aquifer/main.py

import json
import time

from machine import I2C
from net import AdafruitIO
from net import logging
from net import ntp
from net import Server
from net import templates
from net import util
from sensors import MCP9808
from sensors import WaterSensor


class SensorServer(Server):

    def __init__(self):
        super().__init__()
        self.waterSensor = WaterSensor(0)
        self.mcp = MCP9808(I2C(0))
        self.aio = AdafruitIO()
        self.ntp_interval_in_seconds = 60 * 60
        self.aio_interval_in_seconds = 60 * 5
        self.ntp_ticks = time.ticks_ms()
        self.aio_ticks = time.ticks_ms()

        ntp.sync()

    def work(self):
        super().work()
        ticks = time.ticks_ms()

        if util.secondsElapsed(ticks, self.ntp_ticks) > self.ntp_interval_in_seconds:
            self.ntp_ticks = ticks
            ntp.sync()

        if util.secondsElapsed(ticks, self.aio_ticks) > self.aio_interval_in_seconds:
            self.aio_ticks = ticks
            self.aio.upload(self.getReading())

    def handlePath(self, path):
        if path == 'index.json':
            return self.getJsonData()

        return self.getPathData(path)

    def getJsonData(self):
        return json.dumps(self.getState())

    def getPathData(self, path):
        if path.endswith('.txt') or path.endswith('.ico'):
            with open(f'www/{path}', 'rb') as f:
                return f.read()

        return templates.render(
            f'www/{path or self.default_path}',
            datetime=util.datetime(),
            temperature=self.temperatureTextValue(),
            waterStatus=self.waterTextValue(),
            waterClass=self.waterCssClass()
        )

    def getReading(self):
        return {
            'timestamp': util.datetimeISO8601(),
            'readings': self.getState()
        }

    def getState(self):
        return {
            'is-water-present': self.waterSensor.isWaterPresent(),
            'temperature': self.mcp.get_temp()
        }

    def temperatureTextValue(self):
        return round(self.mcp.get_temp(), 2)

    def waterTextValue(self):
        return 'Present' if self.waterSensor.isWaterPresent() else 'Absent'

    def waterCssClass(self):
        return 'water-present' if self.waterSensor.isWaterPresent() else 'water-absent'


def main():
    logging.log_file = 'www/log.txt'
    SensorServer().run()


if __name__ == '__main__':
    main()