import network
import time
import json


def load_config():
    try:
        with open('config.json') as f:
            return json.load(f)
    except OSError:
        print('[boot] config.json not found, using defaults')
        return {
            'ssid': 'MyWiFi', 'password': 'secret',
            'led_count': 300, 'strip_type': 'sk6812',
            'led_pin': 5, 'spi_id': 1, 'udp_port': 21324
        }


def connect_wifi(ssid, password, timeout=15):
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if wlan.isconnected():
        print('[boot] Already connected:', wlan.ifconfig()[0])
        return wlan
    print('[boot] Connecting to', ssid, '...')
    wlan.connect(ssid, password)
    start = time.time()
    while not wlan.isconnected():
        if time.time() - start > timeout:
            print('[boot] WiFi timeout after', timeout, 'seconds')
            return wlan
        time.sleep(0.5)
    print('[boot] Connected:', wlan.ifconfig()[0])
    return wlan


config = load_config()
wlan = connect_wifi(config['ssid'], config['password'])