using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using SimioAPI;
using SimioAPI.Extensions;

namespace CallMatlab
{
    class UserStepDefinition : IStepDefinition
    {
        #region IStepDefinition Members

        /// <summary>
        /// Property returning the full name for this type of step. The name should contain no spaces.
        /// </summary>
        public string Name
        {
            get { return "CallMatlab"; }
        }

        /// <summary>
        /// Property returning a short description of what the step does.
        /// </summary>
        public string Description
        {
            get { return "Call Matlab Function"; }
        }

        /// <summary>
        /// Property returning an icon to display for the step in the UI.
        /// </summary>
        public System.Drawing.Image Icon
        {
            get { return null; }
        }

        /// <summary>
        /// Property returning a unique static GUID for the step.
        /// </summary>
        public Guid UniqueID
        {
            get { return MY_ID; }
        }
        static readonly Guid MY_ID = new Guid("{6ad13417-6808-4c41-9a26-cfaf18a8d472}");

        /// <summary>
        /// Property returning the number of exits out of the step. Can return either 1 or 2.
        /// </summary>
        public int NumberOfExits
        {
            get { return 1; }
        }

        /// <summary>
        /// Method called that defines the property schema for the step.
        /// </summary>
        public void DefineSchema(IPropertyDefinitions schema)
        {
            IPropertyDefinition pd1;
            IPropertyDefinition pd2;

            pd1 = schema.AddStringProperty("FunName", string.Empty);
            pd1.DisplayName = "Func Name";
            pd1.Description = "Matlab Function Name";
            pd1.Required = true;

            pd2 = schema.AddStringProperty("FunAddress", string.Empty);
            pd2.DisplayName = "Func Address";
            pd2.Description = "Matlab Function Address";
            pd2.Required = true;
        }

        /// <summary>
        /// Method called to create a new instance of this step type to place in a process.
        /// Returns an instance of the class implementing the IStep interface.
        /// </summary>
        public IStep CreateStep(IPropertyReaders properties)
        {
            return new UserStep(properties);
        }

        #endregion
    }

    class UserStep : IStep
    {
        IPropertyReaders _props;
        IPropertyReader _FunctionNameProp;
        IPropertyReader _FolderAddressProp;

        public UserStep(IPropertyReaders properties)
        {
            _props = properties;
            _FunctionNameProp = _props.GetProperty("FunName");
            _FolderAddressProp = _props.GetProperty("FunAddress");
        }

        #region IStep Members

        /// <summary>
        /// Method called when a process token executes the step.
        /// </summary>
        public ExitType Execute(IStepExecutionContext context)
        {
            String FunctionNameStr = _FunctionNameProp.GetStringValue(context);
            String FolderAddressStr = _FolderAddressProp.GetStringValue(context);

            context.ExecutionInformation.TraceInformation(String.Format("The MATLAB Function ‘{0}’ located at ‘{1}’ is triggered.", FunctionNameStr, FolderAddressStr));
            FolderAddressStr = "cd " + "'" + FolderAddressStr + "'";

            MLApp.MLApp matlab = new MLApp.MLApp();
            matlab.Execute(FolderAddressStr);
            matlab.Execute(FunctionNameStr);

            return ExitType.FirstExit;
        }

        #endregion
    }
}