//  building block.js
//
//  Script Type: Entity Script
//  Copyright 2016 High Fidelity, Inc.
//
//  Snapping building blocks
//  
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html

/*global MyAvatar, Entities, AnimationCache, SoundCache, Scene, Camera, Overlays, HMD, AvatarList, AvatarManager, Controller, UndoStack, Window, Account, GlobalServices, Script, ScriptDiscoveryService, LODManager, Menu, Vec3, Quat, AudioDevice, Paths, Clipboard, Settings, XMLHttpRequest, randFloat, randInt */

(function() {

    Script.include("../libraries/utils.js");
	
	var SNAP_RELATIVE = true; // snap relative to the position of a parent/root so rotated children snap according to parent position. Else global or absolute space.
	var SNAP_ANGLE = 45; // Snapping for rotation allowed at increments of 45 degrees
	var SNAP_UNIT = {x:0.2, y:0.2, z:0.2};//2.0, 1.5, 1.5; // xyz parameters for snap increment

	var baserot;
	var basepos;
	
	function rotToDeg(rotation) {	
		var angle = Math.round((Quat.safeEulerAngles(rotation).y + 360.0) % 360.0);
		return angle;
	}	
	
    function BlockSnap() {
    }
	
    BlockSnap.prototype = {
        preload: function(entityID) {
            this.entityID = entityID;
        },
		clickReleaseOnEntity: function(entityID, mouseEvent) {
            if (!mouseEvent.isLeftButton) {
                return;
            }
			print("Click up");
			var userData = Entities.getEntityProperties(this.entityID, ["userData"]).userData;	
			//var configDataOject = JSON.parse(userData);
			
			var copyEnt = Entities.getEntityProperties(this.entityID, ["rotation","position"]);
			var jsonEnt = JSON.stringify(copyEnt);
			var data = JSON.parse(jsonEnt);	

			baserot = rotToDeg(data.rotation);
			basepos = data.position;			
			
			basepos.x = SNAP_UNIT.x * Math.round (data.position.x/SNAP_UNIT.x);
			basepos.y = SNAP_UNIT.y * Math.round (data.position.x/SNAP_UNIT.y);
			basepos.z = SNAP_UNIT.z * Math.round (data.position.x/SNAP_UNIT.z);
			
		
			// Get my current rotation
			baserot.y = SNAP_ANGLE * Math.round(data.rotation.y/SNAP_ANGLE);
			
			// Edit & write new properties to entityIDvar 
			newProperties = {position:basepos, rotation:baserot};
			Entities.editEntity(this.entityID, newProperties);
        },
        releaseGrab: function() {			
			
			var userData = Entities.getEntityProperties(this.entityID, ["userData"]).userData;	
			//var configDataOject = JSON.parse(userData);
			
			var copyEnt = Entities.getEntityProperties(this.entityID, ["rotation","position"]);
			var jsonEnt = JSON.stringify(copyEnt);
			var data = JSON.parse(jsonEnt);	

			baserot = rotToDeg(data.rotation);
			basepos = data.position;			
			
			basepos.x = SNAP_UNIT.x * Math.round (basepos.x/SNAP_UNIT.x);
			basepos.y = SNAP_UNIT.y * Math.round (basepos.x/SNAP_UNIT.y);
			basepos.z = SNAP_UNIT.z * Math.round (basepos.x/SNAP_UNIT.z);
			
		
			// Get my current rotation
			baserot.y = SNAP_ANGLE * Math.round(baserot.y/SNAP_ANGLE);
			
			// Edit & write new properties to entityIDvar 
			newProperties = {position:basepos, rotation:baserot};
			Entities.editEntity(this.entityID, newProperties);
			
        },

    };

    return new BlockSnap();

});