export enum AuthStatus
{
    disconnected, loading, connected
};
export interface Auth
{
    id: Ref<number>;
    data: Ref<Record<string, any>>;
    sessionId: Ref<string>;
    status: Ref<AuthStatus>;

    lastRefresh: Ref<Date>;

    register: (username: string, email: string, password: string, data?: Record<string, any>) => Promise<any>;
    login: (usernameOrEmail: string, password: string) => Promise<void>;
    logout: () => Promise<void>;

    refresh: () => Promise<void>;
}


async function register(username: string, email: string, password: string, additionalData?: Record<string, any>): Promise<any>
{
    const id = useState<number>("auth:id");
    const data = useState<any>("auth:data");
    const sessionId = useState<string>("auth:sessionId");
    const status = useState<AuthStatus>("auth:status");
    const lastRefresh = useState<Date>("auth:date");
    status.value = AuthStatus.loading;

    try
    {
        const result = await $fetch("/api/auth/register", {
            method: 'POST',
            body: { username, email, password, additionalData },
            ignoreResponseError: true,
        });

        if(result.success)
        {
            id.value = result.id!;
            data.value = { ...additionalData, username: username, email: email };
            sessionId.value = result.sessionId!;
            status.value = AuthStatus.connected;
            lastRefresh.value = new Date();

            return;
        }
        else if(result.error)
        {
            status.value = AuthStatus.disconnected;
            
            return result.error;
        }
        else
        {
            status.value = AuthStatus.disconnected;

            return;
        }
    }
    catch(e) { 
        console.log(JSON.stringify(e));
        status.value = AuthStatus.disconnected; 
    }
}
async function login(usernameOrEmail: string, password: string): Promise<void>
{
    const status = useState<AuthStatus>("auth:status");
    status.value = AuthStatus.disconnected;
}
async function logout(): Promise<void>
{
    const status = useState<AuthStatus>("auth:status");
    status.value = AuthStatus.disconnected;
}

async function refresh(): Promise<void>
{
    const status = useState<AuthStatus>("auth:status");
    status.value = AuthStatus.disconnected;
}

export default function useAuth(): Auth {
    const id = useState<number>("auth:id", () => 0);
    const data = useState<any>("auth:data", () => { });
    const sessionId = useState<string>("auth:sessionId", () => '');
    const status = useState<AuthStatus>("auth:status", () => AuthStatus.disconnected);

    const lastRefresh = useState<Date>("auth:date", () => new Date());

    return {
        id, data, sessionId, status, lastRefresh,
        register, login, logout, refresh
    };
}