"use client";

import { useEffect, useState } from "react";
import { doesSessionExist } from "supertokens-web-js/recipe/thirdpartyemailpassword";
import { useRouter } from "next/navigation";
import { Button } from "@/components/ui/button";
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";

export default function SuperTokensAuthComponent() {
  const router = useRouter();
  const [isLoading, setIsLoading] = useState(false);

  useEffect(() => {
    // Check if user is already logged in
    doesSessionExist().then((exists) => {
      if (exists) {
        router.push("/marks-account/projects");
      }
    });
  }, [router]);

  const handleGoogleSignIn = async () => {
    setIsLoading(true);
    try {
      // Get Google OAuth URL from SuperTokens
      const response = await fetch("/api/auth/authorisationurl?thirdPartyId=google");
      const data = await response.json();
      
      if (data.status === "OK") {
        // Redirect to Google OAuth
        window.location.href = data.urlWithQueryParams;
      } else {
        console.error("Failed to get auth URL:", data);
        setIsLoading(false);
      }
    } catch (error) {
      console.error("Google sign-in error:", error);
      setIsLoading(false);
    }
  };

  return (
    <div className="flex min-h-screen items-center justify-center bg-background p-4">
      <div className="w-full max-w-md space-y-6">
        {/* Logo */}
        <div className="flex justify-center">
          <img 
            src="/vibn-black-circle-logo.png" 
            alt="Vib'n" 
            className="h-16 w-16"
          />
        </div>

        {/* Auth Card */}
        <Card>
          <CardHeader className="space-y-1">
            <CardTitle className="text-2xl font-bold text-center">
              Welcome to Vib'n
            </CardTitle>
            <CardDescription className="text-center">
              Sign in to continue
            </CardDescription>
          </CardHeader>
          <CardContent className="space-y-4">
            <Button
              type="button"
              variant="outline"
              className="w-full"
              onClick={handleGoogleSignIn}
              disabled={isLoading}
            >
              <svg className="mr-2 h-4 w-4" viewBox="0 0 24 24">
                <path
                  d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"
                  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>
              {isLoading ? "Signing in..." : "Continue with Google"}
            </Button>
          </CardContent>
        </Card>

        {/* Footer */}
        <p className="text-center text-xs text-muted-foreground">
          By continuing, you agree to our Terms of Service and Privacy Policy.
        </p>
      </div>
    </div>
  );
}