Retrieve additional map attributes to display reliable current road name. #1576
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,183 @@ | ||
| struct HighwayShield { | ||
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| enum RoadClass: String { | ||
| case alternate, duplex, business, truck, bypass, b | ||
| case oneB = "1b", twoA = "2a", twoB = "2b" | ||
| } | ||
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| enum RoadType: RawRepresentable { | ||
| typealias RawValue = String | ||
| typealias RoadTypeForLocaleRoadClassClosure = (Locale, RoadClass?) -> RoadType | ||
| typealias RoadTypeForLocaleClosure = (Locale) -> RoadType | ||
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| var rawValue: String { | ||
| switch self { | ||
| case .generic: | ||
| return "generic" | ||
| case let .motorway(locale): | ||
| return "\(locale.rawValue)-motorway" | ||
| case let .expressway(locale): | ||
| return "\(locale.rawValue)-expressway" | ||
| case let .state(locale, roadClass): | ||
| guard let currentRoadClass = roadClass else { return "\(locale)-state" } | ||
| return "\(locale.rawValue)-state-\(currentRoadClass.rawValue)" | ||
| case let .highway(locale, roadClass): | ||
| guard let currentRoadClass = roadClass else { return "\(locale)-highway" } | ||
| return "\(locale.rawValue)-highway-\(currentRoadClass.rawValue)" | ||
| case let .national(locale): | ||
| return "\(locale.rawValue)-national" | ||
| case let .federal(locale): | ||
| return "\(locale.rawValue)-federal" | ||
| case let .main(locale): | ||
| return "\(locale.rawValue)-main" | ||
| case let .road(locale): | ||
| return "\(locale.rawValue)-road" | ||
| case let .primary(locale): | ||
| return "\(locale.rawValue)-primary" | ||
| case let .secondary(locale): | ||
| return "\(locale.rawValue)-secondary" | ||
| case let .trunk(locale): | ||
| return "\(locale.rawValue)-trunk" | ||
| case let .regional(locale): | ||
| return "\(locale.rawValue)-regional" | ||
| case let .voivodeship(locale): | ||
| return "\(locale.rawValue)-voivodeship" | ||
| case let .county(locale): | ||
| return "\(locale.rawValue)-county" | ||
| case let .communal(locale): | ||
| return "\(locale)-communal" | ||
| case let .interstate(locale, roadClass): | ||
| guard let currentRoadClass = roadClass else { return "\(locale.rawValue)-interstate"} | ||
| return "\(locale.rawValue)-interstate-\(currentRoadClass.rawValue)" | ||
| case let .metropolitan(locale): | ||
| return "\(locale.rawValue)-metropolitan" | ||
| case let .provincial(locale): | ||
| return "\(locale.rawValue)-provincial" | ||
| } | ||
| } | ||
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| init?(rawValue: RawValue) { | ||
| let fields = rawValue.split(separator: "-").compactMap(String.init(_:)) | ||
| switch fields.count { | ||
| case 1 where rawValue == "default": | ||
| self = .generic | ||
| case 2: | ||
| guard let roadType = RoadType.type(for: fields.last!), | ||
| let locale = Locale(rawValue: fields.first!) else { | ||
| return nil | ||
| } | ||
| self = roadType(locale, nil) | ||
| case 3: | ||
| guard let roadType = RoadType.type(for: fields[1]), | ||
| let locale = Locale(rawValue: fields[0]), let roadClass = RoadClass(rawValue: fields[2]) else { | ||
| return nil | ||
| } | ||
| self = roadType(locale, roadClass) | ||
| default: | ||
| return nil | ||
| } | ||
| } | ||
|
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| private static func type(for identifier: String) -> RoadTypeForLocaleRoadClassClosure? { | ||
| switch identifier { | ||
| case "motorway": | ||
| return localeOnlyTransform(RoadType.motorway) | ||
| case "expressway": | ||
| return localeOnlyTransform(RoadType.expressway) | ||
| case "national": | ||
| return localeOnlyTransform(RoadType.national) | ||
| case "federal": | ||
| return localeOnlyTransform(RoadType.federal) | ||
| case "main": | ||
| return localeOnlyTransform(RoadType.main) | ||
| case "road": | ||
| return localeOnlyTransform(RoadType.road) | ||
| case "primary": | ||
| return localeOnlyTransform(RoadType.primary) | ||
| case "secondary": | ||
| return localeOnlyTransform(RoadType.secondary) | ||
| case "trunk": | ||
| return localeOnlyTransform(RoadType.trunk) | ||
| case "regional": | ||
| return localeOnlyTransform(RoadType.regional) | ||
| case "voivodeship": | ||
| return localeOnlyTransform(RoadType.voivodeship) | ||
| case "county": | ||
| return localeOnlyTransform(RoadType.county) | ||
| case "communal": | ||
| return localeOnlyTransform(RoadType.communal) | ||
| case "provincial": | ||
| return localeOnlyTransform(RoadType.provincial) | ||
| case "metropolitan": | ||
| return localeOnlyTransform(RoadType.metropolitan) | ||
| case "state": | ||
| return RoadType.state | ||
| case "highway": | ||
| return RoadType.highway | ||
| case "interstate": | ||
| return RoadType.interstate | ||
| default: | ||
| return nil | ||
| } | ||
| } | ||
|
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| static func localeOnlyTransform(_ closure: @escaping RoadTypeForLocaleClosure) -> RoadTypeForLocaleRoadClassClosure { | ||
| return { locale, _ in | ||
| return closure(locale) | ||
| } | ||
| } | ||
|
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| var textColor: UIColor? { | ||
| switch self { | ||
| case let .highway(locale, _): | ||
| if locale == .slovakia { | ||
| return .white | ||
| } | ||
| return .black | ||
| case .generic, .communal, .voivodeship, .trunk, .primary, .secondary: | ||
| return .black | ||
| case .motorway, .expressway, .road, .interstate: | ||
| return .white | ||
| case let .state(locale, roadClass): | ||
| switch locale { | ||
| case .austria, .croatia, .newZealand, | ||
| .serbia where roadClass == RoadClass.oneB: | ||
| return .white | ||
| default: | ||
| return .black | ||
| } | ||
| case .regional, .metropolitan, .provincial: | ||
| return .yellow | ||
| case let .county(locale): | ||
| if locale == .romania { | ||
| return .white | ||
| } | ||
| return .black | ||
| case let .main(locale): | ||
| if locale == .slovenia { | ||
| return .black | ||
| } | ||
| return .white | ||
| case let .national(locale): | ||
| switch locale { | ||
| case .southAfrica: | ||
| return .yellow | ||
| case .poland, .romania, .greece, .bulgeria: | ||
| return .white | ||
| default: | ||
| return .black | ||
| } | ||
| default: | ||
| return nil | ||
| } | ||
| } | ||
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| case generic, motorway(Locale), expressway(Locale), state(Locale, RoadClass?), highway(Locale, RoadClass?) | ||
| case national(Locale), federal(Locale), main(Locale), road(Locale), primary(Locale), secondary(Locale), trunk(Locale), regional(Locale) | ||
| case voivodeship(Locale), county(Locale), communal(Locale), interstate(Locale, RoadClass?), metropolitan(Locale), provincial(Locale) | ||
| } | ||
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| enum Locale: String { | ||
| case austria = "at", bulgeria = "bg", brazil = "br", switzerland = "ch", czech = "cz", germany = "de", denmark = "dk", finland = "fi", greece = "gr", croatia = "hr", hungary = "hu", india = "in", mexico = "mx", newZealand = "nz", peru = "pe", poland = "pl", romania = "ro", serbia = "rs", sweden = "se", slovenia = "si", slovakia = "sk", usa = "us", southAfrica = "za", e | ||
| } | ||
| } |
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We've already pulled this value out above. See if you can combine these if let statements.