/*---------------------------------------------------------
 * OpenERP base_gantt
 *---------------------------------------------------------*/

openerp.base_gantt = function (openerp) {
QWeb.add_template('/base_gantt/static/src/xml/base_gantt.xml');
openerp.base.views.add('gantt', 'openerp.base_gantt.GanttView');
openerp.base_gantt.GanttView = openerp.base.Controller.extend({

init: function(view_manager, session, element_id, dataset, view_id) {
    
        this._super(session, element_id);
        this.view_manager = view_manager;
        this.dataset = dataset;
        this.model = dataset.model;
        this.view_id = view_id;
        this.fields_views = {};
        this.widgets = {};
        this.widgets_counter = 0;
        this.fields = this.dataset.fields ? this.dataset.fields: {};
        this.ids = this.dataset.ids;
		this.name = "";
		this.date_start = "";
		this.date_delay = "";
		this.date_stop = "";
		this.color_field = "";
		this.day_lenth = 8;
		this.colors = [];
		this.color_values = [];
		this.calendar_fields = {};
		this.info_fields = [];
		this.domain = this.dataset._domain ? this.dataset._domain: [];
		this.context = {};
		
    },
    
    start: function() {
    
        this.rpc("/base_gantt/ganttview/load", {"model": this.model, "view_id": this.view_id}, this.on_loaded);
        
    },
    
    on_loaded: function(data) {
    
    	var self = this;
        this.fields_view = data.fields_view;
        this.name = this.fields_view.name || this.fields_view.arch.attrs.string;
        this.view_id = this.fields_view.view_id;

        this.date_start = this.fields_view.arch.attrs.date_start;
        this.date_delay = this.fields_view.arch.attrs.date_delay;
        this.date_stop = this.fields_view.arch.attrs.date_stop;

        this.color_field = this.fields_view.arch.attrs.color;
        this.day_length = this.fields_view.arch.attrs.day_length || 8;
        this.colors = this.fields_view.arch.attrs.colors;

        this.text = this.fields_view.arch.children[0].children[0].attrs.name;
        this.parent = this.fields_view.arch.children[0].attrs.link;
        
        this.format = "%Y-%m-%d";
        this.time = "00:00:00";
        
        self.create_gantt();
		self.get_events(self.ids);	
			
        this.$element.html(QWeb.render("GanttView", {"view": this, "fields_view": this.fields_view}));

    },
    
    create_gantt: function() {

	    ganttChartControl = new GanttChart(this.day_length);
	    ganttChartControl.setImagePath("/base_gantt/static/lib/dhtmlxGantt/codebase/imgs/");
	    ganttChartControl.setEditable(true);
	    ganttChartControl.showTreePanel(true);
	    ganttChartControl.showContextMenu(true);
	    ganttChartControl.showDescTask(true,'d,s-f');
	    ganttChartControl.showDescProject(true,'n,d');
        
    },
    
    get_events: function(event_ids) {
    
    	var self = this;
    	this.dataset.read_ids(event_ids, {}, function(result) {
				self.load_event(result);
		});
		
    },
    
    load_event: function(events) {
    
        var self = this;
        var result = events;
        var project_id = new Array();
        var project = new Array();
        var sidebar = {}
        var j = -1;

        for (i in result) {
        	
        	if (result[i][this.date_start] != false){
	            var parent_id =  result[i][this.parent][0];
	            var parent_name = result[i][this.parent][1];
				
	            if (jQuery.inArray(parent_id, project_id) == -1){
	                if (parent_id == undefined){
	                    parent_name = "";
	                }
	                j = j + 1;
	                project[j] = new GanttProjectInfo(parent_id, parent_name, new Date(2011, 1, 1));
	                project_id[j] = parent_id;
	            }
	            
	            var id = result[i]['id'];
	            var text = result[i][this.text];
	            
	            var start_date = this.convert_date_format(result[i][this.date_start]);
				
	            if (this.date_stop != undefined){
	            	if (result[i][this.date_stop] != false){
	            		var stop_date = this.convert_date_format(result[i][this.date_stop]);
	            		var duration= self.hours_between(start_date, stop_date);
	            	}
	            	else{
	            		var duration = 0;
	            	}
	            }
	            else{
	            	var duration = result[i][this.date_delay];
	            }
	            if (duration == false)
	            	duration = 0
	            		
	            var task = new GanttTaskInfo(id, text, start_date, duration, 100, "");
	            
	            k = project_id.indexOf(parent_id);
	            project[k].addTask(task);
			}
        }

        for (i in project_id){
            ganttChartControl.addProject(project[i]);
        }  
         
        ganttChartControl.create("GanttDiv");
        ganttChartControl.attachEvent("onTaskEndResize", function(task) {self.on_task_end_resize(task);})
        ganttChartControl.attachEvent("onTaskEndDrag", function(task) {self.on_task_end_drag(task);})
        
    },
    
    hours_between: function(date1, date2) {
    
	    var ONE_DAY = 1000 * 60 * 60 * 24
	    var date1_ms = date1.getTime()
	    var date2_ms = date2.getTime()
	    var difference_ms = Math.abs(date1_ms - date2_ms)
	    
	    d = Math.round(difference_ms / ONE_DAY)
	    h = Math.round(difference_ms % ONE_DAY)
	    
	    return (d * this.day_length) + h;

	},
    
    on_task_end_resize : function(task) {

            var event_id = task.getId();
            var data = {};
            
            if (this.date_stop != undefined){
				data[this.date_stop] = this.reverse_convert_date_format(task.getFinishDate());
            }else{
            	data[this.date_delay] = task.getDuration();
            }	
       		this.dataset.write(event_id, data, function(result) {});
       		
    },
    
    on_task_end_drag : function(task) {
                
        	var event_id = task.getId();
            var data = {};

            data[this.date_start] = this.reverse_convert_date_format(task.getEST());
            
            if (this.date_stop != undefined){
				data[this.date_stop] = this.reverse_convert_date_format(task.getFinishDate());
            }else{
            	data[this.date_delay] = task.getDuration();
            }	
            
            this.dataset.write(event_id, data, function(result) {});
            
    },
    
    do_show: function () {
    
    	this.$element.show();
    	
    },
    
    do_hide: function () {
    
        this.$element.hide();
        
    },
    
    convert_date_format: function(date) {
    	var self = this;
    	
  		if (date.length == 19){
			self.format = "%Y-%m-%d %H:%M:%S";
			self.time = date.split(' ')[1];
		}
		
        date = date+"";
        if(typeof (date) != "string" || date.length === 0){
            return null;
        }
        var iso=date.split("-");
        if(iso.length === 0){
            return null;
        }
        var day = iso[2];
        
        var iso_hours = day.split(' ');

        if (iso_hours.length > 1) {
            day = iso_hours[0];
            var iso_date_hours = iso_hours[1].split(':');
            var new_date = new Date(iso[0], iso[1] - 1, day);
            new_date.setHours(iso_date_hours[0]);
            new_date.setMinutes(iso_date_hours[1]);
            new_date.setSeconds(iso_date_hours[2]);
            
        }
        else {
            var new_date = new Date(iso[0], iso[1] - 1, day);
        }
        new_date.setFullYear(iso[0]);
        new_date.setMonth(iso[1]-1);
        new_date.setDate(day);
        return new_date;
        
    },
    
    reverse_convert_date_format: function(date) {
    	var self = this;

    	if (self.format == "%Y-%m-%d %H:%M:%S")
    	{
    		return date.getFullYear()+'-'+(date.getMonth()+1)+'-'+date.getDate()+' '+self.time;
    	}
    	else
    	{
    		return date.getFullYear()+"-"+(date.getMonth()+1)+"-"+date.getDate();
    	}
        
    },
    
    reload_gantt: function(domain) {
   
   		var self = this;
   		
        this.rpc('/base_gantt/ganttview/reload_gantt',{
            'domain': domain,
            'model': self.model
        },function(event_ids) {
            ganttChartControl.clearAll();
            jQuery("#GanttDiv").children().remove();
            self.get_events(event_ids);
        });
        
    },
    
    do_search: function (domains, contexts, groupbys) {
        var self = this;
        return this.rpc('/base/session/eval_domain_and_context', {
            domains: domains,
            contexts: contexts,
            group_by_seq: groupbys
        }, function (results) {
        
            self.dataset.context = results.context;
            self.dataset.domain = results.domain;
            return self.reload_gantt(self.dataset.domain);
        });
    }
    
});

// here you may tweak globals object, if any, and play with on_* or do_* callbacks on them

};

// vim:et fdc=0 fdl=0: