/* Wochentagsbestimmung fuer highcharts -> Sa. u So. highlighten */
var MICROSECONDS_PER_DAY = 24 * 60 * 60 * 1000 ;

// Set some global Highcharts options
Highcharts.setOptions({
    lang: {
    	months: [gettext('January'), gettext('February'), gettext('March'),
                 gettext('April'), gettext('May'), gettext('June'),
    		     gettext('July'), gettext('August'), gettext('September'),
                 gettext('October'), gettext('November'), gettext('December')],
    	weekdays: [gettext('Sun'), gettext('Mon'), gettext('Tue'), 
    	           gettext('Wed'), gettext('Thu'), gettext('Fri'), 
    	           gettext('Sat')]
    }
});

function get_weekend_plotbands (start_timestamp, end_timestamp) {
    var plotbands = [];
    var start = 0;
    var stop = 0;
    
    for (var ts = start_timestamp; ts <= end_timestamp; ts += MICROSECONDS_PER_DAY) {
        var day = new Date(ts);
        day.setHours(0);
        day.setMinutes(0);
        day.setSeconds(0);
        day.setMilliseconds(0);
        
        var week_day = day.getDay();
        
        if (week_day == 6) {
            start = Date.parse(day) - MICROSECONDS_PER_DAY/2;
            stop = start + MICROSECONDS_PER_DAY*2;
            
            plotbands.push({'from': start, 'to': stop, 'color': '#f7f7f7'});
            
        }
        
        if (week_day == 0) {
            if (Date.parse(day) <= stop)
                continue;
            
            stop = Date.parse(day) + MICROSECONDS_PER_DAY/2;
            start = stop - MICROSECONDS_PER_DAY*2;
            
            plotbands.push({'from': start, 'to': stop, 'color': '#f7f7f7'});
        }
    }

    return plotbands;
}

function Trennzeichen(zahl) {
    zahl = '' + zahl;
    str_zahl = zahl.toString(zahl);
    str_zahl = str_zahl.replace(".",",");
    for (i=0; i < str_zahl.length; i++){
        if(str_zahl.charAt(i) == ',') {
            return str_zahl;
            break;
        }
    }
    if (zahl.length > 3 ) {
        var mod = zahl.length % 3;
        var output = (mod > 0 ? (zahl.substring(0,mod)) : '');
        for (i=0 ; i < Math.floor(zahl.length / 3); i++) {
            if ((mod == 0) && (i == 0)) {
                output += zahl.substring(mod+ 3 * i, mod + 3 * i + 3);
            }
            else {
                output+= '.' + zahl.substring(mod + 3 * i, mod + 3 * i + 3);
            }
        }
        return (output);
    }
    else return zahl;
}

function zahl_plus_k(zahl) {
	zahl = '' + zahl;
	if (zahl >= 1000) {
		ergebnis = zahl / 1000 + 'k';
		return ergebnis;
	} else {
		return zahl;
	}
}
////////////////////////////////////////////////////////////////////////////////
function url_trunc(url, maxLen) {
    var defaultValue = 30;
    var lenUrl = url.length;
    var maxLen = (typeof maxLen == 'undefined') ? defaultValue : maxLen;
    if (url.charAt(0) == 'h'  && lenUrl > maxLen) {
        var first = url.indexOf('://') + 3;
        var rest = url.slice(first, lenUrl);
        try {
            idx = rest.indexOf('/') + 1;
        }
        catch (ValueError) {
            idx = rest.length;
        }
        if (idx + first <= maxLen) {
            newUrl = url.slice(0, maxLen-3) + '...';
        }
        else {
            newUrl = url.slice(0, first) + rest.slice(0, idx) + '...';
        }
        return newUrl;
    } else if (url.charAt(0) == 'w' && lenUrl > maxLen) {
        var first = url.indexOf('.') + 1;
        var rest = url.slice(first, lenUrl);
        try {
            idx = url.indexOf('/') + 1;
        } catch (ValueError) {
            idx = lenUrl;
        }
        if (idx + first <= maxLen) {
            newUrl = url.slice(0, maxLen-3) + '...';
        } else {
            newUrl = url.slice(0, first) + rest.slice(0,idx) + '...';
        }
        return newUrl;
    } else {
        return url;
    }
}
////////////////////////////////////////////////////////////////////////////////

function renumber_list_items(list_node, id_prefix) {
	index_item = 0;
	$(".list-item").each(function(index, list_item) {
		if ($(".list-item-field", list_item).attr("id")==undefined || 
			$(".list-item-field", list_item).attr("id").indexOf(id_prefix)!=-1){
		    $(".list-item-field", list_item).attr("id", "id_" + id_prefix + "_" + index_item);
		    $(".list-item-field", list_item).attr("name", id_prefix + "_" + index_item);
		    index_item++;
		}
	});
}

/* Functions used by dynamic list editor **************************************/
function add_list_item(list_node, id_prefix) {
	// clone list item template and fix id and class attributes
    var $newField=list_node.children("#list-item-template").clone(true);
    $newField.removeAttr("id");
    $newField.addClass("list-item");
    $newField.find(".remove-button").hide();
    // insert new field after last list item
    list_node.children("#list-item-template,.list-item").slice(-1).after($newField);
    renumber_list_items(list_node, id_prefix);
    // show all remove buttons, as there must be more than one now
    $newField.show("fast", function() {
    	$(this).find("input.list-item-field").focus();
    	$(this).find(".remove-button").show("fast");
    	list_node.find(".remove-button").show();
    });

    return false;
}

function remove_list_item(list_item_node, id_prefix) {
	// hide 'remove' button if there is only one list item
	if (list_item_node.siblings(".list-item").size() <= 1) {
	    list_item_node.siblings(".list-item").find(".remove-button").css("display", "none");
	}
	list_item_node.find(".remove-button").hide();
	list_node = list_item_node.closest(".list");
	list_item_node.hide("fast", function() {
	    list_item_node.remove();
	    renumber_list_items(list_node, id_prefix);
	});
	return false;
}

/* Utility functions **********************************************************/

function update_navigation(url) {
	$('#nav2 a').removeClass('active');
	$('#nav2 a[href^="' + url + '"]').addClass('active');
}

function create_overlay_msg(text) {
	var overlay_el = document.createElement('div');
	$(overlay_el)
		.attr('id', 'main-overlay')
		.width($('#main').width())
	    .height($('#main').height())
	    .css({backgroundColor:'white', opacity:0.8, position:'absolute',
	    	left:0, top:0, 'z-index': 999})
	    .prependTo($('#main'))
	    .html(text);
	$('#main').css('position','relative');

	return overlay_el;
}

function show_sidebar_help(input_id) {
    var input_el = $('#' + input_id);
    var help_el = null;
    if (input_id.substr(0, 'id_search_terms'.length) === 'id_search_terms') {
        help_el = $('#help-id_search_terms');
    } else {
	    help_el = $('#help-' + input_id);
	}
    help_el
        .css('top', input_el.position().top + input_el.height()/2 - help_el.outerHeight()/2)
        .show();
    var image_el = $('#sidebar .help_arrow');
    image_el
        .css('top', input_el.position().top + input_el.height()/2 - image_el.height()/2)
        .show();
}

function hide_sidebar_help(input_id) {
    if (input_id.substr(0, 'id_search_terms'.length) === 'id_search_terms') {
        input_id = 'id_search_terms';
    }
    $('#help-' + input_id).hide();
    $('#sidebar .help_arrow').hide();
}

// Extend jQuery
jQuery.info_tooltip = {version: '0.0.1'};
$(function() {
	// Info tooltip function. Pops up an info tooltip if element is clicked.
	// Use like this:
	// $('.your-button-class').info_tooltip();
	//
	$.fn.info_tooltip = function(options) {
		var opts = jQuery.extend(false, jQuery.info_tooltip.defaults, jQuery.info_tooltip.options, options);
		var width = opts['width'];
		var cls = opts['tooltip_class'];
		
		return this.each(function() {
			var content = $(this).attr('title');
			if (content == '') {
				return;
			}
			// remove previous tooltips
			$('.tooltip', this).remove();
			// append tooltip HTML
			$('<div class="' + cls + '" style="display:none; max-width:' + width + 'px">' + 
					content + '</div>')
				.appendTo(this);
			// remove title attribute & add event handler
			$(this)
				.removeAttr('title')
				.click(function(e) {
					$('.tooltip').hide();
					if ($(e.target).hasClass('tooltip-active')) {
						$(e.target).removeClass('tooltip-active');
					} else {
						var left = 0;
						if ($(e.target).offset().left + $(e.target).outerWidth() + 
								$('.tooltip', e.target).outerWidth() > $(document).width()) {
							left = $(e.target).offset().left - width;
						} else {
							left = $(e.target).offset().left + $(e.target).width();
						}
						$('.tooltip', e.target)
							.css('left', left)
							.css('top', $(e.target).offset().top)
							.fadeIn();
						$(e.target)
							.addClass('tooltip-active');
						$(document).click(function(e) {
							$('').removeClass('tooltip-active');
							$('.tooltip').fadeOut();
						})
					}
					e.stopPropagation();
				});
		});
	};
	
	$.info_tooltip.defaults = {
		width: 400,
		tooltip_class: 'tooltip',
		effect: ''
	};
	$.info_tooltip.options = {};
});

// Live search
$.live_search_form = {version: '0.0.1'};
$(function() {
	$.fn.live_search_form = function(options) {
		var opts = $.extend(false, $.live_search_form.defaults, $.live_search_form.options);
		opts = $.extend(false, opts, options);
		this.postings_list = opts['postings_list'];
		this.query = this.postings_list.query || '';
		this.timestamp = 0;
		var obj = this;
		$('input.query', obj)
		    .data('timeout', null)
		    .val(obj.query)
		    .keyup(function() {
		        var query = $('input.query', obj).val();
		        if (query !== obj.query) {
		        	obj.query = query;
		            $('.search_preloader', obj).show();
		            var now = new Date().getTime();
		            $(obj).data('timeout', setTimeout(function() {
		            	// make sure only the latest query is executed; abort
		            	// the other one if applicable
		                if (obj.timestamp < now) {
		                    obj.timestamp = now;
		                    obj.postings_list.abort();
		                    obj.postings_list.query = obj.query;
		                    obj.postings_list.update({callback: function() {
		                    	if (obj.timestamp == now) {
		                    		$('.search_preloader', obj).hide();
		                    	}
		                    }});
		                }
	                }, 2000));
		        }
		    })
		    .keydown(function(){
		        clearTimeout($(this).data('timeout'));
		    });
	}
	
	$.live_search_form.defaults = {};
	$.live_search_form.options = {};
});