const AUTH_TOKEN_KEY = 'token';

/**
 * 获取当前登录 token。
 */
export async function getToken(): Promise<string | null> {
    const storage = getChromeStorage();

    if (storage) {
        const result = await storage.get(AUTH_TOKEN_KEY);
        const value = result[AUTH_TOKEN_KEY];
        return typeof value === 'string' && value.length > 0 ? value : null;
    }

    return window.localStorage.getItem(AUTH_TOKEN_KEY);
}


/**
 * 清除当前登录 token。
 */
export async function logout(): Promise<void> {
    const storage = getChromeStorage();

    if (storage) {
        await storage.remove(AUTH_TOKEN_KEY);
        return;
    }
    console.log("溢出")

    window.localStorage.removeItem(AUTH_TOKEN_KEY);
}

export async function setToken(token: string): Promise<void> {
    const storage = getChromeStorage();

    if (storage) {
        await storage.set({ [AUTH_TOKEN_KEY]: token });
        return;
    }

    window.localStorage.setItem(AUTH_TOKEN_KEY, token);
}

/**
 * * 获取谷歌缓存
 */
function getChromeStorage(): chrome.storage.StorageArea | null {
    if (typeof chrome === 'undefined' || !chrome.storage?.local) {
        return null;
    }

    return chrome.storage.local;
}