feat: store language code of the consent in the cookie

Author: OndraM

docs/reference/api-reference.md

@@ -343,6 +343,7 @@ Returns the plugin's own cookie, or just one of the fields.
         consentId: string
         consentTimestamp: string,
         lastConsentTimestamp: string,
+        languageCode: string,
         services: {[key: string]: string[]}
     }
     ```
@@ -514,4 +515,4 @@ Reset CookieConsent.
 - **Example**:
     ```javascript
     CookieConsent.reset(true);
-    ```
+    ```

src/utils/cookies.js

@@ -166,9 +166,10 @@ export const saveCookiePreferences = () => {
         data: state._cookieData,
         consentTimestamp: state._consentTimestamp.toISOString(),
         consentId: state._consentId,
-        services: deepCopy(state._acceptedServices)
+        services: deepCopy(state._acceptedServices),
+        languageCode: globalObj._state._currentLanguageCode
     };
-	
+
     if (state._lastConsentTimestamp) {
         state._savedCookieContent.lastConsentTimestamp = state._lastConsentTimestamp.toISOString();
     }
@@ -399,4 +400,4 @@ export const getAllCookies = (regex) => {
     }
 
     return cookieNames;
-};
+};

tests/cookies.test.js

@@ -32,6 +32,7 @@ describe("Cookie should be created successfully", () => {
         expect(typeof ccCookie.consentId).toBe('string');
         expect(ccCookie.consentTimestamp).toBeDefined();
         expect(ccCookie.lastConsentTimestamp).toBeDefined();
+        expect(ccCookie.languageCode).toEqual('en');
         expect(ccCookie.categories).toEqual(['necessary', 'analytics', 'ads']);
         expect(ccCookie.services).toMatchObject({
             necessary: ['service1'],
@@ -64,4 +65,4 @@ describe("Cookie should be created successfully", () => {
         expect(allCookies.length).toBe(2);
         expect(allCookies).toContain('service1Cookie1', 'service1Cookie2');
     })
-})
+})

types/index.d.ts

@@ -175,6 +175,11 @@ declare namespace CookieConsent {
          */
         lastConsentTimestamp: string
 
+        /**
+         * Language code of the consent.
+         */
+        languageCode: string
+
         /**
          * All enabled services.
          */
@@ -214,10 +219,10 @@ declare namespace CookieConsent {
          * @default 'Lax'
          */
         sameSite?: 'Lax' | 'Strict' | 'None'
-        
+
         /**
          * Cookie secure flag.
-         * 
+         *
          * @default true
          */
         secure?: boolean
@@ -688,4 +693,4 @@ declare global {
     interface Window {
         CookieConsent: typeof CookieConsent
     }
-}
+}