"""Streamlit entry point — navigation controller."""

import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).parent.parent.parent.parent))

import streamlit as st

from customer_intelligence.app.components.styles import inject_css

st.set_page_config(
    page_title="Customer Intelligence Platform",
    page_icon="📊",
    layout="wide",
    initial_sidebar_state="expanded",
)
inject_css()

# Sidebar branding header
st.sidebar.markdown(
    '<div style="padding:14px 4px 18px;border-bottom:1px solid rgba(59,130,246,0.22);margin-bottom:6px;">'
    '<div style="font-size:1.1rem;font-weight:800;letter-spacing:-0.01em;line-height:1.3;">📊 Customer Intelligence</div>'
    '<div style="font-size:0.72rem;opacity:0.55;margin-top:4px;letter-spacing:0.03em;">OLIST E-COMMERCE ANALYTICS</div>'
    '</div>',
    unsafe_allow_html=True,
)

pg = st.navigation(
    {
        "": [
            st.Page("home.py", title="Home", icon="🏠", default=True),
        ],
        "Analytics": [
            st.Page("pages/01_overview.py", title="Overview", icon="📈"),
            st.Page("pages/02_revenue.py", title="Revenue", icon="💰"),
        ],
        "Customer": [
            st.Page("pages/03_customers.py", title="Customers", icon="👥"),
            st.Page("pages/06_segmentation.py", title="Segmentation", icon="🔢"),
            st.Page("pages/08_cohorts.py", title="Cohort Retention", icon="🔄"),
        ],
        "Operations": [
            st.Page("pages/04_delivery.py", title="Delivery", icon="🚚"),
            st.Page("pages/05_sellers.py", title="Sellers", icon="🏪"),
        ],
        "ML": [
            st.Page("pages/07_predictions.py", title="Predictions", icon="🤖"),
        ],
    }
)
pg.run()