tests/models.py

import json
from urllib.parse import quote

from dataclasses import dataclass
from typing import Collection, Any


type Numeric = int | float


@dataclass
class SensorData:
    mac: str
    value: Numeric
    # actually `time` is either decimal int,
    # hex int or <date>T<time>+/-<timezone>
    time: int | None = None
    name: str | None = None


@dataclass
class GeoPosition:
    lat: Numeric
    lon: Numeric
    alt: Numeric


@dataclass
class Device:
    mac: str
    name: str | None = None
    owner: str | None = None
    geopos: GeoPosition | None = None
    sensors: Collection[SensorData] = ()

    def nm_req_data(self) -> str:
        '''Generate a NarodMon format (#mac#value) request body'''

        res = '#' + self.mac
        if self.name is not None:
            res += '#' + self.name
        res += '\n'

        if self.owner is not None:
            res += '#OWNER#' + self.owner + '\n'

        for s in self.sensors:
            res += f'#{s.mac}#{s.value}'
            if s.time is not None:
                res += f'#{s.time}'
            if s.name is not None:
                res += '#' + s.name
            res += '\n'

        if self.geopos is not None:
            res += (
                f'#LAT#{self.geopos.lat}\n'
                f'#LON#{self.geopos.lon}\n'
                f'#ALT#{self.geopos.alt}\n'
            )

        res += '##'

        return res

    def http_req_data(self) -> str:
        '''Generate an x-www-form-urlencoded format request body'''

        res = 'ID=' + self.mac
        # TODO: i didn't get how to pass device name in an HTTP request
        # because narodmon docs are written incredibly well /sarcasm

        for s in self.sensors:
            res += f'&{s.mac}={s.value}'
            if s.time is not None:
                res += f'&time={s.time}'
            if s.name is not None:
                res += f'&name={quote(s.name)}'

        if self.owner is not None:
            res += '&owner=' + quote(self.owner)

        if self.geopos is not None:
            res += (
                f'&lat={self.geopos.lat}'
                f'&lon={self.geopos.lon}'
                f'&alt={self.geopos.alt}'
            )

        return res

    def json_req_data(self) -> str:
        '''Generate a JSON format request body'''

        obj = {
            'devices': [{
                'mac': self.mac,
                'sensors': [],
            }]
        }

        dev = obj['devices'][0]
        if self.name is not None:
            dev['name'] = self.name
        if self.owner is not None:
            dev['owner'] = self.owner
        if self.geopos is not None:
            dev['lat'] = self.geopos.lat
            dev['lon'] = self.geopos.lon
            dev['alt'] = self.geopos.alt

        sl: list[dict[str, Any]] = dev['sensors']
        for s in self.sensors:
            sobj = {
                'id': s.mac,
                'value': s.value,
            }
            if s.time is not None:
                sobj['time'] = s.time
            if s.name is not None:
                sobj['name'] = s.name
            sl.append(sobj)

        return json.dumps(obj)