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//
// SignalCell.swift
// DSN
//
// Created by Andrew Finke on 8/5/17.
// Copyright © 2017 Andrew Finke. All rights reserved.
//
import UIKit
class SignalCell: UICollectionViewCell {
// MARK: - Properties
static let reuseIdentifier = "SignalCell"
private static let twoDigitFormatter: NumberFormatter = {
let formatter = NumberFormatter()
formatter.maximumFractionDigits = 2
formatter.minimumFractionDigits = 2
return formatter
}()
private static let byteFormatter: ByteCountFormatter = {
let formatter = ByteCountFormatter()
formatter.allowsNonnumericFormatting = false
return formatter
}()
private let sourceView = SquareView(title: "source")
private let typeView = SquareView(title: "type")
private let dataRateView = SquareView(title: "data rate")
private let frequencyView = SquareView(title: "frequency")
private let powerView = SquareView(title: "power")
var signal: Signal? {
didSet {
sourceView.detail = signal?.spacecraftName
typeView.detail = signal?.type.rawValue
frequencyView.detail = frequencyString(for: signal?.frequency)
powerView.detail = powerString(for: signal?.power)
guard let signal = signal else { return }
if signal.isUploading {
powerView.title = "POWER TRANSMITTED"
dataRateView.detail = nil
} else {
powerView.title = "POWER RECEIVED"
let byteCount = Int64(Double(signal.dataRate) ?? 0.0)
dataRateView.detail = SignalCell.byteFormatter.string(fromByteCount: byteCount).lowercased() + "/s"
}
layoutIfNeeded()
}
}
// MARK: - Initialization
override init(frame: CGRect) {
super.init(frame: frame)
for (index, view) in [sourceView, typeView, dataRateView, frequencyView, powerView].enumerated() {
addSubview(view)
addConstraints(to: view, toLeftAnchor: index % 2 == 0)
}
let firstMiddleLine = ThinLineView.add(to: self)
let secondMiddleLine = ThinLineView.add(to: self)
let bottomLine = ThinLineView.add(to: self, offset: 0)
let constraints = [
sourceView.topAnchor.constraint(equalTo: topAnchor),
typeView.topAnchor.constraint(equalTo: topAnchor),
dataRateView.topAnchor.constraint(equalTo: sourceView.bottomAnchor),
frequencyView.topAnchor.constraint(equalTo: sourceView.bottomAnchor),
powerView.topAnchor.constraint(equalTo: dataRateView.bottomAnchor),
firstMiddleLine.topAnchor.constraint(equalTo: sourceView.bottomAnchor),
secondMiddleLine.topAnchor.constraint(equalTo: dataRateView.bottomAnchor),
bottomLine.topAnchor.constraint(equalTo: powerView.bottomAnchor)
]
NSLayoutConstraint.activate(constraints)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
// MARK: - Formatters
private func frequencyString(for frequency: String?) -> String {
guard let frequency = frequency,
!frequency.characters.isEmpty,
let value = Double(frequency) else {
return "-"
}
if value < 1000 {
let number = NSNumber(value: value)
return SignalCell.twoDigitFormatter.string(from: number)! + " Hz"
} else if value < 1000000 {
let number = NSNumber(value: value / 1000)
return SignalCell.twoDigitFormatter.string(from: number)! + " kHz"
} else if value < 1000000000 {
let number = NSNumber(value: value / 1000000)
return SignalCell.twoDigitFormatter.string(from: number)! + " MHz"
} else if value < 1000000000000 {
let number = NSNumber(value: value / 1000000000)
return SignalCell.twoDigitFormatter.string(from: number)! + " GHz"
} else {
return ">= 1 THz"
}
}
private func powerString(for power: String?) -> String {
guard let signal = signal,
let power = power,
!power.characters.isEmpty,
let value = Double(power) else {
return "-"
}
let unit: String
if signal.isUploading {
unit = " kW"
} else {
unit = " dBm"
}
let number = NSNumber(value: value)
return SignalCell.twoDigitFormatter.string(from: number)! + unit
}
// MARK: - Auto Layout
private func addConstraints(to view: UIView, toLeftAnchor isLeftSquare: Bool) {
view.translatesAutoresizingMaskIntoConstraints = false
var constraints = [
view.heightAnchor.constraint(equalToConstant: SquareView.height),
view.widthAnchor.constraint(equalTo: widthAnchor, multiplier: 0.5)
]
if isLeftSquare {
constraints.append(view.leftAnchor.constraint(equalTo: leftAnchor))
} else {
constraints.append(view.rightAnchor.constraint(equalTo: rightAnchor))
}
NSLayoutConstraint.activate(constraints)
}
}