1 files changed, 62 insertions, 0 deletions
diff --git a/apps/web-shared/src/lib/session.ts b/apps/web-shared/src/lib/session.ts
new file mode 100644
index 0000000..4f40a17
--- /dev/null
+++ b/apps/web-shared/src/lib/session.ts
@@ -0,0 +1,62 @@
+import {Temporal} from "@js-temporal/polyfill";
+import {get_profile_for_active_check} from "./api/user";
+import {is_guid, session_storage_get_json, session_storage_set_json} from "./helpers";
+import {SECONDS_BETWEEN_SESSION_CHECK, StorageKeys} from "./configuration";
+import type {ISession} from "$shared/lib/models/ISession";
+
+export async function is_active(forceRefresh: boolean = false): Promise<boolean> {
+    const nowEpoch = Temporal.Now.instant().epochSeconds;
+    const data = session_storage_get_json(StorageKeys.session) as ISession;
+    const expiryEpoch = data?.lastChecked + SECONDS_BETWEEN_SESSION_CHECK;
+    const lastCheckIsStaleOrNone = !is_guid(data?.profile?.id) || (expiryEpoch < nowEpoch);
+    if (forceRefresh || lastCheckIsStaleOrNone) {
+        return await call_api();
+    } else {
+        const sessionIsValid = data.profile && is_guid(data.profile.id);
+        if (!sessionIsValid) {
+            clear_session_data();
+            console.log("Session data is not valid");
+        }
+        return sessionIsValid;
+    }
+}
+
+async function call_api(): Promise<boolean> {
+    console.log("Getting profile data while checking session state");
+    try {
+        const response = await get_profile_for_active_check();
+        if (response.ok) {
+            const userData = await response.data;
+            if (is_guid(userData.id) && userData.username) {
+                const session = {
+                    profile: userData,
+                    lastChecked: Temporal.Now.instant().epochSeconds
+                } as ISession;
+                session_storage_set_json(StorageKeys.session, session);
+                console.log("Successfully got profile data while checking session state");
+                return true;
+            } else {
+                console.error("Api returned invalid data while getting profile data");
+                clear_session_data();
+                return false;
+            }
+        } else {
+            console.error("Api returned unsuccessfully while getting profile data");
+            clear_session_data();
+            return false;
+        }
+    } catch (e) {
+        console.error(e);
+        clear_session_data();
+        return false;
+    }
+}
+
+export function clear_session_data() {
+    session_storage_set_json(StorageKeys.session, {});
+    console.log("Cleared session data.");
+}
+
+export function get_session_data(): ISession {
+    return session_storage_get_json(StorageKeys.session) as ISession;
+}