//=============================================================================
// EISLockSaveSlots.js                                                             
//=============================================================================


/*:
* 
* @author Kino
* @plugindesc Locks save slots in game so the user can't save over them.
* 
* @param Save Slot IDs
* @desc List of save IDs to lock by number.
* @default 1, 2, 4
* 
* @help 
* Version 1.00
* This plugin prevents the user from using a save slot that you specify as locked.
* via your entered numbers. You can select those slots, but you can't save over them.
* Make sure to put a comma space after entering your first number. You can also enter
* one number if you prefer.
*
//=============================================================================
//  Contact Information
//=============================================================================
*
* Contact me via twitter: EISKino, or on the rpg maker forums.
* Username on forums: Kino.
*
* Forum Link: http://forums.rpgmakerweb.com/index.php?/profile/75879-kino/
* Twitter Link: https://twitter.com/EISKino
*
* Hope this plugin helps, and enjoy!
* --Kino
*/


var KR = KR || {};
KR.Plugins = KR.Plugins || {};

(function($) {

  var parameters = PluginManager.parameters("EISLockSaveSlots");
  var saveSlotIDs = String(parameters['Save Slot IDs']);

  $.Plugins.lockSaveSlotsSetup = function () {
    'use strict';

//=============================================================================
// SaveSlotManager                                                             
//=============================================================================
    function SaveSlotManager() {

    }

    SaveSlotManager.initiliaze = function() {
      this.disabledSaveIDList = SaveSlotIDParser.parseSaveIds(saveSlotIDs);
    };

    SaveSlotManager.isInDisabledIDList = function(idNumber) {
      var list = this.disabledSaveIDList;
      for(var i = 0; i < list.length; i++) {
        if(idNumber === list[i])
          return true;
      }
      return false;
    };

//=============================================================================
// SaveSlotIDParser                                                             
//=============================================================================
    function SaveSlotIDParser() {

    }

    SaveSlotIDParser.parseSaveIds = function(saveSlotIDList) {
      var parsedIDs = saveSlotIDList.split(", ");
      parsedIDs.forEach(function(item, index) {
        parsedIDs[index] = Number(item);
      });
      return parsedIDs; 
    };

//=============================================================================
// SaveSlotManager Initialization                                                             
//=============================================================================
    SaveSlotManager.initiliaze();  

//=============================================================================
// Window_SaveFileList                                                             
//=============================================================================
    Window_SavefileList.prototype.isCurrentItemEnabled = function() {
      return (this.isSlotDisabledForSave(this.index())) ? false : true;
    };

    Window_SavefileList.prototype.drawItem = function(index) {
      var id = index + 1;
      var valid = DataManager.isThisGameFile(id);
      var info = DataManager.loadSavefileInfo(id);
      var rect = this.itemRectForText(index);
      this.resetTextColor();
      if (this._mode === 'load') {
          this.changePaintOpacity(valid);
      }
      if(this.isSlotDisabledForSave(index))
        this.drawDisabled(id, info, rect, valid);
      else {
        this.changePaintOpacity(valid);
        this.drawFileId(id, rect.x, rect.y);
        if (info) {
            this.changePaintOpacity(valid);
            this.drawContents(info, rect, valid);
            this.changePaintOpacity(true);
        }
      }
    };

    Window_SavefileList.prototype.drawDisabled = function(id, info, rect, valid) {
      this.changePaintOpacity(false);
      this.drawFileId(id, rect.x, rect.y);
      this.drawContents(info, rect, valid);
    };

    Window_SavefileList.prototype.isSlotDisabledForSave = function(index) {
      if(this.isSaveMode() && this.slotInDisabledList(index)) {
        return true;
      }
      else 
        return false;
    };

    Window_SavefileList.prototype.slotInDisabledList = function(index) {
      var saveID = index + 1;
      if(SaveSlotManager.isInDisabledIDList(saveID))
        return true;
      else
        return false;
    };

    Window_SavefileList.prototype.isSaveMode = function() {
      return (this._mode === 'save') ? true : false;
    };

  };

  $.Plugins.lockSaveSlotsSetup();

})(KR);