// Take a look at the license at the top of the repository in the LICENSE file.

#[cfg(any(feature = "v2_66", feature = "dox"))]
use crate::TlsChannelBindingType;
use crate::TlsConnection;
#[cfg(any(feature = "v2_66", feature = "dox"))]
use glib::translate::*;
use glib::IsA;
#[cfg(any(feature = "v2_66", feature = "dox"))]
use std::ptr;

pub trait TlsConnectionExtManual {
    /// Query the TLS backend for TLS channel binding data of `type_` for `self`.
    ///
    /// This call retrieves TLS channel binding data as specified in RFC
    /// [5056](https://tools.ietf.org/html/rfc5056), RFC
    /// [5929](https://tools.ietf.org/html/rfc5929), and related RFCs. The
    /// binding data is returned in `data`. The `data` is resized by the callee
    /// using [`glib::ByteArray`][crate::glib::ByteArray] buffer management and will be freed when the `data`
    /// is destroyed by `g_byte_array_unref()`. If `data` is [`None`], it will only
    /// check whether TLS backend is able to fetch the data (e.g. whether `type_`
    /// is supported by the TLS backend). It does not guarantee that the data
    /// will be available though. That could happen if TLS connection does not
    /// support `type_` or the binding data is not available yet due to additional
    /// negotiation or input required.
    /// ## `type_`
    /// [`TlsChannelBindingType`][crate::TlsChannelBindingType] type of data to fetch
    ///
    /// # Returns
    ///
    /// [`true`] on success, [`false`] otherwise
    ///
    /// ## `data`
    /// [`glib::ByteArray`][crate::glib::ByteArray] is
    ///  filled with the binding data, or [`None`]
    #[cfg(any(feature = "v2_66", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_66")))]
    #[doc(alias = "g_tls_connection_get_channel_binding_data")]
    #[doc(alias = "get_channel_binding_data")]
    fn channel_binding_data(
        &self,
        type_: TlsChannelBindingType,
    ) -> Result<glib::ByteArray, glib::Error>;
}

impl<O: IsA<TlsConnection>> TlsConnectionExtManual for O {
    #[cfg(any(feature = "v2_66", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_66")))]
    fn channel_binding_data(
        &self,
        type_: TlsChannelBindingType,
    ) -> Result<glib::ByteArray, glib::Error> {
        unsafe {
            let data = ptr::null_mut();
            let mut error = ptr::null_mut();
            let _ = ffi::g_tls_connection_get_channel_binding_data(
                self.as_ptr() as *mut _,
                type_.into_glib(),
                data,
                &mut error,
            );
            if error.is_null() {
                Ok(from_glib_none(data))
            } else {
                Err(from_glib_full(error))
            }
        }
    }
}