// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
// DO NOT EDIT

use crate::RTSPFilterResult;
use crate::RTSPSession;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::mem::transmute;

glib::wrapper! {
    /// An object that keeps track of the active sessions. This object is usually
    /// attached to a [`RTSPServer`][crate::RTSPServer] object to manage the sessions in that server.
    ///
    /// # Implements
    ///
    /// [`RTSPSessionPoolExt`][trait@crate::prelude::RTSPSessionPoolExt], [`trait@glib::ObjectExt`], [`RTSPSessionPoolExtManual`][trait@crate::prelude::RTSPSessionPoolExtManual]
    #[doc(alias = "GstRTSPSessionPool")]
    pub struct RTSPSessionPool(Object<ffi::GstRTSPSessionPool, ffi::GstRTSPSessionPoolClass>);

    match fn {
        type_ => || ffi::gst_rtsp_session_pool_get_type(),
    }
}

impl RTSPSessionPool {
    /// Create a new [`RTSPSessionPool`][crate::RTSPSessionPool] instance.
    ///
    /// # Returns
    ///
    /// A new [`RTSPSessionPool`][crate::RTSPSessionPool]. `g_object_unref()` after
    /// usage.
    #[doc(alias = "gst_rtsp_session_pool_new")]
    pub fn new() -> RTSPSessionPool {
        assert_initialized_main_thread!();
        unsafe { from_glib_full(ffi::gst_rtsp_session_pool_new()) }
    }
}

impl Default for RTSPSessionPool {
    fn default() -> Self {
        Self::new()
    }
}

unsafe impl Send for RTSPSessionPool {}
unsafe impl Sync for RTSPSessionPool {}

pub const NONE_RTSP_SESSION_POOL: Option<&RTSPSessionPool> = None;

/// Trait containing all [`struct@RTSPSessionPool`] methods.
///
/// # Implementors
///
/// [`RTSPSessionPool`][struct@crate::RTSPSessionPool]
pub trait RTSPSessionPoolExt: 'static {
    /// Inspect all the sessions in `self` and remove the sessions that are inactive
    /// for more than their timeout.
    ///
    /// # Returns
    ///
    /// the amount of sessions that got removed.
    #[doc(alias = "gst_rtsp_session_pool_cleanup")]
    fn cleanup(&self) -> u32;

    /// Create a new [`RTSPSession`][crate::RTSPSession] object in `self`.
    ///
    /// # Returns
    ///
    /// a new [`RTSPSession`][crate::RTSPSession].
    #[doc(alias = "gst_rtsp_session_pool_create")]
    fn create(&self) -> Result<RTSPSession, glib::BoolError>;

    /// Call `func` for each session in `self`. The result value of `func` determines
    /// what happens to the session. `func` will be called with the session pool
    /// locked so no further actions on `self` can be performed from `func`.
    ///
    /// If `func` returns [`RTSPFilterResult::Remove`][crate::RTSPFilterResult::Remove], the session will be set to the
    /// expired state and removed from `self`.
    ///
    /// If `func` returns [`RTSPFilterResult::Keep`][crate::RTSPFilterResult::Keep], the session will remain in `self`.
    ///
    /// If `func` returns [`RTSPFilterResult::Ref`][crate::RTSPFilterResult::Ref], the session will remain in `self` but
    /// will also be added with an additional ref to the result GList of this
    /// function..
    ///
    /// When `func` is [`None`], [`RTSPFilterResult::Ref`][crate::RTSPFilterResult::Ref] will be assumed for all sessions.
    /// ## `func`
    /// a callback
    ///
    /// # Returns
    ///
    /// a GList with all
    /// sessions for which `func` returned [`RTSPFilterResult::Ref`][crate::RTSPFilterResult::Ref]. After usage, each
    /// element in the GList should be unreffed before the list is freed.
    #[doc(alias = "gst_rtsp_session_pool_filter")]
    fn filter(
        &self,
        func: Option<&mut dyn (FnMut(&RTSPSessionPool, &RTSPSession) -> RTSPFilterResult)>,
    ) -> Vec<RTSPSession>;

    /// Find the session with `sessionid` in `self`. The access time of the session
    /// will be updated with [`RTSPSessionExt::touch()`][crate::prelude::RTSPSessionExt::touch()].
    /// ## `sessionid`
    /// the session id
    ///
    /// # Returns
    ///
    /// the [`RTSPSession`][crate::RTSPSession] with `sessionid`
    /// or [`None`] when the session did not exist. `g_object_unref()` after usage.
    #[doc(alias = "gst_rtsp_session_pool_find")]
    fn find(&self, sessionid: &str) -> Option<RTSPSession>;

    /// Get the maximum allowed number of sessions in `self`. 0 means an unlimited
    /// amount of sessions.
    ///
    /// # Returns
    ///
    /// the maximum allowed number of sessions.
    #[doc(alias = "gst_rtsp_session_pool_get_max_sessions")]
    #[doc(alias = "get_max_sessions")]
    fn max_sessions(&self) -> u32;

    /// Get the amount of active sessions in `self`.
    ///
    /// # Returns
    ///
    /// the amount of active sessions in `self`.
    #[doc(alias = "gst_rtsp_session_pool_get_n_sessions")]
    #[doc(alias = "get_n_sessions")]
    fn n_sessions(&self) -> u32;

    /// Remove `sess` from `self`, releasing the ref that the pool has on `sess`.
    /// ## `sess`
    /// a [`RTSPSession`][crate::RTSPSession]
    ///
    /// # Returns
    ///
    /// [`true`] if the session was found and removed.
    #[doc(alias = "gst_rtsp_session_pool_remove")]
    fn remove<P: IsA<RTSPSession>>(&self, sess: &P) -> Result<(), glib::error::BoolError>;

    /// Configure the maximum allowed number of sessions in `self` to `max`.
    /// A value of 0 means an unlimited amount of sessions.
    /// ## `max`
    /// the maximum number of sessions
    #[doc(alias = "gst_rtsp_session_pool_set_max_sessions")]
    fn set_max_sessions(&self, max: u32);

    #[doc(alias = "session-removed")]
    fn connect_session_removed<F: Fn(&Self, &RTSPSession) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    #[doc(alias = "max-sessions")]
    fn connect_max_sessions_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;
}

impl<O: IsA<RTSPSessionPool>> RTSPSessionPoolExt for O {
    fn cleanup(&self) -> u32 {
        unsafe { ffi::gst_rtsp_session_pool_cleanup(self.as_ref().to_glib_none().0) }
    }

    fn create(&self) -> Result<RTSPSession, glib::BoolError> {
        unsafe {
            Option::<_>::from_glib_full(ffi::gst_rtsp_session_pool_create(
                self.as_ref().to_glib_none().0,
            ))
            .ok_or_else(|| glib::bool_error!("Failed to create session pool"))
        }
    }

    fn filter(
        &self,
        func: Option<&mut dyn (FnMut(&RTSPSessionPool, &RTSPSession) -> RTSPFilterResult)>,
    ) -> Vec<RTSPSession> {
        let func_data: Option<
            &mut dyn (FnMut(&RTSPSessionPool, &RTSPSession) -> RTSPFilterResult),
        > = func;
        unsafe extern "C" fn func_func(
            pool: *mut ffi::GstRTSPSessionPool,
            session: *mut ffi::GstRTSPSession,
            user_data: glib::ffi::gpointer,
        ) -> ffi::GstRTSPFilterResult {
            let pool = from_glib_borrow(pool);
            let session = from_glib_borrow(session);
            let callback: *mut Option<
                &mut dyn (FnMut(&RTSPSessionPool, &RTSPSession) -> RTSPFilterResult),
            > = user_data as *const _ as usize
                as *mut Option<
                    &mut dyn (FnMut(&RTSPSessionPool, &RTSPSession) -> RTSPFilterResult),
                >;
            let res = if let Some(ref mut callback) = *callback {
                callback(&pool, &session)
            } else {
                panic!("cannot get closure...")
            };
            res.into_glib()
        }
        let func = if func_data.is_some() {
            Some(func_func as _)
        } else {
            None
        };
        let super_callback0: &Option<
            &mut dyn (FnMut(&RTSPSessionPool, &RTSPSession) -> RTSPFilterResult),
        > = &func_data;
        unsafe {
            FromGlibPtrContainer::from_glib_full(ffi::gst_rtsp_session_pool_filter(
                self.as_ref().to_glib_none().0,
                func,
                super_callback0 as *const _ as usize as *mut _,
            ))
        }
    }

    fn find(&self, sessionid: &str) -> Option<RTSPSession> {
        unsafe {
            from_glib_full(ffi::gst_rtsp_session_pool_find(
                self.as_ref().to_glib_none().0,
                sessionid.to_glib_none().0,
            ))
        }
    }

    fn max_sessions(&self) -> u32 {
        unsafe { ffi::gst_rtsp_session_pool_get_max_sessions(self.as_ref().to_glib_none().0) }
    }

    fn n_sessions(&self) -> u32 {
        unsafe { ffi::gst_rtsp_session_pool_get_n_sessions(self.as_ref().to_glib_none().0) }
    }

    fn remove<P: IsA<RTSPSession>>(&self, sess: &P) -> Result<(), glib::error::BoolError> {
        unsafe {
            glib::result_from_gboolean!(
                ffi::gst_rtsp_session_pool_remove(
                    self.as_ref().to_glib_none().0,
                    sess.as_ref().to_glib_none().0
                ),
                "Failed to remove session from pool"
            )
        }
    }

    fn set_max_sessions(&self, max: u32) {
        unsafe {
            ffi::gst_rtsp_session_pool_set_max_sessions(self.as_ref().to_glib_none().0, max);
        }
    }

    #[doc(alias = "session-removed")]
    fn connect_session_removed<F: Fn(&Self, &RTSPSession) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn session_removed_trampoline<
            P: IsA<RTSPSessionPool>,
            F: Fn(&P, &RTSPSession) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstRTSPSessionPool,
            object: *mut ffi::GstRTSPSession,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                &RTSPSessionPool::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(object),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"session-removed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    session_removed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "max-sessions")]
    fn connect_max_sessions_notify<F: Fn(&Self) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_sessions_trampoline<
            P: IsA<RTSPSessionPool>,
            F: Fn(&P) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstRTSPSessionPool,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&RTSPSessionPool::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-sessions\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_max_sessions_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}