from pathlib import Path
import sys
import streamlit as st

APP_DIR = Path(__file__).resolve().parent
if str(APP_DIR) not in sys.path:
    sys.path.insert(0, str(APP_DIR))

from utils.db import get_seasons  # noqa: E402

st.set_page_config(
    page_title="NBA Analytics",
    page_icon=":material/sports_basketball:",
    layout="wide",
)

# ============================================================
# GLOBAL SEASON STATE & SIDEBAR CONTROLS
# ============================================================
seasons = get_seasons()
season_options = seasons["season_start_year"].tolist()
season_labels = dict(zip(seasons["season_start_year"], seasons["season_display"]))

if "season" not in st.session_state or st.session_state["season"] not in season_labels:
    st.session_state["season"] = season_options[0]

with st.sidebar:
    st.markdown("### :material/sports_basketball: NBA Analytics")
    st.caption("ARENA NOCTURNE // TELEMETRY MARTS")
    st.selectbox(
        "Season",
        season_options,
        key="season",
        format_func=lambda x: season_labels.get(x, str(x)),
    )

# ============================================================
# NATIVE STREAMLIT MULTIPAGE NAVIGATION
# ============================================================
nav = st.navigation(
    {
        "League & Teams": [
            st.Page(
                "app_pages/overview.py",
                title="Overview",
                icon=":material/dashboard:",
                default=True,
            ),
            st.Page(
                "app_pages/teams.py",
                title="Teams",
                icon=":material/shield:",
            ),
            st.Page(
                "app_pages/head_to_head.py",
                title="Head to Head",
                icon=":material/swords:",
            ),
        ],
        "Players & Shooting": [
            st.Page(
                "app_pages/player_lab.py",
                title="Player Lab",
                icon=":material/science:",
            ),
            st.Page(
                "app_pages/shot_charts.py",
                title="Shot Charts",
                icon=":material/my_location:",
            ),
        ],
        "Game Dynamics": [
            st.Page(
                "app_pages/game_trends.py",
                title="Game Trends",
                icon=":material/trending_up:",
            ),
            st.Page(
                "app_pages/quarter_analysis.py",
                title="Quarter Analysis",
                icon=":material/timer:",
            ),
        ],
    },
    position="sidebar",
)

nav.run()