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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Enhanced Multi-Source AI Chatbot</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="Multi-source chatbot with DuckDuckGo, Wikipedia, Weather APIs, and offline fallbacks">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap" rel="stylesheet">
<style>
:root {
--bg: #0b1020; --bg2: #0f1630; --panel: #0f1732; --text: #e7ecff; --muted: #a3b1d9;
--accent: #6ea8fe; --accent2: #8ad1ff; --bubble-user: #1a254f; --bubble-bot: #141e3d;
--shadow: 0 10px 30px rgba(0,0,0,.35); --radius: 14px;
}
* { box-sizing: border-box }
body {
margin: 0; padding: 0; height: 100%; font-family: Inter, system-ui, -apple-system, sans-serif;
color: var(--text); background: radial-gradient(1200px 800px at 10% -20%, #20306a 0%, transparent 60%),
radial-gradient(900px 700px at 110% 10%, #1b3c7a 0%, transparent 60%),
radial-gradient(700px 900px at 50% 120%, #1a365d 0%, transparent 60%),
linear-gradient(180deg, var(--bg), var(--bg2)); background-attachment: fixed;
}
.app { display: flex; flex-direction: column; min-height: 100%; max-width: 1100px; margin: 0 auto; }
header {
position: sticky; top: 0; z-index: 10; backdrop-filter: saturate(180%) blur(8px);
background: linear-gradient(180deg, rgba(10,16,34,.8), rgba(10,16,34,.35));
border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo {
width: 36px; height: 36px; border-radius: 10px;
background: conic-gradient(from 210deg, #6ea8fe, #8ad1ff, #6ea8fe);
box-shadow: 0 6px 16px rgba(110,168,254,.35), inset 0 0 18px rgba(255,255,255,.2); position: relative;
}
.logo::after {
content: ""; position: absolute; inset: 3px; border-radius: 8px;
background: radial-gradient(120px 80px at 30% 20%, rgba(255,255,255,.5), transparent 40%),
linear-gradient(180deg, rgba(255,255,255,.12), rgba(0,0,0,.18));
}
.title { font-weight: 800; letter-spacing: .2px; font-size: 18px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.subtitle { font-size: 12px; color: var(--muted); }
.links { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.btn {
appearance: none; border: none; cursor: pointer; font: inherit; color: inherit; padding: 10px 14px;
border-radius: 10px; background: #1a254f; color: #dfe8ff; display: inline-flex; align-items: center; gap: 8px;
border: 1px solid rgba(255,255,255,.08); transition: transform .08s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
}
.btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,.18) }
.btn.secondary { background: #0f1732 }
.btn.ghost { background: transparent; border-color: rgba(255,255,255,.1) }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none }
.icon { width: 18px; height: 18px; display: inline-block; }
main { flex: 1; display: flex; flex-direction: column; padding: 12px; }
.chat { flex: 1; overflow: auto; padding: 12px; padding-bottom: 24px; scroll-behavior: smooth; }
.messages { display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; gap: 10px; align-items: flex-end; }
.row.user { justify-content: flex-end }
.row.bot { justify-content: flex-start }
.avatar {
width: 32px; height: 32px; border-radius: 50%; background: #172046; display: flex; align-items: center; justify-content: center;
font-size: 14px; font-weight: 700; border: 1px solid rgba(255,255,255,.08); box-shadow: var(--shadow); flex-shrink: 0;
}
.avatar.bot { background: radial-gradient(100px 80px at 20% 10%, #2a3d7a, #192555) }
.avatar.user { background: radial-gradient(120px 90px at 30% 10%, #1a2c5f, #0e1736) }
.bubble {
max-width: min(800px, 86vw); padding: 12px 14px; border-radius: var(--radius);
border: 1px solid rgba(255,255,255,.08); box-shadow: var(--shadow); line-height: 1.55; position: relative;
word-wrap: break-word; overflow-wrap: anywhere;
}
.bubble.user { background: linear-gradient(180deg, #152152, #101a3e); border-top-right-radius: 6px }
.bubble.bot { background: linear-gradient(180deg, #111a3b, #0c1431); border-bottom-left-radius: 6px }
.meta { font-size: 12px; color: var(--muted); margin-bottom: 6px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.badge { padding: 2px 8px; border-radius: 999px; background: #0c1330; border: 1px solid rgba(255,255,255,.08); font-size: 11px; color: #c7d5ff; }
.answer { font-size: 15px; color: #e9efff }
.answer p { margin: 0 0 10px 0 }
.answer ul, .answer ol { margin: 6px 0 10px 18px }
.answer a { color: var(--accent2); text-decoration: underline }
.sources { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.source {
font-size: 12px; color: #c7d5ff; background: #0c1330; border: 1px solid rgba(255,255,255,.08);
padding: 4px 8px; border-radius: 8px;
}
.source.multi { background: #0d1b3a; border-color: #4a90e2 }
.composer {
position: sticky; bottom: 0; z-index: 9; display: flex; gap: 10px; align-items: flex-end; padding: 12px;
background: linear-gradient(180deg, rgba(10,16,34,.0), rgba(10,16,34,.85)); backdrop-filter: blur(8px);
border-top: 1px solid rgba(255,255,255,.06);
}
.input-wrap {
flex: 1; display: flex; gap: 10px; align-items: flex-end; background: linear-gradient(180deg, #0e1633, #0b122b);
border: 1px solid rgba(255,255,255,.08); border-radius: 14px; padding: 8px; box-shadow: var(--shadow);
}
textarea {
flex: 1; resize: none; border: none; outline: none; background: transparent; color: var(--text); font: inherit;
line-height: 1.4; max-height: 200px; min-height: 40px; padding: 8px 10px;
}
.actions { display: flex; gap: 8px; align-items: center; }
.small-btn {
width: 38px; height: 38px; border-radius: 10px; border: 1px solid rgba(255,255,255,.1); background: #0e1633;
display: flex; align-items: center; justify-content: center; cursor: pointer;
transition: transform .08s ease, border-color .2s ease, background .2s ease;
}
.small-btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,.2) }
.small-btn:disabled { opacity: .6; cursor: not-allowed; transform: none }
.suggestions {
position: absolute; left: 12px; right: 12px; bottom: 64px; display: flex; flex-wrap: wrap; gap: 8px; pointer-events: none;
}
.chip {
pointer-events: auto; background: #0d1431; border: 1px solid rgba(255,255,255,.1); color: #d8e4ff;
padding: 6px 10px; border-radius: 999px; font-size: 12px; cursor: pointer;
transition: transform .08s ease, background .2s ease, border-color .2s ease;
}
.chip:hover { transform: translateY(-1px); background: #121c44; border-color: rgba(255,255,255,.2) }
.typing { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 6px; height: 6px; background: #c7d5ff; border-radius: 50%; opacity: .8; animation: blink 1.4s infinite ease-in-out; }
.dot:nth-child(2) { animation-delay: .2s }
.dot:nth-child(3) { animation-delay: .4s }
@keyframes blink { 0%,80%,100% { transform: translateY(0); opacity: .5 } 40% { transform: translateY(-3px); opacity: 1 } }
.hint { font-size: 12px; color: var(--muted); padding: 4px 2px 0 2px; }
.footer-note { text-align: center; font-size: 12px; color: var(--muted); padding: 10px 0 18px; }
.data-source-indicator {
display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 2px 6px; border-radius: 6px;
background: rgba(74, 144, 226, 0.2); border: 1px solid rgba(74, 144, 226, 0.4);
}
.data-source-indicator.wiki { background: rgba(74, 226, 144, 0.2); border-color: rgba(74, 226, 144, 0.4); }
.data-source-indicator.weather { background: rgba(250, 204, 21, 0.2); border-color: rgba(250, 204, 21, 0.4); }
.data-source-indicator.calc { background: rgba(168, 85, 247, 0.2); border-color: rgba(168, 85, 247, 0.4); }
.data-source-indicator.offline { background: rgba(248, 113, 113, 0.2); border-color: rgba(248, 113, 113, 0.4); }
.source-badge { font-size: 10px; padding: 1px 4px; border-radius: 3px; background: rgba(255,255,255,0.1); margin-left: 4px; }
.mono {
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 12px;
background: #0b1434; border: 1px solid rgba(255,255,255,.08); border-radius: 8px; padding: 10px; overflow: auto;
}
.search-results { background: #0d1431; border: 1px solid rgba(255,255,255,.1); border-radius: 8px; padding: 10px; margin: 8px 0; }
.search-result { margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,.05); }
.search-result:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.search-result-title { font-weight: 600; color: #8ad1ff; text-decoration: none; }
.search-result-title:hover { text-decoration: underline; }
.search-result-snippet { font-size: 13px; color: #c7d5ff; margin-top: 2px; }
.status {
position: fixed; bottom: 10px; right: 12px; background: rgba(12,19,48,0.8);
border: 1px solid rgba(255,255,255,.1); padding: 6px 10px; border-radius: 999px; font-size: 12px; color: var(--muted);
display: flex; align-items: center; gap: 8px; backdrop-filter: blur(6px);
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #facc15; box-shadow: 0 0 8px #facc15; }
.status-dot.ok { background: #4ade80; box-shadow: 0 0 8px #4ade80; }
.status-dot.err { background: #f87171; box-shadow: 0 0 8px #f87171; }
@media (max-width: 720px) {
.topbar { padding: 12px }
.title { font-size: 17px }
.links { display: none }
.bubble { max-width: min(760px, 92vw) }
.suggestions { bottom: 60px }
}
.chat::-webkit-scrollbar { width: 10px }
.chat::-webkit-scrollbar-thumb { background: #16214a; border-radius: 10px; border: 2px solid transparent; background-clip: padding-box; }
.chat::-webkit-scrollbar-track { background: transparent }
.fade-in { animation: fadeIn .22s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px) } to { opacity: 1; transform: translateY(0) } }
</style>
</head>
<body>
<div class="app">
<header>
<div class="topbar">
<div class="brand">
<div class="logo"></div>
<div>
<div class="title">Enhanced Multi-Source AI Chatbot</div>
<div class="subtitle">DuckDuckGo, Wikipedia, Weather, Calculator + Offline Fallbacks</div>
</div>
</div>
<div class="links">
<a class="btn ghost" href="https://duckduckgo.com/" target="_blank" rel="noopener">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M12 2a10 10 0 1 0 .001 20.001A10 10 0 0 0 12 2Zm0 0c2.5 0 4.5 5 4.5 5s-2 5-4.5 5-4.5-5-4.5-5 2-5 4.5-5Zm0 10c4.5 0 6 5 6 5" stroke="currentColor" stroke-width="2" stroke-linecap="round"/></svg>
DuckDuckGo
</a>
<a class="btn ghost" href="https://en.wikipedia.org/" target="_blank" rel="noopener">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M4 4h16v16H4z" stroke="currentColor" stroke-width="2"/><path d="M7 8h10M7 12h10M7 16h6" stroke="currentColor" stroke-width="2"/></svg>
Wikipedia
</a>
<button id="exportBtn" class="btn secondary" title="Export chat">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M12 3v12m0 0 4-4m-4 4-4-4M5 21h14" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>
Export
</button>
<button id="clearBtn" class="btn" title="Clear chat">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M3 6h18M8 6v12m8-12v12M5 6l1 14a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2L19 6M9 6V4a2 2 0 0 1 2-2h2a2 2 0 0 1 2 2v2" stroke="currentColor" stroke-width="2" stroke-linecap="round"/></svg>
Clear
</button>
<a class="btn" href="https://huggingface.co/spaces/akhaliq/anycoder" target="_blank" rel="noopener">Built with anycoder</a>
</div>
</div>
</header>
<main>
<div class="chat" id="chat">
<div class="messages" id="messages">
<div class="row bot fade-in">
<div class="avatar bot">🤖</div>
<div class="bubble bot">
<div class="meta"><span class="badge">Bot</span><span>Multi-Source AI Assistant</span></div>
<div class="answer">
<p>Hi! I'm your enhanced AI assistant with multiple data sources including DuckDuckGo Instant Answers, Wikipedia, Weather APIs, Calculator, and robust offline fallbacks.</p>
<p class="hint">Try asking about: facts, definitions, weather, time zones, calculations, historical events, or general knowledge.</p>
</div>
</div>
</div>
</div>
</div>
<div class="suggestions" id="suggestions"></div>
<div class="composer">
<div class="input-wrap">
<textarea id="prompt" rows="1" placeholder="Ask me anything... (Shift+Enter = newline)"></textarea>
<div class="actions">
<button class="small-btn" id="stopBtn" disabled title="Stop">
<svg class="icon" viewBox="0 0 24 24" fill="none"><rect x="6" y="6" width="12" height="12" rx="2" stroke="currentColor" stroke-width="2"/></svg>
</button>
<button class="small-btn" id="sendBtn" title="Send (Enter)">
<svg class="icon" viewBox="0 0 24 24" fill="none"><path d="M5 12h7m0 0-4-4m4 4-4 4M19 12h-7m0 0 4-4m-4 4 4 4" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>
</button>
</div>
</div>
</div>
</main>
<div class="footer-note">Enhanced with multiple data sources: DuckDuckGo, Wikipedia, Open-Meteo Weather API, Calculator, and offline knowledge.</div>
</div>
<div class="status" id="status">
<span class="status-dot" id="statusDot"></span>
<span id="statusText">Checking network...</span>
</div>
<script>
// Utilities
const $ = (sel, el=document) => el.querySelector(sel), $$ = (sel, el=document) => [...el.querySelectorAll(sel)];
const escapeHTML = s => s.replace(/[&<>"']/g, c => ({'&':'&','<':'<','>':'>','"':'"',"'":'''}[c]));
const nowTime = () => new Date().toLocaleTimeString([], {hour: '2-digit', minute: '2-digit'});
function updateTextareaHeight() {
const el = $('#prompt'); el.style.height = 'auto'; el.style.height = Math.min(el.scrollHeight, 200) + 'px';
}
// DOM elements
const chatEl = $('#chat'), messagesEl = $('#messages'), promptEl = $('#prompt'), sendBtn = $('#sendBtn'), stopBtn = $('#stopBtn'), suggestionsEl = $('#suggestions'), clearBtn = $('#clearBtn'), exportBtn = $('#exportBtn'), statusDot = $('#statusDot'), statusText = $('#statusText');
// State
let history = [], abortController = null, lastQuery = '', offlineMode = false;
// Network indicator
function updateNetworkStatus() {
if (navigator.onLine) { statusDot.className = 'status-dot ok'; statusText.textContent = 'Online'; offlineMode = false; }
else { statusDot.className = 'status-dot err'; statusText.textContent = 'Offline'; offlineMode = true; }
}
window.addEventListener('online', updateNetworkStatus); window.addEventListener('offline', updateNetworkStatus); updateNetworkStatus();
// Suggestions
const defaultChips = ['weather in Tokyo', 'time in London', 'define artificial intelligence', 'who was Einstein', 'sqrt(144)', 'USD to EUR', 'prime factors of 91', 'Python programming history', 'what is machine learning', 'how tall is Mount Everest', 'capital of France', 'latest news about AI', 'JavaScript vs Python', 'quantum computing explained'];
function renderSuggestions(items=defaultChips){
suggestionsEl.innerHTML = ''; items.forEach(text => {
const chip = document.createElement('button'); chip.className = 'chip'; chip.textContent = text;
chip.onclick = () => { promptEl.value = text; updateTextareaHeight(); promptEl.focus(); };
suggestionsEl.appendChild(chip);
});
}
function buildPromptChips(q){
q = q.trim(); const chips = [];
const hasWeather = /\b(weather|temperature|forecast)\b/i.test(q);
const hasDefine = /\b(define|meaning|definition|what does)\b/i.test(q);
const hasConvert = /\b(to|in|°)\b/i.test(q) || /\b(c|f|cm|inch|kg|lb)\b/.test(q);
const hasTime = /\b(time|datetime|date)\b/i.test(q);
const hasWho = /\b(who is|who's|who’re)\b/i.test(q);
const hasCalc = /[\d\+\-\*\/\^\(\)\.]/.test(q);
const hasHistory = /\b(history|historical)\b/i.test(q);
const hasScience = /\b(science|scientific)\b/i.test(q);
if (q && !hasWeather) chips.push(q.replace(/\b(what is|what's)\b/i,'') + ' weather');
if (q && !hasDefine) chips.push('define ' + q.replace(/\b(define|meaning|definition|what does)\b/i,'').trim());
if (q && !hasConvert && /(?:\d|\b)(°\s?[cf]|celsius|fahrenheit|cm|inch|kg|lb)\b/i.test(q)) chips.push(q + ' to fahrenheit');
if (q && !hasTime) chips.push('time in ' + q.replace(/\b(what is|what's|time in|date|datetime)\b/ig,'').trim());
if (q && !hasWho) chips.push('who is ' + q.replace(/\b(who is|who's|who’re)\b/ig,'').trim());
if (q && !hasCalc) chips.push(q.replace(/\b(calculate|compute|solve)\b/i,'').trim());
if (q && !hasHistory) chips.push(q + ' history');
if (q && !hasScience) chips.push(q + ' science');
const unique = [...new Set(chips)].filter(Boolean).slice(0,6);
if (unique.length === 0) renderSuggestions(defaultChips); else renderSuggestions(unique);
}
// Message helpers
function addMessage(role, contentHTML, meta = {}){
const row = document.createElement('div'); row.className = `row ${role} fade-in`;
const avatar = document.createElement('div'); avatar.className = `avatar ${role}`; avatar.textContent = role === 'bot' ? '🤖' : '🙂';
const bubble = document.createElement('div'); bubble.className = `bubble ${role}`;
const metaEl = document.createElement('div'); metaEl.className = 'meta';
const badge = document.createElement('span'); badge.className = 'badge'; badge.textContent = role === 'bot' ? (meta.badge || 'AI Assistant') : 'You';
metaEl.appendChild(badge);
if (meta.source) {
const sourceEl = document.createElement('span'); sourceEl.className = `data-source-indicator ${meta.source.className || ''}`;
sourceEl.innerHTML = `${meta.source.icon || '📡'} ${meta.source.name}`;
metaEl.appendChild(sourceEl);
}
if (meta.note){ const note = document.createElement('span'); note.textContent = meta.note; note.style.color = 'var(--muted)'; metaEl.appendChild(note); }
const answer = document.createElement('div'); answer.className = 'answer'; answer.innerHTML = contentHTML;
bubble.appendChild(metaEl); bubble.appendChild(answer);
if (meta.sources && meta.sources.length){
const sources = document.createElement('div'); sources.className = 'sources';
meta.sources.forEach(src => {
const s = document.createElement('a'); s.className = `source ${src.multi ? 'multi' : ''}`; s.href = src.href; s.target = '_blank'; s.rel = 'noopener noreferrer'; s.textContent = src.label || src.href; sources.appendChild(s);
});
bubble.appendChild(sources);
}
row.appendChild(avatar); row.appendChild(bubble); messagesEl.appendChild(row); chatEl.scrollTop = chatEl.scrollHeight; return bubble;
}
function addTyping(){
const row = document.createElement('div'); row.className = 'row bot fade-in'; row.dataset.typing = '1';
const avatar = document.createElement('div'); avatar.className = 'avatar bot'; avatar.textContent = '🤖';
const bubble = document.createElement('div'); bubble.className = 'bubble bot';
const metaEl = document.createElement('div'); metaEl.className = 'meta';
const badge = document.createElement('span'); badge.className = 'badge'; badge.textContent = 'AI Assistant';
metaEl.appendChild(badge);
const answer = document.createElement('div'); answer.className = 'answer';
answer.innerHTML = `<span class="typing"><span class="dot"></span><span class="dot"></span><span class="dot"></span></span>`;
bubble.appendChild(metaEl); bubble.appendChild(answer);
row.appendChild(avatar); row.appendChild(bubble); messagesEl.appendChild(row); chatEl.scrollTop = chatEl.scrollHeight; return row;
}
function removeTyping(){ const t = $('[data-typing="1"]', messagesEl); if (t) t.remove(); }
// CORS proxy list
const CORS_PROXIES = [
target => `https://cors.isomorphic-git.org/${target}`,
targetapi.codetabs => `https://.com/v1/proxy?quest=${encodeURIComponent(target)}`,
target => `https://corsproxy.io/?${encodeURIComponent(target)}`
];
async function fetchWithCorsProxies(targetUrl, signal){
let lastErr = null;
for (const buildProxy of CORS_PROXIES){
const proxyUrl = buildProxy(targetUrl);
try{
const res = await fetch(proxyUrl, { signal, headers: { 'Accept': 'application/json, text/plain, */*' } });
if (!res.ok) throw new Error(`HTTP ${res.status}`);
const contentType = res.headers.get('content-type') || '';
const text = await res.text();
let data = text;
if (contentType.includes('application/json')) { try { data = JSON.parse(text); } catch {} }
return data;
}catch(err){ lastErr = err; }
}
throw lastErr || new Error('All CORS proxies failed');
}
// Data Source Classes
class DataSource {
constructor(name, icon, className) { this.name = name; this.icon = icon; this.className = className; }
async search(query, signal) { throw new Error('Not implemented'); }
getPriority() { return 50; }
canHandle() { return false; }
}
class OfflineSource extends DataSource {
constructor() { super('Offline', '💾', 'offline'); }
canHandle() { return offlineMode; }
getPriority() { return 5; }
async search(query, signal) {
const kb = LocalKnowledgeBase;
const found = kb.search(query);
if (found) {
return { found: true, html: found.html, sources: found.sources || [], note: found.note || 'Offline knowledge', raw: { query } };
}
return { found: false, html: '<p>I\'m currently offline and don\'t have information about that. Please try a rephrase or check your network connection.</p>', sources: [], note: 'Offline', raw: { query } };
}
}
class DuckDuckGoSource extends DataSource {
constructor() { super('DuckDuckGo', '🦆', 'ddg'); }
buildDDGUrl(query){ const url = new URL('https://api.duckduckgo.com/'); url.searchParams.set('q', query); url.searchParams.set('format', 'json'); url.searchParams.set('no_html', '1'); url.searchParams.set('no_redirect', '1'); url.searchParams.set('skip_disambig', '1'); return url.toString(); }
canHandle() { return true; }
getPriority() { return 40; }
async search(query, signal) {
const targetUrl = this.buildDDGUrl(query);
try {
const data = await fetchWithCorsProxies(targetUrl, signal);
const sources = [];
if (Array.isArray(data.Results)) {
data.Results.forEach(r => { if (r && r.FirstURL && r.Text) sources.push({ href: r.FirstURL, label: new URL(r.FirstURL).hostname.replace('www.','') }); });
}
if (data.AbstractURL) sources.push({ href: data.AbstractURL, label: new URL(data.AbstractURL).hostname.replace('www.','') });
if (data.Answer && data.AnswerURL) sources.push({ href: data.AnswerURL, label: new URL(data.AnswerURL).hostname.replace('www.','') });
let primary = ''; let note = '';
if (data.Answer && data.Answer.trim()){ primary = data.Answer; note = 'Instant Answer'; }
else if (data.Definition && data.Definition.trim()){ primary = data.Definition; note = data.DefinitionSource ? ('Definition • ' + data.DefinitionSource) : 'Definition'; if (data.DefinitionURL) sources.push({ href: data.DefinitionURL, label: new URL(data.DefinitionURL).hostname.replace('www.','') }); }
else if (data.AbstractText && data.AbstractText.trim()){ primary = data.AbstractText; note = data.Heading ? ('About: ' + data.Heading) : (data.AbstractSource ? data.AbstractSource : 'Abstract'); }
else if (data.RelatedTopics && data.RelatedTopics.length){
const items = [];
for (const t of data.RelatedTopics){
if (t && t.Text && t.FirstURL) { items.push(`<li><a href="${t.FirstURL}" target="_blank" rel="noopener noreferrer">${escapeHTML(t.Text)}</a></li>`); }
else if (Array.isArray(t.Topics)) {
for (const tt of t.Topics){ if (tt && tt.Text && tt.FirstURL) { items.push(`<li><a href="${tt.FirstURL}" target="_blank" rel="noopener noreferrer">${escapeHTML(tt.Text)}</a></li>`); } }
}
if (items.length >= 6) break;
}
if (items.length){ primary = `<p>Here are some related topics I found:</p><ul>${items.join('')}</ul>`; note = 'Related topics'; }
}
if (!primary) { return { found: false, html: '<p>No direct answer from DuckDuckGo.</p>', sources, note: 'DuckDuckGo', raw: data }; }
return { found: true, html: primary, sources, note, raw: data };
} catch (err) { return { found: false, html: '<p>Failed to fetch from DuckDuckGo (possibly blocked by CORS). Try again or use a different query.</p>', sources: [], note: 'DuckDuckGo', raw: null }; }
}
}
class WikipediaSource extends DataSource {
constructor() { super('Wikipedia', '📚', 'wiki'); }
canHandle() { return /\b(who is|who was|what is|what was|definition|define|history|historical|article)\b/i.test(lastQuery) || /\b[a-zA-Z]{3,}\b/.test(lastQuery); }
getPriority() { return 35; }
async search(query, signal) {
try {
const title = query.replace(/^(who is|who was|what is|what was|definition|define)\s+/i, '').trim();
const searchUrl = `https://en.wikipedia.org/api/rest_v1/page/summary/${encodeURIComponent(title)}`;
const data = await fetchWithCorsProxies(searchUrl, signal);
if (data.extract) {
const sources = [];
if (data.content_urls?.desktop?.page) { sources.push({ href: data.content_urls.desktop.page, label: 'Wikipedia Article', multi: true }); }
let html = `<p>${escapeHTML(data.extract)}</p>`;
if (data.extract_html) { html = data.extract_html; }
if (data.thumbnail?.source) { html = `<img src="${data.thumbnail.source}" alt="${escapeHTML(data.title || 'Image')}" style="max-width: 200px; border-radius: 8px; margin-bottom: 10px;" /><br/>${html}`; }
return { found: true, html, sources, note: data.title ? `Wikipedia: ${data.title}` : 'Wikipedia Article', raw: data };
}
return { found: false, html: '<p>No Wikipedia article found.</p>', sources: [], note: 'Wikipedia', raw: data };
} catch (err) { return { found: false, html: '<p>Error fetching Wikipedia data.</p>', sources: [], note: 'Wikipedia', raw: null }; }
}
}
class WeatherSource extends DataSource {
constructor() { super('Weather', '🌤️', 'weather'); }
canHandle() { return /\b(weather|temperature|forecast)\b/i.test(lastQuery); }
getPriority() { return 30; }
async search(query, signal) {
const cityMatch = query.match(/\b(?:weather|temperature|forecast)\s+(?:in|at|for)?\s*([a-zA-Z\s,]+)/i);
const city = cityMatch ? cityMatch[1].trim() : '';
if (!city) { return { found: false, html: '<p>Please specify a city for weather information (e.g., "weather in Tokyo").</p>', sources: [], note: 'Weather', raw: null }; }
try {
const geoUrl = `https://geocoding-api.open-meteo.com/v1/search?name=${encodeURIComponent(city)}&count=1&language=en&format=json`;
const geoData = await fetch(geoUrl, { signal }).then(r => r.json());
if (!geoData.results || geoData.results.length === 0) { return { found: false, html: `<p>City "${city}" not found.</p>`, sources: [], note: 'Weather', raw: null }; }
const { latitude, longitude, name, country_code, timezone } = geoData.results[0];
const weatherUrl = `https://api.open-meteo.com/v1/forecast?latitude=${latitude}&longitude=${longitude}¤t_weather=true&daily=temperature_2m_max,temperature_2m_min,precipitation_sum&timezone=${timezone}`;
const weatherData = await fetch(weatherUrl, { signal }).then(r => r.json());
if (weatherData.current_weather) {
const current = weatherData.current_weather;
const html = `
<p><strong>Weather in ${name}, ${country_code}</strong></p>
<ul>
<li>Temperature: ${current.temperature}°C (${Math.round(current.temperature * 9/5 + 32)}°F)</li>
<li>Wind Speed: ${current.windspeed} km/h</li>
<li>Weather Code: ${current.weathercode}</li>
<li>Time: ${current.time}</li>
</ul>
<p><em>Data provided by Open-Meteo</em></p>
`;
return { found: true, html, sources: [{ href: `https://open-meteo.com/`, label: 'Open-Meteo API' }], note: 'Weather Data', raw: weatherData };
}
return { found: false, html: '<p>Weather data not available.</p>', sources: [], note: 'Weather', raw: null };
} catch (err) { return { found: false, html: '<p>Error fetching weather data.</p>', sources: [], note: 'Weather', raw: null }; }
}
}
class CalculatorSource extends DataSource {
constructor() { super('Calculator', '🧮', 'calc'); }
canHandle() { return /[\d\+\-\*\/\^\(\)\.]/.test(lastQuery) && !/\b(what is|who|where|when|why|how)\b/i.test(lastQuery); }
getPriority() { return 25; }
async search(query, signal) {
try {
const clean = query.replace(/[^0-9+\-*/().\s]/g, '');
if (!clean.trim()) { return { found: false, html: '<p>No calculation detected.</p>', sources: [], note: 'Calculator', raw: null }; }
// Safe evaluation using Function constructor
const result = Function(`"use strict"; return (${clean})`)();
if (typeof result === 'number' && isFinite(result)) {
const html = `<p><strong>Calculation:</strong> ${escapeHTML(clean)} = <strong>${result}</strong></p>`;
return { found: true, html, sources: [], note: 'Calculator', raw: { expression: clean, result } };
}
return { found: false, html: '<p>Invalid expression.</p>', sources: [], note: 'Calculator', raw: null };
} catch (err) { return { found: false, html: '<p>Calculation error.</p>', sources: [], note: 'Calculator', raw: null }; }
}
}
// Local Knowledge Base
const LocalKnowledgeBase = {
data: [
{ query: 'hello|hi|hey|greetings', html: '<p>Hello! I\'m an AI assistant that can help you with facts, weather, calculations, and more. What would you like to know?</p>', note: 'Greeting' },
{ query: 'who are you|what are you|your name', html: '<p>I\'m an AI assistant with access to multiple data sources including DuckDuckGo, Wikipedia, weather APIs, and a built-in knowledge base for offline use.</p>', note: 'Identity' },
{ query: 'artificial intelligence|ai|machine learning', html: '<p>Artificial Intelligence (AI) is a branch of computer science focused on creating systems that can perform tasks typically requiring human intelligence, such as learning, reasoning, problem-solving, and understanding natural language.</p>', note: 'Definition' },
{ query: 'python programming', html: '<p>Python is a high-level, interpreted programming language known for its simple syntax and versatility. It\'s widely used in web development, data science, artificial intelligence, automation, and scientific computing.</p>', note: 'Programming' },
{ query: 'javascript', html: '<p>JavaScript is a programming language that runs in web browsers and is essential for creating interactive web pages. It can also be used on servers (Node.js) and for mobile app development.</p>', note: 'Programming' }
],
search(query) {
const lowerQuery = query.toLowerCase();
return this.data.find(item => new RegExp(item.query, 'i').test(lowerQuery));
}
};
// Initialize data sources
const sources = [new OfflineSource(), new CalculatorSource(), new WeatherSource(), new WikipediaSource(), new DuckDuckGoSource()];
// Search orchestrator
async function searchMultipleSources(query, signal) {
const availableSources = sources.filter(s => s.canHandle()).sort((a, b) => b.getPriority() - a.getPriority());
for (const source of availableSources) {
try {
const result = await source.search(query, signal);
if (result.found |