$('#submitRegister').on('click', function () {
    console.log('クリックされました')

    const username = $('#registerUsername').val().trim();
    const email = $('#registerEmail').val().trim();
    const password = $('#registerPassword').val().trim();
    const confirmPassword = $('#registerConfirmPassword').val().trim();

    if (!email || !password || !confirmPassword) {
        alert('必須項目をすべて入力してください');
        return;
    }

    if (password !== confirmPassword) {
        alert('パスワードが一致しません');
        return;
    }

    const requestData = {
        username: username || null,
        email: email,
        password: password
    };

    $.ajax({
        url: 'http://192.168.1.192:8080/api/user/register',
        type: 'POST',
        contentType: 'application/json',
        data: JSON.stringify(requestData),
        success: function () {
            // alert('登録成功！');
            window.location.href = 'index.html';
        },
        error: function () {
            alert('登録に失敗しました');
        }
    });
});