using System;
using Microsoft.BizTalk.BaseFunctoids;
using System.Reflection;

namespace Microsoft.Samples.BizTalk.CustomFunctoid
{
    /// <summary>
    /// Performs a string concatenation through assembly referenced function. Assembly must be deployed with the BizTalk solution.
    /// </summary>
    public class CustomStringConcatFunctoid : BaseFunctoid
    {
        public CustomStringConcatFunctoid()
            : base()
        {
            //ID for this functoid
            this.ID = 6001;

            // Resource assembly must be ProjectName.ResourceName if building with VS.Net
            SetupResourceAssembly("Microsoft.Samples.BizTalk.CustomFunctoid.CustomFunctoidResources", Assembly.GetExecutingAssembly());

            // Pass the resource ID names for functoid name, tooltip
            // description and the 16x16 bitmap for the Map palette
            SetName("IDS_CUSTOMSTRINGCONCATFUNCTOID_NAME");
            SetTooltip("IDS_CUSTOMSTRINGCONCATFUNCTOID_TOOLTIP");
            SetDescription("IDS_CUSTOMSTRINGCONCATFUNCTOID_DESCRIPTION");
            SetBitmap("IDB_CUSTOMSTRINGCONCATFUNCTOID_BITMAP");

            // Put this string handling function under the String 
            // Functoid tab in the Visual Studio toolbox for functoids
            this.Category = FunctoidCategory.String;

            // 2 required parameters, no optional parameters
            this.SetMinParams(2);
            this.SetMaxParams(2);

            // Functoid accepts two inputs
            AddInputConnectionType(ConnectionType.AllExceptRecord);
            AddInputConnectionType(ConnectionType.AllExceptRecord);

            // Set the output connection type
            this.OutputConnectionType = ConnectionType.AllExceptRecord;

            // Set the function name that needs to be called
            // when this functoid is invoked.  The resulting assembly
            // must be present in the Global Assembly Cache
            // to ensure its availability.
            SetExternalFunctionName(GetType().Assembly.FullName, "Microsoft.Samples.BizTalk.CustomFunctoid.CustomStringConcatFunctoid", "ConCatStrings");
        }

        // This function is executed by BizTalk to do the concatenation
        public string ConCatStrings(string val1, string val2)
        {
            return val2 + val1;
        }
    }
}