"""
modules/context_display.py — FRIDAY Contextual Display
Asks what's around and shows info in AR or normal mode.
"""

import os
import json
import time
from typing import Optional

from config import DATA_DIR

CONTEXT_FILE = os.path.join(DATA_DIR, "context_display.json")


def _load() -> dict:
    """Load context data."""
    if not os.path.exists(CONTEXT_FILE):
        return {"presets": {}, "current_view": "normal", "ar_enabled": False}
    try:
        with open(CONTEXT_FILE, "r", encoding="utf-8") as f:
            return json.load(f)
    except Exception:
        return {"presets": {}, "current_view": "normal", "ar_enabled": False}


def _save(data: dict) -> None:
    """Save context data."""
    try:
        os.makedirs(DATA_DIR, exist_ok=True)
        with open(CONTEXT_FILE, "w", encoding="utf-8") as f:
            json.dump(data, f)
    except Exception:
        pass


# === View Presets ===

PRESETS = {
    "system": ["CPU", "RAM", "GPU", "Temps", "Battery"],
    "network": ["WiFi", "LAN", "VPN", "Ping"],
    "health": ["Focus", "Breaks", "Eye strain", "Posture"],
    "weather": ["Temperature", "Humidity", "Forecast"],
    "calendar": ["Next meeting", "Events", "Free time"],
    "news": ["Headlines", "Tech news", "Weather alert"],
    "stocks": ["Portfolio", "Market", "Alerts"],
    "security": ["Firewall", "Network", "Logins"],
}


def set_view(view: str, mode: str = "normal") -> str:
    """
    Set what to display.

    Args:
        view: View name (system, network, health, etc)
        mode: Display mode (ar or normal)

    Returns:
        Confirmation
    """
    data = _load()
    data["current_view"] = view
    data["display_mode"] = mode
    data["ar_enabled"] = mode == "ar"
    _save(data)

    mode_text = "AR" if mode == "ar" else "normal"
    return f"Showing {view} in {mode_text} mode."


def get_view() -> dict:
    """Get current view settings."""
    return _load()


def enable_ar() -> str:
    """Enable AR display mode."""
    return set_view("system", "ar")


def disable_ar() -> str:
    """Disable AR display mode."""
    data = _load()
    data["ar_enabled"] = False
    data["display_mode"] = "normal"
    _save(data)
    return "AR disabled. Back to normal display."


def ask_what_to_show() -> str:
    """FRIDAY asks what user wants to see."""
    import random

    questions = [
        "What would you like to see, boss?",
        "What info do you need?",
        "Show you the system stats?",
        "Want to see network status?",
        "Check your health metrics?",
        "See weather?",
        "Display anything specific?",
    ]
    return random.choice(questions)


def suggest_views() -> list[str]:
    """Suggest available views."""
    return list(PRESETS.keys())


# === Build Display Content ===

def get_system_display() -> str:
    """Get system info for display."""
    import psutil
    import platform

    cpu = psutil.cpu_percent()
    ram = psutil.virtual_memory()
    battery = ""
    try:
        b = psutil.sensors_battery()
        if b:
            battery = f"{b.percent}%"
    except Exception:
        pass

    return f"CPU: {cpu}% | RAM: {ram.percent}% | {battery}"


def get_network_display() -> str:
    """Get network info for display."""
    import psutil

    net = psutil.net_io_counters()
    return f"Download: {net.bytes_recv/1024/1024:.1f}MB | Upload: {net.bytes_sent/1024/1024:.1f}MB"


def get_health_display() -> str:
    """Get health info for display."""
    try:
        from modules.health_monitor import get_health_summary

        summary = get_health_summary()
        focus = summary.get("total_focus_hours", 0)
        breaks = summary.get("breaks_taken", 0)
        return f"Focus: {focus:.1f}h | Breaks: {breaks}"
    except Exception:
        return "No health data"


def get_weather_display() -> str:
    """Get weather info for display."""
    try:
        from modules.weather import get_weather

        w = get_weather()
        return w[:100] if w else "Weather unavailable"
    except Exception:
        return "Weather unavailable"


def build_display_content() -> str:
    """Build content based on current view."""
    data = _load()
    view = data.get("current_view", "system")

    if view == "system":
        return get_system_display()
    elif view == "network":
        return get_network_display()
    elif view == "health":
        return get_health_display()
    elif view == "weather":
        return get_weather_display()
    else:
        return f"View: {view}"


# === Voice Commands ===

def handle_command(command: str, speak) -> bool:
    """Handle context display commands."""
    c = command.lower()

    # Ask what to show
    if "what do you see" in c or "what's around" in c or "what's happening" in c:
        result = ask_what_to_show()
        speak(result)
        return True

    # Enable AR
    if _has(c, ["show in ar", "ar display", "enable ar view"]):
        try:
            enable_ar()
            speak("AR enabled. What do you want to see?")
        except Exception as e:
            speak(f"AR error: {e}")
        return True

    # Disable AR
    if "disable ar" in c or "normal mode" in c:
        result = disable_ar()
        speak(result)
        return True

    # Show specific view
    for view in PRESETS.keys():
        if f"show {view}" in c or f"display {view}" in c:
            mode = "ar" if "ar" in c else "normal"
            result = set_view(view, mode)
            speak(result)
            return True

    return False


def _has(text: str, words: list) -> bool:
    """Check if any word in text."""
    return any(w in text for w in words)