Fixed IDE warnings

Including:
- implicit type coersions in ==
- undeclared variables
- let which could be const

1 files changed, 33 insertions, 43 deletions

diff --git a/web/client.html b/web/client.html
index 87ca51a..34a5b54 100644
--- a/web/client.html
+++ b/web/client.html
@@ -1,29 +1,16 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>WRMS</title>
 
     <style>
-      .vote {
-        display: inline-block;
-        cursor: pointer;
-        color: #687074
-      } 
-
-      .vote.on {
-        color: #f48024
-      }
-
-      .searchResult:hover {
-        background-color: #999;
-      }
     </style>
 
     <script>
       /*
-      @licstart  The following is the entire license notice for the 
+      @licstart  The following is the entire license notice for the
       JavaScript code in this page.
 
       Copyright (C) 2022  Florian Fischer
@@ -40,7 +27,7 @@
       may distribute non-source (e.g., minimized or compacted) forms of
       that code without the copy of the GNU GPL normally required by
       section 4, provided you include this license notice and a URL
-      through which recipients can access the Corresponding Source.   
+      through which recipients can access the Corresponding Source.
 
 
       @licend  The above is the entire license notice
@@ -49,25 +36,25 @@
     </script>
 
     <script>
-      let HttpClient = function() {
+      const HttpClient = function() {
         function newRequest(callback) {
-          let request = new XMLHttpRequest();
-          request.onreadystatechange = function() { 
-            if (request.readyState == 4 && request.status == 200)
+          const request = new XMLHttpRequest();
+          request.onreadystatechange = function() {
+            if (request.readyState === 4 && request.status === 200)
               callback(request.responseText);
           }
           return request;
         }
 
         this.get = function(url, callback) {
-          let request = newRequest(callback);
-          request.open("GET", url, true);            
+          const request = newRequest(callback);
+          request.open("GET", url, true);
           request.send(null);
         }
 
         this.post = function(url, data, callback) {
-          let request = newRequest(callback);
-          request.open("POST", url, true);            
+          const request = newRequest(callback);
+          request.open("POST", url, true);
           request.send(data);
         }
       }
@@ -83,24 +70,24 @@
       }
 
       function renderPlaylist() {
-        playlist = document.getElementById("playlist");
+        const playlist = document.getElementById("playlist");
         playlist.innerHTML = "";
 
         songs.sort(function(a, b) {return b.weight - a.weight});
 
         for (const song of songs) {
-          let listItem = document.createElement("li");
+          const listItem = document.createElement("li");
 
           const btnHTML = "<svg width='36' height='36'><path d='M2 10h32L18 26 2 10z' fill='currentColor'></path></svg>";
-          let upvoteBtn = document.createElement("span");
-          let downvoteBtn = document.createElement("span");
+          const upvoteBtn = document.createElement("span");
+          const downvoteBtn = document.createElement("span");
 
           upvoteBtn.innerHTML = downvoteBtn.innerHTML = btnHTML;
           upvoteBtn.className = downvoteBtn.className = "vote";
           upvoteBtn.style.transform = 'rotate(180deg)';
 
           if (votes.has(song.uri)) {
-            if (votes.get(song.uri) == "up")
+            if (votes.get(song.uri) === "up")
               upvoteBtn.classList.toggle("on");
             else
               downvoteBtn.classList.toggle("on");
@@ -109,10 +96,10 @@
           function onVote(event) {
             const btn = event.currentTarget;
             btn.classList.toggle("on");
-            const isUpvoteBtn = btn == upvoteBtn;
+            const isUpvoteBtn = btn === upvoteBtn;
             const isVote = btn.classList.contains("on");
-            let url = "";
-            
+
+            let url;
             if (isVote) {
               if (isUpvoteBtn) {
                 downvoteBtn.classList.remove("on")
@@ -159,7 +146,7 @@
 
       function handleUpdate(updated) {
         for (const updated_song of updated) {
-          songs[songs.findIndex(function(s) {return s.uri == updated_song.uri})] = updated_song;
+          songs[songs.findIndex(function(s) {return s.uri === updated_song.uri})] = updated_song;
         }
         renderPlaylist();
       }
@@ -176,9 +163,12 @@
       function handlePlay(currentSong) {
         document.getElementById("ppbutton").innerHTML = 'Pause';
 
-        idx = -1;
-        songs.forEach(function(s, i, a) { if (s.uri == currentSong.uri) idx = i; });
-        if (idx != -1) {
+        let idx = -1;
+        songs.forEach(function(song, index) {
+          if (song.uri === currentSong.uri)
+            idx = index;
+        });
+        if (idx !== -1) {
           songs.splice(idx, 1);
           renderPlaylist();
         }
@@ -190,13 +180,13 @@
         playing.appendChild(songLabel);
       }
 
-      let socket = new WebSocket("ws://localhost:8080/ws");
+      const socket = new WebSocket("ws://localhost:8080/ws");
       console.log("Attempting Connection...");
 
       socket.onopen = () => {
         console.log("Successfully Connected");
       };
-      
+
       socket.onclose = event => {
         console.log("Socket Closed Connection: ", event);
       };
@@ -242,17 +232,17 @@
       }
 
       function showSearchResults(responseText) {
-        response = JSON.parse(responseText)
+        const response = JSON.parse(responseText)
         if (!response)
           return
 
-        let searchResultsOverlay = document.getElementById("searchResultsOverlay");
+        const searchResultsOverlay = document.getElementById("searchResultsOverlay");
 
-        let searchResults = document.getElementById("searchResults");
+        const searchResults = document.getElementById("searchResults");
         // Clear search Results
         searchResults.innerHTML = "";
         for (const song of response.songs) {
-          let listItem = document.createElement("li");
+          const listItem = document.createElement("li");
           listItem.addEventListener("click", function() {
             addSong(song);
             searchResultsOverlay.style.display = "none";
@@ -279,7 +269,7 @@
     <h2>Add your song</h2>
     <div id="add">
       <form id="searchForm" onsubmit="return submitSearch()">
-        <input id="searchInput" name="pattern" type="text" value="Title/Artist/Album/...">
+        <label><input id="searchInput" name="pattern" type="text" value="Title/Artist/Album/..."></label>
         <button id="searchButton">Search</button>
       </form>
     </div>