Created
February 11, 2024 14:28
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Add customizable and localized phrases to a Swift Packages
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| // | |
| // Localization.swift | |
| // | |
| // | |
| // Created by Fausto Ristagno on 11/02/24. | |
| // | |
| import SwiftUI | |
| public struct PhraseKey : Hashable, RawRepresentable, ExpressibleByStringLiteral { | |
| public let rawValue: String | |
| public init(rawValue: String) { | |
| self.rawValue = rawValue | |
| } | |
| public init(stringLiteral value: StringLiteralType) { | |
| self.init(rawValue: value) | |
| } | |
| } | |
| public struct Phrase { | |
| public let key: PhraseKey | |
| public let text: String | |
| public init(key: PhraseKey, text: some StringProtocol) { | |
| self.key = key | |
| self.text = "\(text)" | |
| } | |
| } | |
| struct PhrasesDictionary { | |
| let defaultPhrases: [PhraseKey: Phrase] | |
| var phrases: [PhraseKey: Phrase] = [:] | |
| init(defaultPhrases phrases: [Phrase]) { | |
| var defaultPhrasesDict = [PhraseKey: Phrase]() | |
| for phrase in phrases { | |
| assert(defaultPhrasesDict[phrase.key] == nil, "Phrase with key '\(phrase.key.rawValue)' already has a default text") | |
| defaultPhrasesDict[phrase.key] = phrase | |
| } | |
| self.defaultPhrases = defaultPhrasesDict | |
| } | |
| func phrase(for key: PhraseKey) -> String { | |
| if let phrase = phrases[key] { | |
| return "\(phrase.text)" | |
| } | |
| assert(defaultPhrases[key] != nil, "Phrase for key '\(key.rawValue)' missing") | |
| return "\(defaultPhrases[key]!.text)" | |
| } | |
| mutating func add(phrase: Phrase) { | |
| self.phrases[phrase.key] = phrase | |
| } | |
| mutating func add(phrases: [Phrase]) { | |
| for phrase in phrases { | |
| add(phrase: phrase) | |
| } | |
| } | |
| } |
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| class MyClass { | |
| var phrases = PhrasesDictionary(defaultPhrases: [ | |
| .init(key: .cancelBtn, text: "Cancel"), | |
| .init(key: .interstitialAlertTitle, text: "Upgrade plan"), | |
| .init(key: .interstitialAlertWatchAd, text: "Watch ad"), | |
| .init(key: .interstitialAlertDiscoverPro, text: "Discover PRO upgrade"), | |
| ]) | |
| init(phrases: [PhraseKey: String] = [:]) { | |
| for (phraseKey, text) in phrases { | |
| self.phrases.add(phrase: .init(key: phraseKey, text: text)) | |
| } | |
| } | |
| } | |
| extension PhraseKey { | |
| public static let interstitialAlertTitle: Self = "interstitialAlertTitle" | |
| public static let interstitialAlertWatchAd: Self = "interstitialAlertWatchAd" | |
| public static let interstitialAlertDiscoverPro: Self = "interstitialAlertDiscoverPro" | |
| public static let cancelBtn: Self = "cancelBtn" | |
| } |
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