$(document).ready(function () {
    handleEvents();
});

function handleEvents() {
    // Prevent typing '+' character in phone number field
    $('#phoneNumber').on('keypress', function (e) {
        if (e.key === '+') {
            e.preventDefault();
        }
    });

    $("#btnVerify").on("click", function (e) {
        e.preventDefault();
        const firstName = $('#firstName').val().trim();
        const lastName = $('#lastName').val().trim();
        const email = $('#email').val().trim();
        const phoneNumber = $('#phoneNumber').val().trim();
        const accountNumber = $('#accountNumber').val().trim();
        const password = $('#password').val();
        const confirmPassword = $('#confirmPassword').val();

        let isValid = true;
        $('#createAccountModal input').removeClass('is-invalid');
        $('#passwordError').hide();
        $('#confirmPasswordError').hide();

        // Validate fields
        const namePattern = /^[A-Za-z]+$/;
        if (firstName === '') {
            $('#firstName').addClass('is-invalid');
            $('#firstName').next('.invalid-feedback').text('First name is required.');
            isValid = false;
        } else if (!namePattern.test(firstName)) {
            $('#firstName').addClass('is-invalid');
            $('#firstName').next('.invalid-feedback').text('First name must contain only letters (no spaces, numbers, or special characters).');
            isValid = false;
        }
        if (lastName === '') {
            $('#lastName').addClass('is-invalid');
            $('#lastName').next('.invalid-feedback').text('Last name is required.');
            isValid = false;
        } else if (!namePattern.test(lastName)) {
            $('#lastName').addClass('is-invalid');
            $('#lastName').next('.invalid-feedback').text('Last name must contain only letters (no spaces, numbers, or special characters).');
            isValid = false;
        }
        if (email === '') {
            $('#email').addClass('is-invalid');
            isValid = false;
        } else if (!validateEmail(email)) {
            $('#email').addClass('is-invalid');
            isValid = false;
        }

        // Require exactly 10 digits, no extension code
        let phonePattern = /^\d{10}$/;
        if (phoneNumber === '') {
            $('#phoneNumber').addClass('is-invalid');
            $('#phoneNumberError').show().text('Business phone number is required and must be 10 digits.');
            isValid = false;
        } else if (!phonePattern.test(phoneNumber)) {
            $('#phoneNumber').addClass('is-invalid');
            $('#phoneNumberError').show().text('Please enter a valid 10-digit phone number.');
            isValid = false;
        } else {
            $('#phoneNumber').removeClass('is-invalid').addClass('is-valid');
            $('#phoneNumberError').hide();
        }

        if (accountNumber === '') {
            $('#accountNumber').addClass('is-invalid');
            isValid = false;
        }

        // Password validation
        const passwordRequirements = [
            { regex: /.{8,}/, message: "at least 8 characters" },
            { regex: /[A-Z]/, message: "one uppercase letter" },
            { regex: /[a-z]/, message: "one lowercase letter" },
            { regex: /[0-9]/, message: "one number" },
            { regex: /[^A-Za-z0-9]/, message: "one special character" }
        ];
        let passwordErrors = [];
        if (!password) {
            passwordErrors.push("Password is required.");
        } else {
            passwordRequirements.forEach(req => {
                if (!req.regex.test(password)) {
                    passwordErrors.push("Password must contain " + req.message + ".");
                }
            });
        }
        if (passwordErrors.length > 0) {
            $('#password').addClass('is-invalid');
            $('#passwordError').show().html(passwordErrors.join('<br>'));
            isValid = false;
        }
        if (!confirmPassword) {
            $('#confirmPassword').addClass('is-invalid');
            $('#confirmPasswordError').show().text('Confirm password is required.');
            isValid = false;
        }
        if (password && confirmPassword && password !== confirmPassword) {
            $('#password').addClass('is-invalid');
            $('#confirmPassword').addClass('is-invalid');
            $('#confirmPasswordError').show().text('Passwords do not match.');
            isValid = false;
        }

        if (!isValid) {
            return;
        }
        const payload = {
            AccountNumber: accountNumber,
            Email: email,
            PhoneNumber: phoneNumber,
            FirstName: firstName,
            LastName: lastName,
            Password: password
        };
        verifyAccount(payload);
    });

    $("#btnCancel").on('click', function () {
        clearForm();
        $('#createAccountModal input').removeClass('is-invalid');
    });

    $('#createAccountModal').on('hidden.bs.modal', function () {
        clearForm();
        $('#createAccountModal input').removeClass('is-invalid');
    });
}

function validateEmail(email) {
    // Simple regex pattern for email validation
    const re = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
    return re.test(email);
}

function verifyAccount(data) {
    showLoader();
    let payload = {};
    payload.eventData = JSON.stringify(data);
    shell.ajaxSafePost({
        type: "POST",
        contentType: "application/json",
        url: "/_api/cloudflow/v1.0/trigger/5d97494d-1ba1-f011-bbd3-6045bd088d91",
        processData: false,
        data: JSON.stringify(payload),
        global: false,
    })
        .done(function (res) {
            hideLoader();
            let response;
            try {
                response = JSON.parse(res);
            } catch (e) {
                console.error("Failed to parse response:", e);
                showErrorToast("Invalid response");
                return;
            }
            if (document.activeElement) {
                document.activeElement.blur();
            }
            if (response.status != "Contact exists" && response.status != "No account exists" && response.status != "Something went wrong") {
                // Only close the modal on success
                const modalEl = document.getElementById('createAccountModal');
                const modal = bootstrap.Modal.getInstance(modalEl) || new bootstrap.Modal(modalEl);
                modal.hide();
                $('.modal-backdrop').remove();
                $('body').removeClass('modal-open');
                clearForm();
                // Show success modal
                const successModalEl = document.getElementById('successModal');
                if (window.setSuccessModalLoginHint) {
                    window.setSuccessModalLoginHint(data.Email);
                }
                setTimeout(() => {
                    successModalEl.removeAttribute('aria-hidden');
                    successModalEl.style.display = '';
                    let successModal = bootstrap.Modal.getInstance(successModalEl);
                    if (!successModal) {
                        successModal = new bootstrap.Modal(successModalEl, {
                            backdrop: 'static',
                            keyboard: true
                        });
                    }
                    successModal.show();
                    const focusTarget = successModalEl.querySelector('button, h1, [tabindex]');
                    if (focusTarget) focusTarget.focus();
                }, 200);
            }
            else {
                // Do NOT close or reset the modal on error
                if (response.status === "Contact exists") {
                    showErrorToast("You already have an account.");
                } else if (response.status === "No account exists") {
                    showErrorToast("Account number is invalid.");
                } else if (response.status === "Something went wrong") {
                    showErrorToast("Something went wrong. Please try again later.");
                } else {
                    showErrorToast("Something went wrong. Please try again later.");
                }
            }
        })
        .fail(function (error) {
            hideLoader();
            showErrorToast("failure");
            console.log(error);
            // Do not close or reset the modal on failure
        })
}


function clearForm() {
    $('#createAccountModal input').val('');
}