/********************************************************
  Xpress-BCL C# Example Problems
  ==============================

  file xbcoco1.cs
  ```````````````
  Coco Problem Phase 1.
  Initial formulation: data, variables and
  constraints fixed.

  (c) 2008-2024 Fair Isaac Corporation
      authors: S.Heipcke, D.Brett.
********************************************************/

using System;
using System.Text;
using System.IO;
using BCL;


namespace Examples
{
    public class TestCoco1
    {
        public static void Main()
        {
            XPRB.init();
            XPRBvar make11,make21,make12,make22;
            XPRBprob p = new XPRBprob("Coco1");         /* Initialize a new problem in BCL */

            /****VARIABLES****/
            make11 = p.newVar("make11"); /* Amount of prod. 1 to make at factory 1 */
            make21 = p.newVar("make21"); /* Amount of prod. 2 to make at factory 1 */
            make12 = p.newVar("make12"); /* Amount of prod. 1 to make at factory 2 */
            make22 = p.newVar("make22"); /* Amount of prod. 2 to make at factory 2 */

            /****OBJECTIVE****/
            /* Define & set objective function: maximize total profit */
            p.setObj(p.newCtr("OBJ", 50*make11 + 125*make21 + 47*make12 + 132*make22));

            /****CONSTRAINTS****/
            p.newCtr("MxMake1", make11+make21 <= 400);  /* Capacity limit at factory 1 */

            p.newCtr("MxMake2", make12+make22 <= 500);  /* Capacity limit at factory 2 */

            p.newCtr("MxSell1", make11+make12 <= 650);  /* Limit on the amount of
                                        prod. 1 to be sold */

            p.newCtr("MxSell2", make21+make22 <= 600);  /* Limit on the amount of
                                        prod. 2 to be sold */

            /****SOLVING + OUTPUT****/
            p.setSense(BCLconstant.XPRB_MAXIM);      /* Choose the sense of the optimization */
            p.lpOptimize();                 /* Solve the LP-problem */
            System.Console.WriteLine("Objective: " + p.getObjVal());   /* Get objective value */

            /* Print out the solution values for all variables */
            System.Console.WriteLine(make11.getName() + ": " + make11.getSol());
            System.Console.WriteLine(make21.getName() + ": " + make21.getSol());
            System.Console.WriteLine(make12.getName() + ": " + make12.getSol());
            System.Console.WriteLine(make22.getName() + ": " + make22.getSol());

            return;
        }

    }

}