import microcat1
import urequests
import ujson
import utime

APN = "soracom.io"
USER = "sora"
PASSWORD = "sora"
URL = "http://harvest.soracom.io"

LOAD_OHM = 30            # 3V3(OUT)-GND間の負荷抵抗
TEST_SEC = 60            # 疎通確認の時間
POST_INTERVAL_MS = 5000  # POST間隔
MODEM_WARMUP_SEC = 20    # m.active(True) 後の待機時間
IP_WAIT_SEC = 60         # IP取得の待ち時間

LOG_FILE = "result.log"


def has_ip(m):
    try:
        ip = m.ifconfig()[0]
        return ip not in (None, "", "0.0.0.0")
    except Exception:
        return False


load_ma = 3.3 / LOAD_OHM * 1000
ok = 0
ng = 0
error = None
m = None

try:
    # モデム起動
    print("Modem activating...")
    m = microcat1.modem(debug=False)
    m.active(True)
    print("Modem active, warm-up {} sec".format(MODEM_WARMUP_SEC))
    utime.sleep(MODEM_WARMUP_SEC)

    # PPP接続
    print("PPP connecting...")
    m.connect(apn=APN, user=USER, key=PASSWORD, pdp="IP")
    for _ in range(IP_WAIT_SEC):
        if has_ip(m):
            break
        utime.sleep(1)
    else:
        raise RuntimeError("no IP address")

    # 疎通確認(約1分間HTTP POST)
    print("PPP connected, HTTP POST test {} sec".format(TEST_SEC))
    start = utime.ticks_ms()
    seq = 0
    while utime.ticks_diff(utime.ticks_ms(), start) < TEST_SEC * 1000:
        seq += 1
        data = ujson.dumps({"load_ohm": LOAD_OHM, "seq": seq})
        try:
            r = urequests.post(URL, data=data,
                               headers={"Content-Type": "application/json"})
            if r.status_code == 201:
                ok += 1
            else:
                ng += 1
            r.close()
        except Exception as e:
            error = e
            break
        utime.sleep_ms(POST_INTERVAL_MS)

except Exception as e:
    error = e

finally:
    if m is not None:
        try:
            m.disconnect()
        except Exception:
            pass
        try:
            m.active(False)
        except Exception:
            pass


if error is None and ng == 0 and ok > 0:
    judge = "PASS"
else:
    judge = "NETWORK FAIL"

print("=== RESULT ===")
print("load resistor : {} ohm ({:.1f} mA est.)".format(LOAD_OHM, load_ma))
print("HTTP success  : {}/{}".format(ok, ok + ng))
print("error         : {}".format(error))
print("TEST RESULT   : {}".format(judge))