using System;
using Cosmos.VS.DebugEngine.Properties;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.Debugger.Interop;

namespace Cosmos.VS.DebugEngine.AD7.Impl
{
    // This class implements IDebugProgramNode2.
    // This interface represents a program that can be debugged.
    // A debug engine (DE) or a custom port supplier implements this interface to represent a program that can be debugged. 
    class AD7ProgramNode : IDebugProgramNode2
    {
        readonly Guid mProcessID;

        public AD7ProgramNode(Guid aProcessID)
        {
            mProcessID = aProcessID;
        }

        #region IDebugProgramNode2 Members

        // Gets the name and identifier of the DE running this program.
        int IDebugProgramNode2.GetEngineInfo(out string oEngineName, out Guid oEngineGuid)
        {
            oEngineName = Resources.EngineName;
            oEngineGuid = new Guid(AD7Engine.ID);

            return VSConstants.S_OK;
        }

        // Gets the system process identifier for the process hosting a program.
        int IDebugProgramNode2.GetHostPid(AD_PROCESS_ID[] pHostProcessId)
        {
            // Return the process id of the debugged process
            pHostProcessId[0].ProcessIdType = (uint)enum_AD_PROCESS_ID.AD_PROCESS_ID_GUID;
            pHostProcessId[0].guidProcessId = mProcessID;

            return VSConstants.S_OK;
        }

        // Gets the name of the process hosting a program.
        int IDebugProgramNode2.GetHostName(enum_GETHOSTNAME_TYPE dwHostNameType, out string processName)
        {
            // Since we are using default transport and don't want to customize the process name, this method doesn't need
            // to be implemented.
            processName = null;
            return VSConstants.E_NOTIMPL;
        }

        // Gets the name of a program.
        int IDebugProgramNode2.GetProgramName(out string programName)
        {
            // Since we are using default transport and don't want to customize the process name, this method doesn't need
            // to be implemented.
            programName = null;
            return VSConstants.E_NOTIMPL;
        }

        #endregion

        #region Deprecated interface methods
        // These methods are not called by the Visual Studio debugger, so they don't need to be implemented

        int IDebugProgramNode2.Attach_V7(IDebugProgram2 pMDMProgram, IDebugEventCallback2 pCallback, uint dwReason)
        {
            System.Diagnostics.Debug.Fail("This function is not called by the debugger");
            return VSConstants.E_NOTIMPL;
        }

        int IDebugProgramNode2.DetachDebugger_V7()
        {
            System.Diagnostics.Debug.Fail("This function is not called by the debugger");
            return VSConstants.E_NOTIMPL;
        }

        int IDebugProgramNode2.GetHostMachineName_V7(out string hostMachineName)
        {
            System.Diagnostics.Debug.Fail("This function is not called by the debugger");

            hostMachineName = null;
            return VSConstants.E_NOTIMPL;
        }

        #endregion
    }

}