// prompt.js 

// copyright (c) 2009-2011 Mark Butler
// This program is free software; you can redistribute it 
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation;
// either version 2 of the License, or (at your option) any later version. 

function Prompt(GameRules, MoveRules, CombatRules, Force, Terrain) {

	var promptMessage;
	var gameRules;
	var moveRules;
	var combatRules;
	var force;
	var terrain;
	
	this.gameRules = GameRules;
	this.moveRules = MoveRules;
	this.combatRules = CombatRules;
	this.force = Force;
	this.terrain = Terrain;
}

Prompt.prototype.getPrompt = function( eventType, id, hexagon ){

  this.promptMessage = "";
  var unitName;
  var status;

  switch( this.gameRules.mode ) {
		
     case MOVING_MODE:

      switch ( eventType ) {
      		
        case OVER_MAP_EVENT:
        
            if ( this.moveRules.anyUnitIsMoving ) {
             this.promptMessage += "click on hexagon to move into";
               if ( this.force.units[this.moveRules.movingUnitId].status == STATUS_MOVING ) {
                    
                    los = new Los();
                    los.setOrigin(this.force.getUnitHexagon(this.moveRules.movingUnitId));
                    los.setEndPoint(hexagon);
                    var range = los.getRange();

                    this.promptMessage += "<br />" + hexagon.getName();
                    this.promptMessage += "<br />range is: " + range;
                    
                    var moveCost = terrain.getTerrainMoveCost(
                        this.force.getUnitHexagon(this.moveRules.movingUnitId)
                        , hexagon
                        , this.force.units[this.moveRules.movingUnitId].maxMoveAmount 
                    );
                    //if ( (terrain.isExit(hexpartX, hexpartY) == false ) && range == 1) {
                    if ( range == 1) {
                    this.promptMessage += "<br />move cost is: " + moveCost;
                    }  
                    else
                    {
                    this.promptMessage += "<br />cannot move here";
                    }   
                }
                if ( this.force.units[this.moveRules.movingUnitId].status == STATUS_REINFORCING ) {
 
                     if ( this.force.units[this.moveRules.movingUnitId].reinforceZone 
                            == terrain.getReinforceZone(hexagon))
                    {
                        this.promptMessage += "<br />can reinforce here";
                    }
                    else
                    {    
                         this.promptMessage += "<br />cannot reinforce here";
                         this.promptMessage += "<br />blue can reinforce 0103, 0104, 0105";
                         this.promptMessage += "<br />red can reinforce 0501";

                   }
                }
            }
            else {
             this.promptMessage += "click on a unit to start moving";            
            }
            break;

        case OVER_COUNTER_EVENT:

          if ( this.force.units[id].forceId == this.force.attackingForceId )
          {
            if ( this.moveRules.anyUnitIsMoving == true ) {
                if ( this.moveRules.movingUnitId == id ) {
                    this.promptMessage += "click here to stop";
                } else {
                    this.promptMessage += "click on hexagon to move into";
                }
            }
            else 
            {
                if ( this.force.units[id].status == STATUS_READY || this.force.units[id].status == STATUS_CAN_REINFORCE ) {
                    this.promptMessage += "click on " + this.force.units[id].name + " to move";
                }
            }
          }
          else
          {
            this.promptMessage += "enemy cannot move this phase";
          }
          break;
        }
        break;
        
    case COMBAT_SETUP_MODE:

      switch ( eventType ) {		

		
        case OVER_MAP_EVENT:

            this.promptMessage += "click on attacking units to setup combat";
            this.promptMessage += "<br />click on another defender to start new attack";
          break;
       
        case OVER_COUNTER_EVENT:

            this.promptMessage += "click on defender to start new attack";
            this.promptMessage += "<br />click on attacking units to setup combat";
           

          	if ( this.force.units[id].status == STATUS_DEFENDING ) {
	            //this.promptMessage += "<br /> " + this.combatRules.getDefenderTerrainCombatEffect(this.force.units[id].combatNumber);
			if ( this.force.unitHasAttackers(id) == true ) {
				this.promptMessage += "<br /> " + this.force.unitGetAttackerList(id) + " attacking";
		      this.promptMessage += "<br />combat index: atk str - def str - tec";
			    this.promptMessage += "<br />" + this.force.getAttackerStrength(this.force.units[id].combatNumber) ;
			    this.promptMessage += " - " + this.force.getDefenderStrength(this.force.units[id].combatNumber) ;
			    this.promptMessage += " - " + this.combatRules.getDefenderTerrainCombatEffect(this.force.units[id].combatNumber);
			    var index = (this.force.getAttackerStrength(this.force.units[id].combatNumber) - this.force.getDefenderStrength(this.force.units[id].combatNumber) - this.combatRules.getDefenderTerrainCombatEffect(this.force.units[id].combatNumber));
			    if( index < 0 ) index = 0;
			    this.promptMessage += " = " + index;
		      if( index > 5 ) this.promptMessage += ", use max of 5";
		      this.promptMessage += "<br />" + this.combatRules.getCombatOddsList(this.force.units[id].combatIndex);
			}	
		}
          break;
        }
        break;

    case COMBAT_RESOLUTION_MODE:

      switch ( eventType ) {		

        case OVER_MAP_EVENT:
			if ( this.force.unitsAreDefending() == true )
			{
				this.promptMessage = "click on a defender to resolve combat";
			} else {
				this.promptMessage = "No more attacks to resolve<br />click on Next Phase button to continue";
			}
          break;

        case OVER_COUNTER_EVENT:

			if ( this.force.unitsAreDefending() == true )
			{
				this.promptMessage = "click on a defender to resolve combat";
				if ( this.force.units[id].status == STATUS_DEFENDING ) {
					this.promptMessage += "<br /> " + this.combatRules.getCombatOddsList(this.force.units[id].combatIndex);
					//this.promptMessage = this.force.units[id].name + " " + status_name[this.force.units[id].status];
					//this.promptMessage = "<BR>attacking odds are: " + combatRatio_name[this.force.units[id].combatIndex];
					//this.promptMessage += "<BR>" + this.combatRules.getCombatOddsList( this.force.units[id].combatIndex );
				}
			} else {
				this.promptMessage = "No more attacks to resolve<br />click on Next Phase button to continue";
			}
          break;
       }
       break;         

    case RETREATING_MODE:
        //this.promptMessage = "combat results: " + results_name[ this.force.units[this.moveRules.movingUnitId].combatResults ];
        this.promptMessage += "<br />click on a unit to start retreat<br />then click on hexagon to move";
        break;

    case ADVANCING_MODE:
        //this.promptMessage = "combat results: " + results_name[ this.force.units[this.moveRules.movingUnitId].combatResults  ];
        this.promptMessage += "<br />click on unit to start advance <br />then click on hexagon to move <br />or click attacker again to stop in place";
        break;

    }

   return ( this.promptMessage );
}