package edu.gac.max.gened;

public class TestClient {

  // An example of how this program would be used (should be one line):
  //
  //  java edu.gac.max.gened.TestClient rmi://kilpinen.mcs.gac.edu/max-gened
  //    BD M1 W1 F1 M2 W2 F2 T3 R3
  //
  // This would ask for courses satisfying area B and/or area D and avoiding
  // 1st period MWF, 2nd period MWF, and 3rd period TR.  Also, it indicates
  // that the server is on kilpinen.mcs.gac.edu, bound to the name max-gened.

  // Limitation: The way the command line arguments are parsed,
  //  only single character geneds can be handled (no LD or GN).

  public static void main(String[] commandLineArgs){
    if(commandLineArgs.length < 2){
      System.err.println
        ("Usage: java edu.gac.max.gened.TestClient serverURL geneds"
         + " conflict ...");
      System.exit(1);
    }
    String[] geneds = new String[commandLineArgs[1].length()];
    for(int i = 0; i < commandLineArgs[1].length(); i++){
      geneds[i] = commandLineArgs[1].substring(i, i+1);
    }
    Conflict[] conflicts = new Conflict[commandLineArgs.length - 2];
    for(int i = 2; i < commandLineArgs.length; i++){
      conflicts[i-2] = new Conflict(commandLineArgs[i].charAt(0),
                                    commandLineArgs[i].charAt(1));
    }
    if (System.getSecurityManager() == null) { 
      System.setSecurityManager(new java.rmi.RMISecurityManager()); 
    }
    try{
      Server s = (Server) java.rmi.Naming.lookup(commandLineArgs[0]);
      Course[] courses = s.satisfyAnyAndAvoid(geneds, conflicts);
      for(int i = 0; i < courses.length; i++){
        Course c = courses[i];
        System.out.println(c.getDepartment() + c.getNumber() + c.getSection()
                           + ", " + c.getDescription()
                           + ", satisfies " + c.getGeneds()
                           + ", meets " + c.getDays() + " " + c.getPeriods());
      }
    } catch(Exception e){
      System.err.println(e);
      System.exit(1);
    }
  }
}