using CLMGRLib;

namespace TeamsNetphoneLink.Netphone
{
    public class ClientSdkEventArgs : EventArgs
    {
        public CLMgrMessage Msg;
        public int Param;

        public ClientSdkEventArgs(CLMgrMessage msg, int param)
        {
            Msg = msg;
            Param = param;
        }
    }

    public delegate void LineManagerMessageHandler(ClientSdkEventArgs e);

    public class ClientSdkEventSink
    {
        private ClientLineMgrClass ConnectedLineManager;
        private IClientLineMgrEventsPub_PubOnLineMgrNotificationEventHandler EventHandler;
        private LineManagerMessageHandler LineManagerMessageDelegateOfForm;

        public ClientSdkEventSink()
        {
            EventHandler = new IClientLineMgrEventsPub_PubOnLineMgrNotificationEventHandler(clmgr_EventSink);
        }

        public void Connect(ClientLineMgrClass lineManager, LineManagerMessageHandler lineManagerMessageDelegateOfForm)
        {
            ConnectedLineManager = lineManager;
            LineManagerMessageDelegateOfForm = lineManagerMessageDelegateOfForm;

            //add eventhandler for the PubOnlineMgrNotification Events
            ConnectedLineManager.PubOnLineMgrNotification += EventHandler;
        }

        public void Disconnect()
        {
            //remove eventhandler for the PubOnlineMgrNotification Events
            ConnectedLineManager.PubOnLineMgrNotification -= EventHandler;
            ConnectedLineManager = null;
            LineManagerMessageDelegateOfForm = null;
        }

        private void clmgr_EventSink(int msg, int param)
        {
            //this method receives the COM events from the client line manger
            if ((LineManagerMessageDelegateOfForm != null))
            {
                LineManagerMessageDelegateOfForm(new ClientSdkEventArgs((CLMgrMessage)msg, param));
            }
        }
    }

    public enum CLMgrMessage
    {
        CLMgrLineStateChangedMessage = 0,      //state of at least one line has changed
        CLMgrLineSelectionChangedMessage = 1,  //line in focus has changed
        CLMgrLineDetailsChangedMessage = 2,    //details of at least one line have changed
        CLMgrCallDetailsMessage = 4,           //details of last call are available, post mortem for logging purpose
        CLMgrServerDownMessage = 5,            //server goes down, keep line manager, wait for ServerUp message
        CLMgrServerUpMessage = 6,              //server is up again, keep interfaces to line manger
        CLMgrWaveDeviceChanged = 7,            //speaker / micro has been switched on / off
        CLMgrGroupCallNotificationMessage = 8, //notification about group call
        CLMgrNumberOfLinesChangedMessage = 10, //the number of lines has changed
        CLMgrClientShutDownRequest = 11,       //Client Line Manager requests client to shutdown and release all interfaces
        CLMgrLineStateChangedMessageEx = 28,   //state of certain line has changed, lParam: LOWORD: line index of line that changed its state (starting with 0) HIWORD: new state of this line
        CLMgrSIPRegistrationStateChanged = 30, //registration state of SIP account has changed
                                               //lParam: LOBYTE: Account index
                                               //        HIBYTE: new state
        CLMgrWaveFilePlayed = 31,              //wave file playback finished
                                               //lParam: line index;
                                               //if -1, the message is related to a LineMgr function PlaySoundFile or PlayToRtp
                                               //if >=0 the message is related to a line function PlaySoundFile of line with this index
        PubCLMgrFirstDataReceived = 32         //first RTP data received on line, might be silence
                                               //lParam: line index;
    }

    public enum LineState
    {
        Inactive = 0,                        //line is inactive
        HookOffInternal = 1,                 //off hook, internal dialtone
        HookOffExternal = 2,                 //off hook, external dialtone
        Ringing = 3,                         //incoming call, ringing
        Dialing = 4,                         //outgoing call, we are dialing, no sound
        Alerting = 5,                        //outgoing call, alerting = ringing on destination
        Knocking = 6,                        //outgoing call, knocking = second call ringing on destination
        Busy = 7,                            //outgoing call, destination is busy
        Active = 8,                          //incoming / outgoing call, logical and physical connection is established
        OnHold = 9,                          //incoming / outgoing call, logical connection is established, destination gets music on hold
        ConferenceActive = 10,               //incoming / outgoing conference, logical and physical connection is established
        ConferenceOnHold = 11,               //incoming / outgoing conference, logical connection is established, not physcically connected
        Terminated = 12,                     //incoming / outgoing connection / call has been disconnected
        Transferring = 13,                   //special LSOnHold, call is awaiting to be transferred, peer gets special music on hold
        Disabled = 14                        //special LSInactive: wrap up time
    }

    public enum DisconnectReason
    {
        Normal = 0,
        Busy = 1,
        Rejected = 2,
        Cancelled = 3,
        Transferred = 4,
        JoinedConference = 5,
        NoAnswer = 6,
        TooLate = 7,
        DirectCallImpossible = 8,
        WrongNumber = 9,
        Unreachable = 10,
        CallDiverted = 11,
        CallRoutingFailed = 12,
        PermissionDenied = 13,
        NetworkCongestion = 14,
        NoChannelAvailable = 15,
        NumberChanged = 16,
        IncompatibleDestination = 17
    }
}