"""
Enterprise UI Theme for CX AI Agent
Professional styling and custom Gradio theme
"""
import gradio as gr


def get_enterprise_theme():
    """
    Return enterprise-grade Gradio theme with professional styling
    """
    return gr.themes.Soft(
        primary_hue="blue",
        secondary_hue="slate",
        neutral_hue="slate",
        font=("Inter", gr.themes.GoogleFont("Inter"), "system-ui", "sans-serif"),
        font_mono=("'IBM Plex Mono'", gr.themes.GoogleFont("IBM Plex Mono"), "monospace"),
    ).set(
        # Button styling
        button_primary_background_fill="*primary_600",
        button_primary_background_fill_hover="*primary_700",
        button_primary_text_color="white",
        button_secondary_background_fill="*neutral_100",
        button_secondary_background_fill_hover="*neutral_200",
        button_secondary_text_color="*neutral_800",

        # Input styling
        input_background_fill="white",
        input_border_color="*neutral_300",
        input_shadow="0 1px 2px 0 rgba(0, 0, 0, 0.05)",

        # Container styling
        block_background_fill="white",
        block_border_width="1px",
        block_border_color="*neutral_200",
        block_shadow="0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1)",
        block_radius="0.75rem",
        block_padding="1.5rem",

        # Panel styling
        panel_background_fill="*neutral_50",
        panel_border_width="1px",
        panel_border_color="*neutral_200",
    )


def get_custom_css():
    """
    Return custom CSS for enterprise styling
    """
    return """
    /* Enterprise theme customizations */
    .gradio-container {
        max-width: 1600px !important;
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
    }

    /* Header styling */
    .app-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        padding: 2rem;
        color: white;
        border-radius: 0.75rem;
        margin-bottom: 2rem;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    }

    .app-header h1 {
        margin: 0;
        font-size: 2rem;
        font-weight: 700;
    }

    .app-header p {
        margin: 0.5rem 0 0 0;
        opacity: 0.9;
        font-size: 1rem;
    }

    /* Navigation tabs */
    .nav-tabs {
        display: flex;
        gap: 0.5rem;
        margin-bottom: 2rem;
        border-bottom: 2px solid #e5e7eb;
        padding-bottom: 0;
    }

    .nav-tab {
        padding: 0.75rem 1.5rem !important;
        border: none !important;
        border-bottom: 3px solid transparent !important;
        background: transparent !important;
        font-weight: 500 !important;
        color: #6b7280 !important;
        cursor: pointer;
        transition: all 0.2s;
    }

    .nav-tab:hover {
        color: #374151 !important;
        background: #f3f4f6 !important;
        border-radius: 0.5rem 0.5rem 0 0 !important;
    }

    .nav-tab.active {
        color: #3b82f6 !important;
        border-bottom-color: #3b82f6 !important;
        background: #eff6ff !important;
    }

    /* Metric cards */
    .metric-card {
        background: white;
        border: 1px solid #e5e7eb;
        border-radius: 0.75rem;
        padding: 1.5rem;
        box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
        transition: transform 0.2s, box-shadow 0.2s;
    }

    .metric-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    }

    .metric-value {
        font-size: 2.25rem;
        font-weight: 700;
        color: #111827;
        margin: 0.5rem 0;
    }

    .metric-label {
        font-size: 0.875rem;
        font-weight: 500;
        color: #6b7280;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

    .metric-change {
        font-size: 0.875rem;
        font-weight: 500;
        margin-top: 0.5rem;
    }

    .metric-change.positive {
        color: #10b981;
    }

    .metric-change.negative {
        color: #ef4444;
    }

    /* Status badges */
    .status-badge {
        display: inline-block;
        padding: 0.25rem 0.75rem;
        border-radius: 9999px;
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

    .status-active {
        background: #d1fae5;
        color: #065f46;
    }

    .status-draft {
        background: #e5e7eb;
        color: #374151;
    }

    .status-paused {
        background: #fef3c7;
        color: #92400e;
    }

    .status-completed {
        background: #dbeafe;
        color: #1e40af;
    }

    /* Data tables */
    .data-table {
        width: 100%;
        border-collapse: collapse;
        background: white;
        border-radius: 0.75rem;
        overflow: hidden;
        box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    }

    .data-table thead {
        background: #f9fafb;
        border-bottom: 2px solid #e5e7eb;
    }

    .data-table th {
        padding: 0.75rem 1rem;
        text-align: left;
        font-size: 0.75rem;
        font-weight: 600;
        color: #6b7280;
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

    .data-table td {
        padding: 1rem;
        border-bottom: 1px solid #f3f4f6;
        color: #374151;
    }

    .data-table tr:hover {
        background: #f9fafb;
    }

    .data-table tr:last-child td {
        border-bottom: none;
    }

    /* Progress bars */
    .progress-bar {
        width: 100%;
        height: 0.5rem;
        background: #e5e7eb;
        border-radius: 9999px;
        overflow: hidden;
    }

    .progress-fill {
        height: 100%;
        background: linear-gradient(90deg, #3b82f6 0%, #8b5cf6 100%);
        border-radius: 9999px;
        transition: width 0.3s ease;
    }

    /* Activity feed */
    .activity-feed {
        background: white;
        border: 1px solid #e5e7eb;
        border-radius: 0.75rem;
        padding: 1.5rem;
    }

    .activity-item {
        display: flex;
        gap: 1rem;
        padding: 1rem 0;
        border-bottom: 1px solid #f3f4f6;
    }

    .activity-item:last-child {
        border-bottom: none;
    }

    .activity-icon {
        width: 2.5rem;
        height: 2.5rem;
        border-radius: 9999px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        flex-shrink: 0;
    }

    .activity-content {
        flex: 1;
    }

    .activity-title {
        font-weight: 500;
        color: #111827;
        margin-bottom: 0.25rem;
    }

    .activity-meta {
        font-size: 0.875rem;
        color: #6b7280;
    }

    /* Charts */
    .chart-container {
        background: white;
        border: 1px solid #e5e7eb;
        border-radius: 0.75rem;
        padding: 1.5rem;
        box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    }

    .chart-title {
        font-size: 1.125rem;
        font-weight: 600;
        color: #111827;
        margin-bottom: 1rem;
    }

    /* Forms */
    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-label {
        display: block;
        font-size: 0.875rem;
        font-weight: 500;
        color: #374151;
        margin-bottom: 0.5rem;
    }

    .form-help {
        font-size: 0.75rem;
        color: #6b7280;
        margin-top: 0.25rem;
    }

    /* Empty states */
    .empty-state {
        text-align: center;
        padding: 4rem 2rem;
        color: #6b7280;
    }

    .empty-state-icon {
        font-size: 3rem;
        margin-bottom: 1rem;
        opacity: 0.5;
    }

    .empty-state-title {
        font-size: 1.25rem;
        font-weight: 600;
        color: #374151;
        margin-bottom: 0.5rem;
    }

    .empty-state-description {
        font-size: 0.875rem;
        max-width: 28rem;
        margin: 0 auto 1.5rem;
    }

    /* Loading states */
    .loading-spinner {
        display: inline-block;
        width: 1.5rem;
        height: 1.5rem;
        border: 3px solid #e5e7eb;
        border-top-color: #3b82f6;
        border-radius: 50%;
        animation: spin 0.6s linear infinite;
    }

    @keyframes spin {
        to { transform: rotate(360deg); }
    }

    /* Utility classes */
    .text-center { text-align: center; }
    .text-right { text-align: right; }
    .text-sm { font-size: 0.875rem; }
    .text-xs { font-size: 0.75rem; }
    .font-semibold { font-weight: 600; }
    .font-bold { font-weight: 700; }
    .mb-2 { margin-bottom: 0.5rem; }
    .mb-4 { margin-bottom: 1rem; }
    .mt-2 { margin-top: 0.5rem; }
    .mt-4 { margin-top: 1rem; }
    .p-4 { padding: 1rem; }
    .flex { display: flex; }
    .gap-2 { gap: 0.5rem; }
    .gap-4 { gap: 1rem; }
    .items-center { align-items: center; }
    .justify-between { justify-content: space-between; }
    """


def create_header():
    """Create enterprise header component"""
    return gr.HTML("""
        <div class="app-header">
            <h1>🤖 CX AI Agent - Enterprise Edition</h1>
            <p>Autonomous Multi-Agent Customer Experience Platform powered by MCP</p>
        </div>
    """)


def create_metric_card(label: str, value: str, change: str = None, change_positive: bool = True):
    """Create a metric card component"""
    change_class = "positive" if change_positive else "negative"
    change_arrow = "↑" if change_positive else "↓"
    change_html = f'<div class="metric-change {change_class}">{change_arrow} {change}</div>' if change else ""

    return f"""
        <div class="metric-card">
            <div class="metric-label">{label}</div>
            <div class="metric-value">{value}</div>
            {change_html}
        </div>
    """


def create_status_badge(status: str):
    """Create a status badge"""
    status_lower = status.lower()
    return f'<span class="status-badge status-{status_lower}">{status}</span>'


def create_progress_bar(percentage: float):
    """Create a progress bar"""
    return f"""
        <div class="progress-bar">
            <div class="progress-fill" style="width: {percentage}%"></div>
        </div>
    """


def create_empty_state(icon: str, title: str, description: str, action_text: str = None):
    """Create an empty state component"""
    action_html = f'<button class="btn btn-primary">{action_text}</button>' if action_text else ""

    return f"""
        <div class="empty-state">
            <div class="empty-state-icon">{icon}</div>
            <div class="empty-state-title">{title}</div>
            <div class="empty-state-description">{description}</div>
            {action_html}
        </div>
    """