"use client";

import { useSearchParams } from "next/navigation";

import { Button } from "@/components/ui/button";
import { cn } from "@/lib/utils";

import { safeNextPath } from "@/lib/auth/safe-next-path";

type Props = {
  className?: string;
  label?: string;
  /** Override post-login redirect (defaults to `?next=` URL param or dashboard). */
  next?: string;
};

export function GoogleSignInButton({
  className,
  label = "Continue with Google",
  next: nextOverride,
}: Props) {
  const searchParams = useSearchParams();
  const next = safeNextPath(nextOverride ?? searchParams.get("next"));

  function signIn() {
    const url = new URL("/api/auth/google", window.location.origin);
    url.searchParams.set("next", next);
    window.location.href = url.toString();
  }

  return (
    <Button
      type="button"
      variant="outline"
      className={cn(
        "h-11 w-full rounded-xl border-border/80 bg-background font-medium shadow-sm",
        "hover:bg-muted/60 transition-premium",
        className,
      )}
      onClick={signIn}
    >
      <svg className="size-5 shrink-0" viewBox="0 0 24 24" aria-hidden>
        <path
          fill="#4285F4"
          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"
        />
        <path
          fill="#34A853"
          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"
        />
        <path
          fill="#FBBC05"
          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"
        />
        <path
          fill="#EA4335"
          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"
        />
      </svg>
      {label}
    </Button>
  );
}