feat: api client and natural login and logoff

src/providers/AuthProvider.tsx

@@ -1,20 +1,75 @@
-import { stringToBoolean } from "@/utils/converter";
+import apiClient from "@/services/api";
 import { signal, Signal } from "@preact/signals";
 import { createContext, JSX } from "preact";
-import { useContext } from "preact/hooks";
+import { useContext, useEffect } from "preact/hooks";
+
+interface UserData {
+  id: number;
+  username: string;
+  email: string;
+}
+
+interface AuthStatusResponse {
+  isAuthenticated: boolean;
+  user?: UserData;
+}
 
 interface AppContextValue {
   isLoggedIn: Signal<boolean>;
+  isCheckingAuth: Signal<boolean>;
+  currentUser: Signal<UserData | null>;
+  checkAuth: () => Promise<void>;
 }
-const ininitialValue = stringToBoolean(localStorage.getItem("loggedIn"));
 
-const AppContext = createContext<AppContextValue>({
-  isLoggedIn: signal(ininitialValue),
-});
+const initialLoggedIn = localStorage.getItem("loggedIn") === "true";
+
+const AppContext = createContext<AppContextValue | null>(null);
 
 const AppProvider = ({ children }: { children: JSX.Element }) => {
+  const isLoggedIn = signal(initialLoggedIn);
+  const isCheckingAuth = signal(true);
+  const currentUser = signal<UserData | null>(null);
+
+  const checkAuth = async () => {
+    console.log("Checking auth status...");
+    isCheckingAuth.value = true;
+    try {
+      const response = await apiClient<AuthStatusResponse>("/api/auth/status/", {
+        method: "GET",
+        needsCsrf: false,
+      });
+
+      if (response.isAuthenticated && response.user) {
+        console.log("User is authenticated:", response.user.username);
+        isLoggedIn.value = true;
+        currentUser.value = response.user;
+        localStorage.setItem("loggedIn", "true");
+      } else {
+        console.log("User is not authenticated.");
+        isLoggedIn.value = false;
+        currentUser.value = null;
+        localStorage.removeItem("loggedIn");
+      }
+    } catch (error: any) {
+      console.error("Auth check failed:", error.message);
+      isLoggedIn.value = false;
+      currentUser.value = null;
+      localStorage.removeItem("loggedIn");
+    } finally {
+      isCheckingAuth.value = false;
+      console.log("Auth check finished. isLoggedIn:", isLoggedIn.value);
+    }
+  };
+
+  useEffect(() => {
+    checkAuth();
+  }, []);
+
   const value: AppContextValue = {
-    isLoggedIn: signal(ininitialValue),
+    isLoggedIn,
+    isCheckingAuth,
+    currentUser,
+    checkAuth,
   };
 
   return <AppContext.Provider value={value}>{children}</AppContext.Provider>;
@@ -29,3 +84,4 @@ const useAppContext = () => {
 };
 
 export { AppProvider, useAppContext };
+export type { UserData };