Added example project

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

example/lib/interfaces/debug_auth_interface.dart

@@ -0,0 +1,89 @@
+import "package:arcane_framework/arcane_framework.dart";
+
+class DebugAuthInterface implements ArcaneAuthInterface {
+  DebugAuthInterface._internal();
+
+  static final ArcaneAuthInterface _instance = DebugAuthInterface._internal();
+  static ArcaneAuthInterface get I => _instance;
+
+  @override
+  Future<bool> get isSignedIn => Future.value(_isSignedIn);
+  bool _isSignedIn = false;
+
+  @override
+  Future<String?> get accessToken => isSignedIn.then(
+        (loggedIn) => loggedIn ? "access_token" : null,
+      );
+
+  @override
+  Future<String?> get refreshToken => isSignedIn.then(
+        (loggedIn) => loggedIn ? "refresh_token" : null,
+      );
+
+  @override
+  Future<Result<void, String>> logout() async {
+    Arcane.log("Logging out");
+
+    _isSignedIn = false;
+
+    return Result.ok(null);
+  }
+
+  @override
+  Future<Result<void, String>> loginWithEmailAndPassword({
+    required String email,
+    required String password,
+  }) async {
+    final bool alreadyLoggedIn = await isSignedIn;
+
+    if (alreadyLoggedIn) return Result.ok(null);
+
+    Arcane.log("Logging in as $email");
+
+    _isSignedIn = true;
+
+    return Result.ok(null);
+  }
+
+  @override
+  Future<Result<String, String>> resendVerificationCode(String email) async {
+    Arcane.log("Re-sending verification code to $email");
+    return Result.ok("Code sent");
+  }
+
+  @override
+  Future<Result<SignUpStep, String>> signup({
+    required String password,
+    required String email,
+  }) async {
+    Arcane.log("Creating account for $email with password $password");
+    return Result.ok(SignUpStep.confirmSignUp);
+  }
+
+  @override
+  Future<Result<bool, String>> confirmSignup({
+    required String username,
+    required String confirmationCode,
+  }) async {
+    Arcane.log(
+      "Confirming registration for $username with code $confirmationCode",
+    );
+    return Result.ok(true);
+  }
+
+  @override
+  Future<Result<bool, String>> resetPassword({
+    required String email,
+    String? newPassword,
+    String? code,
+  }) async {
+    Arcane.log("Resetting password for $email");
+    return Result.ok(true);
+  }
+
+  @override
+  Future<void> init() async {
+    Arcane.log("Debug auth interface initialized.");
+    return;
+  }
+}