Nahrát soubory do „/“

content.js

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+const TARGET_URL = "http://localhost:8080/endpoint";
+let lastSentSong = "";
+
+function extractAndSendSong() {
+  // Najdeme widget "Now Playing" v levém dolním rohu Spotify
+  const trackInfo = document.querySelector('[data-testid="now-playing-widget"]');
+  
+  if (trackInfo) {
+    const links = trackInfo.querySelectorAll('a');
+    const songTitle = links[0] ? links[0].innerText : null;
+    const artistName = links[1] ? links[1].innerText : "Unknown Artist";
+    
+    if (songTitle) {
+      const currentTrackString = `${artistName} - ${songTitle}`;
+
+      // Odesíláme pouze pokud se písnička změnila, abychom zbytečně nezatěžovali server
+      if (currentTrackString !== lastSentSong) {
+        lastSentSong = currentTrackString;
+        
+        console.log("Odesílám skladbu:", currentTrackString);
+
+        fetch(TARGET_URL, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify({
+            artist: artistName,
+            title: songTitle,
+            timestamp: new Date().toISOString()
+          })
+        }).catch(err => {
+          console.error("Chyba při odesílání:", err);
+        });
+      }
+    }
+  }
+}
+
+// Sledujeme změny na stránce, protože Spotify funguje jako Single Page Application
+const observer = new MutationObserver(() => {
+  extractAndSendSong();
+});
+
+observer.observe(document.body, { childList: true, subtree: true });

manifest.json

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+{
+  "manifest_version": 3,
+  "name": "Spotify IP Sender",
+  "version": "1.0",
+  "permissions": [
+    "activeTab",
+    "storage"
+  ],
+  "host_permissions": [
+    "https://open.spotify.com/*",
+    "http://*/*",
+    "https://*/*"
+  ],
+  "content_scripts": [
+    {
+      "matches": ["https://open.spotify.com/*"],
+      "js": ["content.js"]
+    }
+  ]
+}