feat: Build the edges of Switch by form data #1739 (#2022)

### What problem does this PR solve?

feat: Build the edges of Switch  by form data #1739

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/flow/utils.ts

@@ -1,7 +1,8 @@
 import { DSLComponents } from '@/interfaces/database/flow';
 import { removeUselessFieldsFromValues } from '@/utils/form';
+import { FormInstance, FormListFieldData } from 'antd';
 import { humanId } from 'human-id';
-import { curry, intersectionWith, isEqual, sample } from 'lodash';
+import { curry, get, intersectionWith, isEqual, sample } from 'lodash';
 import pipe from 'lodash/fp/pipe';
 import isObject from 'lodash/isObject';
 import { Edge, Node, Position } from 'reactflow';
@@ -209,3 +210,27 @@ export const buildNewPositionMap = (
 export const isKeysEqual = (currentKeys: string[], previousKeys: string[]) => {
   return isEqual(currentKeys.sort(), previousKeys.sort());
 };
+
+export const getOperatorIndex = (handleTitle: string) => {
+  return handleTitle.split(' ').at(-1);
+};
+
+// Get the value of other forms except itself
+export const getOtherFieldValues = (
+  form: FormInstance,
+  formListName: string = 'items',
+  field: FormListFieldData,
+  latestField: string,
+) =>
+  (form.getFieldValue([formListName]) ?? [])
+    .map((x: any) => {
+      return get(x, latestField);
+    })
+    .filter(
+      (x: string) =>
+        x !== form.getFieldValue([formListName, field.name, latestField]),
+    );
+
+export const generateSwitchHandleText = (idx: number) => {
+  return `Item ${idx + 1}`;
+};