/********************************************************
   Mosel User Guide Example Problems
   ================================= 

   file ugcompfrmem.cs
   ```````````````````
   Retrieve model output via callback-style functionality.
   
   (c) 2013 Fair Isaac Corporation
       author: S.Heipcke, Mar. 2013 
********************************************************/


using System;
using System.IO;
using Mosel;


namespace ugcompfrmem.cs {

  public class ugcompfrmem {
    /// <summary>
    /// String containing the model
    /// </summary> const string modelSource= "model Burglar\n"+ "uses 'mmxprs'\n"+ "declarations\n"+ " WTMAX = 102 ! Maximum weight allowed\n"+ " ITEMS = 1..8 ! Index range for items\n"+ " VALUE: array(ITEMS) of real ! Value of items\n"+ " WEIGHT: array(ITEMS) of real ! Weight of items\n"+ " take: array(ITEMS) of mpvar ! 1 if we take item i; 0 otherwise\n"+ "end-declarations\n"+ "VALUE :: [15, 100, 90, 60, 40, 15, 10, 1]\n"+ "WEIGHT:: [ 2, 20, 20, 30, 40, 30, 60, 10]\n"+ "! Objective: maximize total value\n"+ "MaxVal:= sum(i in ITEMS) VALUE(i)*take(i)\n"+ "! Weight restriction\n"+ "sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX\n"+ "! All variables are 0/1\n"+ "forall(i in ITEMS) take(i) is_binary\n"+ "maximize(MaxVal) ! Solve the problem\n"+ "! Print out the solution\n"+ "writeln(\"Solution:\\n Objective: \", getobjval)\n"+ "forall(i in ITEMS) writeln(' take(', i, '): ', getsol(take(i)))\n"+ "end-model"; /// <summary>
    /// Main entry point for the application
    /// </summary>
    [STAThread]
    static void Main(string[] args) {
      // Initialize Mosel
      XPRM mosel = XPRM.Init();

      // Compile the Mosel model to a physical file
      FileStream file= new FileStream("burglar2.bim", FileMode.Create,  
        FileAccess.Write);
      mosel.Compile("", new StringReader(modelSource), file); 
      file.Close();

      // Load the Mosel model
      XPRMModel model = mosel.LoadModel("burglar2.bim");

// Alternative version: compile+load without writing the BIM
//      XPRMModel model = mosel.CompileAndLoad(new StringReader(modelSource));
          
      // Run the model
      model.Run();
    }
  }

}