From 9dc0f1f9894e99c4cf762715107c0f5196174cf6 Mon Sep 17 00:00:00 2001
From: Silver Kuusik <silver.kuusik@gmail.com>
Date: Wed, 15 Aug 2018 19:58:29 +0200
Subject: [PATCH] add code processing adn block highlight

---
 assets/js/main.js | 64 +++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 11 deletions(-)

diff --git a/assets/js/main.js b/assets/js/main.js
index 5185f4f..b4abaec 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -1,5 +1,5 @@
 // The local/remote server URL
-//var ROBOT_SERVER = '10.42.0.1';
+//var ROBOT_SERVER = '192.168.2.1:80';
 var ROBOT_SERVER = 'ws.achex.ca:4010';
 
 var workspace;
@@ -113,6 +113,50 @@ window.addEventListener('load', function() {
         }
     });
 
+    var lines = [];
+    var foundTrue = false;
+    // Function to process code and highlight blocks and lines
+    function processCode(index, highlight) {
+        // When all lines are already processed
+        if (lines.length == 0) return;
+        // Split into code and block ID
+        var temp = lines[index].split(';;');
+        var code = temp[0];
+        // Default timeout for processing the next line
+        var timeout = 100;
+        var isCondition = /(if|elif|else)/.test(code);
+        // When it is a condition line
+        if (isCondition) {
+            if (foundTrue) {
+                // Start processing the code from the beginning again
+                index = -1;
+                foundTrue = false;
+            } else if (/opponent/.test(code)) {
+                foundTrue = (sumorobot.sensors['opponent'] < 40.0);
+            } else if (/LEFT/.test(code)) {
+                foundTrue = (sumorobot.sensors['line_left'] > 2000);
+            } else if (/RIGHT/.test(code)) {
+                foundTrue = (sumorobot.sensors['line_right'] > 2000);
+            } else {
+                foundTrue = true;
+            }
+        }
+        // Some lines don't correspond to any block
+        if (temp[1] && index != -1 && ((!isCondition && foundTrue) || isCondition)) {
+            // When sleep function, we get the timeout value from the function
+            if (/\d/.test(code)) {
+                timeout = parseInt(code.replace(/[a-z\.()]/g, ''));
+            }
+            // Block ID should always be 20 symbols long
+            var blockId = temp[1].substring(0, 20);
+            // Highlight the block
+            workspace.highlightBlock(blockId);
+        }
+        // Set an timeout for processing the next line
+        index = (index + 1) % lines.length
+        setTimeout(function() { processCode(index) }, timeout);
+    }
+
     // Start button listener
     $('.btn-start').click(function() {
         // When we are in Python coding mode
@@ -125,21 +169,19 @@ window.addEventListener('load', function() {
             parsedCode = sumorobot.getBlocklyCode().replace(/;;.{20}/g, '');
         }
         // Escape the qoutes, replace new lines and send the code
-        sumorobot.send('code', parsedCode.replace(/"/g, '\\"').replace(/\n/g, ';;'));
-        // TODO: Highlight the blocks and lines
-        /*var lines = sumorobot.getBlocklyCode().replace(/ /g, '').split('\n');
-        // Process code lines
-        for (i in lines) {
-            if (lines[i]) {
-                console.log(lines[i].split(';;'));
-            }
-        }*/
+        //sumorobot.send('code', parsedCode.replace(/"/g, '\\"').replace(/\n/g, ';;'));
+        // Split into lines of code and filter empty lines
+        lines = sumorobot.getBlocklyCode().split('\n').filter(Boolean);
+        // Process the code starting from the first line
+        processCode(0);
     });
 
     // Stop button listener
     $('.btn-stop').click(function() {
         sumorobot.send('stop');
-        // TODO: Stop highlighting blocks and lines
+        // Stop highlighting blocks and lines
+        lines = [];
+        workspace.highlightBlock('');
     });
 
     // Enter (return) keypress listener on robot ID field