1 files changed, 107 insertions, 0 deletions
diff --git a/src/core/utils/formValidation.js b/src/core/utils/formValidation.js
new file mode 100644
index 00000000..0e83f4cc
--- /dev/null
+++ b/src/core/utils/formValidation.js
@@ -0,0 +1,107 @@
+import { useCallback, useEffect, useState } from "react";
+
+const validateForm = (data, queries, hasChangedInputs = null) => {
+  let result = { valid: true, errors: {} };
+  
+  for (const query in queries) {
+    if (!hasChangedInputs || (hasChangedInputs && hasChangedInputs[query])) {
+      const value = data[query];
+      const rules = queries[query];
+      let errors = [];
+      let label = null;
+      for (const rule of rules) {
+        let emailValidationRegex = /^(([^<>()[\]\\.,;:\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 (rule.startsWith('label:')) {
+          label = rule.replace('label:', '');
+        } else if (rule === 'required' && !value) {
+          errors.push('tidak boleh kosong');
+        } else if (rule === 'email' && !value.match(emailValidationRegex)) {
+          errors.push('harus format johndoe@example.com');
+        } else if (rule.startsWith('maxLength:')) {
+          let maxLength = parseInt(rule.replace('maxLength:', ''));
+          if (value && value.length > maxLength) errors.push(`maksimal ${maxLength} karakter`);
+        }
+      }
+      if (errors.length > 0) {
+        result.errors[query] = (label || query) + ' ' + errors.join(', ');
+      }
+    }
+  }
+
+  if (Object.keys(result.errors).length > 0) {
+    result.valid = false;
+  }
+
+  return result;
+}
+
+const useFormValidation = ({ initialFormValue = {}, validationScheme = {} }) => {
+  const [ formInputs, setFormInputs ] = useState(initialFormValue);
+  const [ formErrors, setFormErrors ] = useState({});
+  const [ formValidation ] = useState(validationScheme);
+  const [ hasChangedInputs, setHasChangedInputs ] = useState({});
+  
+  const handleFormSubmit = (event, func) => {
+    if (event) {
+      event.preventDefault();
+      
+      // Make all input to be has changed mode to revalidate
+      const changedInputs = {};
+      for (const key in formInputs) changedInputs[key] = true;
+      setHasChangedInputs(changedInputs);
+
+      const { valid, errors } = validateForm(formInputs, formValidation, changedInputs);
+      setFormErrors(errors);
+      
+      if (valid) func();
+    }
+  };
+
+  const setChangedInput = (name, value = true) => {
+    setHasChangedInputs((hasChangedInputs) => ({
+      ...hasChangedInputs,
+      [name]: value
+    }));
+  };
+ 
+  const handleInputChange = (event) => {
+    setFormInputs((formInputs) => ({
+      ...formInputs,
+      [event.target.name]: event.target.value
+    }));
+    setChangedInput(event.target.name);
+  };
+
+  const handleSelectChange = useCallback((name, value) => {
+    setFormInputs((formInputs) => ({
+      ...formInputs,
+      [name]: value
+    }));
+    setChangedInput(name);
+  }, []);
+
+  const handleFormReset = () => {
+    setFormInputs(initialFormValue);
+    setFormErrors({});
+    setHasChangedInputs({});
+  }
+
+  useEffect(() => {
+    if (formInputs) {
+      const { errors } = validateForm(formInputs, formValidation, hasChangedInputs);
+      setFormErrors(errors);
+    }
+  }, [ formInputs, formValidation, hasChangedInputs ])
+ 
+  return {
+    handleFormReset,
+    handleFormSubmit,
+    handleInputChange,
+    handleSelectChange,
+    hasChangedInputs,
+    formInputs,
+    formErrors
+  };
+ };
+
+export default useFormValidation;
+\ No newline at end of file