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use ffi;

pub struct RequestResult {
    pub buffer: ::memory::Buffer,
    pub immediate: Option<u32>,
}

pub struct RequestToken {
    pub(crate) _request_token: Box<ffi::infinity::requests::RequestToken>,
}

impl RequestToken {
    pub fn wait_until_completed(mut self) -> Option<RequestResult> {
        unsafe {
            self._request_token.waitUntilCompleted();
            if !self._request_token.wasSuccessful() {
                None
            } else {
                let buffer = ::memory::Buffer::from_raw(
                    ::std::mem::transmute(self._request_token.getRegion()));
                let immediate = if self._request_token.hasImmediateValue() {
                    Some(self._request_token.getImmediateValue())
                } else {
                    None
                };
                Some(RequestResult {
                    buffer,
                    immediate,
                })
            }
        }
    }

    pub fn check_if_completed(&mut self) -> bool {
        unsafe {
            self._request_token.checkIfCompleted()
        }
    }
}