# UI COMPONENTS MODULE
import gradio as gr
import logging
from datetime import datetime
from modules.utils import ErrorManager, SystemState

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger('ui_components')

def create_error_alert():
    """Create the error alert UI component"""
    with gr.Blocks() as error_container:
        # Hidden error alert that will be shown when errors occur
        error_display = gr.HTML(
            value="", 
            visible=False, 
            elem_id="error-alert",
            elem_classes="error-alert-component"
        )
        
        # CSS for error styling
        gr.HTML("""
        <style>
        .error-alert-container {
            background-color: #FFF0F0;
            border-left: 4px solid #FF5555;
            padding: 12px 16px;
            margin: 12px 0;
            position: relative;
            border-radius: 4px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            animation: fadeIn 0.3s ease-in-out;
            max-width: 100%;
            word-break: break-word;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .error-alert-container h3 {
            margin-top: 0; 
            color: #D32F2F;
            padding-right: 20px;
        }
        
        .error-alert-container .close-error {
            position: absolute;
            right: 10px;
            top: 10px;
            background: none;
            border: none;
            font-size: 18px;
            cursor: pointer;
            color: #555;
            padding: 0;
            line-height: 1;
        }
        
        .error-alert-container .close-error:hover {
            color: #000;
        }
        
        .error-alert-container pre {
            background-color: #F8F8F8;
            padding: 10px;
            border-radius: 4px;
            overflow-x: auto;
            margin-top: 8px;
            white-space: pre-wrap;
            font-size: 12px;
            color: #333;
        }
        </style>
        """)
        
        # JavaScript for interactive behavior
        gr.HTML("""
        <script>
        // Function to set up error alert click handlers
        function setupErrorAlert() {
            // Check every second if error alert exists and add the close button logic
            const checkInterval = setInterval(function() {
                const errorAlert = document.getElementById('error-alert');
                if (errorAlert) {
                    // Add event delegation for clicks on close button
                    errorAlert.addEventListener('click', function(e) {
                        if (e.target.classList.contains('close-error')) {
                            // Find the container and hide it
                            const container = e.target.closest('.error-alert-container');
                            if (container) {
                                errorAlert.innerHTML = '';
                                errorAlert.style.display = 'none';
                            }
                        }
                    });
                    
                    // Clear interval once we've set up the handler
                    clearInterval(checkInterval);
                }
            }, 500);
        }
        
        // Set up when DOM is ready
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', setupErrorAlert);
        } else {
            setupErrorAlert();
        }
        </script>
        """)
    
    def update_error_display(error_obj):
        """Update the error display with an error object"""
        if not error_obj:
            return gr.HTML.update(value="", visible=False)
        
        # Format the error as HTML
        error_html = f"""
        <div class="error-alert-container">
            <button class="close-error" title="Dismiss">✕</button>
            <h3>⚠️ {error_obj['type']} in {error_obj['module'] or 'Unknown Module'}</h3>
            <p><strong>Error:</strong> {error_obj['message']}</p>
            <p style="margin: 4px 0; font-size: 0.9em; color: #777;">Time: {error_obj['timestamp']}</p>
            
            <details>
                <summary style="cursor: pointer; color: #0066CC;">Show Technical Details</summary>
                <pre>{error_obj['details'] if error_obj['details'] else 'No additional details available'}</pre>
            </details>
        </div>
        """
        
        # Update the display
        return gr.HTML.update(value=error_html, visible=True)
    
    # Register the update function to be called when errors occur
    ErrorManager().add_listener(lambda err: error_display.update(update_error_display(err)))
    
    return error_container

def create_status_bar():
    """Create a status bar showing system status"""
    system_state = SystemState()
    
    with gr.Row(elem_classes="status-bar") as status_bar:
        gr.HTML("""
        <style>
        .status-bar {
            background-color: #f5f5f5;
            border-bottom: 1px solid #ddd;
            padding: 8px 16px;
            margin-bottom: 10px;
        }
        
        .status-indicator {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: 6px;
        }
        
        .status-online {
            background-color: #4CAF50;
        }
        
        .status-offline {
            background-color: #F44336;
        }
        
        .status-text {
            font-size: 14px;
            font-weight: 500;
        }
        </style>
        """)
        
        with gr.Column(scale=1):
            status_indicator = gr.HTML(
                value=f"""
                <div>
                    <span class="status-indicator {'status-online' if system_state.online else 'status-offline'}"></span>
                    <span class="status-text">System {'Online' if system_state.online else 'Offline'}</span>
                </div>
                """
            )
        
        with gr.Column(scale=1):
            mode_indicator = gr.HTML(
                value=f"""
                <div>
                    <span class="status-text">Mode: {'Demo' if system_state.demo_mode else 'Production'}</span>
                    {' | <span class="status-text">Debug: On</span>' if system_state.debug_mode else ''}
                </div>
                """
            )
        
        with gr.Column(scale=1):
            time_indicator = gr.HTML(
                value=f"""
                <div>
                    <span class="status-text">Current Time: {datetime.now().strftime("%Y-%m-%d %H:%M:%S")}</span>
                </div>
                """
            )
    
    # Hidden refresh buttons that get triggered by JavaScript
    with gr.Row(visible=False):
        status_refresh_btn = gr.Button("Refresh Status", elem_id="status_refresh_btn")
        mode_refresh_btn = gr.Button("Refresh Mode", elem_id="mode_refresh_btn")
        time_refresh_btn = gr.Button("Refresh Time", elem_id="time_refresh_btn")
    
    # Connect refresh buttons to update functions
    status_refresh_btn.click(
        lambda: gr.HTML.update(value=f"""
        <div>
            <span class="status-indicator {'status-online' if SystemState().online else 'status-offline'}"></span>
            <span class="status-text">System {'Online' if SystemState().online else 'Offline'}</span>
        </div>
        """),
        outputs=[status_indicator]
    )
    
    mode_refresh_btn.click(
        lambda: gr.HTML.update(value=f"""
        <div>
            <span class="status-text">Mode: {'Demo' if SystemState().demo_mode else 'Production'}</span>
            {' | <span class="status-text">Debug: On</span>' if SystemState().debug_mode else ''}
        </div>
        """),
        outputs=[mode_indicator]
    )
    
    time_refresh_btn.click(
        lambda: gr.HTML.update(value=f"""
        <div>
            <span class="status-text">Current Time: {datetime.now().strftime("%Y-%m-%d %H:%M:%S")}</span>
        </div>
        """),
        outputs=[time_indicator]
    )
    
    # JavaScript to auto-update every 30 seconds
    gr.HTML("""
    <script>
    // Update time every 30 seconds
    setInterval(function() {
        try {
            document.getElementById("status_refresh_btn").click();
            document.getElementById("mode_refresh_btn").click();
            document.getElementById("time_refresh_btn").click();
        } catch (e) {
            console.error('Error refreshing status:', e);
        }
    }, 30000);
    </script>
    """)
    
    return status_bar