#72 - Validate Original Values v0.1

Only allow a form to be submitted if the input value is original (ie. Usernames)

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<!-- 💙 MEMBERSCRIPT #72 v0.1 💙 VALIDATE ORIGINAL VALUES -->

<style>
[ms-code-available="true"],
[ms-code-available="false"],
[ms-code-available="invalid"]{
    display: none;
}

.disabled {
    opacity: 0.5;
    pointer-events: none;
}
</style>

<script>
document.addEventListener('DOMContentLoaded', function() {
    let input = document.querySelector('[ms-code-available="input"]');
    let trueElement = document.querySelector('[ms-code-available="true"]');
    let falseElement = document.querySelector('[ms-code-available="false"]');
    let invalidElement = document.querySelector('[ms-code-available="invalid"]');
    let listElements = Array.from(document.querySelectorAll('[ms-code-available="list"]'));
    let submitButton = document.querySelector('[ms-code-available="submit"]');

    function checkUsername() {
        // Check if the input matches any of the list items
        let isTaken = listElements.some(elem => elem.textContent.trim() === input.value.trim());

        if (isTaken) {
            trueElement.style.display = 'none';
            falseElement.style.display = 'flex';
            submitButton.classList.add('disabled'); // disable the button if username is taken
        } else {
            trueElement.style.display = 'flex';
            falseElement.style.display = 'none';
            submitButton.classList.remove('disabled');
        }
    }

    input.addEventListener('input', function() {
        // Display the invalid element if input length is between 1 and 3
        if (input.value.length >= 1 && input.value.length <= 3) {
            invalidElement.style.display = 'flex';
        } else {
            invalidElement.style.display = 'none';
        }

        // Add the .disabled class to the submit button if input is empty or less than 3 characters
        if (input.value.length <= 3) {
            submitButton.classList.add('disabled');
            trueElement.style.display = 'none';
            falseElement.style.display = 'none';
        } else {
            checkUsername();
        }
    });
});
</script>

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