Total rewrite of how switching works

Add compatibility with most search engine tabs

.gitignore

@@ -1,2 +1,2 @@
 output
-output\*
+output\*.*

scripts/PackXPI.ps1

@@ -3,4 +3,4 @@ $compress = @{
   CompressionLevel = "NoCompression"
   DestinationPath = "output\SearchSwitch.zip"
 }
-Compress-Archive @compress
+Compress-Archive @compress -Force

v2/background.js

@@ -1,54 +1,113 @@
+const bingSearch = "https://www.bing.com/search?"
+const bingImageSearch = "https://www.bing.com/images/search?"
+const bingVideoSearch = "https://www.bing.com/videos/search?"
+const bingMapSearch = "https://www.bing.com/maps?"
+const bingNewsSearch = "https://www.bing.com/news/search?"
+const bingShoppingSearch = "https://www.bing.com/shop?"
+
+const googleSearch = "https://www.google.com/search?"
+const googleImageSearchSubstring = "&tbm=isch"
+const googleVideoSearchSubstring = "&tbm=vid"
+const googleMapsSearch = "https://www.google.com/maps?"
+const googleMapsSearchRewrite = "https://www.google.com/maps"
+const googleNewsSearchSubstring = "&tbm=nws"
+const googleShoppingSearchSubstring = "&tbm=shop"
+
+const debug = false
+
 function switchSearch(tab) {
-    const bingSearch = "https://www.bing.com/search?";
-    const googleSearch = "https://www.google.com/search?";
+    const url = tab.url
 
-    const bingImageSearch = "https://www.bing.com/images/search?"
-    const googleImageSearchSubstring = "&tbm=isch";
-    const url = tab.url;
-
-    let newURL;
-    let removeEngine;
-    let searchStart;
-    let searchEnd;
-    let justSearch;
     //Handle bing searches
-    //This is the way it should be done, TODO: Refactor rest of methods to be like this
     if (url.substring(0, bingSearch.length) === bingSearch) {
-        removeEngine = url.slice(bingSearch.length);
-        searchStart = removeEngine.indexOf('&q=') + 3;
-        justSearch = removeEngine.substring(searchStart);
-        searchEnd = justSearch.indexOf('&');
-        justSearch = justSearch.substring(0, searchEnd);
-
-        newURL = googleSearch + 'q=' +justSearch + '&';
-
-    }
-	//Handle Google image searches
-	else if (url.indexOf(googleImageSearchSubstring) > googleSearch.length) {
-		removeEngine = url.slice(googleSearch.length);
-		searchEnd = removeEngine.indexOf('&');
-		justSearch = removeEngine.substring(0, searchEnd);
-
-		newURL = bingImageSearch + justSearch + '&';
-	}
-    //Handle Google searches
-    else if (url.substring(0, googleSearch.length) === googleSearch) {
-        removeEngine = url.slice(googleSearch.length);
-        searchEnd = removeEngine.indexOf('&');
-        justSearch = removeEngine.substring(0, searchEnd);
-
-        newURL = bingSearch + justSearch + '&';
+        return getSwitchedSearch(bingSearch, googleSearch, url)
     }
     //Handle bing image searches
     else if (url.substring(0, bingImageSearch.length) === bingImageSearch) {
-        removeEngine = url.slice(bingImageSearch.length)
-        searchEnd = removeEngine.indexOf('&');
-        justSearch = removeEngine.substring(0, searchEnd);
-
-        newURL = googleSearch + justSearch + googleImageSearchSubstring + '&';
+        return getSwitchedGoogleSearch(bingImageSearch, googleSearch, googleImageSearchSubstring, url)
+    }
+    //Handle bing video searches
+    else if (url.substring(0, bingVideoSearch.length) === bingVideoSearch){
+        return getSwitchedGoogleSearch(bingVideoSearch, googleSearch, googleVideoSearchSubstring, url)
+    }
+    //Handle bing maps searches
+    else if (url.substring(0, bingMapSearch.length) === bingMapSearch){
+        return getSwitchedSearch(bingMapSearch, googleMapsSearch, url)
+    }
+    //Handle bing news searches
+    else if (url.substring(0, bingNewsSearch.length) === bingNewsSearch){
+        return getSwitchedGoogleSearch(bingNewsSearch, googleSearch, googleNewsSearchSubstring, url)
+    }
+    //Handle bing shopping searches
+    else if (url.substring(0, bingShoppingSearch.length) === bingShoppingSearch){
+        return getSwitchedGoogleSearch(bingShoppingSearch, googleSearch, googleShoppingSearchSubstring, url)
     }
 
-    return newURL;
+    //--------------------------------------
+
+	//Handle Google image searches
+	else if (url.indexOf(googleImageSearchSubstring) > googleSearch.length) {
+        return getSwitchedSearch(googleSearch, bingImageSearch, url)
+	}
+    //Handle google video searches
+    else if (url.indexOf(googleVideoSearchSubstring) > googleSearch.length) {
+        return getSwitchedSearch(googleSearch, bingVideoSearch, url)
+    }
+    //Handle Google Maps searches
+    //Needs two for url before and after rewrite
+    else if (url.substring(0, googleMapsSearch.length) === googleMapsSearch) {
+        return getSwitchedSearch(googleMapsSearch, bingMapSearch, url)
+    }
+    else if (url.substring(0, googleMapsSearchRewrite.length) === googleMapsSearchRewrite) {
+        return getSwitchedSearch(googleMapsSearchRewrite, bingMapSearch, url)
+    }
+    //Handle Google News searches
+    else if (url.indexOf(googleNewsSearchSubstring) > googleSearch.length) {
+        return getSwitchedSearch(googleSearch, bingNewsSearch, url)
+    }
+    //Handle Google shopping searches
+    else if (url.indexOf(googleShoppingSearchSubstring) > googleSearch.length) {
+        return getSwitchedSearch(googleSearch, bingShoppingSearch, url)
+    }
+    //Handle Google searches
+    else if (url.substring(0, googleSearch.length) === googleSearch) {
+        return getSwitchedSearch(googleSearch, bingSearch, url)
+    }
+}
+
+function getSwitchedSearch(currentEngine, newEngine,  url) {
+    let querySelector = '&q='
+    let separator = '&'
+    //google maps uses different url scheme
+    if (currentEngine === googleMapsSearchRewrite) {
+        querySelector = "/search/"
+        separator = '/'
+    }
+
+    let removeEngine = url.slice(currentEngine.length)
+    let searchStart = removeEngine.indexOf(querySelector) + querySelector.length
+    let justSearch = removeEngine.substring(searchStart)
+    let searchEnd = justSearch.indexOf(separator)
+    if (searchEnd > 0) {
+        justSearch = justSearch.substring(0, searchEnd)
+    }
+    if (debug) {
+        console.debug("------------------ SearchSwitch Diagnostics ------------------")
+        console.debug("Current Engine: ", currentEngine)
+        console.debug("Next Engine: ", newEngine)
+        console.debug("URL: ", url)
+        console.debug("Search query selector: ", querySelector)
+        console.debug("Raw Search term with engine removed: ", removeEngine)
+        console.debug("Index of the start of the real search: ", searchStart)
+        console.debug("Index of the end of the real search: ", searchEnd)
+        console.debug("The text that is just the raw search: ", justSearch)
+        console.debug("--------------------------------------------------------------")
+    }
+    return newEngine + 'q=' + justSearch
+}
+function getSwitchedGoogleSearch(currentEngine, newEngine, substring, url) {
+    let beforeSubstring = getSwitchedSearch(currentEngine, newEngine, url)
+    return beforeSubstring + substring
 }
 
 chrome.browserAction.onClicked.addListener((tab) => {