import streamlit as st
import yaml
import subprocess
import os
import web_status  # Nuovo modulo

# --- COSTANTI E UTILS (Invariati) ---
CONFIG_PATH = os.environ.get("CONFIG") or os.environ.get("CONFIG_FILE") or "/config/config.yaml"
SECRETS_PATH = os.environ.get("SECRETS_FILE") or "/config/secrets.yaml"
LOG_FILE = "/tmp/main_process.log"
STATE_FILE = "/data/.web_state"

def load_yaml(path):
    if not os.path.exists(path): return {}
    with open(path, 'r') as f: return yaml.safe_load(f) or {}

def save_yaml(path, data):
    with open(path, 'w') as f: yaml.dump(data, f, default_flow_style=False)

cfg = load_yaml(CONFIG_PATH)

# --- CONFIGURAZIONE PAGINA E MENU ABOUT ---
st.set_page_config(
    page_title="BLE Localizer Manager",
    layout="wide",
    initial_sidebar_state="auto",
    menu_items={
        'Get Help': None,
        'Report a bug': None,
        'About': "🛰️BLE AI Localizer - Suite\nSistema professionale di posizionamento BLE."
    }
)

st.title("🛰️ BLE AI Localizer - Suite") # Forza il titolo qui

# --- CSS OTTIMIZZATO (Sidebar Fina + Mobile) ---
st.markdown("""
    <style>
    [data-testid="stSidebar"] { min-width: 200px !important; max-width: 230px !important; }
    [data-testid="stSidebar"] .stButton > button { width: 100%; height: 2.5rem; border-radius: 8px; font-size: 0.9rem !important; }
    .stTextInput input, .stSelectbox div, .stNumberInput input { height: 3rem !important; }
    button[data-baseweb="tab"] { height: 3.5rem !important; }
    .stButton > button { border-radius: 10px; font-weight: bold; }
    </style>
    """, unsafe_allow_html=True)

if "main_login_user" not in st.session_state:
    st.session_state["main_login_user"] = ""

# --- LOGIN (Tua versione originale) ---
if "password_correct" not in st.session_state:
    st.session_state["password_correct"] = False

if not st.session_state["password_correct"]:
    user = st.text_input("Username", key="main_login_user")
    pw = st.text_input("Password", type="password", key="main_login_pw")
    if st.button("ACCEDI"):
        if user == os.environ.get("UI_USER", "admin") and pw == os.environ.get("UI_PASSWORD", "password"):
            st.session_state["password_correct"] = True
            st.rerun()
        else: st.error("Credenziali errate")
    st.stop()

# Import moduli dopo login
from map_manager import show_mapper
from web_gateway import show_gateway_manager
from web_beacon import show_beacon_manager
import web_training_data
import web_inference

def is_proc_alive():
    return st.session_state.get('proc') is not None and st.session_state.proc.poll() is None

# Auto-riavvio (Tua logica)
if os.path.exists(STATE_FILE):
    with open(STATE_FILE, "r") as f:
        if f.read().strip() == "running" and not is_proc_alive():
            log_out = open(LOG_FILE, "a")
            st.session_state.proc = subprocess.Popen(
                ["python", "-u", "-m", "app.main"],
                env={**os.environ, "PYTHONUNBUFFERED": "1", "CONFIG": CONFIG_PATH},
                stdout=log_out, stderr=subprocess.STDOUT, text=True
            )

# --- SIDEBAR ---
with st.sidebar:
    st.header("Stato Sistema")
    alive = is_proc_alive()
    if not alive:
        if st.button("▶️ AVVIA MAIN"):
            if os.path.exists(LOG_FILE): os.remove(LOG_FILE)
            st.session_state.proc = subprocess.Popen(
                ["python", "-u", "-m", "app.main"],
                env={**os.environ, "PYTHONUNBUFFERED": "1", "CONFIG": CONFIG_PATH},
                stdout=open(LOG_FILE, "w"), stderr=subprocess.STDOUT, text=True
            )
            with open(STATE_FILE, "w") as f: f.write("running")
            st.rerun()
    else:
        if st.button("⏹️ FERMA MAIN"):
            st.session_state.proc.terminate()
            st.session_state.proc = None
            with open(STATE_FILE, "w") as f: f.write("stopped")
            st.rerun()
    
    st.write(f"Stato: {':green[Running]' if alive else ':red[Stopped]'}")
    st.write(f"Modo: **{cfg.get('mode', 'N/D').upper()}**")
    if st.button("LOGOUT"):
        st.session_state["password_correct"] = False
        st.rerun()
    
    st.divider()
    st.caption("🚦 LIVE STATUS")
    c1, c2, c3 = st.columns(3)
    c1.markdown("`MQTT` 🟢")
    c2.markdown("`GWs` 🟢")
    c3.markdown("`API` 🟢")

# --- TABS (Incluso il nuovo tab Stato) ---
tab_log, tab_cfg, tab_sec, tab_gw, tab_beac, tab_map, tab_data, tab_infer, tab_status = st.tabs([
    "📜 Log", "⚙️ Config", "🔑 Secrets", "🌐 Gateway", "🏷️ Beacon", "🗺️ Mappa", "📂 Dati", "🤖 Inferenza", "🖥️ Stato"
])

with tab_status:
    import web_status
    # Carica i segreti e passali alla funzione
    sec_data = load_yaml(SECRETS_PATH)
    web_status.show_system_status(cfg, sec_data)

with tab_cfg:
    # RIPRISTINATA TUTTA LA TUA LOGICA ORIGINALE
    c_cfg = load_yaml(CONFIG_PATH)
    st.subheader("🚀 Stato Operativo")
    mode_options = ["infer", "train", "collect_train"]
    new_mode = st.selectbox("Modalità:", mode_options, index=mode_options.index(c_cfg.get('mode', 'infer')))

    with st.expander("📊 Parametri Raccolta Dati", expanded=True):
        p_cfg = c_cfg.get('collect_train', {})
        col_a, col_b = st.columns(2)
        win_sec = col_a.number_input("Finestra (sec)", value=int(p_cfg.get('window_seconds', 30)))
        min_gw = col_a.number_input("Min. Gateway", value=int(p_cfg.get('min_non_nan', 3)))
        rssi_min = col_b.slider("RSSI Min", -120, -50, int(p_cfg.get('rssi_min', -110)))
        rssi_max = col_b.slider("RSSI Max", -40, 0, int(p_cfg.get('rssi_max', -25)))
        outlier = col_b.selectbox("Outlier", ["mad", "iqr", "none"], index=0)

    with st.expander("📡 MQTT & 🌐 API", expanded=False):
        m_cfg = c_cfg.get('mqtt', {})
        mq_host = st.text_input("Broker", value=m_cfg.get('host', '127.0.0.1'))
        mq_port = st.number_input("Porta", value=int(m_cfg.get('port', 1883)))
        a_cfg = c_cfg.get('api', {})
        t_url = st.text_input("Token URL", value=a_cfg.get('token_url', ''))
        v_tls = st.checkbox("Verify TLS", value=a_cfg.get('verify_tls', False))

    with st.expander("🛠️ Expert Mode (YAML)", expanded=False):
        cfg_text = st.text_area("Edit manuale", yaml.dump(c_cfg), height=300)

    if st.button("💾 SALVA TUTTO"):
        try:
            final_cfg = yaml.safe_load(cfg_text)
            final_cfg['mode'] = new_mode
            # Aggiorna con i valori dei widget per sicurezza
            if 'collect_train' not in final_cfg: final_cfg['collect_train'] = {}
            final_cfg['collect_train'].update({'window_seconds': win_sec, 'rssi_min': rssi_min})
            save_yaml(CONFIG_PATH, final_cfg)
            st.success("Salvato!")
        except Exception as e: st.error(e)

with tab_sec:
    sec = load_yaml(SECRETS_PATH)
    sec_edit = st.text_area("Secrets YAML", yaml.dump(sec), height=200)
    if st.button("SALVA SECRETS"):
        save_yaml(SECRETS_PATH, yaml.safe_load(sec_edit))
        st.success("ApiToken salvati!")

with tab_log:
    if os.path.exists(LOG_FILE):
        with open(LOG_FILE, "r") as f: st.code("".join(f.readlines()[-50:]))
    if st.button("🔄 AGGIORNA LOG"): st.rerun()

with tab_map: show_mapper(cfg)
with tab_gw: show_gateway_manager(load_yaml(CONFIG_PATH))
with tab_beac: show_beacon_manager(load_yaml(CONFIG_PATH))
with tab_data: web_training_data.show_training_data_manager(cfg)
with tab_infer: web_inference.show_inference_page(cfg)