feat: set up persistence

Memola/Persistence/Core/Persistence.swift

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+//
+//  Persistence.swift
+//  Memola
+//
+//  Created by Dscyre Scotti on 5/4/24.
+//
+
+import CoreData
+import Foundation
+
+class Persistence {
+    private let modelName = "MemolaModel"
+
+    static let shared: Persistence = Persistence()
+
+    private init() { }
+
+    var viewContext: NSManagedObjectContext {
+        persistentContainer.viewContext
+    }
+
+    lazy var persistentContainer: NSPersistentContainer = {
+        let persistentStore = NSPersistentStoreDescription()
+        persistentStore.shouldMigrateStoreAutomatically = true
+        persistentStore.shouldInferMappingModelAutomatically = true
+        let container = NSPersistentContainer(name: modelName, managedObjectModel: managedObjectModel)
+        do {
+            let coordinator = container.persistentStoreCoordinator
+            if let oldStore = coordinator.persistentStores.first {
+                try coordinator.remove(oldStore)
+            }
+            _ = try coordinator.addPersistentStore(type: .sqlite, at: sqliteURL)
+        } catch {
+            fatalError("[Memola] - \(error.localizedDescription)")
+        }
+        container.persistentStoreDescriptions = [persistentStore]
+        container.loadPersistentStores { description, error in
+            if let error {
+                fatalError("[Memola]: \(error.localizedDescription)")
+            }
+        }
+        return container
+    }()
+
+    private lazy var managedObjectModel: NSManagedObjectModel = {
+        guard let modelURL = Bundle.main.url(forResource: modelName, withExtension: ".momd"), let model = NSManagedObjectModel(contentsOf: modelURL) else {
+            fatalError("[Memola]: Unable to load model.")
+        }
+        return model
+    }()
+
+    private lazy var sqliteURL: URL = {
+        do {
+            let fileURL = try FileManager.default.url(
+                for: .documentDirectory,
+                in: .userDomainMask,
+                appropriateFor: nil,
+                create: true
+            ).appendingPathComponent("\(modelName).sqlite")
+            NSLog(fileURL.absoluteString)
+            return fileURL
+        } catch {
+            fatalError("[Memola]: \(error.localizedDescription)")
+        }
+    }()
+}

Memola/Persistence/Entities/Memo.swift

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+//
+//  Memo.swift
+//  Memola
+//
+//  Created by Dscyre Scotti on 5/4/24.
+//
+
+import CoreData
+import Foundation
+
+@objc(Memo)
+class Memo: NSManagedObject {
+    @NSManaged var id: UUID
+    @NSManaged var title: String
+    @NSManaged var data: Data
+    @NSManaged var createdAt: Date
+    @NSManaged var updatedAt: Date
+}
+
+extension Memo: Identifiable { }

Memola/Resources/Models/MemolaModel.xcdatamodeld/MemolaModel.xcdatamodel/contents

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="22222" systemVersion="23B74" minimumToolsVersion="Automatic" sourceLanguage="Swift" usedWithSwiftData="YES" userDefinedModelVersionIdentifier="">
+    <entity name="Memo" representedClassName="Memo" syncable="YES">
+        <attribute name="createdAt" attributeType="Date" usesScalarValueType="NO"/>
+        <attribute name="data" attributeType="Binary" allowsExternalBinaryDataStorage="YES"/>
+        <attribute name="id" attributeType="UUID" usesScalarValueType="NO"/>
+        <attribute name="title" attributeType="String"/>
+        <attribute name="updatedAt" attributeType="Date" usesScalarValueType="NO"/>
+    </entity>
+</model>