interface AccountPassword {
    account: string,
    password: string,
};

class LocalStorage {
    // 存储账号密码
    setAccountPassword = (accountPassword?: AccountPassword) => {
        if (accountPassword) {
            uni.setStorageSync('accountPassword', accountPassword);
        } else {
            uni.removeStorageSync('accountPassword');
        }
    }

    // 存储凭证
    setToken = (token: string) => {
        uni.setStorageSync('token', token);
    }

    // 获取账号密码
    getAccountPassword = () => {
        const accountPassword: AccountPassword | undefined = uni.getStorageSync('accountPassword');
        return accountPassword;
    }

    // 获取凭证
    getToken = () => {
        const token = uni.getStorageSync('token');

        if (token) {
            return token;
        } else {
            this.clear();
            return undefined;
        }
    }

    // 清除
    clear = () => {
        /*
         * 保留密码
         */
        const accountPassword = this.getAccountPassword();
        const cloneAccountPassword = accountPassword ? { ...accountPassword } : undefined;

        uni.clearStorageSync();
        this.setAccountPassword(cloneAccountPassword);
    }
}

export default new LocalStorage();