using System;
using System.Runtime.InteropServices;

namespace Tizen.Multimedia
{
    internal static partial class Interop
    {
        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        internal delegate void SoundStreamFocusStateChangedCallback(IntPtr streamInfo, AudioStreamFocusOptions focusMask, AudioStreamFocusState focusState, int reason, int audioStreamBehavior, string extraInfo, IntPtr userData);

        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        internal delegate void SoundStreamFocusStateWatchCallback(int id, AudioStreamFocusOptions focusMask, AudioStreamFocusState focusState, AudioStreamFocusChangedReason reason, string extraInfo, IntPtr userData);

        internal static partial class AudioStreamPolicy
        {
            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_create_stream_information")]
            internal static extern int CreateStreamInformation(int streamType, SoundStreamFocusStateChangedCallback callback, IntPtr userData, out IntPtr streamInfo);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_destroy_stream_information")]
            internal static extern int DestroyStreamInformation(IntPtr streamInfo);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_add_device_for_stream_routing")]
            internal static extern int AddDeviceForStreamRouting(IntPtr streamInfo, IntPtr device);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_remove_device_for_stream_routing")]
            internal static extern int RemoveDeviceForStreamRouting(IntPtr streamInfo, IntPtr device);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_apply_stream_routing")]
            internal static extern int ApplyStreamRouting(IntPtr streamInfo);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_acquire_focus")]
            internal static extern int AcquireFocus(IntPtr streamInfo, AudioStreamFocusOptions focusMask, int audioStreamBehavior, string extraInfo);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_release_focus")]
            internal static extern int ReleaseFocus(IntPtr streamInfo, AudioStreamFocusOptions focusMask, int audioStreamBehavior, string extraInfo);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_get_focus_state")]
            internal static extern int GetFocusState(IntPtr streaInfo, out AudioStreamFocusState stateForPlayback, out AudioStreamFocusState stateForRecording);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_set_focus_reacquisition")]
            internal static extern int SetFocusReacquisition(IntPtr streamInfo, bool enable);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_get_focus_reacquisition")]
            internal static extern int GetFocusReacquisition(IntPtr streamInfo, out bool enabled);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_get_sound_type")]
            internal static extern int GetSoundType(IntPtr streamInfo, out AudioVolumeType soundType);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_add_focus_state_watch_cb")]
            internal static extern int AddFocusStateWatchCallback(AudioStreamFocusOptions focusMask, SoundStreamFocusStateWatchCallback callback, IntPtr userData, out int id);

            [DllImportAttribute(Libraries.SoundManager, EntryPoint = "sound_manager_remove_focus_state_watch_cb")]
            internal static extern int RemoveFocusStateWatchCallback(int id);
        }
    }
}