class CustomCommandPanel extends HTMLElement {
    constructor() {
        super();
        this.isOpen = false;
    }
    
    connectedCallback() {
        this.attachShadow({ mode: 'open' });
        this.render();
        this.setupEventListeners();
    }
    
    render() {
        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    position: relative;
                }
                
                .panel-toggle {
                    position: fixed;
                    right: 0;
                    top: 50%;
                    transform: translateY(-50%);
                    background: #0ea5e9;
                    color: white;
                    padding: 1rem 0.5rem;
                    border-radius: 0.5rem 0 0 0.5rem;
                    writing-mode: vertical-rl;
                    cursor: pointer;
                    z-index: 40;
                    transition: all 0.3s ease;
                    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
                    font-weight: 600;
                    font-size: 0.875rem;
                }
                
                .panel-toggle:hover {
                    background: #0284c7;
                    padding-right: 0.75rem;
                }
                
                .command-panel {
                    position: fixed;
                    right: 0;
                    top: 0;
                    height: 100vh;
                    width: 400px;
                    background: white;
                    border-left: 1px solid #e5e7eb;
                    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.1);
                    transform: translateX(100%);
                    transition: transform 0.3s ease-in-out;
                    z-index: 50;
                    display: flex;
                    flex-direction: column;
                }
                
                .panel-open {
                    transform: translateX(0);
                }
                
                .panel-header {
                    padding: 1rem 1.5rem;
                    border-bottom: 1px solid #e5e7eb;
                    display: flex;
                    justify-content: space-between;
                    align-items: center;
                }
                
                .panel-title {
                    font-size: 1.25rem;
                    font-weight: 600;
                    color: #1f2937;
                }
                
                .close-button {
                    background: none;
                    border: none;
                    font-size: 1.5rem;
                    cursor: pointer;
                    color: #6b7280;
                    padding: 0.25rem;
                    border-radius: 0.25rem;
                }
                
                .close-button:hover {
                    background: #f3f4f6;
                }
                
                .search-container {
                    padding: 1rem 1.5rem;
                    border-bottom: 1px solid #e5e7eb;
                }
                
                .search-input {
                    width: 100%;
                    padding: 0.75rem 1rem;
                    border: 1px solid #d1d5db;
                    border-radius: 0.5rem;
                    font-size: 0.875rem;
                    focus:outline-none;
                    focus:ring-2;
                    focus:ring-primary-500;
                    focus:border-primary-500;
                }
                
                .search-input:focus {
                    outline: none;
                    border-color: #0ea5e9;
                    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
                }
                
                .content-area {
                    flex: 1;
                    overflow-y: auto;
                    padding: 1rem 1.5rem;
                }
                
                .section {
                    margin-bottom: 1.5rem;
                }
                
                .section-title {
                    font-size: 0.875rem;
                    font-weight: 600;
                    color: #374151;
                    margin-bottom: 0.75rem;
                    display: flex;
                    align-items: center;
                    justify-content: space-between;
                }
                
                .command-list {
                    list-style: none;
                }
                
                .command-item {
                    padding: 0.75rem 1rem;
                    border-radius: 0.5rem;
                    cursor: pointer;
                    margin-bottom: 0.25rem;
                    display: flex;
                    align-items: center;
                    transition: all 0.2s ease;
                }
                
                .command-item:hover {
                    background: #f9fafb;
                }
                
                .command-icon {
                    width: 20px;
                    height: 20px;
                    margin-right: 0.75rem;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                }
                
                .command-text {
                    flex: 1;
                }
                
                .command-name {
                    font-weight: 500;
                    color: #1f2937;
                    margin-bottom: 0.125rem;
                }
                
                .command-desc {
                    font-size: 0.75rem;
                    color: #6b7280;
                }
                
                .badge {
                    background: #eff6ff;
                    color: #1d4ed8;
                    padding: 0.125rem 0.5rem;
                    border-radius: 9999px;
                    font-size: 0.75rem;
                    font-weight: 500;
                }
                
                .context-suggestions {
                    background: #f0f9ff;
                    border-radius: 0.5rem;
                    padding: 1rem;
                    margin-top: 1rem;
                }
                
                .suggestion-title {
                    font-size: 0.875rem;
                    font-weight: 600;
                    color: #0369a1;
                    margin-bottom: 0.5rem;
                }
                
                .suggestion-list {
                    list-style: none;
                }
                
                .suggestion-item {
                    padding: 0.5rem;
                    border-radius: 0.25rem;
                    cursor: pointer;
                    font-size: 0.875rem;
                    color: #0369a1;
                    transition: background 0.2s ease;
                }
                
                .suggestion-item:hover {
                    background: #e0f2fe;
                }
            </style>
            <div class="panel-toggle" id="toggle-button">
                CMD
            </div>
            <div class="command-panel" id="command-panel">
                <div class="panel-header">
                    <div class="panel-title">Command Center</div>
                    <button class="close-button" id="close-button">×</button>
                </div>
                <div class="search-container">
                    <input type="text" class="search-input" placeholder="Search commands... Ctrl+K" id="search-input">
                </div>
                <div class="content-area">
                    <div class="section">
                        <div class="section-title">
                            <span>⏱ Recent Commands</span>
                        </div>
                        <ul class="command-list">
                            <li class="command-item">
                                <div class="command-icon">📝</div>
                                <div class="command-text">
                                    <div class="command-name">/task create "API integration" @john</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">↔️</div>
                                <div class="command-text">
                                    <div class="command-name">/bulk assign sprint:Q1-3 to:@alice</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">🗓️</div>
                                <div class="command-text">
                                    <div class="command-name">/schedule pto @bob from:3/1 to:3/5</div>
                                </div>
                            </li>
                        </ul>
                    </div>
                    
                    <div class="section">
                        <div class="section-title">
                            <span>📚 Command Templates</span>
                        </div>
                        <ul class="command-list">
                            <li class="command-item">
                                <div class="command-icon">📝</div>
                                <div class="command-text">
                                    <div class="command-name">Create Task</div>
                                    <div class="command-desc">Create a new task with specified details</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">↔️</div>
                                <div class="command-text">
                                    <div class="command-name">Move Task</div>
                                    <div class="command-desc">Move task to different date/assignee</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">🔄</div>
                                <div class="command-text">
                                    <div class="command-name">Update Status</div>
                                    <div class="command-desc">Update task properties</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">🗑️</div>
                                <div class="command-text">
                                    <div class="command-name">Delete Task</div>
                                    <div class="command-desc">Delete specific task</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">🗓️</div>
                                <div class="command-text">
                                    <div class="command-name">Scheduling (6 commands)</div>
                                </div>
                            </li>
                            <li class="command-item">
                                <div class="command-icon">📋</div>
                                <div class="command-text">
                                    <div class="command-name">Multi-Task Operations (8 commands)</div>
                                </div>
                            </li>
                        </ul>
                    </div>
                    
                    <div class="context-suggestions">
                        <div class="suggestion-title">💡 Context Suggestions</div>
                        <div class="suggestion-desc">Based on your selection:</div>
                        <ul class="suggestion-list">
                            <li class="suggestion-item">• Assign 3 selected tasks to...</li>
                            <li class="suggestion-item">• Move selection to next sprint</li>
                            <li class="suggestion-item">• Mark selected as complete</li>
                        </ul>
                    </div>
                </div>
            </div>
        `;
    }
    
    setupEventListeners() {
        const toggleButton = this.shadowRoot.getElementById('toggle-button');
        const closeButton = this.shadowRoot.getElementById('close-button');
        const commandPanel = this.shadowRoot.getElementById('command-panel');
        const searchInput = this.shadowRoot.getElementById('search-input');
        
        toggleButton.addEventListener('click', () => {
            this.togglePanel();
        });
        
        closeButton.addEventListener('click', () => {
            this.closePanel();
        });
        
        // Close panel when clicking outside
        document.addEventListener('click', (event) => {
            if (this.isOpen && !commandPanel.contains(event.target) && !toggleButton.contains(event.target)) {
                this.closePanel();
            }
        });
        
        // Keyboard shortcuts
        document.addEventListener('keydown', (event) => {
            // Ctrl+K or Cmd+K to toggle panel
            if ((event.ctrlKey || event.metaKey) && event.key === 'k') {
                event.preventDefault();
                this.togglePanel();
            }
            
            // Escape to close panel
            if (event.key === 'Escape' && this.isOpen) {
                this.closePanel();
            }
        });
        
        // Focus search input when panel opens
        searchInput.addEventListener('focus', () => {
            // Handle autocomplete suggestions
        });
    }
    
    togglePanel() {
        this.isOpen = !this.isOpen;
        const panel = this.shadowRoot.getElementById('command-panel');
        const toggleButton = this.shadowRoot.getElementById('toggle-button');
        
        if (this.isOpen) {
            panel.classList.add('panel-open');
            toggleButton.textContent = '×';
        } else {
            panel.classList.remove('panel-open');
            toggleButton.textContent = 'CMD';
        }
    }
    
    openPanel(template = null) {
        this.isOpen = true;
        const panel = this.shadowRoot.getElementById('command-panel');
        const toggleButton = this.shadowRoot.getElementById('toggle-button');
        
        panel.classList.add('panel-open');
        toggleButton.textContent = '×';
        
        // If template specified, load that template
        if (template) {
            this.loadTemplate(template);
        }
    }
    
    closePanel() {
        this.isOpen = false;
        const panel = this.shadowRoot.getElementById('command-panel');
        const toggleButton = this.shadowRoot.getElementById('toggle-button');
        
        panel.classList.remove('panel-open');
        toggleButton.textContent = 'CMD';
    }
    
    loadTemplate(templateName) {
        // Load specific command template
        console.log('Loading template:', templateName);
    }
}

customElements.define('custom-command-panel', CustomCommandPanel);