// FILE: internal/model/observation.go
package model

import "time"

type WeatherObservation struct {
	// Identity / metadata
	StationID   string    `json:"stationId,omitempty"`
	StationName string    `json:"stationName,omitempty"`
	Timestamp   time.Time `json:"timestamp"`

	// Canonical internal representation (provider-independent).
	ConditionCode WMOCode `json:"conditionCode"`
	ConditionText string  `json:"conditionText,omitempty"`
	IsDay         *bool   `json:"isDay,omitempty"`

	// Provider-specific “evidence” for troubleshooting mapping and drift.
	ProviderRawDescription string `json:"providerRawDescription,omitempty"`

	// Human-facing (legacy / transitional)
	TextDescription string `json:"textDescription,omitempty"`

	// Provider-specific (legacy / transitional)
	IconURL string `json:"iconUrl,omitempty"`

	// Core measurements (nullable)
	TemperatureC *float64 `json:"temperatureC,omitempty"`
	DewpointC    *float64 `json:"dewpointC,omitempty"`

	WindDirectionDegrees *float64 `json:"windDirectionDegrees,omitempty"`
	WindSpeedKmh         *float64 `json:"windSpeedKmh,omitempty"`
	WindGustKmh          *float64 `json:"windGustKmh,omitempty"`

	BarometricPressurePa *float64 `json:"barometricPressurePa,omitempty"`
	SeaLevelPressurePa   *float64 `json:"seaLevelPressurePa,omitempty"`
	VisibilityMeters     *float64 `json:"visibilityMeters,omitempty"`

	RelativeHumidityPercent *float64 `json:"relativeHumidityPercent,omitempty"`
	WindChillC              *float64 `json:"windChillC,omitempty"`
	HeatIndexC              *float64 `json:"heatIndexC,omitempty"`

	ElevationMeters *float64 `json:"elevationMeters,omitempty"`
	RawMessage      string   `json:"rawMessage,omitempty"`

	PresentWeather []PresentWeather `json:"presentWeather,omitempty"`
	CloudLayers    []CloudLayer     `json:"cloudLayers,omitempty"`
}

type CloudLayer struct {
	BaseMeters *float64 `json:"baseMeters,omitempty"`
	Amount     string   `json:"amount,omitempty"`
}

type PresentWeather struct {
	Raw map[string]any `json:"raw,omitempty"`
}