className }: { className?: string }) {
  return (
    <svg viewBox="0 0 24 24" className={className}>
      <path
        d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92a5.06 5.06 0 0 1-2.2 3.32v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.1z"
        fill="#4285F4"
      />
      <path
        d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"
        fill="#34A853"
      />
      <path
        d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"
        fill="#FBBC05"
      />
      <path
        d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"
        fill="#EA4335"
      />
    </svg>
  );
}

type Provider = 'github' | 'google';

export function OAuthButtons() {
  const [loadingProvider, setLoadingProvider] = useState<Provider | null>(null);

  async function handleOAuth(provider: Provider) {
    setLoadingProvider(provider);
    const supabase = createClient();

    const { error } = await supabase.auth.signInWithOAuth({
      provider,
      options: {
        redirectTo: `${window.location.origin}/auth/callback`,
      },
    });

    if (error) {
      setLoadingProvider(null);
    }
  }

  return (
    <div className="grid grid-cols-2 gap-3">
      <Button
        variant="outline"
        type="button"
        disabled={loadingProvider !== null}
        onClick={() => handleOAuth('github')}
      >
        {loadingProvider === 'github' ? (
          <Loader2 className="mr-2 h-4 w-4 animate-spin" />
        ) : (
          <GitHubIcon className="mr-2 h-4 w-4" />
        )}
        GitHub
      </Button>
      <Button
        variant="outline"
        type="button"
        disabled={loadingProvider !== null}
        onClick={() => handleOAuth('google')}
      >
        {loadingProvider === 'google' ? (
          <Loader2 className="mr-2 h-4 w-4 animate-spin" />
        ) : (
          <GoogleIcon className="mr-2 h-4 w-4" />
        )}
        Google
      </Button>
    </div>
  );
}
