Tracks updates from a file and reports if changes occur

inventory_monitor.js

@@ -0,0 +1,38 @@
+const fs = require('fs');
+
+console.log("Hello!")
+
+finalData=[]
+firstLoad=true
+
+function update(){
+    changed=false
+    fs.readFile("C:\\Users\\sigon\\Documents\\memory",
+    (err,data)=>{
+        var fileContents = data.toString().split("\n");
+        for (i=0;i<fileContents.length;i++){
+            line=fileContents[i]
+            item=line.split(" ")
+            itemID=item[1]
+            itemAmt=item[0]
+            itemHQ=item[2]
+            //console.log(itemID+" x"+itemAmt+" "+(itemHQ?"":"HQ"))
+            if(firstLoad){
+                finalData=[{"id":itemID,"amt":itemAmt,"hq":itemHQ},...finalData]
+            }else
+            if (finalData[i]!==undefined){
+                if (finalData[i].id!==itemID||finalData[i].amt!==itemAmt||finalData[i].hq!==itemHQ){
+                    finalData[i]={"id":itemID,"amt":itemAmt,"hq":itemHQ}
+                    changed=true;
+                }
+            }
+        }
+        if (changed){
+            console.log("Changes occurred...")
+        }
+        firstLoad=false
+        setTimeout(update,1000)
+    })
+}
+
+update()