main.js

// Main application file
// Variables
var chatData = null;
var isPlaying = false;
var currentIndex = 0;
var speed = 1;

// Get elements
var uploadZone = document.getElementById('uploadZone');
var fileInput = document.getElementById('chatFileInput');
var fileStatus = document.getElementById('fileStatus');
var playBtn = document.getElementById('playPauseBtn');
var restartBtn = document.getElementById('restartBtn');
var slider = document.getElementById('timelineSlider');
var currentTime = document.getElementById('currentTimeLabel');
var totalTime = document.getElementById('durationLabel');
var chatWindow = document.getElementById('chatWindow');
var msgCount = document.getElementById('messageCount');
var statusText = document.getElementById('statusText');

// Initialize the app
setupUploadZone();
setupSlider();
setupSpeedButtons();

// Event listeners
playBtn.onclick = togglePlayback;
restartBtn.onclick = restartPlayback;