feat(FE): adding button filter component

src/lib/formik-helper.ts

@@ -1,4 +1,4 @@
-import { FormikErrors } from 'formik';
+import { FormikErrors, FormikValues } from 'formik';
 
 export type ErrorMessage = {
   key: string;
@@ -69,3 +69,66 @@ export function getUniqueFormikErrors<T>(errors: FormikErrors<T>): string[] {
 export function getAllFormikErrors<T>(errors: FormikErrors<T>): ErrorMessage[] {
   return parseFormikErrors(errors);
 }
+
+/**
+ * Check if a value is considered "filled" (not empty)
+ * @param value - Value to check
+ * @returns True if value is filled, false otherwise
+ */
+function isValueFilled(value: unknown): boolean {
+  // Check for null or undefined
+  if (value === null || value === undefined) {
+    return false;
+  }
+
+  // Check for empty string
+  if (typeof value === 'string' && value.trim() === '') {
+    return false;
+  }
+
+  // Check for empty array
+  if (Array.isArray(value) && value.length === 0) {
+    return false;
+  }
+
+  // Check for empty object (but not Date or other special objects)
+  if (
+    typeof value === 'object' &&
+    !Array.isArray(value) &&
+    !(value instanceof Date) &&
+    Object.keys(value).length === 0
+  ) {
+    return false;
+  }
+
+  return true;
+}
+
+/**
+ * Count the number of filled (non-empty) values in Formik values object
+ * @param values - Formik values object
+ * @returns Number of filled values
+ * @example
+ * const values = {
+ *   name: 'John',
+ *   email: '',
+ *   age: null,
+ *   tags: ['tag1', 'tag2'],
+ *   emptyArray: [],
+ * };
+ * getFilledFormikValuesCount(values); // Returns 2 (name and tags)
+ */
+export function getFilledFormikValuesCount<T extends FormikValues>(
+  values: T
+): number {
+  let count = 0;
+
+  Object.keys(values).forEach((key) => {
+    const value = values[key];
+    if (isValueFilled(value)) {
+      count++;
+    }
+  });
+
+  return count;
+}