Add automatic web search for current events queries

- Detect keywords like 'latest', 'news', 'current', '2026' etc
- Append :online suffix to model for web search + AI response
- Retry logic: if web search fails, fall back to regular response
- Increased timeout to 90s for web search queries
- Fixed typo in fallback error handling

utils/ai.js

@@ -1,11 +1,18 @@
-// ai.js - NanoGPT API wrapper for kekbot with fallback support
+// ai.js - NanoGPT API wrapper for kekbot with fallback and web search support
 // Copyright (C) 2025  Luis Bauza
 
 import axios from 'axios';
 
-const DEFAULT_MODEL = 'GLM-4.5-Air-Derestricted-Steam-ReExtract';
+const DEFAULT_MODEL = 'GLM-4.5-Air-Derestricted';
 const FALLBACK_MODEL = 'GLM-4.7-Flash';
-const FALLBACK_API_URL = 'https://api.z.ai/api/paas/v4/chat/completions';
+const FALLBACK_API_URL = 'https://api.z.ai/api/coding/paas/v4/chat/completions';
+
+// Keywords that suggest the user wants current/web information
+const WEB_SEARCH_TRIGGERS = [
+  'latest', 'news', 'current', 'today', 'yesterday', 'this week',
+  'what is the', 'who is', 'what happened', 'search', 'find',
+  'how do i', 'how to', 'what\'s the best', 'top ', '2024', '2025', '2026'
+];
 
 const SASSY_SYSTEM_PROMPT = `You are kekbot, a sassy Discord chatter with a big personality.
 
@@ -19,7 +26,7 @@ CORE PERSONALITY:
 
 OPINIONS:
 - You're a true gamer with strong opinions about games
-- You hate League of Legends and Riot Games with a passion - but only bring it up when asked
+- You hate League of Legends and Riot Games with a passion - - but only bring it up when asked
 - When asked about other games, respond normally without mentioning LoL
 - You have views on politics and aren't afraid to share them from a Democrat/Libertarian perspective
 
@@ -43,9 +50,9 @@ CONTEXT: You're chatting in a Discord server. Multiple people might be talking.
 const conversationHistory = new Map();
 const MAX_HISTORY_PER_CHANNEL = 10;
 
-// Estimate token count (rough approximation: ~4 chars per token)
-function estimateTokens(text) {
-  return Math.ceil(text.length / 4);
+function shouldUseWebSearch(prompt) {
+  const lowerPrompt = prompt.toLowerCase();
+  return WEB_SEARCH_TRIGGERS.some(trigger => lowerPrompt.includes(trigger));
 }
 
 function buildMessages(history, prompt, mentionedUsername, systemPrompt) {
@@ -54,28 +61,36 @@ function buildMessages(history, prompt, mentionedUsername, systemPrompt) {
     ...history,
     {
       role: 'user',
-      content: mentionedUsername ? `${mentionedUsername}: ${prompt}` : prompt,
-    },
+      content: mentionedUsername
+        ? `${mentionedUsername}: ${prompt}`
+        : prompt
+    }
   ];
   return messages;
 }
 
-async function callNanoGPT(messages, model) {
+function getModelWithSearch(model) {
+  return `${model}:online`;
+}
+
+async function callNanoGPT(messages, model, useWebSearch = false) {
+  const modelToUse = useWebSearch ? getModelWithSearch(model) : model;
+  
   const response = await axios.post(
     'https://nano-gpt.com/api/v1/chat/completions',
     {
-      model: model,
+      model: modelToUse,
       messages: messages,
       temperature: 0.8,
-      max_tokens: 500,
+      max_tokens: 800,
     },
     {
       headers: {
         Authorization: `Bearer ${process.env.NANOGPT_API_KEY}`,
         'Content-Type': 'application/json',
       },
-      timeout: 60000,
-    },
+      timeout: 90000, // Longer timeout for web search
+    }
   );
   return response.data.choices[0].message.content;
 }
@@ -95,27 +110,62 @@ async function callFallbackAPI(messages) {
         'Content-Type': 'application/json',
       },
       timeout: 60000,
-    },
+    }
   );
   return response.data.choices[0].message.content;
 }
 
+async function callNanoGPTWithRetry(messages, model, useWebSearch = false, maxRetries = 2) {
+  let lastError;
+  
+  for (let attempt = 0; attempt <= maxRetries; attempt++) {
+    try {
+      return await callNanoGPT(messages, model, useWebSearch);
+    } catch (error) {
+      lastError = error;
+      console.error(`NanoGPT attempt ${attempt + 1} failed:`, error.message);
+      
+      // If it's a web search failure, try without web search
+      if (useWebSearch && attempt === 0) {
+        console.log('Web search failed, retrying without...');
+        try {
+          return await callNanoGPT(messages, model, false);
+        } catch (retryError) {
+          console.error('Retry without web search also failed:', retryError.message);
+        }
+      }
+      
+      // Wait before retry (exponential backoff)
+      if (attempt < maxRetries) {
+        await new Promise(resolve => setTimeout(resolve, 1000 * (attempt + 1)));
+      }
+    }
+  }
+  throw lastError;
+}
+
 export async function getAIResponse(prompt, channelId, mentionedUsername) {
   const history = conversationHistory.get(channelId) || [];
   const messages = buildMessages(history, prompt, mentionedUsername, SASSY_SYSTEM_PROMPT);
   const model = process.env.NANO_MODEL || DEFAULT_MODEL;
+  
+  // Determine if we should use web search
+  const useWebSearch = shouldUseWebSearch(prompt);
+  if (useWebSearch) {
+    console.log('Web search enabled for query:', prompt.substring(0, 50));
+  }
 
   // Try NanoGPT first
   if (process.env.NANOGPT_API_KEY) {
     try {
-      console.log('Attempting NanoGPT...');
-      const aiResponse = await callNanoGPT(messages, model);
-
+      console.log(useWebSearch ? 'Attempting NanoGPT with web search...' : 'Attempting NanoGPT...');
+      const aiResponse = await callNanoGPTWithRetry(messages, model, useWebSearch);
+      
       // Update history on success
       const newHistory = [
         ...history,
         { role: 'user', content: prompt },
-        { role: 'assistant', content: aiResponse },
+        { role: 'assistant', content: aiResponse }
       ];
 
       if (newHistory.length > MAX_HISTORY_PER_CHANNEL) {
@@ -134,12 +184,12 @@ export async function getAIResponse(prompt, channelId, mentionedUsername) {
     try {
       console.log('Attempting fallback (z.ai)...');
       const aiResponse = await callFallbackAPI(messages);
-
+      
       // Update history on success
       const newHistory = [
         ...history,
         { role: 'user', content: prompt },
-        { role: 'assistant', content: aiResponse },
+        { role: 'assistant', content: aiResponse }
       ];
 
       if (newHistory.length > MAX_HISTORY_PER_CHANNEL) {
@@ -149,10 +199,7 @@ export async function getAIResponse(prompt, channelId, mentionedUsername) {
 
       return aiResponse;
     } catch (fallbackError) {
-      console.error(
-        'Fallback API also failed:',
-        fallbackError.response?.data || fallbackError.message,
-      );
+      console.error('Fallback API also failed:', fallbackError.response?.data || fallbackError.message);
       throw new Error('All AI providers failed');
     }
   }