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import { createContext, type ReactNode, useContext } from "react";
import { useMutation, useQuery } from "urql";
import {
GetCurrentUserDocument,
LoginDocument,
LogoutDocument,
} from "../graphql/generated/graphql";
type LoginResult = { success: true } | { success: false; error: string };
interface AuthContextType {
isLoggedIn: boolean;
isLoading: boolean;
login: (username: string, password: string) => Promise<LoginResult>;
logout: () => Promise<void>;
}
const AuthContext = createContext<AuthContextType | undefined>(undefined);
export function AuthProvider({ children }: { children: ReactNode }) {
const [, executeLogin] = useMutation(LoginDocument);
const [, executeLogout] = useMutation(LogoutDocument);
const [currentUserResult] = useQuery({
query: GetCurrentUserDocument,
});
const isLoggedIn = !!currentUserResult.data?.currentUser;
const isLoading = currentUserResult.fetching;
const login = async (
username: string,
password: string,
): Promise<LoginResult> => {
try {
const result = await executeLogin({ username, password });
if (result.error) {
const errorMessage =
result.error.graphQLErrors[0]?.message || result.error.message;
return { success: false, error: errorMessage };
}
if (result.data?.login?.user) {
return { success: true };
}
const errorMessage = "Invalid username or password";
return { success: false, error: errorMessage };
} catch (error) {
const errorMessage =
error instanceof Error ? error.message : "An unknown error occurred";
console.error("Login failed:", error);
return { success: false, error: errorMessage };
}
};
const logout = async () => {
try {
await executeLogout({});
} catch (error) {
console.error("Logout failed:", error);
}
};
return (
<AuthContext.Provider value={{ isLoggedIn, isLoading, login, logout }}>
{children}
</AuthContext.Provider>
);
}
export function useAuth() {
const context = useContext(AuthContext);
if (context === undefined) {
throw new Error("useAuth must be used within an AuthProvider");
}
return context;
}
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