import React, { useState } from "react";
import { apiFetch } from "../api";
import { useAuth } from "../state";

export function UserSettingsPage() {
  const { tokens, refresh } = useAuth();
  const [form, setForm] = useState({
    current_password: "",
    new_password: "",
    confirm_password: "",
  });
  const [message, setMessage] = useState("");
  const [error, setError] = useState("");
  const [busy, setBusy] = useState(false);

  const submit = async (e) => {
    e.preventDefault();
    setMessage("");
    setError("");
    if (form.new_password.length < 8) {
      setError("New password must be at least 8 characters.");
      return;
    }
    if (form.new_password !== form.confirm_password) {
      setError("Password confirmation does not match.");
      return;
    }

    try {
      setBusy(true);
      await apiFetch(
        "/me/password",
        {
          method: "POST",
          body: JSON.stringify({
            current_password: form.current_password,
            new_password: form.new_password,
          }),
        },
        tokens,
        refresh
      );
      setForm({ current_password: "", new_password: "", confirm_password: "" });
      setMessage("Password changed successfully.");
    } catch (e) {
      setError(String(e.message || e));
    } finally {
      setBusy(false);
    }
  };

  return (
    <div className="user-settings-page">
      <h2>User Settings</h2>
      <p className="muted">Manage your personal account security settings.</p>
      {error && <div className="card error">{error}</div>}
      {message && <div className="test-connection-result ok">{message}</div>}

      <div className="card user-settings-card">
        <h3>Change Password</h3>
        <form className="grid two" onSubmit={submit}>
          <div className="admin-field field-full">
            <label>Current password</label>
            <input
              type="password"
              value={form.current_password}
              onChange={(e) => setForm({ ...form, current_password: e.target.value })}
              required
            />
          </div>
          <div className="admin-field">
            <label>New password</label>
            <input
              type="password"
              value={form.new_password}
              onChange={(e) => setForm({ ...form, new_password: e.target.value })}
              minLength={8}
              required
            />
          </div>
          <div className="admin-field">
            <label>Confirm new password</label>
            <input
              type="password"
              value={form.confirm_password}
              onChange={(e) => setForm({ ...form, confirm_password: e.target.value })}
              minLength={8}
              required
            />
          </div>
          <div className="form-actions field-full">
            <button className="primary-btn" type="submit" disabled={busy}>
              {busy ? "Saving..." : "Update Password"}
            </button>
          </div>
        </form>
      </div>
    </div>
  );
}