script.js

// Theme Preferences
const userPreferences = JSON.parse(localStorage.getItem("preferences")) || { theme: "light" };
document.body.className = userPreferences.theme;

function changeTheme() {
 userPreferences.theme = userPreferences.theme === "light" ? "dark" : "light";
 document.body.className = userPreferences.theme;
 localStorage.setItem("preferences", JSON.stringify(userPreferences));
}

// DOM Elements
const userInput = document.getElementById("userInput");
const messageArea = document.getElementById("messageArea");
const micStatus = document.getElementById("micStatus");

// Constants
const WEATHER_API_KEY = "5b72dabcdd9d4b67a75170510250304";
const NYT_API_KEY = "N8j8mb3TSiexCbefuDeT1Ap5MgKPGwmw";

let gameActive = false;
let secretNumber = null;

// Speech Recognition
const recognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();
recognition.lang = "en-US";
recognition.interimResults = false;

recognition.addEventListener("start", () => micStatus.style.display = "block");
recognition.addEventListener("end", () => micStatus.style.display = "none");

recognition.addEventListener("result", (event) => {
 userInput.value = event.results[0][0].transcript;
 sendMessage();
});

function startListening() {
 recognition.start();
}

// User presses Enter
userInput.addEventListener("keypress", (event) => {
 if (event.key === "Enter") sendMessage();
});

// Utility Functions
function speak(text) {
 const utterance = new SpeechSynthesisUtterance(text);
 window.speechSynthesis.speak(utterance);
}

function addAssistantMessage(response) {
 const assistantContainer = document.createElement("div");
 assistantContainer.classList.add("assistant-message-container");

 const assistantMessage = document.createElement("p");
 assistantMessage.textContent = "Codriver: " + response;
 assistantMessage.classList.add("assistant-message");

 const assistantSpeaker = document.createElement("button");
 assistantSpeaker.textContent = "🔊";
 assistantSpeaker.onclick = () => speak(response);

 assistantContainer.appendChild(assistantMessage);
 assistantContainer.appendChild(assistantSpeaker);
 messageArea.appendChild(assistantContainer);
}

// External Fetches
async function fetchWeather(city) {
 try {
 const response = await fetch(`http://api.weatherapi.com/v1/current.json?key=${WEATHER_API_KEY}&q=${city}`);
 const data = await response.json();
 return `🌤 Weather in ${data.location.name}: ${data.current.temp_c}°C, ${data.current.condition.text}`;
 } catch {
 return "Sorry, I couldn't fetch the weather.";
 }
}

async function fetchNews() {
 try {
 const response = await fetch(`https://api.nytimes.com/svc/topstories/v2/home.json?api-key=${NYT_API_KEY}`);
 const data = await response.json();
 return data.results.slice(0, 5).map(article => `• ${article.title}`).join("\n");
 } catch {
 return "Sorry, I couldn't fetch the top news.";
 }
}

// Random Data Generators
function getRandomQuote() {
 return [
 "The only limit to our realization of tomorrow is our doubts of today.",
 "Be the change you wish to see in the world.",
 "Life is 10% what happens to us and 90% how we react to it.",
 "Keep your face always toward the sunshine—and shadows will fall behind you."
 ][Math.floor(Math.random() * 4)];
}

function getRandomFunFact() {
 return [
 "Honey never spoils!",
 "Bananas are berries, but strawberries aren't!",
 "Sharks existed before trees.",
 "Octopuses have three hearts."
 ][Math.floor(Math.random() * 4)];
}

function getRandomJoke() {
 return [
 "Why don't scientists trust atoms? Because they make up everything!",
 "Why did the scarecrow win an award? Because he was outstanding in his field!",
 "I told my computer I needed a break, and it said 'No problem, I'll go to sleep.'"
 ][Math.floor(Math.random() * 3)];
}

function getRandomRiddle() {
 return [
 "What has keys but can’t open locks? A piano.",
 "What can travel around the world while staying in one spot? A stamp.",
 "What gets wetter the more it dries? A towel."
 ][Math.floor(Math.random() * 3)];
}

function getCurrentTime() {
 const now = new Date();
 const hours = now.getHours();
 const minutes = String(now.getMinutes()).padStart(2, "0");
 const period = hours >= 12 ? "PM" : "AM";
 const formattedHours = hours % 12 || 12;
 return `The current time is ${formattedHours}:${minutes} ${period}`;
}

// Main Handler
async function sendMessage() {
 const input = userInput.value.trim();
 if (!input) return;

 const userMessage = document.createElement("p");
 userMessage.textContent = "You: " + input;
 userMessage.classList.add("user-message");
 messageArea.appendChild(userMessage);

 if (gameActive) {
 if (/exit game/i.test(input)) {
 gameActive = false;
 addAssistantMessage("Game exited. How else can I assist you?");
 } else if (/^\d+$/.test(input)) {
 const guess = parseInt(input, 10);
 if (guess === secretNumber) {
 gameActive = false;
 addAssistantMessage("Congratulations! You guessed it right.");
 } else if (guess < secretNumber) {
 addAssistantMessage("Too low. Try again!");
 } else {
 addAssistantMessage("Too high. Try again!");
 }
 } else {
 addAssistantMessage("We're in a game! Please enter a number or type 'exit game'.");
 }
 userInput.value = "";
 return;
 }

 let response = "";

 if (/hello|hi|hey|greetings/i.test(input)) {
 response = "Hello! How can I assist you today?";
 } else if (/quote/i.test(input)) {
 response = getRandomQuote();
 } else if (/weather/i.test(input)) {
 const city = input.split(" ").pop();
 response = await fetchWeather(city);
 } else if (/news/i.test(input)) {
 response = await fetchNews();
 } else if (/fun fact/i.test(input)) {
 response = getRandomFunFact();
 } else if (/joke/i.test(input)) {
 response = getRandomJoke();
 } else if (/riddle/i.test(input)) {
 response = getRandomRiddle();
 } else if (/time/i.test(input)) {
 response = getCurrentTime();
 } else if (/game/i.test(input)) {
 gameActive = true;
 secretNumber = Math.floor(Math.random() * 10) + 1;
 response = "Let's play a game! I'm thinking of a number between 1 and 10. What's your guess?";
 } else if (/calculate|what'?s|what is|^[0-9+\-*/().\s]+$/i.test(input)) {
 try {
 const expression = input.replace(/[^0-9+\-*/().]/g, "");
 const result = Function("'use strict'; return (" + expression + ")")();
 response = `The result is ${result}`;
 } catch {
 response = "I couldn't calculate that. Please check your expression.";
 }
 } else {
 response = "Sorry, I didn't understand that.";
 }

 addAssistantMessage(response);
 userInput.value = "";
 messageArea.scrollTop = messageArea.scrollHeight;
}