//
//  LoRaSignalStrength.swift
//  Meshtastic
//
//  Created by Garth Vander Houwen on 5/15/23.
//
import Foundation
import SwiftUI

struct LoRaSignalStrengthMeter: View {
	var snr: Float
	var rssi: Int32
	var preset: ModemPresets
	var compact: Bool
	var body: some View {

		let signalStrength = getLoRaSignalStrength(snr: snr, rssi: rssi, preset: preset)
		let gradient = Gradient(colors: [.red, .orange, .yellow, .green])
		if !compact {
			VStack {
				LoRaSignalStrengthIndicator(signalStrength: signalStrength)
				Text("Signal \(signalStrength.description)").font(.footnote)
				Text("SNR \(String(format: "%.2f", snr))dB")
					.foregroundColor(getSnrColor(snr: snr, preset: ModemPresets.longFast))
					.font(.caption2)
				Text("RSSI \(rssi)dB")
					.foregroundColor(getRssiColor(rssi: rssi))
					.font(.caption2)
			}
		} else {
			VStack {
				Gauge(value: Double(signalStrength.rawValue), in: 0...3) {
				} currentValueLabel: {
					Image(systemName: "dot.radiowaves.left.and.right")
						.font(.callout)
						.frame(width: 30)
					Text("Signal \(signalStrength.description)")
						.font(UIDevice.current.userInterfaceIdiom == .phone ? .callout : .caption)
						.foregroundColor(.gray)
						.fixedSize()
				}
				.gaugeStyle(.accessoryLinear)
				.tint(gradient)
				.font(.caption)
			}
		}
	}
}

struct LoRaSignalStrengthMeter_Previews: PreviewProvider {
	static var previews: some View {
		ScrollView {
			VStack {
				VStack {
					// Good
					LoRaSignalStrengthMeter(snr: -10, rssi: -100, preset: ModemPresets.longFast, compact: true)
						.padding(.bottom)
					// Fair
					LoRaSignalStrengthMeter(snr: -9.5, rssi: -119, preset: ModemPresets.longFast, compact: true)
						.padding(.bottom)
					// Bad
					LoRaSignalStrengthMeter(snr: -12.75, rssi: -139, preset: ModemPresets.longFast, compact: true)
						.padding(.bottom)
					// None
					LoRaSignalStrengthMeter(snr: -26.0, rssi: -128, preset: ModemPresets.longFast, compact: true)
						.padding(.bottom)
				}.padding()
				HStack {
					// Good
					LoRaSignalStrengthMeter(snr: -1, rssi: -114, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -5, rssi: -100, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -10, rssi: -100, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -17, rssi: -114, preset: ModemPresets.longFast, compact: false)
				}
				HStack {
					// Fair
					LoRaSignalStrengthMeter(snr: -9.5, rssi: -119, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -15.0, rssi: -115, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -17.5, rssi: -100, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -22.5, rssi: -100, preset: ModemPresets.longFast, compact: false)
				}
				HStack {
					// Bad
					LoRaSignalStrengthMeter(snr: -11.25, rssi: -120, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -12.75, rssi: -139, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -20.25, rssi: -128, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -30, rssi: -120, preset: ModemPresets.longFast, compact: false)
				}
				HStack {
					LoRaSignalStrengthMeter(snr: -15, rssi: -124, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -17.25, rssi: -126, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -19.5, rssi: -128, preset: ModemPresets.longFast, compact: false)
					LoRaSignalStrengthMeter(snr: -20, rssi: -150, preset: ModemPresets.longFast, compact: false)
				}
				HStack {
					// None
					LoRaSignalStrengthMeter(snr: -26.0, rssi: -129, preset: ModemPresets.longFast, compact: false)
				}
			}
			.padding(.top)
		}
	}
}