Adding lastfm and other bits

static/js/nowplaying.js

@@ -0,0 +1,77 @@
+const URL_BASE = "https://ws.audioscrobbler.com/2.0/?method=";
+const TRACK_METHOD = "user.getrecenttracks&user=";
+const KEY_PARAM = "&api_key="
+const MB_PARAM = "&mbid="
+const REQ_PARAMS = "&format=json&limit=1"
+
+function getDetail(item, requestType, key) {
+
+    const detailNode = document.getElementById(requestType);
+	if (Object.values(item).indexOf('mbid') > -1) {
+        const detailUrl = URL_BASE + requestType + ".getinfo" + KEY_PARAM + key + MB_PARAM + item["mbid"] + REQ_PARAMS
+        let detailRequest = null;
+        if (window.XMLHttpRequest) {
+            detailRequest = new XMLHttpRequest();
+        } else {
+            detailRequest = new ActiveXObject("Microsoft.XMLHTTP");
+        }
+
+        detailRequest.onreadystatechange = function () {
+            if (detailRequest.readyState === XMLHttpRequest.DONE) {
+                if (detailRequest.status === 200) {
+                    const response = JSON.parse(detailRequest.responseText);
+                    detailNode.setAttribute("href", response[requestType]["url"])
+                    detailNode.innerText = response[requestType]["name"]
+                }
+            }
+        }
+        detailRequest.open('GET', detailUrl, true);
+        detailRequest.send();
+    } else {
+        detailNode.setAttribute("href", "#")
+        detailNode.innerText = item["#text"]
+    }
+}
+
+
+function getLastTrack(user, key) {
+
+    const recentTracksUrl =
+        URL_BASE + TRACK_METHOD + user + KEY_PARAM + key + REQ_PARAMS
+
+    if (window.XMLHttpRequest) {
+        httpRequest = new XMLHttpRequest();
+    } else {
+        httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
+    }
+
+    httpRequest.onreadystatechange = function () {
+        if (httpRequest.readyState === XMLHttpRequest.DONE) {
+            const titleNode = document.getElementById("tracktitle");
+            const imageNode = document.getElementById("trackart");
+            const albumNode = document.getElementById("album")
+
+            if (httpRequest.status === 200) {
+
+                const response = JSON.parse(httpRequest.responseText);
+                const recentTrack = response.recenttracks.track[0];
+                console.log(recentTrack)
+                titleNode.innerText = recentTrack.name;
+                titleNode.setAttribute("href", recentTrack.url);
+                titleNode.setAttribute("title", recentTrack.name + " by " + recentTrack.artist["#text"]);
+                imageNode.setAttribute("src", recentTrack.image[3]["#text"]);
+
+                getDetail(recentTrack.album, "album", key)
+                getDetail(recentTrack.artist, "artist", key)
+
+            } else {
+                titleNode.innerText = "Please Try Again";
+                imageNode.setAttribute("src", "/images/OoO.png");
+                albumNode.innerText = "Last.fm"
+            }
+
+        }
+    }
+    httpRequest.open('GET', recentTracksUrl, true);
+    httpRequest.send();
+}