import logging
import requests

logger = logging.getLogger(__name__)

TIMEOUT = 5


def build_wled_url(hostname, r, g, b, segment=None, effect=""):
    """Build WLED HTTP API URL."""
    base = f"http://{hostname}/win&A=255&R={r}&G={g}&B={b}"
    if effect:
        base = f"http://{hostname}{effect}&R={r}&G={g}&B={b}"
    if segment is not None:
        base = f"{base}&SS={segment}"
    return base


def call_wled(url):
    """Send HTTP request to WLED device. Returns (success, status_text)."""
    try:
        r = requests.post(url, timeout=TIMEOUT)
        return True, f"{r.status_code} {r.reason}"
    except requests.exceptions.RequestException as e:
        logger.warning("WLED nicht erreichbar: %s - %s", url, e)
        return False, str(e)


def get_wled_info(hostname):
    """Query WLED JSON API for device info. Returns dict or None."""
    try:
        r = requests.get(f"http://{hostname}/json/info", timeout=TIMEOUT)
        if r.status_code == 200:
            data = r.json()
            return {
                "online": True,
                "name": data.get("name", ""),
                "version": data.get("ver", ""),
                "brand": data.get("brand", "WLED"),
                "mac": data.get("mac", ""),
                "ip": data.get("ip", ""),
                "leds": data.get("leds", {}).get("count", 0),
                "power_on": data.get("state", {}).get("on", False) if "state" not in data else None,
            }
        return {"online": False}
    except requests.exceptions.RequestException:
        return {"online": False}


def get_wled_config(hostname):
    """Download full WLED config as JSON."""
    try:
        r = requests.get(f"http://{hostname}/cfg.json", timeout=TIMEOUT)
        if r.status_code == 200:
            return r.json()
        return None
    except requests.exceptions.RequestException:
        return None


def restore_wled_config(hostname, config_json):
    """Push config JSON to WLED device."""
    try:
        r = requests.post(
            f"http://{hostname}/json/cfg",
            json=config_json,
            timeout=TIMEOUT,
        )
        return r.status_code == 200, f"{r.status_code} {r.reason}"
    except requests.exceptions.RequestException as e:
        return False, str(e)