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/home/mkuwqnjx/www/src/assets/js/pages/form-validation.js
/**
 * Theme: Forexo - Bootstrap 5 Responsive Admin Dashboard
 * Author: Mannatthemes
 * Form Validation Js
 */

 // Example starter JavaScript for disabling form submissions if there are invalid fields
(function () {
  'use strict'

  // Fetch all the forms we want to apply custom Bootstrap validation styles to
  var forms = document.querySelectorAll('.needs-validation')

  // Loop over them and prevent submission
  Array.prototype.slice.call(forms)
    .forEach(function (form) {
      form.addEventListener('submit', function (event) {
        if (!form.checkValidity()) {
          event.preventDefault()
          event.stopPropagation()
        }

        form.classList.add('was-validated')
      }, false)
    });

    const form = document.getElementById('form-validation-2');
    const username = document.getElementById('username');
    const email = document.getElementById('email');
    const password = document.getElementById('password');
    const password2 = document.getElementById('password2');

    //Show input error messages
    function showError(input, message) {
        const formControl = input.parentElement;
        console.log(formControl.children);
        formControl.children[1].classList.add('error');
        const small = formControl.querySelector('small');
        small.innerText = message;
        small.classList.add('error');
        small.classList.remove('success');        

    }

    //show success colour
    function showSucces(input) {
        const formControl = input.parentElement;
        formControl.children[1].classList.remove('error');
        formControl.children[1].classList.add('success');
        const small = formControl.querySelector('small');
        small.classList.add('success');
        small.classList.remove('error');

    }

    //check email is valid
    function checkEmail(input) {
        const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
        if(re.test(input.value.trim())) {
            showSucces(input)
        }else {
            showError(input,'Email is not invalid');
        }
    }


    //checkRequired fields
    function checkRequired(inputArr) {
        inputArr.forEach(function(input){
            if(input.value.trim() === ''){
                showError(input,`${getFieldName(input)} is required`)
            }else {
                showSucces(input);
            }
        });
    }


    //check input Length
    function checkLength(input, min ,max) {
        if(input.value.length < min) {
            showError(input, `${getFieldName(input)} must be at least ${min} characters`);
        }else if(input.value.length > max) {
            showError(input, `${getFieldName(input)} must be les than ${max} characters`);
        }else {
            showSucces(input);
        }
    }

    //get FieldName
    function getFieldName(input) {
        return input.id.charAt(0).toUpperCase() + input.id.slice(1);
    }

    // check passwords match
    function checkPasswordMatch(input1, input2) {
        if(input1.value !== input2.value) {
            showError(input2, 'Passwords do not match');
        }
    }


    //Event Listeners
    form.addEventListener('submit',function(e) {
        e.preventDefault();

        checkRequired([username, email, password, password2]);
        checkLength(username,3,15);
        checkLength(password,6,25);
        checkEmail(email);
        checkPasswordMatch(password, password2);
    });
})()