fix: change camel case according to backend library

npm/ng-packs/packages/schematics/src/utils/text.ts

@@ -2,7 +2,7 @@ import { strings } from '@angular-devkit/core';
 
 export const lower = (text: string) => text.toLowerCase();
 export const upper = (text: string) => text.toUpperCase();
-export const camel = (text: string) => strings.camelize(_(text));
+export const camel = (text: string) => toCamelCase(_(text));
 export const pascal = (text: string) => strings.classify(_(text));
 export const kebab = (text: string) => strings.dasherize(_(text));
 export const snake = (text: string) => strings.underscore(_(text));
@@ -13,3 +13,41 @@ export const dir = (text: string) =>
 function _(text: string): string {
   return text.replace(/\./g, '_');
 }
+
+// https://github.com/JamesNK/Newtonsoft.Json/blob/master/Src/Newtonsoft.Json/Utilities/StringUtils.cs#L155
+function toCamelCase(str: string) {
+  if (!str || !isUpperCase(str[0])) return str;
+
+  const chars = str.split('');
+  const { length } = chars;
+
+  for (let i = 0; i < length; i++) {
+    if (i === 1 && !isUpperCase(chars[i])) break;
+
+    const hasNext = i + 1 < length;
+
+    if (i > 0 && hasNext && !isUpperCase(chars[i + 1])) {
+      if (isSeparator(chars[i + 1])) {
+        chars[i] = toLowerCase(chars[i]);
+      }
+
+      break;
+    }
+
+    chars[i] = toLowerCase(chars[i]);
+  }
+
+  return chars.join('');
+}
+
+function isSeparator(str = '') {
+  return /[\s\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,\-.\/:;<=>?@\[\]^_`{|}~]+/.test(str);
+}
+
+function isUpperCase(str = '') {
+  return /[A-Z]+/.test(str);
+}
+
+function toLowerCase(str = '') {
+  return str.toLowerCase();
+}