add oeis debug logging

Author: NullDev

src/commands/user/oeis.js

@@ -28,11 +28,30 @@ export default {
         const seq = interaction.options.get("sequence")?.value;
         if (!seq) return await interaction.editReply({ content: await __("errors.invalid_argument")(interaction.guildId) });
 
-        const f = await fetch(`https://oeis.org/search?q=${seq}&fmt=json`);
+        const url = `https://oeis.org/search?q=${seq}&fmt=json`;
+        console.log(`[OEIS] Fetching: ${url}`);
 
-        console.log(f);
+        const f = await fetch(url, {
+            headers: {
+                "User-Agent": "Arithmetica-Bot/1.0 (Discord Bot; +https://github.com/NullDev/Arithmetica-Bot)",
+                Accept: "application/json",
+            },
+        });
+
+        console.log(`[OEIS] Response status: ${f.status}`);
+        console.log("[OEIS] Response headers:", Object.fromEntries(f.headers.entries()));
+
+        const responseText = await f.text();
+        console.log("[OEIS] Response body (first 500 chars):", responseText.substring(0, 500));
 
-        const results = await f.json();
+        let results;
+        try {
+            results = JSON.parse(responseText);
+        }
+        catch {
+            console.error("[OEIS] Failed to parse JSON. Full response body:", responseText);
+            throw new Error(`OEIS API returned non-JSON response. Status: ${f.status}. Check logs for full HTML response.`);
+        }
 
         if (!results || !results.length) return await interaction.editReply({ content: "¯\\_(ツ)_/¯" });