"""
Brand-specific theming module for the AI Messaging System Visualization Tool.

Provides dynamic color schemes and styling based on selected brand.
"""

import streamlit as st
from typing import Dict, Tuple

# Brand color definitions (primary, secondary, accent)
BRAND_COLORS = {
    "base": {
        "primary": "#FFD700",      # Gold
        "secondary": "#2C2C2C",    # Dark gray
        "accent": "#1A1A1A",       # Black
        "text": "#FFFFFF",         # White
        "background": "#0D0D0D",   # Very dark
        "sidebar_bg": "#8B7500"    # Darker gold for sidebar
    },
    "drumeo": {
        "primary": "#5DADE2",      # Light blue
        "secondary": "#FFD700",    # Gold
        "accent": "#2874A6",       # Darker blue
        "text": "#FFFFFF",         # White
        "background": "#1C2833",   # Dark blue-gray
        "sidebar_bg": "#1A4D6B"    # Darker blue for sidebar
    },
    "pianote": {
        "primary": "#EC7063",      # Light red
        "secondary": "#FFD700",    # Gold
        "accent": "#C0392B",       # Darker red
        "text": "#FFFFFF",         # White
        "background": "#1C1C1C",   # Dark
        "sidebar_bg": "#8B2500"    # Darker red for sidebar
    },
    "guitareo": {
        "primary": "#58D68D",      # Light green
        "secondary": "#FFD700",    # Gold
        "accent": "#229954",       # Darker green
        "text": "#FFFFFF",         # White
        "background": "#1C2E1F",   # Dark green-gray
        "sidebar_bg": "#1B5E20"    # Darker green for sidebar
    },
    "singeo": {
        "primary": "#BB8FCE",      # Light purple
        "secondary": "#FFD700",    # Gold
        "accent": "#7D3C98",       # Darker purple
        "text": "#FFFFFF",         # White
        "background": "#1F1926",   # Dark purple-gray
        "sidebar_bg": "#4A148C"    # Darker purple for sidebar
    }
}

# Brand emojis
BRAND_EMOJIS = {
    "drumeo": "🥁",
    "pianote": "🎹",
    "guitareo": "🎸",
    "singeo": "🎤"
}


def get_brand_theme(brand: str) -> Dict[str, str]:
    """
    Get color theme for specified brand.

    Args:
        brand: Brand name (drumeo, pianote, guitareo, singeo)

    Returns:
        dict: Color theme dictionary
    """
    brand_lower = brand.lower() if brand else "base"
    return BRAND_COLORS.get(brand_lower, BRAND_COLORS["base"])


def get_brand_emoji(brand: str) -> str:
    """
    Get emoji for specified brand.

    Args:
        brand: Brand name

    Returns:
        str: Brand emoji
    """
    brand_lower = brand.lower() if brand else ""
    return BRAND_EMOJIS.get(brand_lower, "🎵")


def apply_theme(brand: str = None):
    """
    Apply brand-specific theme to Streamlit app.

    Args:
        brand: Brand name (optional, uses session state if not provided)
    """
    if brand is None:
        brand = st.session_state.get("selected_brand", "base")

    theme = get_brand_theme(brand)

    # Custom CSS for brand theming
    css = f"""
    <style>
    /* Global styles */
    .stApp {{
        background-color: {theme['background']};
    }}

    /* Text colors */
    h1, h2, h3, h4, h5, h6 {{
        color: {theme['primary']} !important;
    }}

    p, span, div {{
        color: {theme['text']} !important;
    }}

    /* Button styles */
    .stButton > button {{
        background-color: {theme['primary']};
        color: {theme['background']};
        border: none;
        border-radius: 8px;
        padding: 0.5rem 1rem;
        font-weight: 600;
        transition: all 0.3s ease;
    }}

    .stButton > button:hover {{
        background-color: {theme['secondary']};
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    }}

    /* Download button */
    .stDownloadButton > button {{
        background-color: {theme['accent']};
        color: {theme['text']};
        border-radius: 8px;
        font-weight: 600;
    }}

    /* Input fields */
    .stTextInput > div > div > input,
    .stTextArea > div > div > textarea,
    .stNumberInput > div > div > input {{
        background-color: {theme['secondary']};
        color: {theme['text']};
        border: 1px solid {theme['primary']};
        border-radius: 5px;
    }}

    /* Select boxes */
    .stSelectbox > div > div {{
        background-color: {theme['secondary']};
        color: {theme['text']};
        border-radius: 5px;
    }}

    /* Multiselect */
    .stMultiSelect > div > div {{
        background-color: {theme['secondary']};
        border-radius: 5px;
    }}

    /* Tabs */
    .stTabs [data-baseweb="tab-list"] {{
        gap: 8px;
    }}

    .stTabs [data-baseweb="tab"] {{
        background-color: {theme['secondary']};
        color: {theme['text']};
        border-radius: 5px 5px 0 0;
        padding: 10px 20px;
        font-weight: 600;
    }}

    .stTabs [aria-selected="true"] {{
        background-color: {theme['primary']};
        color: {theme['background']};
    }}

    /* Progress bar */
    .stProgress > div > div > div {{
        background-color: {theme['primary']};
    }}

    /* Expanders */
    .streamlit-expanderHeader {{
        background-color: {theme['secondary']};
        color: {theme['primary']};
        border-radius: 5px;
        font-weight: 600;
    }}

    /* Cards/Containers */
    .element-container {{
        background-color: transparent;
    }}

    /* Sidebar */
    [data-testid="stSidebar"] {{
        background-color: {theme['sidebar_bg']};
    }}

    [data-testid="stSidebar"] h1,
    [data-testid="stSidebar"] h2,
    [data-testid="stSidebar"] h3 {{
        color: {theme['text']} !important;
    }}

    [data-testid="stSidebar"] p,
    [data-testid="stSidebar"] span,
    [data-testid="stSidebar"] div,
    [data-testid="stSidebar"] label {{
        color: {theme['text']} !important;
    }}

    /* Metrics */
    [data-testid="stMetricValue"] {{
        color: {theme['primary']} !important;
        font-size: 2rem;
        font-weight: bold;
    }}

    /* Divider */
    hr {{
        border-color: {theme['primary']};
        opacity: 0.3;
    }}

    /* Checkbox */
    .stCheckbox {{
        color: {theme['text']};
    }}

    /* Radio */
    .stRadio > div {{
        color: {theme['text']};
    }}

    /* Success/Info/Warning/Error boxes */
    .stSuccess {{
        background-color: rgba(88, 214, 141, 0.1);
        color: {theme['text']};
    }}

    .stInfo {{
        background-color: rgba(93, 173, 226, 0.1);
        color: {theme['text']};
    }}

    .stWarning {{
        background-color: rgba(255, 215, 0, 0.1);
        color: {theme['text']};
    }}

    .stError {{
        background-color: rgba(236, 112, 99, 0.1);
        color: {theme['text']};
    }}

    /* DataFrames */
    .dataframe {{
        border: 1px solid {theme['primary']};
    }}

    /* Custom card styling */
    .message-card {{
        background-color: {theme['secondary']};
        border-left: 4px solid {theme['primary']};
        border-radius: 8px;
        padding: 1rem;
        margin: 0.5rem 0;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }}

    .message-card:hover {{
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        transform: translateX(4px);
        transition: all 0.3s ease;
    }}

    /* Small text */
    .small {{
        font-size: 0.85rem;
        opacity: 0.7;
    }}

    /* Badge styles */
    .badge {{
        display: inline-block;
        padding: 0.25rem 0.5rem;
        border-radius: 12px;
        font-size: 0.75rem;
        font-weight: 600;
        background-color: {theme['accent']};
        color: {theme['text']};
    }}
    </style>
    """

    st.markdown(css, unsafe_allow_html=True)


def create_card(content: str, key: str = None) -> None:
    """
    Create a styled card container.

    Args:
        content: HTML content to display in card
        key: Optional unique key for the card
    """
    st.markdown(
        f'<div class="message-card">{content}</div>',
        unsafe_allow_html=True
    )


def create_badge(text: str, color: str = None) -> str:
    """
    Create a styled badge element.

    Args:
        text: Badge text
        color: Optional custom color

    Returns:
        str: HTML for badge
    """
    style = f'background-color: {color};' if color else ''
    return f'<span class="badge" style="{style}">{text}</span>'