"use client";

import { useState } from "react";
import { whatsappLink } from "@/lib/site";

export default function CheckoutForm({
  token,
  itemName,
}: {
  token: string;
  itemName: string;
}) {
  const [form, setForm] = useState({ name: "", email: "", whatsapp: "", note: "" });
  const [status, setStatus] = useState<"idle" | "submitting" | "success">("idle");
  const [error, setError] = useState<string | null>(null);
  const [orderId, setOrderId] = useState<string | null>(null);

  async function handleSubmit(e: React.FormEvent) {
    e.preventDefault();
    setError(null);
    setStatus("submitting");
    try {
      const res = await fetch("/api/orders/", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ token, ...form }),
      });
      const data = await res.json();
      if (!res.ok) {
        setError(data.error ?? "Something went wrong. Please try again.");
        setStatus("idle");
        return;
      }
      setOrderId(data.orderId);
      setStatus("success");
    } catch {
      setError("Network error. Please try again.");
      setStatus("idle");
    }
  }

  if (status === "success") {
    return (
      <div className="rounded-3xl border border-emerald-200 bg-emerald-50 p-8 text-center">
        <span className="text-4xl" aria-hidden>✅</span>
        <h2 className="mt-4 text-xl font-bold text-slate-900">Order received!</h2>
        <p className="mt-2 text-sm leading-relaxed text-slate-600">
          Your order <strong>#{orderId?.slice(-8).toUpperCase()}</strong> for{" "}
          <strong>{itemName}</strong> has been recorded. Complete the payment via WhatsApp and our
          team will activate your access instantly.
        </p>
        <a
          href={whatsappLink(
            `Hi! I just placed order #${orderId?.slice(-8).toUpperCase()} for "${itemName}". Please share the payment details.`
          )}
          target="_blank"
          rel="noopener noreferrer"
          className="mt-6 inline-flex items-center gap-2 rounded-xl bg-emerald-600 px-7 py-3.5 text-sm font-semibold text-white transition-colors hover:bg-emerald-700"
        >
          <svg className="h-4 w-4" fill="currentColor" viewBox="0 0 24 24">
            <path d="M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z" />
          </svg>
          Complete payment on WhatsApp
        </a>
      </div>
    );
  }

  return (
    <form onSubmit={handleSubmit} className="space-y-4">
      <div>
        <label htmlFor="name" className="mb-1.5 block text-sm font-semibold text-slate-700">
          Full name
        </label>
        <input
          id="name"
          required
          value={form.name}
          onChange={(e) => setForm({ ...form, name: e.target.value })}
          placeholder="Your name"
          className="w-full rounded-xl border border-slate-200 px-4 py-3 text-sm outline-none transition-colors focus:border-brand-400 focus:ring-2 focus:ring-brand-100"
        />
      </div>
      <div>
        <label htmlFor="email" className="mb-1.5 block text-sm font-semibold text-slate-700">
          Email address
        </label>
        <input
          id="email"
          type="email"
          required
          value={form.email}
          onChange={(e) => setForm({ ...form, email: e.target.value })}
          placeholder="you@example.com"
          className="w-full rounded-xl border border-slate-200 px-4 py-3 text-sm outline-none transition-colors focus:border-brand-400 focus:ring-2 focus:ring-brand-100"
        />
      </div>
      <div>
        <label htmlFor="whatsapp" className="mb-1.5 block text-sm font-semibold text-slate-700">
          WhatsApp number
        </label>
        <input
          id="whatsapp"
          required
          value={form.whatsapp}
          onChange={(e) => setForm({ ...form, whatsapp: e.target.value })}
          placeholder="+880 1XXX-XXXXXX"
          className="w-full rounded-xl border border-slate-200 px-4 py-3 text-sm outline-none transition-colors focus:border-brand-400 focus:ring-2 focus:ring-brand-100"
        />
      </div>
      <div>
        <label htmlFor="note" className="mb-1.5 block text-sm font-semibold text-slate-700">
          Note <span className="font-normal text-slate-400">(optional)</span>
        </label>
        <textarea
          id="note"
          rows={3}
          value={form.note}
          onChange={(e) => setForm({ ...form, note: e.target.value })}
          placeholder="Anything we should know?"
          className="w-full rounded-xl border border-slate-200 px-4 py-3 text-sm outline-none transition-colors focus:border-brand-400 focus:ring-2 focus:ring-brand-100"
        />
      </div>

      {error && (
        <p className="rounded-xl bg-red-50 px-4 py-3 text-sm font-medium text-red-600">{error}</p>
      )}

      <button
        type="submit"
        disabled={status === "submitting"}
        className="w-full rounded-xl bg-brand-600 px-6 py-3.5 text-sm font-semibold text-white shadow-lg shadow-brand-600/25 transition-colors hover:bg-brand-700 disabled:opacity-60"
      >
        {status === "submitting" ? "Placing order..." : "Place Order"}
      </button>
      <p className="text-center text-xs text-slate-400">
        After placing the order you&apos;ll complete payment through WhatsApp — access is delivered
        instantly after confirmation.
      </p>
    </form>
  );
}