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refactor!: Context APIs changes and documentation/onboarding (#180)
release-as: 1.2.0
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...DemoApp/ConfidenceDemoApp/Assets.xcassets/AppIcon.appiconset/ConfidenceLogo.png
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ConfidenceDemoApp/ConfidenceDemoApp/Assets.xcassets/AppIcon.appiconset/Contents.json
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111 changes: 76 additions & 35 deletions
111
ConfidenceDemoApp/ConfidenceDemoApp/ConfidenceDemoApp.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,50 +1,91 @@ | ||
| import Confidence | ||
| import SwiftUI | ||
|
|
||
| class Status: ObservableObject { | ||
| enum State { | ||
| case unknown | ||
| case ready | ||
| case error(Error?) | ||
| } | ||
| @main | ||
| struct ConfidenceDemoApp: App { | ||
| @AppStorage("loggedUser") | ||
| private var loggedUser: String? | ||
| @AppStorage("appVersion") | ||
| private var appVersion = 0 | ||
|
|
||
| @Published var state: State = .unknown | ||
| } | ||
| private let confidence: Confidence | ||
| private let flaggingState = ExperimentationFlags() | ||
| private let secret = ProcessInfo.processInfo.environment["CLIENT_SECRET"] ?? "<Empty Secret>" | ||
|
|
||
| init() { | ||
| @AppStorage("appVersion") var appVersion = 0 | ||
| @AppStorage("loggedUser") var loggedUser: String? | ||
| appVersion += 1 // Simulate update of the app on every new run | ||
| var context = ["app_version": ConfidenceValue.init(integer: appVersion)] | ||
| if let user = loggedUser { | ||
| context["user_id"] = ConfidenceValue.init(string: user) | ||
| } | ||
|
|
||
| @main | ||
| struct ConfidenceDemoApp: App { | ||
| @StateObject private var lifecycleObserver = ConfidenceAppLifecycleProducer() | ||
| confidence = Confidence | ||
| .Builder(clientSecret: secret, loggerLevel: .TRACE) | ||
| .withContext(initialContext: context) | ||
| .build() | ||
| do { | ||
| // NOTE: here we are activating all the flag values from storage, regardless of how `context` looks now | ||
| try confidence.activate() | ||
| } catch { | ||
| flaggingState.state = .error(ExperimentationFlags.CustomError(message: error.localizedDescription)) | ||
| } | ||
| // flaggingState.color is set here at startup and remains immutable until a user logs out | ||
| let eval = confidence.getEvaluation( | ||
| key: "swift-demoapp.color", | ||
| defaultValue: "Gray") | ||
| flaggingState.color = ContentView.getColor( | ||
| color: eval.value) | ||
| flaggingState.reason = eval.reason | ||
|
|
||
| self.appVersion = appVersion | ||
| self.loggedUser = loggedUser | ||
| updateConfidence() | ||
| } | ||
|
|
||
| var body: some Scene { | ||
| WindowGroup { | ||
| let secret = ProcessInfo.processInfo.environment["CLIENT_SECRET"] ?? "" | ||
| let confidence = Confidence.Builder(clientSecret: secret, loggerLevel: .TRACE) | ||
| .withContext(initialContext: [ | ||
| "targeting_key": ConfidenceValue(string: UUID.init().uuidString), | ||
| "user_id": .init(string: "user2") | ||
| ]) | ||
| .build() | ||
|
|
||
| let status = Status() | ||
|
|
||
| ContentView(confidence: confidence, status: status) | ||
| .task { | ||
| do { | ||
| confidence.track(producer: lifecycleObserver) | ||
| try await self.setup(confidence: confidence) | ||
| status.state = .ready | ||
| } catch { | ||
| status.state = .error(error) | ||
| print(error.localizedDescription) | ||
| } | ||
| } | ||
| if loggedUser == nil { | ||
| LoginView(confidence: confidence) | ||
| .environmentObject(flaggingState) | ||
| } else { | ||
| ContentView(confidence: confidence) | ||
| .environmentObject(flaggingState) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private func updateConfidence() { | ||
| Task { | ||
| do { | ||
| flaggingState.state = .loading | ||
| try await Task.sleep(nanoseconds: 2 * 1_000_000_000) // simulating slow network | ||
| // The flags in storage are refreshed for the current `context`, and activated | ||
| // After this line, fresh (and potentially new) flags values can be accessed | ||
| try await confidence.fetchAndActivate() | ||
| flaggingState.state = .ready | ||
| } catch { | ||
| flaggingState.state = .error(ExperimentationFlags.CustomError(message: error.localizedDescription)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| extension ConfidenceDemoApp { | ||
| func setup(confidence: Confidence) async throws { | ||
| try await confidence.fetchAndActivate() | ||
| class ExperimentationFlags: ObservableObject { | ||
| var color: Color = .red // This is set on applicaaton start, and reset on user logout | ||
| var reason: ResolveReason = .unknown | ||
| @Published var state: State = .notReady | ||
|
|
||
| enum State: Equatable { | ||
| case unknown | ||
| case notReady | ||
| case loading | ||
| case ready | ||
| case error(CustomError?) | ||
| } | ||
|
|
||
| public struct CustomError: Error, Equatable { | ||
| let message: String | ||
| } | ||
| } |
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