Fixed: issue #92 - testing for input/output nodes - if none found, the export is not possible

Fixed: issue #56 - import and cut, copy & paste works fine, I added a routine which increments the numbers at the end of the names, IDs will be generated automaticcaly, if the ID already exists, and the appropriate name will be increased (e.g. "mixerRight" -> "mixerRight0", "input3" -> "input4" etc.)

gui/index.html

 <div id="node-dialog-confirm-deploy" class="hide">
 	<form class="form-horizontal">
 		<div id="node-dialog-confirm-deploy-config" style="text-align: center; padding-top: 30px;">
-		 Some of the nodes are not properly configured. Are you sure you want to deploy?
+			Some of the nodes are not properly configured. Are you sure you want to deploy?
 		</div>
 		<div id="node-dialog-confirm-deploy-unknown" style="text-align: center; padding-top: 10px;">
-		 The workspace contains some unknown node types:
-		 <ul style="width: 300px; margin: auto; text-align: left;" id="node-dialog-confirm-deploy-unknown-list"></ul>
-		 Are you sure you want to deploy?
+			The workspace contains some unknown node types:
+			<ul style="width: 300px; margin: auto; text-align: left;" id="node-dialog-confirm-deploy-unknown-list"></ul>
+			Are you sure you want to deploy?
+		</div>
+	</form>
+</div>
+
+<div id="node-dialog-error-deploy" class="hide">
+	<form class="form-horizontal">
+		<div id="node-dialog-error-deploy-noio" style="text-align: center; padding-top: 10px;">
+			<p>The workspace contains no input/output nodes!</p>
+			<p>You need an input or an output to export the data!</p>
+			<p>Without such a input/output function the exported
+			code will not run properly!</p>
 		</div>
 	</form>
 </div>

gui/red/main.js

 	function save(force) {
 		RED.storage.update();
 
-		if (1) {
+		if (RED.nodes.hasIO()) {
 			var nns = RED.nodes.createCompleteNodeSet();
 			// sort by horizontal position, plus slight vertical position,
 			// for well defined update order that follows signal flow
 			$( "#dialog" ).dialog("option","title","Export to Arduino").dialog( "open" );
 			});
 			//RED.view.dirty(false);
+		} else {
+			$( "#node-dialog-error-deploy" ).dialog({
+				title: "Error exporting data to Arduino IDE",
+				modal: true,
+				autoOpen: false,
+				width: 410,
+				height: 245,
+				buttons: [{
+					text: "Ok",
+					click: function() {
+						$( this ).dialog( "close" );
+					}
+				}]
+			}).dialog("open");
 		}
 	}
 

gui/red/nodes.js

 		return name;
 	}
 
+	function getUniqueName(n) {
+		var newName = n.name;
+		if (typeof newName === "string") {
+			var parts = newName.match(/(\d*)$/);
+			var count = 0;
+			var base = newName;
+			if (parts) {
+				count = isNaN(parseInt(parts[1])) ? 0 : parseInt(parts[1]);
+				base = newName.replace(count, "");
+			}
+			while (RED.nodes.namedNode(newName) !== null) {
+				count += 1;
+				newName = base + count;
+			}
+		}
+		return newName;
+	}
+
 	function getType(type) {
 		return node_defs[type];
 	}
 		configNodes[c.id] = c;
 	}
 */
+	function checkForIO() {
+		var hasIO = false;
+		RED.nodes.eachNode(function (node) {
+
+			if ((node._def.category === "input-function") ||
+				(node._def.category === "output-function")) {
+				hasIO = true;
+			}
+		});
+		return hasIO;
+	}
 
 	function getNode(id) {
 		if (id in configNodes) {
 		return null;
 	}
 
+	function getNodeByName(name) {
+		for (var n in nodes) {
+			if (nodes[n].name == name) {
+				return nodes[n];
+			}
+		}
+		return null;
+	}
+
 	function removeNode(id) {
 		var removedLinks = [];
 		if (id in configNodes) {
 	function cppToJSON(newNodesStr) {
 
 		var newNodes = [];
-		var skipped = [];
 		var cables = [];
 		var words = [];
-		var lastY = 0;
 
 		const NODE_COMMENT	= "//";
 		const NODE_AC		= "AudioConnection";
 					var newY = parseInt(coords ? coords[1] : 0);
 					//newY = newY == 0 ? lastY + (dH * n) + gap : newY;
 					//lastY = Math.max(lastY, newY);
-					var node = new Object({"order": n, "id": name, "type": type, "x": newX, "y": newY, "z": 0, "wires": []});
-					// first solution: skip existing id
+					var node = new Object({"order": n, "id": name, "name": name, "type": type, "x": newX, "y": newY, "z": 0, "wires": []});
+					// netter solution: create new id
 					if (RED.nodes.node(node.id) !== null) {
-						skipped.push(node.id);
-					} else {
-						newNodes.push(node);
+						node.z = RED.view.getWorkspace();
+						node.id = getID();
+						node.name = getUniqueName(node);
 					}
+					newNodes.push(node);
 				}
 			}
 		};
 
 				// ... and it has to end with an semikolon ...
 				var pattSe = new RegExp(/.*;$/);
-				if (pattSe.test(line)) {
+				var pattCoord = new RegExp(/.*\/\/xy=\d+,\d+$/);
+				if (pattSe.test(line) || pattCoord.test(line)) {
 					var word = parts[1].trim();
 					if (words.indexOf(word) >= 0) {
 						parseLine(line);
 
 		return {
 			count: newNodes.length,
-			skipped: skipped.length,
 			data: newNodes.length > 0 ? JSON.stringify(newNodes) : ""
 		};
 	}
 							}
 						}
 
+						node.name = getUniqueName(n);
+
 						addNode(node);
 						RED.editor.validateNode(node);
 						node_map[n.id] = node;
 			}
 		},
 		node: getNode,
+		namedNode: getNodeByName,
 		cppToJSON: cppToJSON,
 		import: importNodes,
 		refreshValidation: refreshValidation,
 		createCompleteNodeSet: createCompleteNodeSet,
 		id: getID,
 		cppName: createUniqueCppName,
+		hasIO: checkForIO,
 		nodes: nodes, // TODO: exposed for d3 vis
 		links: links  // TODO: exposed for d3 vis
 	};

gui/red/ui/view.js

 
 		if ($("#node-input-arduino").prop('checked') === true) {
 			var nodesJSON = RED.nodes.cppToJSON(newNodesStr);
-			if (nodesJSON.count <= 0 || nodesJSON.skipped > 0) {
-				var note = "No (or not all) nodes imported, because some IDs existed already!";
+			if (nodesJSON.count <= 0) {
+				var note = "No nodes imported!";
 				RED.notify("<strong>Note</strong>: " + note, "warning");
 			}