"""Driver for connecting Pond Level to Meshify."""

import threading
from device_base import deviceBase
import calibration_db as db
import time
import random
import json

_ = None

pond_level = {
    'value': 15.0,
    'timestamp': 0
}
send_delta = 0.5
send_time = 300

temp_pl = pond_level['value']


class start(threading.Thread, deviceBase):
    """Start class required by Meshify."""

    def __init__(self, name=None, number=None, mac=None, Q=None, mcu=None, companyId=None, offset=None, mqtt=None, Nodes=None):
        """Initialize the driver."""
        threading.Thread.__init__(self)
        deviceBase.__init__(self, name=name, number=number, mac=mac, Q=Q, mcu=mcu, companyId=companyId, offset=offset, mqtt=mqtt, Nodes=Nodes)

        self.daemon = True
        self.version = "1"
        self.finished = threading.Event()
        self.forceSend = False
        threading.Thread.start(self)

    # this is a required function for all drivers, its goal is to upload some piece of data
    # about your device so it can be seen on the web
    def register(self):
        """Register the driver."""
        self.sendtodb("log", "BOOM! Booted.", 0)

    def run(self):
        """Actually run the driver."""
        global pond_level, temp_pl, send_delta, send_time

        wait_sec = 10
        for i in range(0, wait_sec):
            print("pondlevel driver will start in {} seconds".format(wait_sec - i))
            time.sleep(1)
        print("BOOM! Starting pondlevel driver...")
        send_loops = 0
        while True:
            send_now = False
            if self.forceSend:
                print "FORCE SEND: TRUE"
                send_now = True

            up_down = 1
            if bool(random.getrandbits(1)):
                up_down = -1

            temp_pl = pond_level['value'] + up_down * random.random()

            if abs(temp_pl - pond_level['value']) > send_delta:
                print("Sending {} due to value change".format(temp_pl))
                send_now = True
            elif (time.time() - pond_level['timestamp']) > send_time:
                print("Sending {} due to time limit".format(temp_pl))
                send_now = True

            if send_now:
                self.sendtodb('pond_level', temp_pl, 0)
                pond_level['value'] = temp_pl
                pond_level['timestamp'] = time.time()

            print("pondlevel driver still alive...")
            if self.forceSend:
                if send_loops > 2:
                    print("Turning off forceSend")
                    self.forceSend = False
                    send_loops = 0
                else:
                    send_loops += 1
            time.sleep(10)

    def send_calibration_points(self):
        """Send calibration data from database to Meshify."""
        cal_data = db.get_calibration_data()
        self.sendtodb('pondlevel', json.dumps(cal_data), 0)

    def pondlevel_sync(self, name, value):
        """Sync all data from the driver."""
        self.forceSend = True
        self.sendtodb("log", "synced", 0)
        return True

    def pondlevel_addcalibrationpoint(self, name, value):
        """Add a JSON calibration point to the database."""
        try:
            new_point = json.loads(value)
            db.insert_calibration_data(new_point['height'], new_point['volume'])
            self.send_calibration_points()
            return True
        except KeyError:
            return "Misformed JSON"