"use client";

import Link from "next/link";
import { useState } from "react";
import { useRegister } from "@/hooks/use-auth";
import { useConfig } from "@/hooks/use-channels";

export default function RegisterPage() {
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const { mutate: register, isPending, error } = useRegister();
  const { data: config } = useConfig();

  if (config && !config.allow_registration) {
    return (
      <div className="w-full max-w-sm space-y-4 text-center">
        <h1 className="text-xl font-semibold text-zinc-100">Registration disabled</h1>
        <p className="text-sm text-zinc-500">
          The administrator has disabled new account registration.
        </p>
        <Link href="/login" className="inline-block text-sm text-zinc-300 hover:text-white">
          Sign in instead
        </Link>
      </div>
    );
  }

  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();
    register({ email, password });
  };

  return (
    <div className="w-full max-w-sm space-y-6">
      <div className="space-y-1 text-center">
        <h1 className="text-xl font-semibold text-zinc-100">Create account</h1>
        <p className="text-sm text-zinc-500">start building your channels</p>
      </div>

      <form onSubmit={handleSubmit} className="space-y-4">
        <div className="space-y-1.5">
          <label className="block text-xs font-medium text-zinc-400">
            Email
          </label>
          <input
            type="email"
            required
            autoComplete="email"
            value={email}
            onChange={(e) => setEmail(e.target.value)}
            placeholder="you@example.com"
            className="w-full rounded-md border border-zinc-700 bg-zinc-900 px-3 py-2 text-sm text-zinc-100 placeholder:text-zinc-600 focus:border-zinc-500 focus:outline-none"
          />
        </div>

        <div className="space-y-1.5">
          <label className="block text-xs font-medium text-zinc-400">
            Password
          </label>
          <input
            type="password"
            required
            autoComplete="new-password"
            value={password}
            onChange={(e) => setPassword(e.target.value)}
            placeholder="••••••••"
            className="w-full rounded-md border border-zinc-700 bg-zinc-900 px-3 py-2 text-sm text-zinc-100 placeholder:text-zinc-600 focus:border-zinc-500 focus:outline-none"
          />
        </div>

        {error && <p className="text-xs text-red-400">{error.message}</p>}

        <button
          type="submit"
          disabled={isPending}
          className="w-full rounded-md bg-white px-3 py-2 text-sm font-medium text-zinc-900 transition-colors hover:bg-zinc-200 disabled:cursor-not-allowed disabled:opacity-50"
        >
          {isPending ? "Creating account…" : "Create account"}
        </button>
      </form>

      <p className="text-center text-xs text-zinc-500">
        Already have an account?{" "}
        <Link href="/login" className="text-zinc-300 hover:text-white">
          Sign in
        </Link>
      </p>
    </div>
  );
}