/**********************************************************************
 * stations.js                                                        *
 * script for station specific functions and setup                    *
 **********************************************************************/

/*	License
	Copyright 2014 Kasper D. Fischer <kasper.fischer@rub.de>

	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 3 of the License, or (at your option)
	any later version.

	This program is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	for more details.

	You should have received a copy of the GNU General Public License along
	with this program. If not, see http://www.gnu.org/licenses/.

	$Id$
*/

/* Load the stations using ajax */
function loadStations(stime, etime) {
	var mapBounds = map.getBounds();
	var N = mapBounds.getNorth();
	var E = mapBounds.getEast();
	var S = mapBounds.getSouth();
	var W = mapBounds.getWest();
	if ( !stime ) {
		var stime = new Date();
		stime.setDate(stime.getDate()-config['map']['timespan']);
	};
	if ( !etime ) {
		var etime = new Date();
		etime.setDate(etime.getDate()+1);
	};
	var request_data = {
		endafter: sprintf("%d-%02d-%02d", stime.getFullYear(), stime.getMonth()+1, stime.getDate()),
		startbefore: sprintf("%d-%02d-%02d", etime.getFullYear(), etime.getMonth()+1, etime.getDate()),
		minlat: S-config['map']['latlngDelta'],
		maxlat: N+config['map']['latlngDelta'],
		minlon: W-config['map']['latlngDelta'],
		maxlon: E+config['map']['latlngDelta'],
	};
	$.ajax({
		type: "GET",
		url: config['ajax']['stationURL'],
		dataType: "xml",
		data: request_data,
		success: function (xml) {
			$(xml).find('Network').each(function () {
				var network = $(this).attr('code');
				$(this).find('Station').each(function () {
					var station = $(this).attr('code'),
						lat = $(this).find('Latitude').text(),
						lng = $(this).find('Longitude').text(),
						stationID = network+'_'+station,
						stationText = network+'.'+station;
					if ( !stationTable[stationID] ) { // && N >= lat && S <= lat && W<= lng && E >= lng
						var row = sprintf('<tr><td>%s</td><td>%s</td><td class="ar">%7.4f</td><td class="ar">%7.4f</td></tr>' , network, station, Number(lat), Number(lng));
						var r = $(row);
						$('#stationstable tbody').append(r);
						addStationMarker(stationID, Number(lat), Number(lng), stationText.toUpperCase());
					};
				});
			});
		},
		complete: function () {
			initStationTable();
			var sort = [[0,0],[1,0]];
			$("#stationstable").trigger("update", [true]);
			$("#stationstable").trigger("updateCache");
			$("#stationstable").trigger("sorton", [sort]);
			$("#stationstable > tbody > tr:even").addClass("odd");
			$("#stationstable > tbody > tr:odd").addClass("even");
			stationLayer.bringToFront();
		}
	});
};

/* initStationTable */
function initStationTable() {
	// tablesorter for station list
	$("#stationstable").tablesorter(
		{
			theme : 'blue',
			cssChildRow: "tablesorter-childRow", // this is the default setting
			widgets: ["uitheme", "zebra", "filter", "pager"], // initialize zebra and filter widgets, "scroller"
			widgetOptions: {
				// output default: '{page}/{totalPages}'
				// possible variables: {page}, {totalPages}, {filteredPages}, {startRow}, {endRow}, {filteredRows} and {totalRows}
				pager_output: '# {startRow} - {endRow} ({totalRows}) | Seite {page} ({totalPages})',
				// apply disabled classname to the pager arrows when the rows at either extreme is visible
				pager_updateArrows: true,
				// starting page of the pager (zero based index)
				pager_startPage: 0,
				// Number of visible rows
				pager_size: 35,
				// Save pager page & size if the storage script is loaded (requires $.tablesorter.storage in jquery.tablesorter.widgets.js)
				pager_savePages: true,
				// if true, the table will remain the same height no matter how many records are displayed. The space is made up by an empty
				// table row set to a height to compensate; default is false
				pager_fixedHeight: false,
				// remove rows from the table to speed up the sort of large tables.
				// setting this to false, only hides the non-visible rows; needed if you plan to add/remove rows with the pager enabled.
				pager_removeRows: false,
				// css class names of pager arrows
				pager_css: {
					container   : 'stations-tablesorter-pager',
					errorRow    : 'tablesorter-errorRow', // error information row (don't include period at beginning)
					disabled    : 'disabled'              // class added to arrows @ extremes (i.e. prev/first arrows "disabled" on first page)
				},
				// jQuery pager selectors
				pager_selectors: {
					container   : '.stationspager',       // target the pager markup (wrapper)
					first       : '.stationsfirst',       // go to first page arrow
					prev        : '.stationsprev',        // previous page arrow
					next        : '.stationsnext',        // next page arrow
					last        : '.stationslast',        // go to last page arrow
					goto        : '.stationsgotoPage',    // go to page selector - select dropdown that sets the current page
					pageDisplay : '.stationspagedisplay', // location of where the "output" is displayed
					pageSize    : '.stationspagesize'     // page size selector - select dropdown that sets the "size" option
				},

				filter_childRows  : true,
				filter_cssFilter  : 'tablesorter-filter',
				filter_startsWith : false,
				filter_ignoreCase : true,
				scroller_height: $('div.map').height() - 250,
				scroller_barWidth: 10,
				scroller_jumpToHeader: false,
				sortList: "[[0,0], [1,0]]",
				resort: true,
				showProcessing: true,
			}
		});
};

/**********************************************************************
 * document ready                                                     *
 **********************************************************************/
$(document).ready(function() {
	loadStations();
});