Add libauth.ts for centralised authentication

src/lib/libauth.ts

@@ -0,0 +1,60 @@
+import { uuid } from "./stores/uuid"
+
+export interface libauthResponse {
+    uuidPresent?: boolean;
+    serverAuthCheck?: boolean;
+    uuidValue?: string;
+    serverAuthCheckResponseCode?: number;
+}
+
+export async function checkAuth(): Promise<libauthResponse> {
+    let result: libauthResponse = {};
+    const uuidCheck = await checkUuid();
+    result.uuidPresent = uuidCheck.uuidPresent;
+    result.uuidValue = uuidCheck.uuidValue;
+    
+    const serverCheck = await checkServerAuth();
+    result.serverAuthCheck = serverCheck.authOk;
+    result.serverAuthCheckResponseCode = serverCheck.status;
+
+    return result
+}
+
+export async function checkUuid() {
+    let uuid_value: string = '';
+    uuid.subscribe((value => uuid_value = value))
+    console.log("uuid-value is: ", uuid_value)
+    if (uuid_value && uuid_value != 'null') {
+        return {
+            uuidPresent: true,
+            uuidValue: uuid_value,
+        }
+    }
+    return {
+        uuidPresent: false,
+        uuidValue: '',
+    }
+}
+
+export async function checkServerAuth() {
+    let uuid_value: string = '';
+    uuid.subscribe((value => uuid_value = value))
+    const url = "https://owlboard.info/api/v2/auth/check"
+    const options = {
+        method: 'GET',
+        headers: {
+          uuid: uuid_value,
+        }
+      };
+    const res = await fetch(url, options)
+    let ok: boolean;
+    if (res.status === 200) {
+        ok = true;
+    } else {
+        ok = false;
+    }
+    return {
+        authOk: ok,
+        status: res.status,
+    }
+}