init commit

shared/components/src/utils/cookie.ts

@@ -0,0 +1,71 @@
+export function getCookie(name: string): string | null {
+    if (typeof document === 'undefined') {
+        return null;
+    }
+
+    const prefix = `${name}=`;
+    const cookie = document.cookie
+        .split(';')
+        .map((value) => value.trimStart())
+        .filter((value) => value.startsWith(prefix))[0];
+
+    if (!cookie) {
+        return null;
+    }
+
+    return cookie.substr(prefix.length);
+}
+
+export function setCookie(
+    name: string,
+    value: string,
+    domain: string,
+    expires = 0,
+    path = '/',
+): void {
+    if (typeof document === 'undefined') {
+        return undefined;
+    }
+
+    // Get any potential existing instances of this particular cookie
+    const existingCookie = getCookie(name);
+    let cookieValue = value;
+
+    if (existingCookie) {
+        // If exisitng cookie name does not include the value we are trying to set,
+        // then add it, otherwise use the existing cookie value
+        cookieValue = !existingCookie.includes(value)
+            ? `${existingCookie}+${value}`
+            : existingCookie;
+    }
+
+    let cookieString = `${name}=${cookieValue}; path=${path}; domain=${domain};`;
+
+    if (expires) {
+        const date = new Date();
+        date.setTime(date.getTime() + expires * 24 * 60 * 60 * 1000);
+
+        cookieString += ` expires=${date.toUTCString()};`;
+    }
+
+    document.cookie = cookieString;
+
+    // Returning undefined because of ESLint's "consistent-return" rule
+    return undefined;
+}
+
+export function clearCookie(name: string, domain: string, path = '/'): void {
+    if (typeof document === 'undefined') {
+        return undefined;
+    }
+
+    // Get any potential existing instances of this particular cookie
+    const existingCookie = getCookie(name);
+
+    if (existingCookie) {
+        // Set the cookie's expiration date to a past date
+        setCookie(name, '', domain, -1, path);
+    }
+
+    return undefined;
+}