from influxdb import InfluxDBClient
import serial
import uuid
import random
import time
import datetime
import s2cell

dbframe = 0

cosmicdict = {
        "DeviceID": 0,
        "UTCUnixTime": 0,
        "SubSeconds": 0.0,
        "TemperatureC": 0.0,
        "Humidity": 0.0,
        "AccelX": 0.0,
        "AccelY": 0.0,
        "AccelZ": 0.0,
        "MagX": 0.0,
        "MagY": 0.0,
        "MagZ": 0.0,
        "Pressure": 0.0,
        "Altitude": 0.0,
        "Longitude": 0.0,
        "Latitude": 0.0
        }
        
nstimestamp = 0

s2celllocation = 0

print("starting")
ser = serial.Serial(port='/dev/serial0', baudrate=115200, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, bytesize=serial.EIGHTBITS, timeout=1)
print("connected to: " + ser.portstr)
print ("The device ID using uuid1() is : ",end="")
print (uuid.uuid1().int)
cosmicdict['DeviceID']=uuid.uuid1().int

print("DB connection")
client = InfluxDBClient(host='localhost', port=8086)
client.create_database('cosmicpilocal')
data=[]

#ser.write("help\n");
while True:
    line = ser.readline();
    if line:
        #print(line.decode('utf-8'))
        line_str = str(line.decode('utf-8'))
        data_type = line_str.split(':')[0]
        gps_type = line_str.split(',')[0]
        #print(data_type)
        #print(gps_type)
        if data_type in cosmicdict.keys():
            data = line_str.split(':')[1].split(';')[0]
            cosmicdict[data_type] = float(data)
        if data_type == "PPS":
            gps_lock_sting = line_str.split(':')[2]
            gps_lock_sting = gps_lock_sting.split(';')[0]
            if (len(gps_lock_sting) == 1):
                cosmicdict[UTCUnixTim] += 1
        gps_type = line_str.split(',')[0]
        if gps_type == "$GPZDA" or gps_type == "$GNZDA":
            if (line_str.count(',') == 6):
                g_time_string = line_str.split(',')[1].split('.')[0]  # has format hhmmss
                hour = int(g_time_string[0:2])
                minute = int(g_time_string[2:4])
                second = int(g_time_string[4:6])
                day = int(line_str.split(',')[2])
                month = int(line_str.split(',')[3])
                year = int(line_str.split(',')[4])
                time_from_gps = datetime.datetime(year,month,day,hour,minute,second,tzinfo=None)
                cosmicdict['UTCUnixTime'] = (time_from_gps - datetime.datetime(1970, 1, 1)).total_seconds()
        if gps_type == "$GPGGA":
                # sanity check
                if (line_str.count(',') == 14):
                # use this as documentation for the string: http://aprs.gids.nl/nmea/#gga
                    lat = line_str.split(',')[2]
                    lat = float(lat[0:2])
                    minutes = line_str.split(',')[2]
                    minutes = float(minutes[2:len(minutes)])
                    lat += minutes / 60.
                    if line_str.split(',')[3] == 'S':
                        lat = -lat
                    lon = line_str.split(',')[4]
                    lon = float(lon[0:3])
                    minutes = line_str.split(',')[4]
                    minutes = float(minutes[3:len(minutes)])
                    lon += minutes / 60.
                    if line_str.split(',')[5] == 'W':
                        lon = -lon

                cosmicdict['Latitude'] = lat
                cosmicdict['Longitude'] = lon
        if data_type == "Event":
            if ((line_str.count(':') == 3) and (line_str.count(';') == 1)):
                sub_sec_string = line_str.split(':')[2]
                sub_sec_string = sub_sec_string.split(';')[0]
                if sub_sec_string.count('/') == 1:
                    # this is the newer format and we need to divide the first number by the second one
                    divisors = sub_sec_string.split('/')
                    current_subSeconds = float(divisors[0]) / float(divisors[1])
                cosmicdict['SubSeconds'] = current_subSeconds
            print(cosmicdict)
            #conversion to ns for influx
            #add s and ns, then multiply by 1e9
            nstimestamp = cosmicdict['UTCUnixTime']+cosmicdict['SubSeconds']
            nstimestamp = nstimestamp*1e9
            nstimestamp = int(nstimestamp)
            s2celllocation = s2cell.lat_lon_to_cell_id(cosmicdict['Latitude'],cosmicdict['Longitude'])
            data = []
            data.append("{measurement},id={DeviceID} s2_cell_id={s2_cell_id},lat={latitude},lon={longitude},Temp={Temp},Hum={Hum},Accelx={Accelx},Accely={Accely},Accelz={Accelz},Magx={Magx},Magy={Magy},Magz={Magz},Press={Pressx},Alt={Altx} {timestamp}"
            .format(measurement='CosmicPiV1.8.1',
                    DeviceID=cosmicdict['DeviceID'],
                    s2_cell_id=s2celllocation,
                    latitude=cosmicdict['Longitude'],
                    longitude=cosmicdict['Latitude'],
                    Temp=cosmicdict['TemperatureC'],
                    Hum=cosmicdict['Humidity'],
                    Accelx=cosmicdict['AccelX'],
                    Accely=cosmicdict['AccelY'],
                    Accelz=cosmicdict['AccelZ'],
                    Magx=cosmicdict['MagX'],
                    Magy=cosmicdict['MagY'],
                    Magz=cosmicdict['MagZ'],
                    Pressx=cosmicdict['Pressure'],
                    Altx=cosmicdict['Altitude'],
                    timestamp=nstimestamp))
            print(data)
            client.write_points(data, database='cosmicpilocal', time_precision='n', batch_size=1, protocol='line')