refactor(store): move the persistence layer into a shared FlipcashStore package

Code.xcodeproj/project.pbxproj

@@ -10,6 +10,8 @@
 		47DDE1F353D72DB6C899D6E0 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EC0A077F6E7EE1EB0853134B /* Foundation.framework */; };
 		4C7D70012FC8892D0091C7A4 /* NotificationService.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 4C7D6FFA2FC8892D0091C7A4 /* NotificationService.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		4C7D80012FC8892D0091C7A4 /* FlipcashCore in Frameworks */ = {isa = PBXBuildFile; productRef = 9ABDD1942D9D7B61006B6CDA /* FlipcashCore */; };
+		4CA1B0022FD00002000AA002 /* FlipcashStore in Frameworks */ = {isa = PBXBuildFile; productRef = 4CA1B0012FD00001000AA001 /* FlipcashStore */; };
+		4CA1B0032FD00003000AA003 /* FlipcashStore in Frameworks */ = {isa = PBXBuildFile; productRef = 4CA1B0012FD00001000AA001 /* FlipcashStore */; };
 		08B8484332ED78035E9D399B /* Bugsnag in Frameworks */ = {isa = PBXBuildFile; productRef = 9ADEF1D62DD627C0001B260A /* Bugsnag */; };
 		4CB225762F77260D0075874E /* FirebaseInstallations in Frameworks */ = {isa = PBXBuildFile; productRef = 4CB225752F77260D0075874E /* FirebaseInstallations */; };
 		4CB225782F7726500075874E /* FirebaseMessaging in Frameworks */ = {isa = PBXBuildFile; productRef = 4CB225772F7726500075874E /* FirebaseMessaging */; };
@@ -157,6 +159,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				4C7D80012FC8892D0091C7A4 /* FlipcashCore in Frameworks */,
+				4CA1B0022FD00002000AA002 /* FlipcashStore in Frameworks */,
 				08B8484332ED78035E9D399B /* Bugsnag in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -176,6 +179,7 @@
 				508AF9C6D67C4CD29DE10A16 /* TweetNacl in Frameworks */,
 				9AC0156C2DA576FA0030298E /* opencv2.framework in Frameworks */,
 				9ABDD1952D9D7B61006B6CDA /* FlipcashCore in Frameworks */,
+				4CA1B0032FD00003000AA003 /* FlipcashStore in Frameworks */,
 				9ADEF1D92DD627C6001B260A /* Mixpanel in Frameworks */,
 				9AE5C0122FA10003004C0DE0 /* SharedCoreKit in Frameworks */,
 			);
@@ -322,6 +326,7 @@
 			name = NotificationService;
 			packageProductDependencies = (
 				9ABDD1942D9D7B61006B6CDA /* FlipcashCore */,
+				4CA1B0012FD00001000AA001 /* FlipcashStore */,
 				9ADEF1D62DD627C0001B260A /* Bugsnag */,
 			);
 			productName = NotificationService;
@@ -371,6 +376,7 @@
 			name = Flipcash;
 			packageProductDependencies = (
 				9ABDD1942D9D7B61006B6CDA /* FlipcashCore */,
+				4CA1B0012FD00001000AA001 /* FlipcashStore */,
 				9AC011172DA4320F0030298E /* FlipcashUI */,
 				9AD1265D2DA98ADC0048141F /* SQLite */,
 				9ADEF1D62DD627C0001B260A /* Bugsnag */,
@@ -1820,6 +1826,10 @@
 			isa = XCSwiftPackageProductDependency;
 			productName = FlipcashCore;
 		};
+		4CA1B0012FD00001000AA001 /* FlipcashStore */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = FlipcashStore;
+		};
 		9AC011172DA4320F0030298E /* FlipcashUI */ = {
 			isa = XCSwiftPackageProductDependency;
 			productName = FlipcashUI;

Flipcash/Core/Controllers/BlocklistController.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 nonisolated private let logger = Logger(label: "flipcash.blocklist-controller")
 

Flipcash/Core/Controllers/ContactDirectory.swift

@@ -6,6 +6,7 @@
 import Contacts
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 nonisolated private let logger = Logger(label: "flipcash.contact-directory")
 

Flipcash/Core/Controllers/ContactSyncController.swift

@@ -6,6 +6,7 @@
 import Contacts
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 nonisolated private let logger = Logger(label: "flipcash.contact-sync-controller")
 

Flipcash/Core/Controllers/ConversationController.swift

@@ -8,6 +8,7 @@
 import Foundation
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 
 nonisolated private let logger = Logger(label: "flipcash.conversation-controller")
 

Flipcash/Core/Controllers/HistoryController.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 private let logger = Logger(label: "flipcash.history-controller")
 

Flipcash/Core/Controllers/RatesController.swift

@@ -14,6 +14,7 @@ import Foundation
 // or these are migrated to AsyncSequence.
 @preconcurrency import Combine
 import FlipcashCore
+import FlipcashStore
 
 nonisolated private let logger = Logger(label: "flipcash.rates-controller")
 

Flipcash/Core/Screens/Main/AddMoney/AddMoneyGate.swift

@@ -5,6 +5,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 /// Read access to every balance the launch gate weighs.
 @MainActor

Flipcash/Core/Screens/Main/AddMoney/AddMoneyProcessingViewModel.swift

@@ -5,6 +5,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 
 private let logger = Logger(label: "flipcash.add-money-processing")
 

Flipcash/Core/Screens/Main/Bill/BillValuation.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 struct BillValuation: Identifiable {
 

Flipcash/Core/Screens/Main/Buy/BuyAmountViewModel.swift

@@ -7,6 +7,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 private let logger = Logger(label: "flipcash.buy-amount")

Flipcash/Core/Screens/Main/Buy/BuyConfirmationScreen.swift

@@ -5,6 +5,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 struct BuyConfirmationScreen: View {

Flipcash/Core/Screens/Main/Buy/BuyConfirmationViewModel.swift

@@ -5,6 +5,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 private let logger = Logger(label: "flipcash.buy-confirmation")

Flipcash/Core/Screens/Main/Buy/BuyFlowPath.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 /// Sub-flow path for the buy stack. The `.buy(mint)` sheet's root is
 /// `BuyAmountScreen`; secondary screens (buy summary, post-buy processing) are

Flipcash/Core/Screens/Main/Currency Convert/ConvertAmountScreen.swift

@@ -5,6 +5,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 /// Amount entry for converting a currency into a chosen destination. Pushed

Flipcash/Core/Screens/Main/Currency Convert/ConvertAmountViewModel.swift

@@ -5,6 +5,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 private let logger = Logger(label: "flipcash.convert-amount")

Flipcash/Core/Screens/Main/Currency Creation/CurrencyCreationWizardScreen.swift

@@ -6,6 +6,7 @@
 import SwiftUI
 import UniformTypeIdentifiers
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 private let logger = Logger(label: "flipcash.currency-creation")

Flipcash/Core/Screens/Main/Currency Creation/CurrencyPaymentSelectionViewModel.swift

@@ -5,6 +5,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 @Observable

Flipcash/Core/Screens/Main/Currency Info/CurrencyInfoContentV2.swift

@@ -10,6 +10,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 /// Marks the hero card as the morph destination for the wallet's tapped card.

Flipcash/Core/Screens/Main/Currency Info/CurrencyInfoScreen.swift

@@ -8,6 +8,7 @@
 import SwiftUI
 import FlipcashUI
 import FlipcashCore
+import FlipcashStore
 
 /// Thin environment-reading wrapper that hands the DI containers to
 /// ``CurrencyInfoScreenContent``, whose two-init delegation builds the `@State`

Flipcash/Core/Screens/Main/Currency Info/CurrencyInfoViewModel.swift

@@ -7,6 +7,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 
 @Observable
 class CurrencyInfoViewModel {

Flipcash/Core/Screens/Main/ExchangedBalance.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 /// A stored balance paired with its fiat value at a given rate.
 struct ExchangedBalance: Identifiable, Hashable {

Flipcash/Core/Screens/Main/Home/ActivityAvatar.swift

@@ -6,6 +6,7 @@
 import SwiftUI
 import FlipcashUI
 import FlipcashCore
+import FlipcashStore
 
 /// The avatar an activity draws — the counterparty's profile photo for peer
 /// activity (tips/sends), the token image for token activity (deposits, buys),

Flipcash/Core/Screens/Main/Home/TransactionDetailsScreen.swift

@@ -7,6 +7,7 @@ import SwiftUI
 import UIKit
 import FlipcashUI
 import FlipcashCore
+import FlipcashStore
 
 /// One activity entry in full (Figma node 9708:105260) — what opens when a row is
 /// tapped in the Wallet's Recent section, the cross-token history, or a token's

Flipcash/Core/Screens/Main/Operations/ScanCashOperation.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 private let logger = Logger(label: "flipcash.scan-cash")
 

Flipcash/Core/Screens/Main/Operations/SendCashOperation.swift

@@ -7,6 +7,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 private let logger = Logger(label: "flipcash.send-cash")
 

Flipcash/Core/Session/Session.swift

@@ -8,6 +8,7 @@
 import UIKit
 import FlipcashUI
 import FlipcashCore
+import FlipcashStore
 
 private let logger = Logger(label: "flipcash.session")
 

Flipcash/Core/Session/SessionAuthenticator.swift

@@ -7,6 +7,7 @@
 
 import SwiftUI
 import FlipcashCore
+import FlipcashStore
 import FlipcashUI
 
 private let logger = Logger(label: "flipcash.session-auth")

Flipcash/Core/Session/SessionProtocols.swift

@@ -5,6 +5,7 @@
 
 import Foundation
 import FlipcashCore
+import FlipcashStore
 
 // MARK: - Account
 

FlipcashCore/Package.swift

@@ -14,6 +14,10 @@ let package = Package(
             name: "FlipcashCore",
             targets: ["FlipcashCore"]
         ),
+        .library(
+            name: "FlipcashStore",
+            targets: ["FlipcashStore"]
+        ),
     ],
     dependencies: [
         .package(url: "https://github.com/marmelroy/PhoneNumberKit", from: "4.1.4"),
@@ -24,6 +28,9 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.81.0"),
         .package(path: "../FlipcashAPI"),
         .package(url: "https://github.com/code-payments/flipcash-shared-core-spm", .upToNextMinor(from: "0.5.0")),
+        // Branch-pinned to match the app project's own reference to the same fork. SPM resolves one
+        // version of it for the whole graph, so the two have to agree.
+        .package(url: "https://github.com/dbart01/SQLite.swift", branch: "master"),
     ],
     targets: [
         .target(
@@ -43,6 +50,17 @@ let package = Package(
                 .copy("Resources/discrete_cumulative_table.bin"),
             ]
         ),
+        // The SQLite store, shared by the app and the notification service extension. It is a
+        // separate target rather than part of `FlipcashCore` so that everything depending on the
+        // models does not also pull in SQLite.
+        .target(
+            name: "FlipcashStore",
+            dependencies: [
+                "FlipcashCore",
+                .product(name: "Logging", package: "swift-log"),
+                .product(name: "SQLite", package: "SQLite.swift"),
+            ]
+        ),
         .testTarget(
             name: "FlipcashCoreTests",
             dependencies: [

Flipcash/Core/Controllers/Database/Database+Activities.swift → FlipcashCore/Sources/FlipcashStore/Database+Activities.swift

@@ -13,7 +13,7 @@ nonisolated extension Database {
 
     // MARK: - Get -
 
-    func getLatestActivityID() throws -> PublicKey? {
+    public func getLatestActivityID() throws -> PublicKey? {
         let statement = try reader.prepareRowIterator("""
         SELECT
             a.id
@@ -32,7 +32,7 @@ nonisolated extension Database {
         return ids.first
     }
 
-    func getPendingActivityIDs() throws -> [PublicKey] {
+    public func getPendingActivityIDs() throws -> [PublicKey] {
         let statement = try reader.prepareRowIterator("""
         SELECT
             a.id
@@ -55,7 +55,7 @@ nonisolated extension Database {
     /// serialises access through its own dispatch queue; this wrapper only
     /// hops off main so the caller's actor isn't blocked on up-to-1024
     /// `NSDateFormatter.dateFromString(_:)` calls.
-    func getActivities(mint: PublicKey) async throws -> [Activity] {
+    public func getActivities(mint: PublicKey) async throws -> [Activity] {
         try await withCheckedThrowingContinuation { continuation in
             DispatchQueue.global(qos: .userInitiated).async {
                 do {
@@ -68,7 +68,7 @@ nonisolated extension Database {
         }
     }
 
-    func getActivities(mint: PublicKey) throws -> [Activity] {
+    public func getActivities(mint: PublicKey) throws -> [Activity] {
         let statement = try reader.prepareRowIterator("""
         SELECT
             a.id,
@@ -115,7 +115,7 @@ nonisolated extension Database {
     /// The unified, cross-mint recent activity for the wallet preview: the newest
     /// `limit` activities regardless of token. `getActivities(mint:)` is the
     /// per-token slice; this is the "everything" feed.
-    func getRecentActivities(limit: Int) throws -> [Activity] {
+    public func getRecentActivities(limit: Int) throws -> [Activity] {
         let statement = try reader.prepareRowIterator("""
         SELECT
             a.id,
@@ -250,7 +250,7 @@ nonisolated extension Database {
 
     // MARK: - Insert -
 
-    func insertActivities(activities: [Activity]) throws {
+    public func insertActivities(activities: [Activity]) throws {
         try activities.forEach {
             try insertActivity(activity: $0)
         }