{% extends "base.html" %}

{% block title %}Live Chat - Too Many Cables{% endblock %}

{% block content %}
<!-- Page Header -->
<section class="page-header">
    <div class="container">
        <div class="header-card">
            <div class="page-header-content">
                <h1>Live Chat Support</h1>
                <p>Get instant help from our AI-powered customer service agent</p>
                <div class="status-indicator">
                    <div id="status-dot" class="status-dot online"></div>
                    <span id="status-text">Agent Online</span>
                </div>
            </div>
        </div>
    </div>
</section>

<!-- Chat Interface -->
<section class="chat-section">
    <div class="container">
        <div class="chat-layout">
            <!-- Main Chat Container -->
            <div class="glassmorphism-container chat-main">
                <div class="chat-container">
                    <div id="chat-messages" class="chat-messages">
                        <div class="welcome-message">
                            <div class="agent-avatar">🤖</div>
                            <div class="message-content">
                                <h4>Hi! I'm TMCBot</h4>
                                <p>I'm here to help you find the perfect cables and accessories. Ask me about products, compatibility, or any technical questions!</p>
                                <div id="welcome-tickets-info" style="display: none;">
                                    <p><strong>I can see you have active support tickets. Feel free to ask me about them!</strong></p>
                                </div>
                            </div>
                        </div>
                    </div>

                    <div class="typing-indicator" id="typing-indicator" style="display: none;">
                        <div class="typing-dots">
                            <span></span>
                            <span></span>
                            <span></span>
                        </div>
                        <span>AI agent is typing...</span>
                    </div>
                    
                    <form id="chat-form" class="chat-input-form" onsubmit="event.preventDefault(); return false;" novalidate>
                        <div class="input-group">
                            <textarea 
                                id="message-input" 
                                placeholder="Type your message here..." 
                                rows="1"
                                maxlength="1000"
                            ></textarea>
                            <button type="submit" id="send-button" class="send-button" disabled>
                                <span class="send-icon">➤</span>
                            </button>
                            <button type="button" id="clear-chat" class="action-button clear-chat" title="Clear Chat History">
                                Clear
                            </button>
                            <button type="button" id="create-ticket-button" class="action-button" title="Create Support Ticket">
                                Create Ticket
                            </button>
                            <button type="button" id="end-conversation-button" class="action-button end-conversation" title="End Conversation & Save Summary">
                                End Chat
                            </button>
                        </div>
                    </form>
                </div>
            </div>
            
            <!-- Ticket Sidebar -->
            <div class="glassmorphism-container ticket-sidebar" id="ticket-sidebar">
                <div class="sidebar-header">
                    <h3>Your Tickets</h3>
                    <button id="toggle-sidebar" class="toggle-button">↔</button>
                </div>
                
                <div id="user-tickets-loading" class="loading-state" style="display: none;">
                    <div class="spinner-small"></div>
                    <p>Loading tickets...</p>
                </div>
                
                <div id="no-tickets" class="no-tickets-state">
                    <p>No active tickets</p>
                    <button class="btn btn-primary" onclick="showCreateTicketModal()">Create Ticket</button>
                </div>
                
                <div id="user-tickets-list" class="tickets-list"></div>
                
                <div class="sidebar-actions">
                    <button class="btn btn-outline" onclick="refreshUserTickets()">Refresh</button>
                    <button class="btn btn-primary" onclick="showCreateTicketModal()">New Ticket</button>
                </div>
            </div>
        </div>
    </div>
</section>

<!-- Create Ticket Modal -->
<div id="create-ticket-modal" class="modal" style="display: none;">
    <div class="modal-content glassmorphism-container">
        <div class="modal-header">
            <h3>Create Support Ticket</h3>
            <button class="modal-close" onclick="closeCreateTicketModal()">&times;</button>
        </div>
        
        <form id="create-ticket-form" class="modal-body">
            <div class="form-group">
                <label for="ticket-subject">Subject *</label>
                <input type="text" id="ticket-subject" placeholder="Brief description of your issue" required>
            </div>
            
            <div class="form-group">
                <label for="ticket-category">Category</label>
                <select id="ticket-category">
                    <option value="General">General Support</option>
                    <option value="Technical">Technical Issue</option>
                    <option value="Product">Product Question</option>
                    <option value="Billing">Billing</option>
                    <option value="Shipping">Shipping & Delivery</option>
                </select>
            </div>
            
            <div class="form-group">
                <label for="ticket-priority">Priority</label>
                <select id="ticket-priority">
                    <option value="low">Low</option>
                    <option value="medium" selected>Medium</option>
                    <option value="high">High</option>
                    <option value="urgent">Urgent</option>
                </select>
            </div>
            
            <div class="form-group">
                <label for="ticket-description">Description *</label>
                <textarea id="ticket-description" rows="4" placeholder="Please describe your issue in detail..." required></textarea>
            </div>
            
            <div class="form-group">
                <label>
                    <input type="checkbox" id="include-chat-context" checked>
                    Include recent chat conversation in ticket
                </label>
            </div>
            
            <div class="modal-actions">
                <button type="button" class="btn btn-outline" onclick="closeCreateTicketModal()">Cancel</button>
                <button type="submit" class="btn btn-primary">Create Ticket</button>
            </div>
        </form>
    </div>
</div>
{% endblock %}

{% block extra_styles %}
<style>
/* Chat Layout with Sidebar */
.chat-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.chat-main {
    min-height: 600px;
}

.ticket-sidebar {
    background: rgba(255, 255, 255, 0.12);
    padding: 1.5rem;
    height: fit-content;
    max-height: 80vh;
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.sidebar-header h3 {
    color: white;
    margin: 0;
    font-size: 1.2rem;
}

.toggle-button {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
}

.loading-state {
    text-align: center;
    padding: 2rem;
    color: rgba(255,255,255,0.8);
}

.spinner-small {
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    margin: 0 auto 0.5rem;
}

.no-tickets-state {
    text-align: center;
    padding: 2rem 1rem;
    color: rgba(255,255,255,0.8);
}

.tickets-list {
    max-height: 400px;
    overflow-y: auto;
}

.ticket-item {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ticket-item:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-1px);
}

.ticket-item h4 {
    color: white;
    font-size: 0.9rem;
    margin: 0 0 0.5rem 0;
}

.ticket-item p {
    color: rgba(255,255,255,0.8);
    font-size: 0.8rem;
    margin: 0.25rem 0;
}

.ticket-status {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
}

.status-open { background: rgba(52, 152, 219, 0.8); color: white; }
.status-in_progress { background: rgba(241, 196, 15, 0.8); color: white; }
.status-resolved { background: rgba(46, 204, 113, 0.8); color: white; }

.sidebar-actions {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    display: flex;
    gap: 0.5rem;
}

.sidebar-actions .btn {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.8rem;
}

/* Enhanced Input Group */
.input-group {
    position: relative;
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
}

.action-button {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.75rem;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    max-width: 500px;
    width: 95%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 2rem;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    color: white;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.modal-close:hover {
    opacity: 1;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    color: rgba(255,255,255,0.9);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    color: white;
    font-size: 0.9rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.6);
}

.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn:hover {
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .chat-layout {
        grid-template-columns: 1fr;
    }
    
    .ticket-sidebar {
        order: -1;
        max-height: 300px;
    }
    
    .sidebar-actions {
        flex-direction: column;
    }
    
    .modal-content {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
}

/* Sidebar collapsed state */
.ticket-sidebar.collapsed {
    width: 60px;
    padding: 1rem 0.5rem;
}

.ticket-sidebar.collapsed .sidebar-header h3,
.ticket-sidebar.collapsed .tickets-list,
.ticket-sidebar.collapsed .sidebar-actions,
.ticket-sidebar.collapsed .no-tickets-state {
    display: none;
}
</style>
{% endblock %}

{% block extra_scripts %}
<script src="{{ url_for('static', filename='chat.js') }}?v={{ cache_bust }}"></script>
<script>
// Global variables for ticket integration
let currentConversationId = null;
let userTickets = [];

document.addEventListener('DOMContentLoaded', function() {
    // Auto-resize textarea
    const messageInput = document.getElementById('message-input');
    messageInput.addEventListener('input', function() {
        this.style.height = 'auto';
        this.style.height = Math.min(this.scrollHeight, 120) + 'px';
        
        // Enable/disable send button
        const sendButton = document.getElementById('send-button');
        sendButton.disabled = this.value.trim().length === 0;
    });
    
    // Load user tickets if logged in
    loadUserTickets();
    
    // Set up create ticket form
    setupCreateTicketModal();
});

function loadUserTickets() {
    const loading = document.getElementById('user-tickets-loading');
    const noTickets = document.getElementById('no-tickets');
    const ticketsList = document.getElementById('user-tickets-list');
    
    loading.style.display = 'block';
    noTickets.style.display = 'none';
    ticketsList.innerHTML = '';
    
    fetch('/api/chat/user-tickets')
        .then(response => response.json())
        .then(data => {
            loading.style.display = 'none';
            
            if (data.success && data.tickets.length > 0) {
                userTickets = data.tickets;
                displayUserTickets(data.tickets);
                
                // Show ticket info in welcome message
                const welcomeTicketsInfo = document.getElementById('welcome-tickets-info');
                if (welcomeTicketsInfo) {
                    welcomeTicketsInfo.style.display = 'block';
                }
            } else {
                noTickets.style.display = 'block';
            }
        })
        .catch(error => {
            loading.style.display = 'none';
            noTickets.style.display = 'block';
            console.error('Error loading user tickets:', error);
        });
}

function displayUserTickets(tickets) {
    const ticketsList = document.getElementById('user-tickets-list');
    ticketsList.innerHTML = '';
    
    tickets.forEach(ticket => {
        const ticketElement = createTicketElement(ticket);
        ticketsList.appendChild(ticketElement);
    });
}

function createTicketElement(ticket) {
    const div = document.createElement('div');
    div.className = 'ticket-item';
    div.onclick = () => viewTicketInChat(ticket);
    
    const createdDate = new Date(ticket.created_at).toLocaleDateString();
    
    div.innerHTML = `
        <h4>#${ticket.number}: ${ticket.subject}</h4>
        <p><span class="ticket-status status-${ticket.status}">${ticket.status.replace('_', ' ')}</span></p>
        <p><strong>Category:</strong> ${ticket.category}</p>
        <p><strong>Priority:</strong> ${ticket.priority}</p>
        <p><strong>Created:</strong> ${createdDate}</p>
        ${ticket.assigned_agent ? `<p><strong>Agent:</strong> ${ticket.assigned_agent}</p>` : ''}
    `;
    
    return div;
}

function viewTicketInChat(ticket) {
    // Add ticket info to chat
    const ticketMessage = `I'd like to discuss my ticket #${ticket.number}: "${ticket.subject}". Status: ${ticket.status}, Priority: ${ticket.priority}`;
    
    const messageInput = document.getElementById('message-input');
    messageInput.value = ticketMessage;
    messageInput.focus();
    
    // Trigger input event to enable send button
    messageInput.dispatchEvent(new Event('input'));
}

function refreshUserTickets() {
    loadUserTickets();
}

function showCreateTicketModal() {
    document.getElementById('create-ticket-modal').style.display = 'flex';
}

function closeCreateTicketModal() {
    document.getElementById('create-ticket-modal').style.display = 'none';
    document.getElementById('create-ticket-form').reset();
}

function setupCreateTicketModal() {
    const form = document.getElementById('create-ticket-form');
    
    form.addEventListener('submit', function(e) {
        e.preventDefault();
        
        const subject = document.getElementById('ticket-subject').value.trim();
        const description = document.getElementById('ticket-description').value.trim();
        const category = document.getElementById('ticket-category').value;
        const priority = document.getElementById('ticket-priority').value;
        const includeChat = document.getElementById('include-chat-context').checked;
        
        if (!subject || !description) {
            alert('Please fill in all required fields');
            return;
        }
        
        const ticketData = {
            subject,
            description,
            category,
            priority,
            conversation_id: includeChat ? currentConversationId : null
        };
        
        const csrfToken = document.querySelector('meta[name="csrf-token"]').getAttribute('content');
        
        fetch('/api/chat/create-ticket', {
            method: 'POST',
            headers: { 
                'Content-Type': 'application/json',
                'X-CSRFToken': csrfToken
            },
            body: JSON.stringify(ticketData)
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                alert(data.message);
                closeCreateTicketModal();
                loadUserTickets(); // Refresh ticket list
                
                // Add success message to chat
                addMessageToChat('system', `✅ ${data.message}`);
            } else {
                alert('Failed to create ticket: ' + data.error);
            }
        })
        .catch(error => {
            console.error('Error creating ticket:', error);
            alert('Error creating ticket. Please try again.');
        });
    });
}

// Update conversation ID when chat starts
function updateConversationId(conversationId) {
    currentConversationId = conversationId;
}

// Add message to chat (utility function)
function addMessageToChat(role, content) {
    const chatMessages = document.getElementById('chat-messages');
    const messageDiv = document.createElement('div');
    messageDiv.className = `message ${role}-message`;
    
    if (role === 'system') {
        messageDiv.innerHTML = `
            <div class="system-message">
                <div class="message-content">
                    ${content}
                </div>
            </div>
        `;
    }
    
    chatMessages.appendChild(messageDiv);
    chatMessages.scrollTop = chatMessages.scrollHeight;
}

// Toggle sidebar
document.getElementById('toggle-sidebar').addEventListener('click', function() {
    const sidebar = document.getElementById('ticket-sidebar');
    sidebar.classList.toggle('collapsed');
});

// Close modal on outside click
document.getElementById('create-ticket-modal').addEventListener('click', function(e) {
    if (e.target === this) {
        closeCreateTicketModal();
    }
});
</script>
{% endblock %}