//
//  WeatherCardView.swift
//  Reflect
//
//  Visual weather card shown in EntryDetailView.
//

import SwiftUI

struct WeatherCardView: View {
    let weatherData: WeatherData

    private var highTemp: String {
        formatTemperature(weatherData.highTemperature)
    }

    private var lowTemp: String {
        formatTemperature(weatherData.lowTemperature)
    }

    private var humidityPercent: String {
        "\(Int(weatherData.humidity * 100))%"
    }

    var body: some View {
        HStack(spacing: 14) {
            Image(systemName: weatherData.conditionSymbol)
                .font(.system(size: 36))
                .symbolRenderingMode(.multicolor)
                .frame(width: 44)

            VStack(alignment: .leading, spacing: 4) {
                Text(weatherData.condition)
                    .font(.subheadline)
                    .fontWeight(.medium)

                HStack(spacing: 8) {
                    Label(String(localized: "H: \(highTemp)"), systemImage: "thermometer.high")
                    Label(String(localized: "L: \(lowTemp)"), systemImage: "thermometer.low")
                    Label(humidityPercent, systemImage: "humidity")
                }
                .font(.caption)
                .foregroundStyle(.secondary)
                .labelStyle(.titleOnly)
            }

            Spacer()
        }
        .padding()
        .background(
            RoundedRectangle(cornerRadius: 16)
                .fill(Color(.secondarySystemBackground))
        )
    }

    private func formatTemperature(_ celsius: Double) -> String {
        let measurement = Measurement(value: celsius, unit: UnitTemperature.celsius)
        let formatter = MeasurementFormatter()
        formatter.unitOptions = .providedUnit
        formatter.numberFormatter.maximumFractionDigits = 0
        formatter.unitStyle = .short
        // Use locale-aware conversion
        let locale = Locale.current
        if locale.measurementSystem == .us {
            let fahrenheit = measurement.converted(to: .fahrenheit)
            return formatter.string(from: fahrenheit)
        }
        return formatter.string(from: measurement)
    }
}