#130 - Auto Submit Form When All Inputs Change v0.1

<!-- 💙 MEMBERSCRIPT #130 v0.1 💙 - AUTO SUBMIT FORMS FROM INPUT CHANGE -->
<script>
  document.addEventListener('DOMContentLoaded', () => {
    const forms = document.querySelectorAll('form[ms-code-auto-submit]');

    forms.forEach(form => {
      const fields = form.querySelectorAll('input:not([type="submit"]):not([type="button"]):not([type="reset"]), select, textarea');
      const fieldStates = new Map(Array.from(fields).map(field => [field, false]));

      function updateFieldState(field, checkImmediately = false) {
        switch (field.type) {
          case 'checkbox':
            fieldStates.set(field, true); // Considered interacted with once changed
            break;
          case 'radio':
            const radioGroup = form.querySelectorAll(`input[type="radio"][name="${field.name}"]`);
            radioGroup.forEach(radio => fieldStates.set(radio, true));
            break;
          case 'select-one':
          case 'select-multiple':
            fieldStates.set(field, field.value !== '');
            break;
          case 'file':
            fieldStates.set(field, field.files.length > 0);
            break;
          case 'hidden':
            fieldStates.set(field, true); // Always consider hidden fields as filled
            break;
          default:
            // For text inputs, only update on blur or if checkImmediately is true
            if (field.type === 'text' || field.type === 'password' || field.type === 'email' || field.type === 'tel' || field.type === 'url' || field.tagName === 'TEXTAREA') {
              if (checkImmediately || !field.dataset.blurred) {
                fieldStates.set(field, field.value.trim() !== '');
              }
            } else {
              fieldStates.set(field, field.value.trim() !== '');
            }
        }
        if (checkImmediately) {
          checkAndSubmit();
        }
      }

      function checkAndSubmit() {
        if (Array.from(fieldStates.values()).every(state => state)) {
          // Create and dispatch a submit event
          const submitEvent = new Event('submit', {
            bubbles: true,
            cancelable: true
          });

          const submitted = form.dispatchEvent(submitEvent);

          // If the event wasn't prevented, manually submit the form
          if (submitted) {
            form.submit();
          }
        }
      }

      fields.forEach(field => {
        // Use 'change' event for checkboxes, radios, file inputs, and selects
        if (['checkbox', 'radio', 'file', 'select-one', 'select-multiple'].includes(field.type) || field.tagName === 'SELECT') {
          field.addEventListener('change', () => updateFieldState(field, true));
        }

        // For text-like inputs, use 'blur' event
        if (field.type === 'text' || field.type === 'password' || field.type === 'email' || field.type === 'tel' || field.type === 'url' || field.tagName === 'TEXTAREA') {
          field.addEventListener('blur', () => {
            field.dataset.blurred = 'true';
            updateFieldState(field, true);
          });
          // Also check on input, but don't submit immediately
          field.addEventListener('input', () => updateFieldState(field, false));
        }
      });

      // Initial check for pre-filled fields (e.g., browser autofill)
      fields.forEach(field => updateFieldState(field, false));
      checkAndSubmit();
    });
  });
</script>