Andrea Busi
94 lines
3.4 KiB
Swift
94 lines
3.4 KiB
Swift
//
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// SeismicNetworkViewModel.swift
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// Earthquake Network
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//
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// Created by Andrea Busi on 15/03/21.
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// Copyright © 2021 Earthquake Network. All rights reserved.
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//
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import Foundation
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struct SeismicNetworkViewModel {
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let place: String
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let network: String
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let isPreliminary: Bool
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let magnitude: String
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let rawMagnitude: Double
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let depth: String
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let time: String
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let distance: String
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let coordinate: String
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let population: String
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let smartphones: String
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let users: String
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// MARK: - Init
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init(seismic: EQNSisma) {
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self.place = seismic.place
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self.network = seismic.provider
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self.rawMagnitude = seismic.magnitude.doubleValue
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let isPreliminary = seismic.preliminary.intValue > 0
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self.isPreliminary = isPreliminary
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if isPreliminary {
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let lowerValue = seismic.magnitude.doubleValue - seismic.magnitudeRange.doubleValue/2.0
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let upperValue = seismic.magnitude.doubleValue + seismic.magnitudeRange.doubleValue/2.0
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self.magnitude = String(format: "%.1f-%.1f\(seismic.magnitudeType)", lowerValue, upperValue)
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self.depth = ""
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} else {
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self.magnitude = String(format: "%.1f%@", seismic.magnitude.doubleValue, seismic.magnitudeType)
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self.depth = String(format: "%.1f km ↓", seismic.depth.doubleValue)
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}
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// we need to check agains null values, because sometimes WS returns invalid dates
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if let date = seismic.date {
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let formattedDate = EQNUtility.formattedDate(from: date)
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let time = EQNUtility.formattedString(forTimeDifference: Int(seismic.timeDifference))
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self.time = "\(formattedDate) - \(time)"
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} else {
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self.time = "no time available"
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}
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// distance
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let distanceRounded = Int(round(seismic.userDistance))
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self.distance = String(format: NSLocalizedString("official_distance", comment: ""), distanceRounded)
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let coordinateText = EQNUtility.coordinateString(coordinate: seismic.coordinate.coordinate)
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self.coordinate = "\(coordinateText)"
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let population = Self.formatPopulation(seismic.population100km)
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self.population = String(format: NSLocalizedString("share_radius100", comment: ""), population)
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if seismic.smartphoneNumber.intValue > 0 {
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self.smartphones = String(format: NSLocalizedString("official_smartphones", comment: ""), seismic.smartphoneNumber)
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} else {
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self.smartphones = ""
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}
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if seismic.userNumber.intValue > 0 {
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self.users = String(format: NSLocalizedString("official_reports", comment: ""), seismic.userNumber)
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} else {
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self.users = ""
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}
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}
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// MARK: - Private
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/// Format population value (ex. 1.5M, 2.4k)
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private static func formatPopulation(_ population: Double) -> String {
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var populationString = ""
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if population > 999_999 {
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let roundedPopulation = round(population / 100_000) / 10
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populationString = "\(roundedPopulation)M"
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} else if population > 999 {
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let roundedPopulation = round(population / 100) / 10
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populationString = "\(roundedPopulation)K"
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} else {
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let roundedPopulation = round(population)
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populationString = "\(roundedPopulation)"
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}
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return populationString
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}
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}
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