debugRevenueCatOverlay: display receiptURL (#2652)

Useful when debugging issues like #2558.

![Screenshot 2023-06-14 at 11 58
28](https://github.com/RevenueCat/purchases-ios/assets/685609/3fcb55bc-107e-46fd-aced-0d12d0667cba)

Sources/Purchasing/Purchases/Purchases.swift

@@ -1439,6 +1439,10 @@ internal extension Purchases {
         return self.systemInfo.responseVerificationMode.publicKey
     }
 
+    var receiptURL: URL? {
+        return self.receiptFetcher.receiptURL
+    }
+
 }
 
 #endif

Sources/Support/DebugUI/DebugContentViews.swift

@@ -16,6 +16,12 @@
 import StoreKit
 import SwiftUI
 
+#if os(macOS)
+import AppKit
+#endif
+
+// swiftlint:disable file_length
+
 @available(iOS 16.0, macOS 13.0, *)
 struct DebugSwiftUIRootView: View {
 
@@ -113,18 +119,35 @@ internal struct DebugSummaryView: View {
                 Text("Loading...")
 
             case let .loaded(config):
-                LabeledContent("SDK version", value: config.sdkVersion)
-                LabeledContent("Observer mode", value: config.observerMode.description)
-                LabeledContent("Sandbox", value: config.sandbox.description)
-                LabeledContent("StoreKit 2", value: config.storeKit2Enabled ? "on" : "off")
-                LabeledContent("Offline Customer Info",
-                               value: config.offlineCustomerInfoSupport ? "enabled" : "disabled")
-                LabeledContent("Entitlement Verification Mode", value: config.verificationMode)
-
-                ShareLink(item: config, preview: .init("Configuration")) {
-                    Label("Share", systemImage: "square.and.arrow.up")
+                Group {
+                    LabeledContent("SDK version", value: config.sdkVersion)
+                    LabeledContent("Observer mode", value: config.observerMode.description)
+                    LabeledContent("Sandbox", value: config.sandbox.description)
+                    LabeledContent("StoreKit 2", value: config.storeKit2Enabled ? "on" : "off")
+                    LabeledContent("Offline Customer Info",
+                                   value: config.offlineCustomerInfoSupport ? "enabled" : "disabled")
+                    LabeledContent("Entitlement Verification Mode", value: config.verificationMode)
+                    LabeledContent("Receipt URL", value: config.receiptURL?.absoluteString ?? "")
+                        #if os(macOS)
+                        .contextMenu {
+                            Button {
+                                if let url = config.receiptURL {
+                                    NSWorkspace.shared.selectFile(
+                                        nil,
+                                        inFileViewerRootedAtPath: url.deletingLastPathComponent().path
+                                    )
+                                }
+                            } label: {
+                                Text("Show in Finder")
+                            }
+                        }
+                        #endif
 
+                    ShareLink(item: config, preview: .init("Configuration")) {
+                        Label("Share", systemImage: "square.and.arrow.up")
+                    }
                 }
+                .textSelection(.enabled)
                 .frame(maxWidth: .infinity)
             }
         }

Sources/Support/DebugUI/DebugViewModel.swift

@@ -29,6 +29,7 @@ final class DebugViewModel: ObservableObject {
         var storeKit2Enabled: Bool
         var offlineCustomerInfoSupport: Bool
         var verificationMode: String
+        var receiptURL: URL?
 
     }
 
@@ -125,7 +126,8 @@ private extension DebugViewModel.Configuration {
             sandbox: purchases.isSandbox,
             storeKit2Enabled: purchases.storeKit2Setting.isEnabledAndAvailable,
             offlineCustomerInfoSupport: purchases.offlineCustomerInfoEnabled,
-            verificationMode: purchases.responseVerificationMode.display
+            verificationMode: purchases.responseVerificationMode.display,
+            receiptURL: purchases.receiptURL
         )
     }
 

Tests/UnitTests/Support/DebugViewSwiftUITests.swift

@@ -43,7 +43,8 @@ class DebugViewSwiftUITests: TestCase {
             sandbox: true,
             storeKit2Enabled: true,
             offlineCustomerInfoSupport: true,
-            verificationMode: "Enforced"
+            verificationMode: "Enforced",
+            receiptURL: URL(string: "file://receipt")
         ))
         model.diagnosticsResult = .loaded(())
         model.customerInfo = .loaded(try Self.mockCustomerInfo)