package org.terst.nav

import java.util.Locale

data class BarometerReading(
    val pressureHpa: Float,
    val timestamp: Long = System.currentTimeMillis()
)

enum class PressureTrend {
    RISING_FAST,
    RISING,
    STEADY,
    FALLING,
    FALLING_FAST;

    override fun toString(): String {
        return when (this) {
            RISING_FAST -> "Rising Fast"
            RISING -> "Rising"
            STEADY -> "Steady"
            FALLING -> "Falling"
            FALLING_FAST -> "Falling Fast"
        }
    }
}

data class BarometerStatus(
    val currentPressureHpa: Float = 1013.25f,
    val trend: PressureTrend = PressureTrend.STEADY,
    val pressureChange3h: Float = 0f,
    val history: List<BarometerReading> = emptyList()
) {
    fun formatPressure(): String {
        return String.format(Locale.getDefault(), "%.1f hPa", currentPressureHpa)
    }

    fun formatTrend(): String {
        val sign = if (pressureChange3h >= 0) "+" else ""
        return String.format(Locale.getDefault(), "%s (%s%.1f hPa/3h)", trend.toString(), sign, pressureChange3h)
    }
}