/*---------------------------------------------------------
 * OpenERP base_calendar
 *---------------------------------------------------------*/

openerp.base_calendar = function(openerp) {
QWeb.add_template('/base_calendar/static/src/xml/base_calendar.xml');
openerp.base.views.add('calendar', 'openerp.base_calendar.CalendarView');
openerp.base_calendar.CalendarView = openerp.base.View.extend({
// Dhtmlx scheduler ?
    init: function(parent, element_id, dataset, view_id, options) {
        this._super(parent, element_id);
        this.set_default_options(options);
        this.dataset = dataset;
        this.model = dataset.model;
        this.view_id = view_id;
        this.domain = this.dataset.domain || [];
        this.context = this.dataset.context || {};
        this.has_been_loaded = $.Deferred();
        this.creating_event_id = null;
        if (this.options.action_views_ids.form) {
            this.form_dialog = new openerp.base_calendar.CalendarFormDialog(this, {}, this.options.action_views_ids.form, dataset);
            this.form_dialog.start();
        }
    },
    start: function() {
        this.rpc("/base_calendar/calendarview/load", {"model": this.model, "view_id": this.view_id, 'toolbar': true}, this.on_loaded);
    },
    stop: function() {
        scheduler.clearAll();
    },
    on_loaded: function(data) {
        this.calendar_fields = {};
        this.ids = this.dataset.ids;
        this.color_values = [];
        this.info_fields = [];

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

        //* Calendar Fields *
        this.calendar_fields['date_start'] = {'name': this.date_start, 'kind': this.fields[this.date_start]['type']};

        if (this.date_delay) {
             this.calendar_fields['date_delay'] = {'name': this.date_delay, 'kind': this.fields[this.date_delay]['type']};
        }

        if (this.date_stop) {
            this.calendar_fields['date_stop'] = {'name': this.date_stop, 'kind': this.fields[this.date_stop]['type']};
        }

        for (var fld = 0; fld < this.fields_view.arch.children.length; fld++) {
            this.info_fields.push(this.fields_view.arch.children[fld].attrs.name);
        }
        this.$element.html(QWeb.render("CalendarView", {"fields_view": this.fields_view}));

        if (this.options.sidebar && this.options.sidebar_id) {
            this.sidebar = new openerp.base.Sidebar(this, this.options.sidebar_id);
            this.sidebar.start();
            this.sidebar.navigator = new openerp.base_calendar.SidebarNavigator(this.sidebar, this.sidebar.add_section('navigator', "Navigator"), this);
            this.sidebar.responsible = new openerp.base_calendar.SidebarResponsible(this.sidebar, this.sidebar.add_section('responsible', "Responsible"), this);
            this.sidebar.add_toolbar(data.fields_view.toolbar);
            this.set_common_sidebar_sections(this.sidebar);
            this.sidebar.do_unfold();
            this.sidebar.do_fold.add_last(this.refresh_scheduler);
            this.sidebar.do_unfold.add_last(this.refresh_scheduler);
            this.sidebar.do_toggle.add_last(this.refresh_scheduler);
        }

        this.init_scheduler();
        this.has_been_loaded.resolve();
        if (this.dataset.ids.length) {
            this.dataset.read_ids(this.dataset.ids, _.keys(this.fields), this.on_events_loaded);
        }
    },
    init_scheduler: function() {
        var self = this;
        scheduler.clearAll();
        if (this.fields[this.date_start]['type'] == 'time') {
            scheduler.config.xml_date = "%H:%M:%S";
        } else {
            scheduler.config.xml_date = "%Y-%m-%d %H:%i";
        }
        scheduler.config.api_date = "%Y-%m-%d %H:%i";
        scheduler.config.multi_day = true; //Multi day events are not rendered in daily and weekly views
        scheduler.config.start_on_monday = true;
        scheduler.config.scroll_hour = 8;
        scheduler.config.drag_resize = scheduler.config.drag_create = !!this.date_stop;

        // Initialize Sceduler
        this.mode = this.mode || 'month';
        scheduler.init('openerp_scheduler', null, this.mode);

        scheduler.detachAllEvents();
        scheduler.attachEvent('onEventAdded', this.do_create_event);
        scheduler.attachEvent('onEventDeleted', this.do_delete_event);
        scheduler.attachEvent('onEventChanged', this.do_save_event);
        scheduler.attachEvent('onDblClick', this.do_edit_event);

        this.mini_calendar = scheduler.renderCalendar({
            container: this.sidebar.navigator.element_id,
            navigation: true,
            date: scheduler._date,
            handler: function(date, calendar) {
                scheduler.setCurrentView(date, 'day');
            }
        });
    },
    refresh_scheduler: function() {
        scheduler.setCurrentView(scheduler._date);
    },
    refresh_minical: function() {
        scheduler.updateCalendar(this.mini_calendar);
    },
    reload_event: function(id) {
        this.dataset.read_ids([id], _.keys(this.fields), this.on_events_loaded);
    },
    load_scheduler: function() {
        var self = this;
        this.dataset.read_slice([], 0, false, function(events) {
            if (self.session.locale_code) {
                // TODO: replace $LAB
                $LAB.setOptions({AlwaysPreserveOrder: true}).script([
                    '/base_calendar/static/lib/dhtmlxScheduler/sources/locale_' + self.session.locale_code + '.js',
                    '/base_calendar/static/lib/dhtmlxScheduler/sources/locale_recurring_' + self.session.locale_code + '.js'
                ]).wait(function() {
                    self.on_events_loaded(events);
                });
            } else {
                self.on_events_loaded(events);
            }
        });
    },
    on_events_loaded: function(events) {
        var self = this;

        //To parse Events we have to convert date Format
        var res_events = [],
            sidebar_items = [],
            sidebar_ids = [];
        for (var e = 0; e < events.length; e++) {
            var evt = events[e];
            if (!evt[this.date_start]) {
                this.notification.warn("Start date is not defined for event :", evt['id']);
                break;
            }

            if (this.fields[this.date_start]['type'] == 'date') {
                evt[this.date_start] = openerp.base.parse_date(evt[this.date_start]).set({hour: 9}).toString('yyyy-MM-dd HH:mm:ss');
            }
            if (this.date_stop && evt[this.date_stop] && this.fields[this.date_stop]['type'] == 'date') {
                evt[this.date_stop] = openerp.base.parse_date(evt[this.date_stop]).set({hour: 17}).toString('yyyy-MM-dd HH:mm:ss');
            }
            if (this.color_field) {
                var user = evt[this.color_field];
                if (user) {
                    if (_.indexOf(sidebar_ids, user[0]) === -1) {
                        sidebar_items.push({
                            id: user[0],
                            name: user[1],
                            // TODO: use color table
                            color: '#dddddd'
                        });
                        sidebar_ids.push(user[0]);
                    }
                }
            }
            res_events.push(this.convert_event(evt));
        }
        scheduler.parse(res_events, 'json');
        this.refresh_scheduler();
        this.refresh_minical();
        this.sidebar.responsible.on_events_loaded(sidebar_items);
    },
    convert_event: function(event) {
        var starts = event[this.date_start],
            ends = event[this.date_delay] || 1,
            span = 0,
            res_text = '',
            res_description = [];

        var parse_start_date = openerp.base.parse_datetime(starts);
        if (event[this.date_stop]) {
            var parse_end_date = openerp.base.parse_datetime(event[this.date_stop]);
        }
        if (this.info_fields) {
            var fld = event[this.info_fields[0]];

            if (typeof fld == 'object') {
                res_text = fld[fld.length -1];
            } else {
                res_text = fld;
            }

            var sliced_info_fields = this.info_fields.slice(1);
            for (sl_fld in sliced_info_fields) {
                var slc_fld = event[sliced_info_fields[sl_fld]];

                if (typeof slc_fld == 'object') {
                    res_description.push(slc_fld[slc_fld.length - 1]);
                } else {
                    if(slc_fld) res_description.push(slc_fld);
                }
            }
        }

        if (starts && ends) {
            var n = 0,
                h = ends;
            if (ends == this.day_length) {
                span = 1;
            } else if (ends > this.day_length) {
                n = ends / this.day_length;
                h = ends % this.day_length;
                n = parseInt(Math.floor(n));

                if (h > 0) {
                    span = n + 1;
                } else {
                    span = n;
                }
            }
            var start = parse_start_date.setTime((parse_start_date.getTime() + (h * 60 * 60) + (n * 24 * 60 * 60)));
            ends = parse_start_date;
        }

        if (starts && this.date_stop) {
            ends = parse_end_date;
            if (event[this.date_stop] == undefined) {
                var start = parse_start_date.setTime((parse_start_date.getTime() + (h * 60 * 60) + (n * 24 * 60 * 60)));
                ends = parse_start_date;
            }
            var tds = parse_start_date.getTime(),
                tde = parse_end_date.getTime();

            if (tds >= tde) {
                tde = tds + 60 * 60;
                parse_end_date.setTime(tde);
                ends = parse_end_date;
            }
            n = (tde - tds) / (60 * 60);
            if (n >= this.day_length) {
                span = Math.ceil(n / 24);
            }
        }
        return {
            'start_date': parse_start_date.toString('yyyy-MM-dd HH:mm:ss'),
            'end_date': ends.toString('yyyy-MM-dd HH:mm:ss'),
            'text': res_text,
            'id': event['id'],
            'title': res_description.join()
        }
    },
    do_create_event: function(event_id, event_obj) {
        var self = this,
            data = this.get_event_data(event_obj);
        this.dataset.create(data, function(r) {
            var id = parseInt(r.result, 10);
            self.dataset.ids.push(id);
            scheduler.changeEventId(event_id, id);
            self.refresh_minical();
        }, function(r, event) {
            self.creating_event_id = event_id;
            self.form_dialog.form.on_record_loaded(data);
            self.form_dialog.open();
            event.preventDefault();
        });
    },
    do_save_event: function(event_id, event_obj) {
        var self = this,
            data = this.get_event_data(event_obj);
        this.dataset.write(parseInt(event_id, 10), data, function() {
            self.refresh_minical();
        });
    },
    do_delete_event: function(event_id, event_obj) {
        var self = this;
        // dhtmlx sends this event even when it does not exist in openerp.
        // Eg: use cancel in dhtmlx new event dialog
        if (_.indexOf(this.dataset.ids, parseInt(event_id, 10)) > -1) {
            this.dataset.unlink(parseInt(event_id, 10), function() {
                self.refresh_minical();
            });
        }
    },
    do_edit_event: function(event_id) {
        event_id = parseInt(event_id, 10);
        var index = _.indexOf(this.dataset.ids, event_id);
        if (index > -1) {
            this.dataset.index = index;
            this.form_dialog.form.do_show();
            this.form_dialog.open();
        } else {
            this.notification.warn("Edit event", "Could not find event #" + event_id);
        }
    },
    get_event_data: function(event_obj) {
        var data = {
            name: event_obj.text
        };
        var date_format = this.calendar_fields.date_start.kind == 'time' ? 'HH:mm:ss' : 'yyyy-MM-dd HH:mm:ss';
        data[this.date_start] = event_obj.start_date.toString(date_format);
        if (this.date_stop) {
            data[this.date_stop] = event_obj.end_date.toString(date_format);
        }
        if (this.date_delay) {
            var tds = (event_obj.start_date.getOrdinalNumber() / 1e3 >> 0) - (event_obj.start_date.getOrdinalNumber() < 0);
            var tde = (event_obj.end_date.getOrdinalNumber() / 1e3 >> 0) - (event_obj.end_date.getOrdinalNumber() < 0);
            var n = (tde - tds) / (60 * 60);
            if (n > this.day_length) {
                var d = Math.floor(n / 24),
                    h = n % 24;
                n = d * this.day_length + h;
            }
            data[this.date_delay] = n;
        }
        return data;
    },
    do_search: function(domains, contexts, groupbys) {
        var self = this;
        this.rpc('/base/session/eval_domain_and_context', {
            domains: domains,
            contexts: contexts,
            group_by_seq: groupbys
        }, function (results) {
            // TODO: handle non-empty results.group_by with read_group
            self.dataset.context = self.context = results.context;
            self.dataset.domain = self.domain = results.domain;
            self.dataset.read_slice(_.keys(self.fields), 0, self.limit, self.on_events_loaded);
        });
    },
    do_show: function () {
        var self = this;
        $.when(this.has_been_loaded).then(function() {
            self.$element.show();
            if (self.sidebar) {
                self.sidebar.$element.show();
            }
        });
    },
    do_hide: function () {
        this.$element.hide();
        if (this.sidebar) {
            this.sidebar.$element.hide();
        }
    },
    popup_event: function(event_id) {
        var self = this;
        if (event_id) event_id = parseInt(event_id, 10);
        var action = {
            res_model: this.dataset.model,
            res_id: event_id,
            views: [[false, 'form']],
            type: 'ir.actions.act_window',
            view_type: 'form',
            view_mode: 'form',
            flags : {
                search_view: false,
                sidebar : false,
                views_switcher : false,
                action_buttons : false,
                pager: false
            }
        }
        var element_id = _.uniqueId("act_window_dialog");
        var dialog = $('<div>', {
            'id': element_id
        }).dialog({
            modal: true,
            width: 'auto',
            height: 'auto',
            buttons: {
                Cancel: function() {
                    $(this).dialog("destroy");
                },
                Save: function() {
                    var view_manager = action_manager.viewmanager;
                    var _dialog = this;
                    view_manager.views[view_manager.active_view].controller.do_save(function(r) {
                        $(_dialog).dialog("destroy");
                        // self.start();
                        self.load_scheduler();
                    })
                }
            }
        });
        var action_manager = new openerp.base.ActionManager(this, element_id);
        action_manager.start();
        action_manager.do_action(action);
        //Default_get
        if (!event_id) {
            this.dataset.index = null;
        }
    }
});

openerp.base_calendar.CalendarFormDialog = openerp.base.Dialog.extend({
    init: function(view, options, view_id, dataset) {
        this._super(view, options);
        this.dataset = dataset;
        this.view_id = view_id;
        this.view = view;
    },
    start: function() {
        this._super();
        this.form = new openerp.base.FormView(this, this.element_id, this.dataset, this.view_id, {
            sidebar: false,
            pager: false
        });
        this.form.start();
        this.form.on_created.add_last(this.on_form_dialog_saved);
        this.form.on_saved.add_last(this.on_form_dialog_saved);
    },
    on_form_dialog_saved: function() {
        var id = this.dataset.ids[this.dataset.index];
        if (this.view.creating_event_id) {
            scheduler.changeEventId(this.view.creating_event_id, id);
            this.view.creating_event_id = null;
        }
        this.view.reload_event(id);
        this.close();
    },
    on_close: function() {
        if (this.view.creating_event_id) {
            scheduler.deleteEvent(this.view.creating_event_id);
            this.view.creating_event_id = null;
        }
    }
});

openerp.base_calendar.SidebarResponsible = openerp.base.Widget.extend({
    init: function(parent, element_id, view) {
        this._super(parent, element_id);
        this.view = view;
    },
    on_events_loaded: function(users) {
        this.$element.html(QWeb.render('CalendarView.sidebar.responsible', { users : users }));
        // TODO: bind checkboxes reload sheduler
    }
});

openerp.base_calendar.SidebarNavigator = openerp.base.Widget.extend({
    init: function(parent, element_id, view) {
        this._super(parent, element_id);
        this.view = view;
    },
    on_events_loaded: function(events) {
    }
});

};

// DEBUG_RPC:rpc.request:('execute', 'addons-dsh-l10n_us', 1, '*', ('ir.filters', 'get_filters', u'res.partner'))
// vim:et fdc=0 fdl=0 foldnestmax=3 fdm=syntax: