"use client";

import { useState } from "react";
import { changePassword } from "./actions";

export function ChangePasswordForm() {
  const [success, setSuccess] = useState(false);
  const [error, setError] = useState("");
  const [pending, setPending] = useState(false);

  async function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
    e.preventDefault();
    const form = e.currentTarget;
    const fd = new FormData(form);

    const newPw = fd.get("newPassword") as string;
    const confirmPw = fd.get("confirmPassword") as string;
    if (newPw !== confirmPw) {
      setError("New passwords do not match");
      return;
    }

    setPending(true);
    setSuccess(false);
    setError("");
    const result = await changePassword(fd);
    setPending(false);

    if ("error" in result) {
      setError(result.error);
    } else {
      setSuccess(true);
      form.reset();
    }
  }

  return (
    <form onSubmit={handleSubmit} className="space-y-4">
      <div>
        <label className="block text-sm font-medium text-neutral-700 mb-1.5">
          Current password
        </label>
        <input
          type="password"
          name="currentPassword"
          autoComplete="current-password"
          className="w-full rounded-lg border border-neutral-300 px-3 py-2.5 text-sm focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-primary-500/20"
        />
      </div>
      <div>
        <label className="block text-sm font-medium text-neutral-700 mb-1.5">
          New password
        </label>
        <input
          type="password"
          name="newPassword"
          required
          minLength={8}
          autoComplete="new-password"
          className="w-full rounded-lg border border-neutral-300 px-3 py-2.5 text-sm focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-primary-500/20"
        />
      </div>
      <div>
        <label className="block text-sm font-medium text-neutral-700 mb-1.5">
          Confirm new password
        </label>
        <input
          type="password"
          name="confirmPassword"
          required
          minLength={8}
          autoComplete="new-password"
          className="w-full rounded-lg border border-neutral-300 px-3 py-2.5 text-sm focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-primary-500/20"
        />
      </div>

      {error && (
        <p className="text-sm text-danger-700 bg-danger-50 rounded-lg px-3 py-2">{error}</p>
      )}
      {success && (
        <p className="text-sm text-success-700 bg-success-50 rounded-lg px-3 py-2">
          Password changed successfully.
        </p>
      )}

      <button
        type="submit"
        disabled={pending}
        className="rounded-lg bg-primary-600 px-4 py-2.5 text-sm font-semibold text-white hover:bg-primary-700 disabled:opacity-60 transition-colors"
      >
        {pending ? "Saving…" : "Change Password"}
      </button>
    </form>
  );
}
