Moved all the health-related entities to separate files.

968adf41 · Demid Merzlyakov · 2ecc807f · 968adf41 · 968adf41 · 968adf41
Commit 968adf41 authored Apr 12, 2021 by Demid Merzlyakov
5 changed files
--- a/1Weather.xcodeproj/project.pbxproj
+++ b/1Weather.xcodeproj/project.pbxproj
@@ -120,6 +120,9 @@
 		CDF4808F261727E00076E9F5 /* CLAuthorizationStatus+Localized.swift in Sources */ = {isa = PBXBuildFile; fileRef = CDF4808E261727E00076E9F5 /* CLAuthorizationStatus+Localized.swift */; };
 		CDF48092261729680076E9F5 /* UIApplication+Settings.swift in Sources */ = {isa = PBXBuildFile; fileRef = CDF48091261729680076E9F5 /* UIApplication+Settings.swift */; };
 		CDF9BF8E26133D050037847D /* LocationSearchCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = CDF9BF8D26133D050037847D /* LocationSearchCoordinator.swift */; };
+		CE13B72826245CE2007CBD4D /* AirQuality.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE13B72726245CE2007CBD4D /* AirQuality.swift */; };
+		CE13B72B26245D0D007CBD4D /* HealthStatus.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE13B72A26245D0D007CBD4D /* HealthStatus.swift */; };
+		CE13B72E26245D42007CBD4D /* Pollutant.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE13B72D26245D42007CBD4D /* Pollutant.swift */; };
 		CE28474F26159857006C8DC5 /* HealthSource.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE28474E26159857006C8DC5 /* HealthSource.swift */; };
 		CE28475226159A32006C8DC5 /* BlendHealthModels.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE28475126159A32006C8DC5 /* BlendHealthModels.swift */; };
 		CE28475D2615A5B3006C8DC5 /* Health.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE28475C2615A5B3006C8DC5 /* Health.swift */; };
@@ -304,6 +307,9 @@
 		CDF4808E261727E00076E9F5 /* CLAuthorizationStatus+Localized.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "CLAuthorizationStatus+Localized.swift"; sourceTree = "<group>"; };
 		CDF48091261729680076E9F5 /* UIApplication+Settings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIApplication+Settings.swift"; sourceTree = "<group>"; };
 		CDF9BF8D26133D050037847D /* LocationSearchCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocationSearchCoordinator.swift; sourceTree = "<group>"; };
+		CE13B72726245CE2007CBD4D /* AirQuality.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AirQuality.swift; sourceTree = "<group>"; };
+		CE13B72A26245D0D007CBD4D /* HealthStatus.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HealthStatus.swift; sourceTree = "<group>"; };
+		CE13B72D26245D42007CBD4D /* Pollutant.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Pollutant.swift; sourceTree = "<group>"; };
 		CE28474E26159857006C8DC5 /* HealthSource.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HealthSource.swift; sourceTree = "<group>"; };
 		CE28475126159A32006C8DC5 /* BlendHealthModels.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BlendHealthModels.swift; sourceTree = "<group>"; };
 		CE28475C2615A5B3006C8DC5 /* Health.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Health.swift; sourceTree = "<group>"; };
@@ -839,6 +845,9 @@
 			isa = PBXGroup;
 			children = (
 				CE28475C2615A5B3006C8DC5 /* Health.swift */,
+				CE13B72726245CE2007CBD4D /* AirQuality.swift */,
+				CE13B72A26245D0D007CBD4D /* HealthStatus.swift */,
+				CE13B72D26245D42007CBD4D /* Pollutant.swift */,
 			);
 			path = Health;
 			sourceTree = "<group>";
@@ -1182,6 +1191,7 @@
 				CDE2BF222609D4250085C930 /* ForecastWindSpeedCell.swift in Sources */,
 				CD866A6C260F676400E96A5C /* SettingsDetailsCellFactory.swift in Sources */,
 				CDA5543025EFA13F00A2E08C /* Measurement+String.swift in Sources */,
+				CE13B72E26245D42007CBD4D /* Pollutant.swift in Sources */,
 				CEF9596C2600C32E00975FAA /* AnalyticsEvent.swift in Sources */,
 				CEF959982600C88100975FAA /* AnalyticsParameter.swift in Sources */,
 				87C171F425FF7A4000DA3464 /* PopularCitiesManager.swift in Sources */,
@@ -1255,6 +1265,7 @@
 				CE8962AC26175DF500CA274A /* CoreCurrentWeather.swift in Sources */,
 				CE9F01BB261B31A6009BA500 /* CoreDataError.swift in Sources */,
 				CD39F2F525DE9571009FE398 /* ArrowButton.swift in Sources */,
+				CE13B72826245CE2007CBD4D /* AirQuality.swift in Sources */,
 				CE8962A526175DF500CA274A /* _CoreHourlyWeather.swift in Sources */,
 				CEDE4E8325EEFD56007457E9 /* WdtLocationResponse.swift in Sources */,
 				CD37D3FE260DF726002669D6 /* SettingsCellFactory.swift in Sources */,
@@ -1316,6 +1327,7 @@
 				CD80917B2578E4A8003541A4 /* UIViewController+Alert.swift in Sources */,
 				CEF959932600C63500975FAA /* Analytics.swift in Sources */,
 				CEDE4F0F25EFA3B4007457E9 /* UpdatableModelObjectInTime.swift in Sources */,
+				CE13B72B26245D0D007CBD4D /* HealthStatus.swift in Sources */,
 				CE8962A426175DF500CA274A /* _CorePollutant.swift in Sources */,
 				CD3F6E6925FA59D4002DB99B /* ForecastDetailPeriodButton.swift in Sources */,
 				CD37D405260DFFDD002669D6 /* CellFactory.swift in Sources */,

--- a/1Weather/Model/ModelObjects/Health/AirQuality.swift
+++ b/1Weather/Model/ModelObjects/Health/AirQuality.swift
+//
+//  AirQuality.swift
+//  1Weather
+//
+//  Created by Demid Merzlyakov on 12.04.2021.
+//
+import Foundation
+import UIKit
+public struct AirQuality: Equatable, Hashable {
+    public let index: Double
+    public let advice: String //TODO: support for localization
+    public let progress: CGFloat
+    public init(index: Double, advice: String) {
+        self.index = index
+        self.advice = advice
+        var progressValue = CGFloat(sqrt(0.1 + (index * 0.9) / 400)) // just to make it look nicer, so that we didn't have too short gradient circle in areas with generally good air.
+        progressValue = max(0, progressValue)
+        progressValue = min(1, progressValue)
+        self.progress = progressValue
+    }
+    public var status: HealthStatus {
+        switch index {
+        case 0...50: return .good
+        case 51...100: return .moderate
+        case 101...150: return .unhealthyForSensitiveGroups
+        case 151...200: return .unhealthy
+        case 201...300: return .veryUnhealthy
+        default: return .hazardous
+        }
+    }
+}
--- a/1Weather/Model/ModelObjects/Health/Health.swift
+++ b/1Weather/Model/ModelObjects/Health/Health.swift
@@ -6,7 +6,6 @@
 //
 import Foundation
-import UIKit
 public struct Health: Equatable, Hashable {
    public let lastUpdateTime: Date
@@ -14,280 +13,9 @@ public struct Health: Equatable, Hashable {
    public let pollutants: [String: Pollutant]
 }
-public struct AirQuality: Equatable, Hashable {
-    public let index: Double
-    public let advice: String //TODO: support for localization
-    public let progress: CGFloat
-    public init(index: Double, advice: String) {
-        self.index = index
-        self.advice = advice
-        var progressValue = CGFloat(sqrt(0.1 + (index * 0.9) / 400)) // just to make it look nicer, so that we didn't have too short gradient circle in areas with generally good air.
-        progressValue = max(0, progressValue)
-        progressValue = min(1, progressValue)
-        self.progress = progressValue
-    }
-    public var status: HealthStatus {
-        switch index {
-        case 0...50: return .good
-        case 51...100: return .moderate
-        case 101...150: return .unhealthyForSensitiveGroups
-        case 151...200: return .unhealthy
-        case 201...300: return .veryUnhealthy
-        default: return .hazardous
-        }
-    }
-}
-public enum HealthStatus: String {
-    case good = "health.airquality.status.good"
-    case moderate = "health.airquality.status.moderate"
-    case unhealthyForSensitiveGroups = "health.airquality.status.unhealthyForSensitiveGroups"
-    case unhealthy = "health.airquality.status.unhealthy"
-    case veryUnhealthy = "health.airquality.status.veryUnhealthy"
-    case hazardous = "health.airquality.status.hazardous"
-    public var localized: String {
-        return self.rawValue.localized()
-    }
-    public var textColor: UIColor {
-        get {
-            switch self {
-            case .good:
-                guard let result = UIColor(named: "good_text") else {
-                    assertionFailure("Color not available fair quality good_textor !")
-                    return UIColor(red: 8.0 / 255.0, green: 207.0 / 255.0, blue: 0.0 / 97.0, alpha: 1.0)
-                }
-                return result
-            case .moderate:
-                guard let result = UIColor(named: "moderate_text") else {
-                    assertionFailure("Color not available for air quality moderate_text!")
-                    return UIColor(red: 255.0 / 255.0, green: 191.0 / 255.0, blue: 69.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .unhealthyForSensitiveGroups:
-                guard let result = UIColor(named: "unhealthy_for_sensitive_groups_text") else {
-                    assertionFailure("Color not available for air quality unhealthy_for_sensitive_groups_text!")
-                    return UIColor(red: 255.0 / 255.0, green: 127.0 / 255.0, blue: 0.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .unhealthy:
-                guard let result = UIColor(named: "unhealthy_text") else {
-                    assertionFailure("Color not available for air quality unhealthy_text!")
-                    return UIColor(red: 237.0 / 255.0, green: 81.0 / 255.0, blue: 81.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .veryUnhealthy:
-                guard let result = UIColor(named: "very_unhealthy_text") else {
-                    assertionFailure("Color not available for air quality very_unhealthy_text!")
-                    return UIColor(red: 143.0 / 255.0, green: 63.0 / 255.0, blue: 151.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .hazardous:
-                guard let result = UIColor(named: "hazardous_text") else {
-                    assertionFailure("Color not available for air quality hazardous_text!")
-                    return UIColor(red: 126.0 / 255.0, green: 0.0 / 255.0, blue: 34.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            }
-        }
-    }
-    public var gradientColorStart: UIColor {
-        get {
-            switch self {
-            case .good:
-                guard let result = UIColor(named: "good_start") else {
-                    assertionFailure("Color not available fair quality good_startor !")
-                    return UIColor(red: 33.0 / 255.0, green: 238.0 / 255.0, blue: 0.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .moderate:
-                guard let result = UIColor(named: "moderate_start") else {
-                    assertionFailure("Color not available for air quality moderate_start!")
-                    return UIColor(red: 255.0 / 255.0, green: 110.0 / 255.0, blue: 16.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .unhealthyForSensitiveGroups:
-                guard let result = UIColor(named: "unhealthy_for_sensitive_groups_start") else {
-                    assertionFailure("Color not available for air quality unhealthy_for_sensitive_groups_start!")
-                    return UIColor(red: 255.0 / 255.0, green: 127.0 / 255.0, blue: 0.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .unhealthy:
-                guard let result = UIColor(named: "unhealthy_start") else {
-                    assertionFailure("Color not available for air quality unhealthy_start!")
-                    return UIColor(red: 237.0 / 255.0, green: 81.0 / 255.0, blue: 81.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .veryUnhealthy:
-                guard let result = UIColor(named: "very_unhealthy_start") else {
-                    assertionFailure("Color not available for air quality very_unhealthy_start!")
-                    return UIColor(red: 143.0 / 255.0, green: 63.0 / 255.0, blue: 151.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .hazardous:
-                guard let result = UIColor(named: "hazardous_start") else {
-                    assertionFailure("Color not available for air quality hazardous_start!")
-                    return UIColor(red: 126.0 / 255.0, green: 0.0 / 255.0, blue: 34.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            }
-        }
-    }
-    public var gradientColorEnd: UIColor {
-        get {
-            switch self {
-            case .good:
-                guard let result = UIColor(named: "good_end") else {
-                    assertionFailure("Color not availableair quality good_end for !")
-                    return UIColor(red: 8.0 / 255.0, green: 207.0 / 255.0, blue: 97.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .moderate:
-                guard let result = UIColor(named: "moderate_end") else {
-                    assertionFailure("Color not available forair quality moderate_end !")
-                    return UIColor(red: 255.0 / 255.0, green: 238.0 / 255.0, blue: 65.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .unhealthyForSensitiveGroups:
-                guard let result = UIColor(named: "unhealthy_for_sensitive_groups_end") else {
-                    assertionFailure("Color not available for air quality unhealthy_for_sensitive_groups_end!")
-                    return UIColor(red: 223.0 / 255.0, green: 146.0 / 255.0, blue: 70.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .unhealthy:
-                guard let result = UIColor(named: "unhealthy_end") else {
-                    assertionFailure("Color not available for air quality unhealthy_end!")
-                    return UIColor(red: 255.0 / 255.0, green: 163.0 / 255.0, blue: 163.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .veryUnhealthy:
-                guard let result = UIColor(named: "very_unhealthy_end") else {
-                    assertionFailure("Color not available for air quality very_unhealthy_end!")
-                    return UIColor(red: 214.0 / 255.0, green: 136.0 / 255.0, blue: 221.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            case .hazardous:
-                guard let result = UIColor(named: "hazardous_end") else {
-                    assertionFailure("Color not available for air quality hazardous_end!")
-                    return UIColor(red: 205.0 / 255.0, green: 73.0 / 255.0, blue: 108.0 / 255.0, alpha: 1.0)
-                }
-                return result
-            }
-        }
-    }
-}
-public struct Pollutant: Equatable, Hashable {
-    public let name: String
-    public let value: Double
-    public let progress: CGFloat
-    public init(name: String, value: Double) {
-        self.name = name
-        self.value = value
-        var statusValue = HealthStatus.good
-        let shortName = name.trimmingCharacters(in: .whitespacesAndNewlines).replacingOccurrences(of: " ", with: "").lowercased()
-        if let statusLimits: [HealthStatus: Double] = Pollutant.upperLimits[shortName] {
-            let statusesSequence: [HealthStatus] = [.good, .moderate, .unhealthyForSensitiveGroups, .unhealthy, .veryUnhealthy, .hazardous]
-            for possibleStatus: HealthStatus in statusesSequence {
-                if let limit: Double = statusLimits[possibleStatus] {
-                    if value < limit {
-                        statusValue = possibleStatus
-                        break
-                    }
-                }
-                else {
-                    assertionFailure("No limit for status \(possibleStatus) of pollutant \(name)") // should never happen.
-                    statusValue = possibleStatus
-                    continue
-                }
-            }
-            if let veryUnhealthyUpperLimit = statusLimits[.veryUnhealthy] {
-                hazardousLevelStart = veryUnhealthyUpperLimit
-            }
-            else {
-                assertionFailure("No limit for status \(HealthStatus.veryUnhealthy) of pollutant \(name)") // should never happen.
-                hazardousLevelStart = nil
-            }
-        }
-        else {
-            assertionFailure("No limits for Pollutant \(name)!")
-            statusValue = .good
-            hazardousLevelStart = nil
-        }
-        self.status = statusValue
-        if let hazardousLevelStart = self.hazardousLevelStart {
-            var progressValue = max(0, CGFloat(value / hazardousLevelStart))
-            progressValue = min(1, progressValue)
-            self.progress = progressValue
-        }
-        else {
-            self.progress = 0.1 // not great, not terrible
-        }
-    }
-    public private (set) var status: HealthStatus
-    private let hazardousLevelStart: Double?
-    /// Climacell API reference: https://docs.tomorrow.io/reference/data-layers-air
-    private static let upperLimits: [String: [HealthStatus: Double]] = [
-        "pm10": [
-            .good: 27.0,
-            .moderate: 104.0,
-            .unhealthyForSensitiveGroups: 204.0,
-            .unhealthy: 304.0,
-            .veryUnhealthy: 390.0,
-            .hazardous: Double.infinity // 515.0
-        ],
-        "pm2.5": [
-            .good: 6.0,
-            .moderate: 24.0,
-            .unhealthyForSensitiveGroups: 45.0,
-            .unhealthy: 103.0,
-            .veryUnhealthy: 200.0,
-            .hazardous: Double.infinity // 375.0
-        ],
-        "no2": [
-            .good: 22.0,
-            .moderate: 77.0,
-            .unhealthyForSensitiveGroups: 230.0,
-            .unhealthy: 505.0,
-            .veryUnhealthy: 950.0,
-            .hazardous: Double.infinity // 1650.0
-        ],
-        "o3": [
-            .good: 27.0,
-            .moderate: 62.0,
-            .unhealthyForSensitiveGroups: 145.0,
-            .unhealthy: 185.0,
-            .veryUnhealthy: 305.0,
-            .hazardous: Double.infinity // 505.0
-        ],
-        "co": [
-            .good: 2.2,
-            .moderate: 7.0,
-            .unhealthyForSensitiveGroups: 11.0,
-            .unhealthy: 14.0,
-            .veryUnhealthy: 23.0,
-            .hazardous: Double.infinity // 41.0
-        ],
-        "so2": [
-            .good: 18.0,
-            .moderate: 56.0,
-            .unhealthyForSensitiveGroups: 131.0,
-            .unhealthy: 245.0,
-            .veryUnhealthy: 455.0,
-            .hazardous: Double.infinity // 805.0
-        ]
-    ]
-}
--- a/1Weather/Model/ModelObjects/Health/HealthStatus.swift
+++ b/1Weather/Model/ModelObjects/Health/HealthStatus.swift
+//
+//  HealthStatus.swift
+//  1Weather
+//
+//  Created by Demid Merzlyakov on 12.04.2021.
+//
+import Foundation
+import UIKit
+public enum HealthStatus: String {
+    case good = "health.airquality.status.good"
+    case moderate = "health.airquality.status.moderate"
+    case unhealthyForSensitiveGroups = "health.airquality.status.unhealthyForSensitiveGroups"
+    case unhealthy = "health.airquality.status.unhealthy"
+    case veryUnhealthy = "health.airquality.status.veryUnhealthy"
+    case hazardous = "health.airquality.status.hazardous"
+    public var localized: String {
+        return self.rawValue.localized()
+    }
+    public var textColor: UIColor {
+        get {
+            switch self {
+            case .good:
+                guard let result = UIColor(named: "good_text") else {
+                    assertionFailure("Color not available fair quality good_textor !")
+                    return UIColor(red: 8.0 / 255.0, green: 207.0 / 255.0, blue: 0.0 / 97.0, alpha: 1.0)
+                }
+                return result
+            case .moderate:
+                guard let result = UIColor(named: "moderate_text") else {
+                    assertionFailure("Color not available for air quality moderate_text!")
+                    return UIColor(red: 255.0 / 255.0, green: 191.0 / 255.0, blue: 69.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .unhealthyForSensitiveGroups:
+                guard let result = UIColor(named: "unhealthy_for_sensitive_groups_text") else {
+                    assertionFailure("Color not available for air quality unhealthy_for_sensitive_groups_text!")
+                    return UIColor(red: 255.0 / 255.0, green: 127.0 / 255.0, blue: 0.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .unhealthy:
+                guard let result = UIColor(named: "unhealthy_text") else {
+                    assertionFailure("Color not available for air quality unhealthy_text!")
+                    return UIColor(red: 237.0 / 255.0, green: 81.0 / 255.0, blue: 81.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .veryUnhealthy:
+                guard let result = UIColor(named: "very_unhealthy_text") else {
+                    assertionFailure("Color not available for air quality very_unhealthy_text!")
+                    return UIColor(red: 143.0 / 255.0, green: 63.0 / 255.0, blue: 151.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .hazardous:
+                guard let result = UIColor(named: "hazardous_text") else {
+                    assertionFailure("Color not available for air quality hazardous_text!")
+                    return UIColor(red: 126.0 / 255.0, green: 0.0 / 255.0, blue: 34.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            }
+        }
+    }
+    public var gradientColorStart: UIColor {
+        get {
+            switch self {
+            case .good:
+                guard let result = UIColor(named: "good_start") else {
+                    assertionFailure("Color not available fair quality good_startor !")
+                    return UIColor(red: 33.0 / 255.0, green: 238.0 / 255.0, blue: 0.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .moderate:
+                guard let result = UIColor(named: "moderate_start") else {
+                    assertionFailure("Color not available for air quality moderate_start!")
+                    return UIColor(red: 255.0 / 255.0, green: 110.0 / 255.0, blue: 16.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .unhealthyForSensitiveGroups:
+                guard let result = UIColor(named: "unhealthy_for_sensitive_groups_start") else {
+                    assertionFailure("Color not available for air quality unhealthy_for_sensitive_groups_start!")
+                    return UIColor(red: 255.0 / 255.0, green: 127.0 / 255.0, blue: 0.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .unhealthy:
+                guard let result = UIColor(named: "unhealthy_start") else {
+                    assertionFailure("Color not available for air quality unhealthy_start!")
+                    return UIColor(red: 237.0 / 255.0, green: 81.0 / 255.0, blue: 81.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .veryUnhealthy:
+                guard let result = UIColor(named: "very_unhealthy_start") else {
+                    assertionFailure("Color not available for air quality very_unhealthy_start!")
+                    return UIColor(red: 143.0 / 255.0, green: 63.0 / 255.0, blue: 151.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .hazardous:
+                guard let result = UIColor(named: "hazardous_start") else {
+                    assertionFailure("Color not available for air quality hazardous_start!")
+                    return UIColor(red: 126.0 / 255.0, green: 0.0 / 255.0, blue: 34.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            }
+        }
+    }
+    public var gradientColorEnd: UIColor {
+        get {
+            switch self {
+            case .good:
+                guard let result = UIColor(named: "good_end") else {
+                    assertionFailure("Color not availableair quality good_end for !")
+                    return UIColor(red: 8.0 / 255.0, green: 207.0 / 255.0, blue: 97.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .moderate:
+                guard let result = UIColor(named: "moderate_end") else {
+                    assertionFailure("Color not available forair quality moderate_end !")
+                    return UIColor(red: 255.0 / 255.0, green: 238.0 / 255.0, blue: 65.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .unhealthyForSensitiveGroups:
+                guard let result = UIColor(named: "unhealthy_for_sensitive_groups_end") else {
+                    assertionFailure("Color not available for air quality unhealthy_for_sensitive_groups_end!")
+                    return UIColor(red: 223.0 / 255.0, green: 146.0 / 255.0, blue: 70.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .unhealthy:
+                guard let result = UIColor(named: "unhealthy_end") else {
+                    assertionFailure("Color not available for air quality unhealthy_end!")
+                    return UIColor(red: 255.0 / 255.0, green: 163.0 / 255.0, blue: 163.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .veryUnhealthy:
+                guard let result = UIColor(named: "very_unhealthy_end") else {
+                    assertionFailure("Color not available for air quality very_unhealthy_end!")
+                    return UIColor(red: 214.0 / 255.0, green: 136.0 / 255.0, blue: 221.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            case .hazardous:
+                guard let result = UIColor(named: "hazardous_end") else {
+                    assertionFailure("Color not available for air quality hazardous_end!")
+                    return UIColor(red: 205.0 / 255.0, green: 73.0 / 255.0, blue: 108.0 / 255.0, alpha: 1.0)
+                }
+                return result
+            }
+        }
+    }
+}
--- a/1Weather/Model/ModelObjects/Health/Pollutant.swift
+++ b/1Weather/Model/ModelObjects/Health/Pollutant.swift
+//
+//  Pollutant.swift
+//  1Weather
+//
+//  Created by Demid Merzlyakov on 12.04.2021.
+//
+import Foundation
+import UIKit
+public struct Pollutant: Equatable, Hashable {
+    public let name: String
+    public let value: Double
+    public let progress: CGFloat
+    public init(name: String, value: Double) {
+        self.name = name
+        self.value = value
+        var statusValue = HealthStatus.good
+        let shortName = name.trimmingCharacters(in: .whitespacesAndNewlines).replacingOccurrences(of: " ", with: "").lowercased()
+        if let statusLimits: [HealthStatus: Double] = Pollutant.upperLimits[shortName] {
+            let statusesSequence: [HealthStatus] = [.good, .moderate, .unhealthyForSensitiveGroups, .unhealthy, .veryUnhealthy, .hazardous]
+            for possibleStatus: HealthStatus in statusesSequence {
+                if let limit: Double = statusLimits[possibleStatus] {
+                    if value < limit {
+                        statusValue = possibleStatus
+                        break
+                    }
+                }
+                else {
+                    assertionFailure("No limit for status \(possibleStatus) of pollutant \(name)") // should never happen.
+                    statusValue = possibleStatus
+                    continue
+                }
+            }
+            if let veryUnhealthyUpperLimit = statusLimits[.veryUnhealthy] {
+                hazardousLevelStart = veryUnhealthyUpperLimit
+            }
+            else {
+                assertionFailure("No limit for status \(HealthStatus.veryUnhealthy) of pollutant \(name)") // should never happen.
+                hazardousLevelStart = nil
+            }
+        }
+        else {
+            assertionFailure("No limits for Pollutant \(name)!")
+            statusValue = .good
+            hazardousLevelStart = nil
+        }
+        self.status = statusValue
+        if let hazardousLevelStart = self.hazardousLevelStart {
+            var progressValue = max(0, CGFloat(value / hazardousLevelStart))
+            progressValue = min(1, progressValue)
+            self.progress = progressValue
+        }
+        else {
+            self.progress = 0.1 // not great, not terrible
+        }
+    }
+    public private (set) var status: HealthStatus
+    private let hazardousLevelStart: Double?
+    /// Climacell API reference: https://docs.tomorrow.io/reference/data-layers-air
+    private static let upperLimits: [String: [HealthStatus: Double]] = [
+        "pm10": [
+            .good: 27.0,
+            .moderate: 104.0,
+            .unhealthyForSensitiveGroups: 204.0,
+            .unhealthy: 304.0,
+            .veryUnhealthy: 390.0,
+            .hazardous: Double.infinity // 515.0
+        ],
+        "pm2.5": [
+            .good: 6.0,
+            .moderate: 24.0,
+            .unhealthyForSensitiveGroups: 45.0,
+            .unhealthy: 103.0,
+            .veryUnhealthy: 200.0,
+            .hazardous: Double.infinity // 375.0
+        ],
+        "no2": [
+            .good: 22.0,
+            .moderate: 77.0,
+            .unhealthyForSensitiveGroups: 230.0,
+            .unhealthy: 505.0,
+            .veryUnhealthy: 950.0,
+            .hazardous: Double.infinity // 1650.0
+        ],
+        "o3": [
+            .good: 27.0,
+            .moderate: 62.0,
+            .unhealthyForSensitiveGroups: 145.0,
+            .unhealthy: 185.0,
+            .veryUnhealthy: 305.0,
+            .hazardous: Double.infinity // 505.0
+        ],
+        "co": [
+            .good: 2.2,
+            .moderate: 7.0,
+            .unhealthyForSensitiveGroups: 11.0,
+            .unhealthy: 14.0,
+            .veryUnhealthy: 23.0,
+            .hazardous: Double.infinity // 41.0
+        ],
+        "so2": [
+            .good: 18.0,
+            .moderate: 56.0,
+            .unhealthyForSensitiveGroups: 131.0,
+            .unhealthy: 245.0,
+            .veryUnhealthy: 455.0,
+            .hazardous: Double.infinity // 805.0
+        ]
+    ]
+}