Andrea Busi
251 lines
11 KiB
Swift
251 lines
11 KiB
Swift
//
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// SeismicNetworksIntensityMapViewController.swift
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// Earthquake Network
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//
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// Created by Andrea Busi on 27/02/25.
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// Copyright © 2025 Earthquake Network. All rights reserved.
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//
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import UIKit
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import MapKit
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class SeismicNetworksIntensityMapViewController: EQNBaseMapViewController {
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private let seismic: EQNSisma
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private var shakemaps: [EQNShakemap] = []
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private var pinStyle: MapPinStyle {
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get { AppPreferences.shared.mapPinStyle }
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set { AppPreferences.shared.mapPinStyle = newValue }
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}
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override var isFilterViewVisible: Bool { false }
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override var isCloseButtonVisible: Bool { false }
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// MARK: - UI
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lazy var descriptionView: UIView = {
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let view = UIView()
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view.translatesAutoresizingMaskIntoConstraints = false
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view.backgroundColor = AppTheme.Colors.pureBlue
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let descriptionLabel = UILabel()
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descriptionLabel.translatesAutoresizingMaskIntoConstraints = false
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descriptionLabel.numberOfLines = 0
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descriptionLabel.textColor = .white
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descriptionLabel.font = .preferredFont(forTextStyle: .subheadline)
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descriptionLabel.textAlignment = .center
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descriptionLabel.text = NSLocalizedString("shakemap_description", comment: "")
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view.addSubview(descriptionLabel)
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descriptionLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 2.0).isActive = true
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descriptionLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -2.0).isActive = true
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descriptionLabel.topAnchor.constraint(equalTo: view.topAnchor, constant: 2.0).isActive = true
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descriptionLabel.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: -2.0).isActive = true
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return view
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}()
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// MARK: - Init
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init(
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seismic: EQNSisma
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) {
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self.seismic = seismic
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super.init()
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}
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@MainActor required init?(coder: NSCoder) {
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fatalError("Plase use init(seismic:) instead")
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}
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// MARK: - View Lifecycle
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override func extraUI() {
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super.extraUI()
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view.addSubview(descriptionView)
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descriptionView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
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descriptionView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
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descriptionView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
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}
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override func configureUI() {
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super.configureUI()
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navigationItem.leftBarButtonItem = UIBarButtonItem(systemItem: .done, primaryAction: .init(handler: { [weak self] _ in
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self?.dismiss(animated: true)
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}))
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navigationItem.rightBarButtonItems = [
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UIBarButtonItem(image: UIImage(named: "navbar-icon-screenshot"), primaryAction: .init(handler: { [weak self] _ in
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self?.shareScreenshot()
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})),
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UIBarButtonItem(image: UIImage(named: "navbar-icon-pin-arrow"), primaryAction: .init(handler: { [weak self] _ in
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self?.nextPinStyle()
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})),
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]
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}
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override func registerMapAnnotationViews() {
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mapView.register(EQNSeismicAnnotationView.self, forAnnotationViewWithReuseIdentifier: EQNSeismicAnnotationView.identifier(for: .full))
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mapView.register(EQNSeismicAnnotationView.self, forAnnotationViewWithReuseIdentifier: EQNSeismicAnnotationView.identifier(for: .light))
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mapView.register(EQNSeismicAnnotationView.self, forAnnotationViewWithReuseIdentifier: EQNSeismicAnnotationView.identifier(for: .circle))
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}
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override func loadDataSource() {
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Task {
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let result = try await APIService.shared.fetchShakemap(isoCode: seismic.isoCode)
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elaborateShakemaps(result)
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}
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}
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override func elaborateMapCenter() {
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setMapCenter(for: seismic.coordinate, span: MKCoordinateSpan(latitudeDelta: 2, longitudeDelta: 2))
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}
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// MARK: - Private
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private func elaborateShakemaps(_ shakemaps: [EQNShakemap]) {
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self.shakemaps = shakemaps
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var shakemapPolyline = [MKPolyline]()
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var shakemapAnnotations: [MKAnnotation] = []
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for shakemap in shakemaps {
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// create coordinates for current shakemap
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let coordinates = zip(shakemap.lat, shakemap.lon).map { lat, lon in
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CLLocationCoordinate2D(latitude: Double(lat) / 10_000.0, longitude: Double(lon) / 10_000.0)
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}
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let intensityColors = getColors(for: shakemap.intensity)
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// create line to show on map
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let polyline = ShakemapPolyline(coordinates: coordinates, count: coordinates.count)
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polyline.intensity = shakemap.intensity
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polyline.intensityColor = intensityColors.lineColor
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shakemapPolyline.append(polyline)
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// create annotation to show on top of the line
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let middlePoint = coordinates[coordinates.count / 2]
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let annotation = EQNMapAnnotationShakemap(coordinate: middlePoint, shakemap: shakemap)
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annotation.intensityColor = intensityColors.lineColor
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annotation.intensityTextColor = intensityColors.textColor
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shakemapAnnotations.append(annotation)
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}
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let seismicAnnotation = EQNMapAnnotationSeismic(seismic: seismic)
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shakemapAnnotations.append(seismicAnnotation)
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// draw lines
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mapView.addOverlays(shakemapPolyline)
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updateMap(with: shakemapAnnotations)
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}
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private func nextPinStyle() {
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pinStyle.next()
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reloadMap()
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}
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private func shareScreenshot() {
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let screenshot = createSnapshot(prepare: {
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descriptionView.isHidden = true
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}, restore: {
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descriptionView.isHidden = false
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})
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let controller = UIActivityViewController(activityItems: [screenshot], applicationActivities: [])
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present(controller, animated: true)
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}
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// MARK: - MKMapViewDelegate
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override func setupAnnotationView(for annotation: MKAnnotation, on mapView: MKMapView) -> MKAnnotationView? {
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switch annotation {
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case let shakemapAnnotation as EQNMapAnnotationShakemap:
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return shakemapAnnotation.toAnnotationView(mapView: mapView, style: .light)
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case let seismicAnnotation as EQNMapAnnotationSeismic:
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return seismicAnnotation.toAnnotationView(mapView: mapView, style: pinStyle)
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default:
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return nil
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}
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}
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func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {
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if let polyline = overlay as? ShakemapPolyline {
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let renderer = MKPolylineRenderer(polyline: polyline)
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renderer.strokeColor = polyline.intensityColor
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renderer.lineWidth = 6.0
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return renderer
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}
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return MKOverlayRenderer()
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}
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private func getColors(for intensity: Float) -> (textColor: UIColor, lineColor: UIColor) {
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let shakemapColors: [String] = [
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"#3E26A8","#3E27AC","#3F28AF","#3F29B2","#402AB4","#402BB7","#412CBA","#412DBD","#422EBF","#422FC2",
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"#4330C5","#4331C8","#4332CA","#4433CD","#4434D0","#4535D2","#4537D5","#4538D7","#4639D9","#463ADC",
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"#463BDE","#463DE0","#473EE1","#473FE3","#4741E5","#4742E6","#4744E8","#4745E9","#4746EB","#4848EC",
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"#4849ED","#484BEE","#484CF0","#484EF1","#484FF2","#4850F3","#4852F4","#4853F5","#4854F6","#4756F7",
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"#4757F7","#4759F8","#475AF9","#475BFA","#475DFA","#465EFB","#4660FB","#4661FC","#4562FC","#4564FD",
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"#4465FD","#4367FD","#4368FE","#426AFE","#416BFE","#406DFE","#3F6EFF","#3E70FF","#3C71FF","#3B73FF",
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"#3974FF","#3876FE","#3677FE","#3579FD","#337AFD","#327CFC","#317DFC","#307FFB","#2F80FA","#2F82FA",
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"#2E83F9","#2E84F8","#2E86F8","#2E87F7","#2D88F6","#2D8AF5","#2D8BF4","#2D8CF3","#2D8EF2","#2C8FF1",
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"#2C90F0","#2B91EF","#2A93EE","#2994ED","#2895EC","#2797EB","#2798EA","#2699E9","#269AE8","#259BE8",
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"#259CE7","#249EE6","#249FE5","#23A0E5","#23A1E4","#22A2E4","#21A3E3","#20A5E3","#1FA6E2","#1EA7E1",
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"#1DA8E1","#1DA9E0","#1CAADF","#1BABDE","#1AACDD","#19ADDC","#17AEDA","#16AFD9","#14B0D8","#12B1D6",
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"#10B2D5","#0EB3D4","#0BB3D2","#08B4D1","#06B5CF","#04B6CE","#02B7CC","#01B7CA","#00B8C9","#00B9C7",
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"#00BAC6","#01BAC4","#02BBC2","#04BBC1","#06BCBF","#09BDBD","#0DBDBC","#10BEBA","#14BEB8","#17BFB6",
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"#1AC0B5","#1DC0B3","#20C1B1","#23C1AF","#25C2AE","#27C2AC","#29C3AA","#2BC3A8","#2CC4A6","#2EC4A5",
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"#2FC5A3","#31C5A1","#32C69F","#33C79D","#35C79B","#36C899","#38C896","#39C994","#3BC992","#3DCA90",
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"#40CA8D","#42CA8B","#45CB89","#48CB86","#4BCB84","#4ECC81","#51CC7F","#54CC7C","#57CC7A","#5ACC77",
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"#5ECD74","#61CD72","#64CD6F","#67CD6C","#6BCD69","#6ECD66","#72CD64","#76CC61","#79CC5E","#7DCC5B",
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"#81CC59","#84CC56","#88CB53","#8BCB51","#8FCB4E","#93CA4B","#96CA48","#9AC946","#9DC943","#A1C840",
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"#A4C83E","#A7C73B","#ABC739","#AEC637","#B2C635","#B5C533","#B8C431","#BBC42F","#BEC32D","#C2C32C",
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"#C5C22A","#C8C129","#CBC128","#CEC027","#D0BF27","#D3BF27","#D6BE27","#D9BE28","#DBBD28","#DEBC29",
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"#E1BC2A","#E3BC2B","#E6BB2D","#E8BB2E","#EABA30","#ECBA32","#EFBA35","#F1BA37","#F3BA39","#F5BA3B",
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"#F7BA3D","#F9BA3E","#FBBB3E","#FCBC3E","#FEBD3D","#FEBE3C","#FEC03B","#FEC13A","#FEC239","#FEC438",
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"#FEC537","#FEC735","#FEC834","#FECA33","#FDCB32","#FDCD31","#FDCE31","#FCD030","#FBD22F","#FBD32E",
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"#FAD52E","#F9D62D","#F9D82C","#F8D92B","#F7DB2A","#F7DD2A","#F6DE29","#F6E028","#F5E128","#F5E327",
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"#F5E526","#F5E626","#F5E825","#F5E924","#F5EB23","#F5EC22","#F5EE21","#F6EF20","#F6F11F","#F6F21E",
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"#F7F41C","#F7F51B","#F8F71A","#F8F818","#F9F916","#F9FB15"
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]
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let minIntensity = shakemaps.map { $0.intensity }.min() ?? 0
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let maxIntensity = shakemaps.map { $0.intensity }.max() ?? 255
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let indexColor = if minIntensity == maxIntensity {
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0
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} else {
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Int(round((intensity-minIntensity)/(maxIntensity-minIntensity)*255))
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}
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let lineColor = UIColor(hexString: shakemapColors[indexColor]) ?? .white
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let textColor: UIColor = indexColor < 65 ? .white : .black
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return (textColor: textColor, lineColor: lineColor)
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}
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}
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extension EQNMapAnnotationShakemap {
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func toAnnotationView(
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mapView: MKMapView,
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style: MapPinStyle,
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isUserSelection: Bool = false
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) -> MKAnnotationView? {
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switch style {
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case .full, .light:
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let identifier = EQNSeismicAnnotationView.identifier(for: style)
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let annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier, for: self) as! EQNSeismicAnnotationView
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annotationView.magnitude = String(format: "%.1f", shakemap.intensity)
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annotationView.magnitudeTextColor = intensityTextColor ?? .black
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annotationView.magnitudeBackgroundColor = intensityColor
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annotationView.canShowCallout = true
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return annotationView
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case .circle:
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return nil
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}
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}
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}
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fileprivate class ShakemapPolyline: MKPolyline {
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var intensity: Float = 0
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var intensityColor: UIColor = .white
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}
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