"use client";

import { useState } from "react";

interface PaymentButtonProps {
  planId: string;
  planType: "setup" | "monthly";
  label: string;
  variant?: "primary" | "secondary";
}

export default function PaymentButton({ planId, planType, label, variant = "primary" }: PaymentButtonProps) {
  const [loading, setLoading] = useState(false);
  const [email, setEmail] = useState("");
  const [showModal, setShowModal] = useState(false);

  const handleCheckout = async (e: React.FormEvent) => {
    e.preventDefault();
    setLoading(true);

    try {
      const response = await fetch("/api/stripe/checkout", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          planId,
          planType,
          email,
        }),
      });

      const data = await response.json();

      if (data.url) {
        window.location.href = data.url;
      } else {
        alert("Error initiating checkout. Please try again.");
      }
    } catch (error) {
      console.error("Checkout error:", error);
      alert("Error initiating checkout. Please try again.");
    } finally {
      setLoading(false);
    }
  };

  const buttonClass = variant === "primary"
    ? "bg-brand-pink hover:bg-[#ff7bc0]"
    : "border border-white/20 hover:bg-white/10";

  return (
    <>
      <button
        onClick={() => setShowModal(true)}
        className={`w-full mt-6 py-2.5 rounded-lg font-semibold text-white transition ${buttonClass}`}
        disabled={loading}
      >
        {loading ? "Processing..." : label}
      </button>

      {showModal && (
        <div className="fixed inset-0 bg-black/70 flex items-center justify-center z-50 p-4">
          <div className="bg-[#1a1625] border border-white/20 rounded-2xl p-6 max-w-md w-full">
            <h3 className="text-xl font-bold text-white mb-4">Enter your email to continue</h3>
            <p className="text-white/60 text-sm mb-4">
              We&apos;ll send the payment link to your email.
            </p>
            <form onSubmit={handleCheckout}>
              <input
                type="email"
                required
                placeholder="your@email.com"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                className="w-full px-4 py-3 rounded-lg bg-white/10 border border-white/20 text-white placeholder:text-white/40 focus:outline-none focus:border-brand-pink mb-4"
              />
              <div className="flex gap-3">
                <button
                  type="button"
                  onClick={() => setShowModal(false)}
                  className="flex-1 px-4 py-2 rounded-lg border border-white/20 text-white/70 hover:bg-white/10 transition"
                >
                  Cancel
                </button>
                <button
                  type="submit"
                  disabled={loading}
                  className="flex-1 px-4 py-2 rounded-lg bg-brand-pink text-white font-semibold hover:bg-[#ff7bc0] transition disabled:opacity-50"
                >
                  {loading ? "Processing..." : "Continue to Payment"}
                </button>
              </div>
            </form>
          </div>
        </div>
      )}
    </>
  );
}