refactor background.js onMessage event listener

extension/background.js

@@ -11,10 +11,8 @@ let browserType = getBrowser();
 function getBrowser() {
     if (typeof chrome !== "undefined") {
         if (typeof browser !== "undefined") {
-            console.log("detected firefox");
             return browser;
         } else {
-            console.log("detected chrome");
             return chrome;
         }
     } else {
@@ -24,15 +22,40 @@ function getBrowser() {
 }
 
 
+// send get request to API backend
+async function sendGet(path, access) {
+
+    const url = `${access.url}:${access.port}/${path}`;
+    console.log("GET: " + url);
+
+    const rawResponse = await fetch(url, {
+        method: "GET",
+        headers: {
+            "Accept": "application/json",
+            "Content-Type": "application/json",
+            "Authorization": "Token " + access.apiKey,
+            "mode": "no-cors"
+        }
+    });
+
+    const content = await rawResponse.json();
+    return content;
+}
+
+
 // send post request to API backend
-async function sendPayload(url, token, payload) {
+async function sendPost(path, access, payload) {
+
+    const url = `${access.url}:${access.port}/${path}`;
+    console.log("POST: " + url);
+    console.log("POST: " + JSON.stringify(payload))
 
     const rawResponse = await fetch(url, {
         method: "POST",
         headers: {
             "Accept": "application/json",
             "Content-Type": "application/json",
-            "Authorization": token,
+            "Authorization": "Token " + access.apiKey,
             "mode": "no-cors"
         },
         body: JSON.stringify(payload)
@@ -43,56 +66,71 @@ async function sendPayload(url, token, payload) {
 }
 
 
-// read access storage and send
-function forwardRequest(payload) {
+// read access details from storage.local
+async function getAccess() {
 
-    console.log("running forwardRequest");
+    var storage = await browserType.storage.local.get("access");
 
-    function onGot(item) {
-        console.log(item.access);
-
-        const url = `${item.access.url}:${item.access.port}/api/download/`;
-        console.log(`sending to ${url}`);
-        const token = `Token ${item.access.apiKey}`;
-
-        sendPayload(url, token, payload).then(content => {
-            console.log(content);
-        })
-
-    };
-
-    function onError(error) {
-        console.local("failed to get access details");
-        console.log(`Error: ${error}`);
-    };
-
-    browserType.storage.local.get("access", function(result) {
-        onGot(result)
-    });
+    return storage.access
 
 }
 
-// listen for messages
-browserType.runtime.onMessage.addListener(
-    function(request, sender, sendResponse) {
-        console.log("responding from background.js listener");
-        console.log(JSON.stringify(request));
 
-        if (request.youtube) {
-            browserType.storage.local.set(request, function() {
-                console.log("Stored history: " + JSON.stringify(request));
-            });
-        } else if (request.download) {
-            let payload = {
-                "data": [
-                    {
-                        "youtube_id": request.download["url"],
-                        "status": "pending",
-                    }
-                ]
+// send ping to server, return response
+async function verifyConnection() {
+
+    const path = "api/ping/";
+    let access = await getAccess();
+    let response = await sendGet(path, access)
+    console.log("verify connection: " + JSON.stringify(response));
+
+    return response
+}
+
+
+// store last youtube link
+function setYoutubeLink(data) {
+    browserType.storage.local.set(data, function() {
+        console.log("Stored history: " + JSON.stringify(data));
+    });
+}
+
+
+// send download task to server, return response
+async function downloadLink(toDownload) {
+
+    const path = "api/download/";
+    let payload = {
+        "data": [
+            {
+                "youtube_id": toDownload,
+                "status": "pending",
             }
-            console.log(payload);
-            forwardRequest(payload);
+        ]
+    }
+    let access = await getAccess();
+    let response = await sendPost(path, access, payload)
+
+    return response
+
+}
+
+
+// event listener for messages from script.js and popup.js
+browser.runtime.onMessage.addListener(
+    (data, sender) => {
+        console.log("message background.js listener: " + JSON.stringify(data))
+        if (data.verify === true) {
+            let response = verifyConnection()
+            return Promise.resolve(response);
+        } else if (data.youtube) {
+            setYoutubeLink(data)
+        } else if (data.download) {
+            let response = downloadLink(data.download.url)
+            return Promise.resolve(response);
         }
+
+        return false;
+        
     }
 );

extension/popup.js

@@ -8,10 +8,8 @@ let browserType = getBrowser();
 function getBrowser() {
     if (typeof chrome !== "undefined") {
         if (typeof browser !== "undefined") {
-            console.log("detected firefox");
             return browser;
         } else {
-            console.log("detected chrome");
             return chrome;
         }
     } else {
@@ -20,9 +18,9 @@ function getBrowser() {
     };
 }
 
+
 // store access details
 document.getElementById("save-login").addEventListener("click", function () {
-    console.log("save form");
     let toStore = {
         "access": {
             "url": document.getElementById("url").value,
@@ -30,20 +28,49 @@ document.getElementById("save-login").addEventListener("click", function () {
             "apiKey": document.getElementById("api-key").value
         }
     };
-    console.log(toStore);
     browserType.storage.local.set(toStore, function() {
         console.log("Stored connection details: " + JSON.stringify(toStore));
+        pingBackend();
     });
 })
 
 
+// verify connection status
+document.getElementById("status-icon").addEventListener("click", function() {
+    pingBackend();
+})
+
+
+// send ping message to TA backend
+function pingBackend() {
+
+    function handleResponse(message) {
+        if (message.response === "pong") {
+            setStatusIcon(true);
+            console.log("connection validated")
+        }
+    }
+    
+    function handleError(error) {
+        console.log(`Error: ${error}`);
+        setStatusIcon(false);
+    }
+
+    console.log("ping TA server")
+    let sending = browserType.runtime.sendMessage({"verify": true});
+    sending.then(handleResponse, handleError);
+
+}
+
+
+// change status icon based on connection status
 function setStatusIcon(connected) {
 
     let statusIcon = document.getElementById("status-icon")
     if (connected == true) {
-        console.log("connected");
+        statusIcon.innerHTML = "☑";
+        statusIcon.style.color = "green";
     } else {
-        console.log("not connected");
         statusIcon.innerHTML = "☒";
         statusIcon.style.color = "red";
     }
@@ -51,21 +78,43 @@ function setStatusIcon(connected) {
 }
 
 
+// download link
+document.getElementById("download").addEventListener("click", function () {
+
+    let button = document.getElementById("downloadButton");
+    let payload = {
+        "download": {
+            "url": button.getAttribute("data-id")
+        }
+    };
+
+    function handleResponse(message) {
+        console.log("popup.js response: " + JSON.stringify(message));
+    }
+    
+    function handleError(error) {
+        console.log(`Error: ${error}`);
+    }
+
+    let sending = browserType.runtime.sendMessage(payload);
+    sending.then(handleResponse, handleError)
+
+})
+
+
 // fill in form
 document.addEventListener("DOMContentLoaded", async () => {
 
-    console.log("executing dom loader");
-
     function onGot(item) {
         if (!item.access) {
             console.log("no access details found");
             setStatusIcon(false);
             return
         }
-        console.log(item.access);
         document.getElementById("url").value = item.access.url;
         document.getElementById("port").value = item.access.port;
         document.getElementById("api-key").value = item.access.apiKey;
+        pingBackend();
     };
     
     function onError(error) {
@@ -83,7 +132,7 @@ document.addEventListener("DOMContentLoaded", async () => {
 })
 
 function downlodButton(result) {
-    console.log("running build dl button");
+
     let download = document.getElementById("download");
     let title = document.createElement("p");
     title.innerText = result.youtube.title;
@@ -93,17 +142,8 @@ function downlodButton(result) {
     button.id = "downloadButton";
     button.setAttribute("data-id", result.youtube.url);
 
-    button.addEventListener("click", function () {
-        console.log("send download message");
-        let payload = {
-            "download": {
-                "url": result.youtube.url
-            }
-        };
-        browserType.runtime.sendMessage(payload);
-    });
-
     download.appendChild(title);
     download.appendChild(button);
     download.appendChild(document.createElement("hr"));
+
 }

extension/script.js

@@ -2,8 +2,6 @@
 content script running on youtube.com
 */
 
-console.log("running script.js");
-
 let browserType = getBrowser();
 
 
@@ -25,7 +23,6 @@ function getBrowser() {
 
 
 function sendUrl() {
-    console.log("run sendUrl from script.js");
 
     let payload = {
         "youtube": {
@@ -33,7 +30,7 @@ function sendUrl() {
             "title": document.title
         }
     }
-    console.log(JSON.stringify(payload));
+    console.log("youtube link: " + JSON.stringify(payload));
     browserType.runtime.sendMessage(payload, function(response) {
         console.log(response.farewell);
     });
@@ -42,7 +39,6 @@ function sendUrl() {
 
 
 document.addEventListener("yt-navigate-finish", function (event) {
-    console.log("running setimeout")
     setTimeout(function(){
         sendUrl();
         return false;