Basic charting and parsing hooked up

It's primitive now, but a good start.

.clang-format

@@ -0,0 +1,22 @@
+# http://releases.llvm.org/6.0.0/tools/clang/docs/ClangFormatStyleOptions.html
+BasedOnStyle: Google
+AccessModifierOffset: -4
+AllowShortBlocksOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+BreakBeforeBraces: Allman
+BraceWrapping:
+  AfterNamespace: false
+BreakBeforeTernaryOperators: false
+ColumnLimit: 100
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+IndentWidth: 4
+Standard: Cpp11
+TabWidth: 4
+UseTab: ForIndentation
+DerivePointerAlignment: false
+PointerAlignment: Left
+NamespaceIndentation: None
+IndentCaseLabels: true

LazyBudgetServer.py

@@ -8,6 +8,7 @@ import tornado.gen
 
 import os
 import random
+import webbrowser
 
 # Require a username and password in order to use the web interface. See ReadMe.org for details.
 #enable_authentication = False
@@ -144,9 +145,7 @@ class AuthedStaticHandler(tornado.web.StaticFileHandler):
 class HomeHandler(AuthHandler):
     @tornado.web.authenticated
     def get(self):
-        # Replace with your desired behavior, e.g. 
-        # self.render('webInterface/index.html')
-        self.write('You are logged in!')
+        self.render('webInterface/index.html')
 
 class ExampleWebSocket(tornado.websocket.WebSocketHandler):
     connections = set()
@@ -190,7 +189,7 @@ def make_app():
         # (r'/ExampleWebSocket', ExampleWebSocket),
 
         # Static files
-        # (r'/webInterface/(.*)', AuthedStaticHandler, {'path' : 'webInterface'}),
+        (r'/webInterface/(.*)', AuthedStaticHandler, {'path' : 'webInterface'}),
 
         # Files served regardless of whether the user is authenticated. Only login page resources
         # should be in this folder, because anyone can see them
@@ -222,6 +221,10 @@ if __name__ == '__main__':
         print('\n\tWARNING: Do NOT run this server on the internet (e.g. port-forwarded)'
               ' nor when\n\t connected to an insecure LAN! It is not protected against malicious use.\n')
         app.listen(port)
-        
+
+    browseUrl  ="{}://localhost:{}".format('https' if useSSL else 'http', port)
+    print("Attempting to launch user's default browser to {}".format(browseUrl))
+    webbrowser.open(browseUrl)
+
     ioLoop = tornado.ioloop.IOLoop.current()
     ioLoop.start()

webInterface/Chart.css

@@ -0,0 +1,47 @@
+/*
+ * DOM element rendering detection
+ * https://davidwalsh.name/detect-node-insertion
+ */
+@keyframes chartjs-render-animation {
+	from { opacity: 0.99; }
+	to { opacity: 1; }
+}
+
+.chartjs-render-monitor {
+	animation: chartjs-render-animation 0.001s;
+}
+
+/*
+ * DOM element resizing detection
+ * https://github.com/marcj/css-element-queries
+ */
+.chartjs-size-monitor,
+.chartjs-size-monitor-expand,
+.chartjs-size-monitor-shrink {
+	position: absolute;
+	direction: ltr;
+	left: 0;
+	top: 0;
+	right: 0;
+	bottom: 0;
+	overflow: hidden;
+	pointer-events: none;
+	visibility: hidden;
+	z-index: -1;
+}
+
+.chartjs-size-monitor-expand > div {
+	position: absolute;
+	width: 1000000px;
+	height: 1000000px;
+	left: 0;
+	top: 0;
+}
+
+.chartjs-size-monitor-shrink > div {
+	position: absolute;
+	width: 200%;
+	height: 200%;
+	left: 0;
+	top: 0;
+}

webInterface/Files.js

@@ -0,0 +1,44 @@
+// Thanks https://www.html5rocks.com/en/tutorials/file/dndfiles/
+function handleFileSelect(evt)
+{
+	var files = evt.target.files;  // FileList object
+
+	// files is a FileList of File objects. List some properties.
+	var output = [];
+	for (var i = 0, file; file = files[i]; i++)
+	{
+		/* output.push(
+		   '<li><strong>', escape(file.name), '</strong> (', file.type || 'n/a', ') - ', file.size,
+		   ' bytes, last modified: ',
+		   file.lastModifiedDate ? file.lastModifiedDate.toLocaleDateString() : 'n/a',
+		   !file.type.match('text.csv') ? ' (unsupported format)' : ' (CSV supported)', '</li>');
+		 */
+		var reader = new FileReader();
+		reader.onload = function() {
+			var transactionTable = document.getElementById('transactionTable');
+			transactionTable.innerHTML = '<thead></thead><tbody>';
+
+			var text = reader.result;
+			var lines = text.split('\n');
+			// Note: Skip row 0, which has header labels
+			for (var lineIndex = 1; lineIndex < lines.length; ++lineIndex)
+			{
+				line = lines[lineIndex];
+				var logEntry = makeTransactionLogEntryFromCSV(line);
+				/* console.log(logEntry); */
+				if (logEntry)
+				{
+					gTransactionData.push(logEntry);
+				}
+			}
+
+			processTransactionData();
+			updateVisualizations();
+			
+			transactionTable.innerHTML += '</tbody>';
+		};
+		reader.readAsText(file);
+	}
+}
+
+document.getElementById('filesUpload').addEventListener('change', handleFileSelect, false);

webInterface/TransactionData.js

@@ -0,0 +1,83 @@
+var gTransactionData = [];
+var gBalanceOverTime = [];
+var gTransactionsByCategory = {};
+
+// Recalculate charts now that transaction data changed
+function processTransactionData()
+{
+	gBalanceOverTime = [];
+	for (var i = 0; i < gTransactionData.length; ++i)
+	{
+		gBalanceOverTime.push({x: gTransactionData[i].date, y: gTransactionData[i].balance});
+
+		// Separate by category
+		if (gTransactionData[i].userCategories) {
+			for (var categoryIndex = 0; categoryIndex < gTransactionData[i].userCategories.length; ++categoryIndex) {
+				categoryName = gTransactionData[i].userCategories[categoryIndex];
+				if (categoryName in gTransactionsByCategory) {
+					gTransactionsByCategory[categoryName].push(gTransactionData[i]);
+				}
+				else {
+					gTransactionsByCategory[categoryName] = [gTransactionData[i]];
+				}
+			}
+		}
+	}
+}
+
+let dateRegex = /(.*)\/(.*)\/(.*)/
+
+// Assume format account,date,amount,balance,category,description,memo,notes\r
+function makeTransactionLogEntryFromCSV(csvLine)
+{
+	splitLine = csvLine.trim().split(',');
+	if (splitLine.length != 8)
+	{
+		console.log('Error: CSV line has unexpected formatting: \n' + csvLine);
+		return null;
+	}
+
+	dateMatch = splitLine[1].match(dateRegex);
+
+	var newEntry = {
+		account: splitLine[0],
+		// E.g. 12/17/2019
+		// Month is zero indexed in JS
+		date: new Date(dateMatch[3], dateMatch[1] - 1, dateMatch[2], 1, 1, 1, 1),
+		amount: splitLine[2],
+		balance: parseFloat(splitLine[3].replace("$", "")),
+		bankCategory: splitLine[4],
+		description: splitLine[5],
+		memo: splitLine[6],
+		notes: splitLine[7],
+		userCategories: []
+	};
+
+	categorizeEntry(newEntry);
+
+	return newEntry;
+}
+
+function addUserCategory(entry, newCategory) {
+	if (entry.userCategories.indexOf(newCategory) === -1) {
+		entry.userCategories.push(newCategory);
+	}
+}
+
+
+function categorizeEntry(entry)
+{
+	// These are provided by my bank. Not sure I'm happy they're analyzing my transactions... :(
+	if (entry.bankCategory == 'DiningOut') {
+		addUserCategory(entry, 'Food');
+	}
+	else if (entry.bankCategory == 'Travel') {
+		addUserCategory(entry, 'Travel');
+	}
+	else if (entry.bankCategory == 'Entertainment') {
+		addUserCategory(entry, 'Entertainment');
+	}
+	else if (entry.bankCategory == 'Automobile') {
+		addUserCategory(entry, 'Gas');
+	}
+}

webInterface/Upload.html

@@ -0,0 +1,25 @@
+<html>
+	<head>
+		<title>Upload Transactions</title>
+
+		<meta charset="utf-8">
+		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+		<!-- For mobile: set scale to native -->
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+
+		<link rel="stylesheet" type="text/css" href="/webInterfaceNoAuth/index.css">
+	</head>
+	<body>
+		<h1>Upload Transactions</h1>
+		
+		<a href="/">Back to Homepage</a><br /><br />
+		
+		<p>Lazy Budget cannot access your bank account automatically.
+			If you want this functionality, I recommend using <a href="https://www.mint.com/">Mint</a>, though you may not have your privacy respected with that service.</p>
+		<h2>Supported Formats</h2>
+		<p>Lazy Budget supports the following formats:</p>
+		<ul>
+			<li>CSV</li>
+		</ul>
+	</body>
+</html>

webInterface/Visualization.js

@@ -0,0 +1,37 @@
+// This script uses Chart.js
+// See https://www.chartjs.org/docs/latest/
+
+var ctx = document.getElementById('myChart').getContext('2d');
+// Bar graph
+/* var myChart = new Chart(ctx, {
+ * 	type: 'bar',
+ * 	data: {
+ * 		labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
+ * 		datasets: [{
+ * 			label: '# of Votes',
+ * 			data: [12, 19, 3, 5, 2, 3],
+ * 			backgroundColor: [
+ * 				'rgba(255, 99, 132, 0.2)', 'rgba(54, 162, 235, 0.2)', 'rgba(255, 206, 86, 0.2)',
+ * 				'rgba(75, 192, 192, 0.2)', 'rgba(153, 102, 255, 0.2)', 'rgba(255, 159, 64, 0.2)'
+ * 			],
+ * 			borderColor: [
+ * 				'rgba(255, 99, 132, 1)', 'rgba(54, 162, 235, 1)', 'rgba(255, 206, 86, 1)',
+ * 				'rgba(75, 192, 192, 1)', 'rgba(153, 102, 255, 1)', 'rgba(255, 159, 64, 1)'
+ * 			],
+ * 			borderWidth: 1
+ * 		}]
+ * 	},
+ * 	options: {scales: {yAxes: [{ticks: {beginAtZero: true}}]}}
+ * }); */
+
+var gBalanceOverTimeChart = new Chart(ctx, {
+	type: 'line',
+	data: {datasets: [{label: 'Balance over time', data: gBalanceOverTime, backgroundColor: 'rgba(200, 30, 30, 0.2)'}]},
+	options: {scales: {xAxes: [{type: 'time'}]}}
+});
+
+function updateVisualizations()
+{
+	gBalanceOverTimeChart.data.datasets[0].data = gBalanceOverTime;
+	gBalanceOverTimeChart.update();
+}

webInterface/index.html

@@ -0,0 +1,52 @@
+<html>
+	<head>
+		<title>Lazy Budget</title>
+
+		<meta charset="utf-8">
+		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+		<!-- For mobile: set scale to native -->
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		
+		<link rel="stylesheet" type="text/css" href="/webInterfaceNoAuth/index.css">
+	</head>
+	<body>
+		<h1>Lazy Budget</h1>
+
+		<script type="text/javascript" src="/webInterface/TransactionData.js"></script>
+		
+		<!--
+			 Visualization
+		-->
+		<!-- Note that this size will be changed automatically by Chart.js -->
+		<canvas id="myChart" width="400" height="400"></canvas><br />
+		<!-- Moment: Required by Chart for time support; https://momentjs.com/ -->
+		<script type="text/javascript" src="/webInterface/Moment.js"></script>
+		<!-- From https://github.com/chartjs/Chart.js -->
+		<script type="text/javascript" src="/webInterface/Chart.js"></script>
+		<!-- Code using Chart.js for Lazy Budget -->
+		<script type="text/javascript" src="/webInterface/Visualization.js"></script>
+
+		<!-- File upload -->
+		<input type="file" id="filesUpload" name="files[]" multiple />
+		<output id="output"></output>
+		<script type="text/javascript" src="/webInterface/Files.js"></script>
+		<!-- Raw data -->
+		<table id="transactionTable">
+		</table>
+		
+		<nav>
+			<a href="/webInterface/Upload.html">Upload Transactions</a><br />
+			<!-- <a href="/settings">Settings</a><br /><br /> -->
+
+			<!-- Less frequent options example -->
+			<!-- <a class="small" href="/unsupportedSubmissions">Content which failed to download</a><br />
+				 <br />
+				 <a class="small" href="/logout">Sign Out</a><br /> -->
+		</nav>
+		
+		<footer>
+			<a href="https://github.com/makuto/Lazy-Budget">See the code</a>
+			<a href="mailto:macoy@macoy.me">Give feedback</a>
+		</footer>
+	</body>
+</html>

webInterfaceNoAuth/index.css

@@ -94,7 +94,8 @@ tr,
 td,
 input,
 textarea,
-button {
+button,
+output {
     color: #95aec7;
 }