refactor: provider logic so it can be passed into button

Author: russellwheatley

FirebaseSwiftUI/FirebaseTwitterSwiftUI/Sources/Services/TwitterProviderAuthUI.swift

@@ -44,16 +44,17 @@ public class TwitterProviderSwift: AuthProviderSwift {
   }
 }
 
-public class TwitterProviderAuthUI: TwitterProviderSwift, AuthProviderUI {
+public class TwitterProviderAuthUI: AuthProviderUI {
+  public var provider: AuthProviderSwift
+
   public init() {
-    super.init()
+    provider = TwitterProviderSwift()
   }
 
   public let id: String = "twitter"
-  public var provider: AuthProviderSwift { self }
 
   @MainActor public func authButton() -> AnyView {
-    AnyView(SignInWithTwitterButton())
+    AnyView(SignInWithTwitterButton(provider: provider))
   }
 
   // TODO: need to implement delete user protocol

FirebaseSwiftUI/FirebaseTwitterSwiftUI/Sources/Views/SignInWithTwitterButton.swift

@@ -19,13 +19,18 @@ import SwiftUI
 @MainActor
 public struct SignInWithTwitterButton {
   @Environment(AuthService.self) private var authService
-  public init() {}
+  let provider: AuthProviderSwift
+  public init(provider: AuthProviderSwift) {
+    self.provider = provider
+  }
 }
 
 extension SignInWithTwitterButton: View {
   public var body: some View {
     Button(action: {
-      // TODO: Implement Twitter sign-in action
+      Task {
+        try await authService.signIn(provider)
+      }
     }) {
       Text("Sign in with Twitter")
     }