/*
* jQuery address suggestion
* Author: Zheng Jia
* http://github.com/zhengjia/address-suggestion
* Licensed under the MIT license.
*/

(function($) {

	var Address = {
		timeout_id: 0,
		get_address_data: function() {
			var address_value = Address.options.address.val();
			Address.geocode(address_value, function(data) {
				if (data) {
					Address.options.suggestion.html("");
					$.each(data, function(int_index, value) {
						append_element = "<tr><td>" + value.address + "</td><td><button class='jquery-googlemaps-button' data-longitude='" + value.longitude + "' data-latitude='" + value.latitude + "'>Select</button></td></tr>";
						Address.options.suggestion.append(append_element);
					}); //end each
				}
				else {
					alert('ERROR! Unable to geocode address');
				}
			}); //end geocode
		}, //end of getAddressData        
		delay_on_change: function(e) {
			window.clearTimeout(Address.timeout_id);
			Address.timeout_id = window.setTimeout(Address.get_address_data, Address.options.delay);
		},
		geocode: function(address, callback) {
			jQuery.ajax({
				dataType: 'jsonp',
				url: 'http://maps.google.com/maps/geo?output=json&oe=utf8&sensor=false' + '&key=' + Address.options.api_key + '&q=' + address,
				cache: false,
				success: function(data) {
					if (data.Status.code == 200) {
						var result = [];
						$.each(data.Placemark, function(int_index, value) {
							var result_element = {};
							result_element.address = value.address;
							result_element.longitude = value.Point.coordinates[0];
							result_element.latitude = value.Point.coordinates[1];
							result[int_index] = result_element;
						});
						callback(result);
					} else {
						callback(null);
					}
				}
			}); //end ajax
		}, //end geocode
		load_new_address: function(longitude, latitude, full_address) {
			if (Address.options.mark) {
				Address.options.container.removeOverlay(Address.options.mark);
			}
			//update map
			var pointB = new GLatLng(latitude, longitude);
			Address.options.mark = new GMarker(pointB);
			Address.options.container.addOverlay(Address.options.mark);
			Address.options.container.setCenter(pointB, 14);
		},
		add_result_to_page: function(longitude, latitude, full_address) {
			var longitude_element = $('input#longitude');
			var latitude_element = $('input#latitude');
			Address.options.address.val(full_address);
			if (longitude_element.length == 0) {
				//get the longitude and latitude with $(#longitude).val() and $(latitude).val()
				$('body').append('<input type="hidden" id="longitude" value = ' + longitude + ' />').append('<input type="hidden" id="latitude" value = ' + latitude + ' />');
			}
			else {
				longitude_element.val(longitude);
				latitude_element.val(latitude);
			}
		}

	}
	$.fn.acts_as_address = function(user_defined_options) {
		Address.options = $.extend({
			suggestion: '#suggestion',
			delay: 500,
			address: $(this)
		}, user_defined_options || {});

		Address.options.suggestion = $(Address.options.suggestion);
		Address.options.mark = null;
		Address.options.address.keydown(Address.delay_on_change);

		$(".jquery-googlemaps-button").live("click", function() {
			var longitude = $(this).attr("data-longitude");
			var latitude = $(this).attr("data-latitude");
			var full_address = $(this).parent().prev().text();

			Address.options.address.val(full_address);
			Address.add_result_to_page(longitude, latitude, full_address);
			Address.load_new_address(longitude, latitude);
		})
		return this;
	} //end acts_as_address
})(jQuery);