import json
from dataclasses import dataclass


@dataclass
class HFBandCondition:
    """Data class representing HF propagation conditions for certain bands and time of day."""

    # Band name, e.g. "80m-40m", "20m-17m", "10m-6m"
    band: str = None
    # Time of day: "day" or "night"
    time: str = None
    # Propagation condition: "Good", "Fair", or "Poor"
    condition: str = None


@dataclass
class VHFCondition:
    """Data class representing a VHF propagation condition."""

    # Phenomenon name, e.g. "E-Skip", "Sporadic E"
    phenomenon: str = None
    # Geographic location this applies to, e.g. "Europe", "N America"
    location: str = None
    # Condition description, e.g. "Band Closed", "Enhanced", "Good"
    condition: str = None


@dataclass
class SolarConditions:
    """Data class representing current solar and propagation conditions."""

    # Time the data was last updated at the source, UTC seconds since UNIX epoch
    updated: float = None
    # Solar Flux Index (SFI)
    sfi: int = None
    # A-index (daily geomagnetic activity)
    a_index: int = None
    # K-index (3-hour geomagnetic activity)
    k_index: int = None
    # X-ray flux class, e.g. "B2.3", "C1.0"
    x_ray: str = None
    # Proton flux
    proton_flux: int = None
    # Electron flux
    electron_flux: int = None
    # Aurora activity level
    aurora: int = None
    # Latitude in degrees of the aurora boundary
    aurora_latitude: float = None
    # Sunspot count
    sunspots: int = None
    # Solar wind speed in km/s
    solar_wind: float = None
    # Interplanetary magnetic field strength in nT
    magnetic_field: float = None
    # Geomagnetic field condition, e.g. "Quiet", "Unsettled", "Active", "Storm"
    geomag_field: str = None
    # Geomagnetic background noise level, e.g. "S0", "S1", "S2"
    geomag_noise: str = None
    # HF band propagation conditions
    hf_conditions: list = None  # list[HFBandCondition]
    # VHF propagation phenomena
    vhf_conditions: list = None  # list[VHFCondition]

    def to_json(self):
        """JSON serialise"""

        return json.dumps(self, default=lambda o: o.__dict__, sort_keys=True)