intercom_customers/index.html at master · silverchen/intercom_customers · GitHub

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<!--
	Author: Silver Chen
-->

<html>
	<head>
		<title>Intercom Customers within 100km</title>
		<script type="text/javascript" src="great_circle.js"></script>
		<script type="text/javascript" src="user_model.js"></script>
		<script type="text/javascript">
			const _DUBLIN_OFFICE_COORDINATES = {lat: 53.339428, lon: -6.257664};
			const _DISTANCE = 100;

			function isWithinDistance({ lat1=0, lon1=0, lat2=0, lon2=0, distance=0, unit='KM' } = {}) {
			    return GreatCircle.distance(lat1, lon1, lat2, lon2, unit) <= distance;
			}

			function binaryInsert(user, array, startVal, endVal){
				var length = array.length;
				var start = typeof(startVal) != 'undefined' ? startVal : 0;
				var end = typeof(endVal) != 'undefined' ? endVal : length - 1;
				var m = start + Math.floor((end - start)/2);

				if (length == 0) {
					array.push(user);
					return;
				}

				if (user.id > array[end].id) {
					array.splice(end + 1, 0, user);
					return;
				}

				if (user.id < array[start].id) {
					array.splice(start, 0, user);
					return;
				}

				if (start >= end) {
					return;
				}

				if (user.id < array[m].id) {
					binaryInsert(user, array, start, m - 1);
					return;
				}

				if (user.id > array[m].id) {
					binaryInsert(user, array, m + 1, end);
					return;
				}
			}

			function printResult(results, obj) {
				for (i = 0; i < results.length; i++) {
		        	obj.innerHTML += '<p>' + results[i].id + ', ' + results[i].name + '</p>';
		        }
			}

			var XMLHttpRequestObject = false;
	      	if (window.XMLHttpRequest) {
	        	XMLHttpRequestObject = new XMLHttpRequest();
	      	} else if (window.ActiveXObject) {
	        	XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
	      	}

	      	function getData(dataSource, divId) {
	        	if(XMLHttpRequestObject) {
	          		XMLHttpRequestObject.open("GET", dataSource);

	          		var statusDiv = document.getElementById("statusDiv");
	          		var resultDiv = document.getElementById(divId);
	          		var showMeBtn = document.getElementById("showMe");
	          		statusDiv.style.display = "block";
	          		resultDiv.style.display = "none";
	          		showMeBtn.style.display = "none";

	          		XMLHttpRequestObject.onreadystatechange = function() {
	          			if (XMLHttpRequestObject.readyState == 4) {
	          				statusDiv.style.display = "none";
	          				resultDiv.style.display = "block";
	          				showMeBtn.style.display = "block";

	          				if (XMLHttpRequestObject.status == 200) {
		            			if (XMLHttpRequestObject.responseText) {
		            				var results = [];
		            				var lines = XMLHttpRequestObject.responseText.split("\n");

		            				for (i = 0; i < lines.length; i++) {
		            					try {
									        var json = JSON.parse(lines[i]);
								            if (json) {
								            	var user = UserModel.init(json);

											    if (user.lat && user.lon && user.id) {
											    	var isUserWithinDistance = isWithinDistance({
											    		lat1: _DUBLIN_OFFICE_COORDINATES.lat,
											    		lon1: _DUBLIN_OFFICE_COORDINATES.lon,
											    		lat2: user.lat,
											    		lon2: user.lon,
											    		distance: _DISTANCE});

											    	if (isUserWithinDistance) {
											    		binaryInsert(user, results);
											    	}
											    }
											}
									    } catch(e) {
									        console.log("Error: ", e);
									    }
							        }

							        printResult(results, resultDiv);
								}
		            		} else {
					           console.log("Error: ", XMLHttpRequestObject.statusText);
					        }
	          			}
	          		}

	          		XMLHttpRequestObject.send(null);
	        	}
	      	}
		</script>
	</head>

	<body>
		<h3>Show the user ids and names of matching customers within 100km of Dublin office.</h3>
		<p id="showMe"><a href="#" onClick="getData('https://gist.githubusercontent.com/brianw/19896c50afa89ad4dec3/raw/6c11047887a03483c50017c1d451667fd62a53ca/gistfile1.txt', 'targetDiv')">Show Me</a></p>
		<div id="statusDiv" style="display: none">Loading...</div>
		<div id="targetDiv" style="display: none">
			<br/>
	     	<p>Results:</p>
	    </div>
	</body>
</html>