118 pesel validation

src/components/Dashboard/Form/ChildData/ChildData.js

@@ -4,6 +4,7 @@ import FieldWrapper from "../FieldWrapper/FieldWrapper";
 import styles from "./ChildData.scss";
 
 const { ipcRenderer } = require("electron");
+const { isPeselValid } = require("./../../../../../src/utils/validators");
 
 const ChildData = () => {
   const [childDataState, setChildDataState] = useState({
@@ -43,6 +44,7 @@ const ChildData = () => {
         name={`child.pesel`}
         componentSize="medium"
         component="input"
+        validator={isPeselValid}
       />
       <FieldWrapper
         name={`child.city`}

src/components/Dashboard/Form/FieldWrapper/FieldWrapper.js

@@ -7,7 +7,7 @@ import PropTypes from "prop-types";
 
 import OptionList from "./SelectOptions";
 
-const required = value => (value ? undefined : "Required");
+const { composeValidators } = require("./../../../../../src/utils/validators");
 
 const FieldWrapper = ({
   name,
@@ -16,7 +16,8 @@ const FieldWrapper = ({
   disabled,
   onFocus,
   options,
-  onChange
+  onChange,
+  validator
 }) => {
   const dataKeys = name.split(".");
   const mainKey = dataKeys[0];
@@ -30,7 +31,7 @@ const FieldWrapper = ({
           name={name}
           component={component}
           type="text"
-          validate={required}
+          validate={composeValidators(validator)}
           disabled={disabled}
         />
       ) : (
@@ -66,7 +67,8 @@ FieldWrapper.propTypes = {
   options: PropTypes.array,
   label: PropTypes.string,
   onFocus: PropTypes.func,
-  onChange: PropTypes.func
+  onChange: PropTypes.func,
+  validator: PropTypes.func
 };
 
 FieldWrapper.defaultProps = {

src/utils/validators.js

@@ -0,0 +1,21 @@
+const required = value => (value ? undefined : "Required");
+
+export const isPeselValid = pesel => {
+  if (typeof pesel === "undefined" || !/^[0-9]{11}$/.test(pesel))
+    return "Type PESEL";
+
+  const weights = [1, 3, 7, 9, 1, 3, 7, 9, 1, 3];
+  let sum = 0;
+
+  weights.forEach((weight, index) => {
+    sum += weight * pesel.substring(index, index + 1);
+  });
+
+  const checkSum = sum % 10 === 0 ? 0 : 10 - (sum % 10);
+
+  if (checkSum !== +pesel.substring(10, 11)) return "Invalid PESEL";
+};
+
+export const composeValidators = validator => value => {
+  return typeof validator === "undefined" ? required(value) : validator(value);
+};

src/utils/validators.test.js

@@ -0,0 +1,19 @@
+import { isPeselValid } from "./validators";
+
+describe("Validators", () => {
+  it("returns valid pesel", () => {
+    expect(isPeselValid("64042999928")).toBeUndefined();
+  });
+
+  it("return Type PESEL because of no value", () => {
+    expect(isPeselValid(undefined)).toBe("Type PESEL");
+  });
+
+  it("return Type PESEL because of too short text", () => {
+    expect(isPeselValid("9703100302")).toBe("Type PESEL");
+  });
+
+  it("return Invalid PESEL because of wrong numbers", () => {
+    expect(isPeselValid("97031003021")).toBe("Invalid PESEL");
+  });
+});