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// 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::Caps;
use crate::Element;
use crate::Object;
use crate::Structure;
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! {
    /// [`Device`][crate::Device] are objects representing a device, they contain
    /// relevant metadata about the device, such as its class and the [`Caps`][crate::Caps]
    /// representing the media types it can produce or handle.
    ///
    /// [`Device`][crate::Device] are created by [`DeviceProvider`][crate::DeviceProvider] objects which can be
    /// aggregated by [`DeviceMonitor`][crate::DeviceMonitor] objects.
    ///
    /// This is an Abstract Base Class, you cannot instantiate it.
    ///
    /// # Implements
    ///
    /// [`DeviceExt`][trait@crate::prelude::DeviceExt], [`GstObjectExt`][trait@crate::prelude::GstObjectExt], [`trait@glib::ObjectExt`]
    #[doc(alias = "GstDevice")]
    pub struct Device(Object<ffi::GstDevice, ffi::GstDeviceClass>) @extends Object;

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

impl Device {
    pub const NONE: Option<&'static Device> = None;
}

unsafe impl Send for Device {}
unsafe impl Sync for Device {}

/// Trait containing all [`struct@Device`] methods.
///
/// # Implementors
///
/// [`Device`][struct@crate::Device]
pub trait DeviceExt: 'static {
    /// Creates the element with all of the required parameters set to use
    /// this device.
    /// ## `name`
    /// name of new element, or [`None`] to automatically
    /// create a unique name.
    ///
    /// # Returns
    ///
    /// a new [`Element`][crate::Element] configured to use
    /// this device
    #[doc(alias = "gst_device_create_element")]
    fn create_element(&self, name: Option<&str>) -> Result<Element, glib::BoolError>;

    /// Getter for the [`Caps`][crate::Caps] that this device supports.
    ///
    /// # Returns
    ///
    /// The [`Caps`][crate::Caps] supported by this device. Unref with
    /// `gst_caps_unref()` when done.
    #[doc(alias = "gst_device_get_caps")]
    #[doc(alias = "get_caps")]
    fn caps(&self) -> Option<Caps>;

    /// Gets the "class" of a device. This is a "/" separated list of
    /// classes that represent this device. They are a subset of the
    /// classes of the [`DeviceProvider`][crate::DeviceProvider] that produced this device.
    ///
    /// # Returns
    ///
    /// The device class. Free with `g_free()` after use.
    #[doc(alias = "gst_device_get_device_class")]
    #[doc(alias = "get_device_class")]
    fn device_class(&self) -> glib::GString;

    /// Gets the user-friendly name of the device.
    ///
    /// # Returns
    ///
    /// The device name. Free with `g_free()` after use.
    #[doc(alias = "gst_device_get_display_name")]
    #[doc(alias = "get_display_name")]
    fn display_name(&self) -> glib::GString;

    /// Gets the extra properties of a device.
    ///
    /// # Returns
    ///
    /// The extra properties or [`None`] when there are none.
    ///  Free with `gst_structure_free()` after use.
    #[doc(alias = "gst_device_get_properties")]
    #[doc(alias = "get_properties")]
    fn properties(&self) -> Option<Structure>;

    /// Check if `self` matches all of the given classes
    /// ## `classes`
    /// a "/"-separated list of device classes to match, only match if
    ///  all classes are matched
    ///
    /// # Returns
    ///
    /// [`true`] if `self` matches.
    #[doc(alias = "gst_device_has_classes")]
    fn has_classes(&self, classes: &str) -> bool;

    /// Check if `factory` matches all of the given classes
    /// ## `classes`
    /// a [`None`] terminated array of classes
    ///  to match, only match if all classes are matched
    ///
    /// # Returns
    ///
    /// [`true`] if `self` matches.
    #[doc(alias = "gst_device_has_classesv")]
    fn has_classesv(&self, classes: &[&str]) -> bool;

    /// Tries to reconfigure an existing element to use the device. If this
    /// function fails, then one must destroy the element and create a new one
    /// using [`create_element()`][Self::create_element()].
    ///
    /// Note: This should only be implemented for elements can change their
    /// device in the PLAYING state.
    /// ## `element`
    /// a [`Element`][crate::Element]
    ///
    /// # Returns
    ///
    /// [`true`] if the element could be reconfigured to use this device,
    /// [`false`] otherwise.
    #[doc(alias = "gst_device_reconfigure_element")]
    fn reconfigure_element(
        &self,
        element: &impl IsA<Element>,
    ) -> Result<(), glib::error::BoolError>;

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

impl<O: IsA<Device>> DeviceExt for O {
    fn create_element(&self, name: Option<&str>) -> Result<Element, glib::BoolError> {
        unsafe {
            Option::<_>::from_glib_none(ffi::gst_device_create_element(
                self.as_ref().to_glib_none().0,
                name.to_glib_none().0,
            ))
            .ok_or_else(|| glib::bool_error!("Failed to create element for device"))
        }
    }

    fn caps(&self) -> Option<Caps> {
        unsafe { from_glib_full(ffi::gst_device_get_caps(self.as_ref().to_glib_none().0)) }
    }

    fn device_class(&self) -> glib::GString {
        unsafe {
            from_glib_full(ffi::gst_device_get_device_class(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn display_name(&self) -> glib::GString {
        unsafe {
            from_glib_full(ffi::gst_device_get_display_name(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn properties(&self) -> Option<Structure> {
        unsafe {
            from_glib_full(ffi::gst_device_get_properties(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn has_classes(&self, classes: &str) -> bool {
        unsafe {
            from_glib(ffi::gst_device_has_classes(
                self.as_ref().to_glib_none().0,
                classes.to_glib_none().0,
            ))
        }
    }

    fn has_classesv(&self, classes: &[&str]) -> bool {
        unsafe {
            from_glib(ffi::gst_device_has_classesv(
                self.as_ref().to_glib_none().0,
                classes.to_glib_none().0,
            ))
        }
    }

    fn reconfigure_element(
        &self,
        element: &impl IsA<Element>,
    ) -> Result<(), glib::error::BoolError> {
        unsafe {
            glib::result_from_gboolean!(
                ffi::gst_device_reconfigure_element(
                    self.as_ref().to_glib_none().0,
                    element.as_ref().to_glib_none().0
                ),
                "Failed to reconfigure the element to use this device"
            )
        }
    }

    fn connect_removed<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn removed_trampoline<
            P: IsA<Device>,
            F: Fn(&P) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstDevice,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"removed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    removed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}