Add lastfm roast feature with LLM

util/lastfm/roast.js

@@ -0,0 +1,37 @@
+require("dotenv").config();
+module.exports = async function(topArtists, topAlbums) {
+    let prompt = "Roast the top 10 artists albums the user has listened to most for the last 365 days. Be mean. Be concise and create 3 small paragraphs in total. DO NOT CREATE ONE PARAGRAPH PER ARTIST OR ALBUM.\n"
+
+    prompt += "Top artists and their playcounts:\n"
+    topArtists.forEach(topArtist => {
+        prompt += `${topArtist.name} (${topArtist.playcount})\n`
+    });
+    
+    prompt += "Top albums and their playcounts:\n"
+    topAlbums.forEach(topAlbum => {
+        prompt += `${topAlbum.artist} - ${topAlbum.name} (${topAlbum.playcount})\n`
+    })
+    let answer = "";
+    await fetch(`https://openrouter.ai/api/v1/chat/completions`, {
+        method: `POST`,
+        headers: {
+            "Authorization": `Bearer ${process.env.OPENROUTER_API_KEY}`,
+            "Content-Type": `application/json`
+        },
+        body: JSON.stringify({
+            "model": `deepseek/deepseek-chat-v3-0324:free`,
+            "messages": [
+                {
+                    "role": `system`,
+                    "content": prompt
+                }
+            ],
+            "max_tokens": 400
+        })
+    }).then(response => response.json()).then(data => {
+        answer = data.choices[0].message.content;
+    }).catch(error => {
+        console.error(error);
+    });
+    return answer;
+}