mirror of
https://github.com/JohnEstropia/CoreStore.git
synced 2026-09-10 11:52:00 +02:00
WIP
This commit is contained in:
John Estropia
@@ -2,18 +2,17 @@
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// Demo
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// Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
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import Combine
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import CoreStore
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import SwiftUI
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// MARK: - Modern.PokedexDemo
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extension Modern.PokedexDemo {
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// MARK: - Modern.PokedexDemo.MainView
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struct MainView<ListView: View>: View {
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// MARK: Internal
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init(
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@@ -22,16 +21,16 @@ extension Modern.PokedexDemo {
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self.listView = listView
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}
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// MARK: View
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var body: some View {
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ZStack {
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self.listView()
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.frame(minHeight: 0, maxHeight: .infinity)
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.edgesIgnoringSafeArea(.vertical)
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.frame(minHeight: 0, maxHeight: .infinity)
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.ignoresSafeArea(.container, edges: .vertical)
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if self.pokedexEntries.isEmpty {
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@@ -56,10 +55,10 @@ extension Modern.PokedexDemo {
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.padding()
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}
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}
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.navigationBarTitle("Pokedex")
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.navigationTitle("Pokedex")
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}
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// MARK: Private
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@ListState(
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@@ -68,28 +67,10 @@ extension Modern.PokedexDemo {
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in: Modern.PokedexDemo.dataStack
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)
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private var pokedexEntries
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@ObservedObject
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private var service: Modern.PokedexDemo.Service = .init()
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@State
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private var service = Modern.PokedexDemo.Service()
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private let listView: () -> ListView
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}
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}
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#if DEBUG
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@available(iOS 14.0, *)
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struct _Demo_Modern_PokedexDemo_MainView_Preview: PreviewProvider {
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// MARK: PreviewProvider
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static var previews: some View {
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Modern.PokedexDemo.MainView(
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listView: Modern.PokedexDemo.UIKit.ListView.init
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)
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}
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}
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#endif
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@@ -2,64 +2,48 @@
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// Demo
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// Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
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import Foundation
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import Combine
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import CoreData
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import CoreStore
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import UIKit
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import Foundation
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import Observation
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// MARK: - Modern.PokedexDemo
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extension Modern.PokedexDemo {
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// MARK: - Modern.PokedexDemo.Service
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final class Service: ObservableObject {
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@MainActor
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@Observable
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final class Service {
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/**
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⭐️ Sample 1: Importing a list of JSON data into `ImportableUniqueObject`s whose `ImportSource` are tuples
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*/
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private static func importPokedexEntries(
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from output: URLSession.DataTaskPublisher.Output
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) -> Future<Void, Modern.PokedexDemo.Service.Error> {
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private static func importPokedexEntries(from data: Data) async throws {
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return .init { promise in
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do {
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Modern.PokedexDemo.dataStack.perform(
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asynchronous: { transaction -> Void in
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let json: Dictionary<String, Any> = try self.parseJSON(
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try JSONSerialization.jsonObject(with: output.data, options: [])
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)
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let results: [Dictionary<String, Any>] = try self.parseJSON(
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json["results"]
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)
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_ = try transaction.importUniqueObjects(
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Into<Modern.PokedexDemo.PokedexEntry>(),
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sourceArray: results.enumerated().map { (index, json) in
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(index: index, json: json)
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}
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)
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},
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success: { result in
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promise(.success(result))
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},
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failure: { error in
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switch error {
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case .userError(let error as Modern.PokedexDemo.Service.Error):
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promise(.failure(error))
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case .userError(let error):
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promise(.failure(.otherError(error)))
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case let error:
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promise(.failure(.saveError(error)))
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try await Modern.PokedexDemo.dataStack.async.perform { transaction -> Void in
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let json: Dictionary<String, Any> = try self.parseJSON(
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try JSONSerialization.jsonObject(with: data, options: [])
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)
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let results: [Dictionary<String, Any>] = try self.parseJSON(
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json["results"]
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)
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_ = try transaction.importUniqueObjects(
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Into<Modern.PokedexDemo.PokedexEntry>(),
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sourceArray: results.enumerated().map { index, json in
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(index: index, json: json)
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}
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}
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)
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)
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}
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}
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catch {
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throw self.mapError(error)
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}
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}
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@@ -67,134 +51,93 @@ extension Modern.PokedexDemo {
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⭐️ Sample 2: Importing a single JSON data into an `ImportableUniqueObject` whose `ImportSource` is a JSON `Dictionary`
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*/
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private static func importSpecies(
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for details: ObjectSnapshot<Modern.PokedexDemo.Details>,
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from output: URLSession.DataTaskPublisher.Output
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) -> Future<ObjectSnapshot<Modern.PokedexDemo.Species>, Modern.PokedexDemo.Service.Error> {
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for detailsObjectID: NSManagedObjectID,
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from data: Data
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) async throws -> ObjectSnapshot<Modern.PokedexDemo.Species> {
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return .init { promise in
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let speciesObjectID = try await Modern.PokedexDemo.dataStack.async.perform { transaction -> NSManagedObjectID in
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Modern.PokedexDemo.dataStack.perform(
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asynchronous: { transaction -> Modern.PokedexDemo.Species in
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let json: Dictionary<String, Any> = try self.parseJSON(
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try JSONSerialization.jsonObject(with: output.data, options: [])
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)
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guard
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let species = try transaction.importUniqueObject(
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Into<Modern.PokedexDemo.Species>(),
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source: json
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)
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else {
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throw Modern.PokedexDemo.Service.Error.unexpected
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}
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details.asEditable(in: transaction)?.species = species
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return species
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},
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success: { species in
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promise(.success(species.asSnapshot(in: Modern.PokedexDemo.dataStack)!))
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},
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failure: { error in
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switch error {
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case .userError(let error as Modern.PokedexDemo.Service.Error):
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promise(.failure(error))
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case .userError(let error):
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promise(.failure(.otherError(error)))
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case let error:
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promise(.failure(.saveError(error)))
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}
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}
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let json: Dictionary<String, Any> = try self.parseJSON(
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try JSONSerialization.jsonObject(with: data, options: [])
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)
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guard
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let species = try transaction.importUniqueObject(
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Into<Modern.PokedexDemo.Species>(),
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source: json
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)
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else {
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throw Modern.PokedexDemo.Service.Error.unexpected
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}
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transaction
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.edit(Into<Modern.PokedexDemo.Details>(), detailsObjectID)?
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.species = species
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return species.objectID()
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}
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guard
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let species: Modern.PokedexDemo.Species = Modern.PokedexDemo.dataStack.fetchExisting(speciesObjectID),
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let snapshot = species.asSnapshot()
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else {
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throw Modern.PokedexDemo.Service.Error.unexpected
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}
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return snapshot
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}
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/**
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⭐️ Sample 3: Importing a list of JSON data into `ImportableUniqueObject`s whose `ImportSource` are JSON `Dictionary`s
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*/
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private static func importForms(
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for details: ObjectSnapshot<Modern.PokedexDemo.Details>,
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from outputs: [URLSession.DataTaskPublisher.Output]
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) -> Future<Void, Modern.PokedexDemo.Service.Error> {
|
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for detailsObjectID: NSManagedObjectID,
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from dataArray: [Data]
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) async throws {
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return .init { promise in
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do {
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Modern.PokedexDemo.dataStack.perform(
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asynchronous: { transaction -> Void in
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let forms = try transaction.importUniqueObjects(
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Into<Modern.PokedexDemo.Form>(),
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sourceArray: outputs.map { output in
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return try self.parseJSON(
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try JSONSerialization.jsonObject(with: output.data, options: [])
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)
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}
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)
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guard !forms.isEmpty else {
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try await Modern.PokedexDemo.dataStack.async.perform { transaction -> Void in
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let forms = try transaction.importUniqueObjects(
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Into<Modern.PokedexDemo.Form>(),
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sourceArray: dataArray.map { data in
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throw Modern.PokedexDemo.Service.Error.unexpected
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try self.parseJSON(
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try JSONSerialization.jsonObject(with: data, options: [])
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) as [String: Any]
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}
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details.asEditable(in: transaction)?.forms = forms
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},
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success: {
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)
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guard !forms.isEmpty else {
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promise(.success(()))
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},
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failure: { error in
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switch error {
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case .userError(let error as Modern.PokedexDemo.Service.Error):
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promise(.failure(error))
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case .userError(let error):
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promise(.failure(.otherError(error)))
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|
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case let error:
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promise(.failure(.saveError(error)))
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}
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throw Modern.PokedexDemo.Service.Error.unexpected
|
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}
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)
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transaction
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.edit(Into<Modern.PokedexDemo.Details>(), detailsObjectID)?
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.forms = forms
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}
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}
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catch {
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|
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throw self.mapError(error)
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}
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}
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// MARK: Internal
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private(set) var isLoading: Bool = false {
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willSet {
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self.objectWillChange.send()
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}
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}
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private(set) var lastError: (error: Modern.PokedexDemo.Service.Error, retry: () -> Void)? {
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|
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willSet {
|
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self.objectWillChange.send()
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}
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}
|
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private(set) var isLoading: Bool = false
|
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|
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init() {}
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|
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static func parseJSON<Output>(
|
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|
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static nonisolated func parseJSON<Output>(
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_ json: Any?,
|
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file: StaticString = #file,
|
||||
line: Int = #line
|
||||
) throws -> Output {
|
||||
|
||||
|
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switch json {
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|
||||
|
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case let json as Output:
|
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return json
|
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|
||||
|
||||
case let any:
|
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throw Modern.PokedexDemo.Service.Error.parseError(
|
||||
expected: Output.self,
|
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@@ -203,20 +146,20 @@ extension Modern.PokedexDemo {
|
||||
)
|
||||
}
|
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}
|
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|
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static func parseJSON<JSONType, Output>(
|
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|
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static nonisolated func parseJSON<JSONType, Output>(
|
||||
_ json: Any?,
|
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transformer: (JSONType) throws -> Output?,
|
||||
file: StaticString = #file,
|
||||
line: Int = #line
|
||||
) throws -> Output {
|
||||
|
||||
|
||||
switch json {
|
||||
|
||||
|
||||
case let json as JSONType:
|
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let transformed = try transformer(json)
|
||||
if let json = transformed {
|
||||
|
||||
|
||||
return json
|
||||
}
|
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throw Modern.PokedexDemo.Service.Error.parseError(
|
||||
@@ -224,7 +167,7 @@ extension Modern.PokedexDemo {
|
||||
actual: type(of: transformed),
|
||||
file: "\(file):\(line)"
|
||||
)
|
||||
|
||||
|
||||
case let any:
|
||||
throw Modern.PokedexDemo.Service.Error.parseError(
|
||||
expected: Output.self,
|
||||
@@ -233,153 +176,235 @@ extension Modern.PokedexDemo {
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
func fetchPokedexEntries() {
|
||||
|
||||
self.cancellable["pokedexEntries"] = self.pokedexEntries
|
||||
.receive(on: DispatchQueue.main)
|
||||
.handleEvents(
|
||||
receiveSubscription: { [weak self] _ in
|
||||
|
||||
guard let self = self else {
|
||||
|
||||
return
|
||||
}
|
||||
self.lastError = nil
|
||||
self.isLoading = true
|
||||
}
|
||||
)
|
||||
.sink(
|
||||
receiveCompletion: { [weak self] completion in
|
||||
|
||||
guard let self = self else {
|
||||
|
||||
return
|
||||
}
|
||||
self.isLoading = false
|
||||
switch completion {
|
||||
|
||||
case .finished:
|
||||
self.lastError = nil
|
||||
|
||||
case .failure(let error):
|
||||
print(error)
|
||||
self.lastError = (
|
||||
error: error,
|
||||
retry: { [weak self] in
|
||||
|
||||
self?.fetchPokedexEntries()
|
||||
}
|
||||
)
|
||||
}
|
||||
},
|
||||
receiveValue: {}
|
||||
)
|
||||
|
||||
self.pokedexEntriesTask?.cancel()
|
||||
self.pokedexEntriesTask = Task { [weak self] in
|
||||
|
||||
await self?.runFetchPokedexEntries()
|
||||
}
|
||||
}
|
||||
|
||||
func fetchDetails(for pokedexEntry: ObjectSnapshot<Modern.PokedexDemo.PokedexEntry>) {
|
||||
|
||||
self.fetchSpeciesIfNeeded(for: pokedexEntry)
|
||||
}
|
||||
|
||||
|
||||
// MARK: Private
|
||||
|
||||
private var cancellable: Dictionary<String, AnyCancellable> = [:]
|
||||
|
||||
private lazy var pokedexEntries: AnyPublisher<Void, Modern.PokedexDemo.Service.Error> = URLSession.shared
|
||||
.dataTaskPublisher(
|
||||
for: URL(string: "https://pokeapi.co/api/v2/pokemon?limit=10000&offset=0")!
|
||||
)
|
||||
.mapError({ .networkError($0) })
|
||||
.flatMap(Self.importPokedexEntries(from:))
|
||||
.eraseToAnyPublisher()
|
||||
|
||||
private func fetchSpeciesIfNeeded(for pokedexEntry: ObjectSnapshot<Modern.PokedexDemo.PokedexEntry>) {
|
||||
|
||||
guard let details = pokedexEntry.$details?.snapshot else {
|
||||
|
||||
return
|
||||
}
|
||||
if let species = details.$species?.snapshot {
|
||||
|
||||
self.fetchFormsIfNeeded(for: species)
|
||||
self.fetchFormsIfNeeded(
|
||||
key: species.$id,
|
||||
detailsObjectID: details.objectID(),
|
||||
species: species
|
||||
)
|
||||
return
|
||||
}
|
||||
self.cancellable["species.\(pokedexEntry.$id)"] = URLSession.shared
|
||||
.dataTaskPublisher(for: pokedexEntry.$speciesURL)
|
||||
.mapError({ .networkError($0) })
|
||||
.flatMap({ Self.importSpecies(for: details, from: $0) })
|
||||
.sink(
|
||||
receiveCompletion: { completion in
|
||||
|
||||
switch completion {
|
||||
|
||||
case .finished:
|
||||
break
|
||||
|
||||
case .failure(let error):
|
||||
print(error)
|
||||
}
|
||||
},
|
||||
receiveValue: { species in
|
||||
|
||||
self.fetchFormsIfNeeded(for: species)
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
private func fetchFormsIfNeeded(for species: ObjectSnapshot<Modern.PokedexDemo.Species>) {
|
||||
|
||||
guard
|
||||
let details = species.$details?.snapshot,
|
||||
details.$forms.isEmpty
|
||||
else {
|
||||
let key = pokedexEntry.$id
|
||||
guard self.detailTasks[key] == nil else {
|
||||
|
||||
return
|
||||
}
|
||||
self.cancellable["forms.\(species.$id)"] = species
|
||||
.$formsURLs
|
||||
.map(
|
||||
{
|
||||
URLSession.shared
|
||||
.dataTaskPublisher(for: $0)
|
||||
.mapError({ Modern.PokedexDemo.Service.Error.networkError($0) })
|
||||
.eraseToAnyPublisher()
|
||||
}
|
||||
)
|
||||
.reduce(
|
||||
into: Just<[URLSession.DataTaskPublisher.Output]>([])
|
||||
.setFailureType(to: Modern.PokedexDemo.Service.Error.self)
|
||||
.eraseToAnyPublisher(),
|
||||
{ (result, publisher) in
|
||||
result = result
|
||||
.zip(publisher, { $0 + [$1] })
|
||||
.eraseToAnyPublisher()
|
||||
}
|
||||
)
|
||||
.flatMap({ Self.importForms(for: details, from: $0) })
|
||||
.sink(
|
||||
receiveCompletion: { completion in
|
||||
|
||||
switch completion {
|
||||
|
||||
case .finished:
|
||||
break
|
||||
|
||||
case .failure(let error):
|
||||
print(error)
|
||||
}
|
||||
},
|
||||
receiveValue: { _ in }
|
||||
let speciesURL = pokedexEntry.$speciesURL
|
||||
let detailsObjectID = details.objectID()
|
||||
self.detailTasks[key] = Task { [weak self] in
|
||||
|
||||
guard let self else {
|
||||
|
||||
return
|
||||
}
|
||||
defer {
|
||||
|
||||
self.detailTasks.removeValue(forKey: key)
|
||||
}
|
||||
await self.fetchSpecies(
|
||||
key: key,
|
||||
detailsObjectID: detailsObjectID,
|
||||
speciesURL: speciesURL
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
// MARK: Private
|
||||
|
||||
@ObservationIgnored
|
||||
private static let pokedexURL = URL(
|
||||
string: "https://pokeapi.co/api/v2/pokemon?limit=10000&offset=0"
|
||||
)!
|
||||
|
||||
@ObservationIgnored
|
||||
private var pokedexEntriesTask: Task<Void, Never>?
|
||||
|
||||
@ObservationIgnored
|
||||
private var detailTasks: [String: Task<Void, Never>] = [:]
|
||||
|
||||
private static func mapError(_ error: CoreStoreError) -> Modern.PokedexDemo.Service.Error {
|
||||
|
||||
switch error {
|
||||
case .userError(let error as Modern.PokedexDemo.Service.Error):
|
||||
return error
|
||||
|
||||
case .userError(let error):
|
||||
return .otherError(error)
|
||||
|
||||
case let error:
|
||||
return .saveError(error)
|
||||
}
|
||||
}
|
||||
|
||||
private func runFetchPokedexEntries() async {
|
||||
|
||||
self.isLoading = true
|
||||
defer {
|
||||
|
||||
self.isLoading = false
|
||||
self.pokedexEntriesTask = nil
|
||||
}
|
||||
|
||||
do {
|
||||
|
||||
let (data, _) = try await URLSession.shared.data(from: Self.pokedexURL)
|
||||
try Task.checkCancellation()
|
||||
try await Self.importPokedexEntries(from: data)
|
||||
}
|
||||
catch is CancellationError {
|
||||
|
||||
return
|
||||
}
|
||||
catch let error as Modern.PokedexDemo.Service.Error {
|
||||
|
||||
print(error)
|
||||
}
|
||||
catch let error as URLError {
|
||||
|
||||
print(Modern.PokedexDemo.Service.Error.networkError(error))
|
||||
}
|
||||
catch {
|
||||
|
||||
print(Modern.PokedexDemo.Service.Error.otherError(error))
|
||||
}
|
||||
}
|
||||
|
||||
private func fetchSpecies(
|
||||
key: String,
|
||||
detailsObjectID: NSManagedObjectID,
|
||||
speciesURL: URL
|
||||
) async {
|
||||
|
||||
do {
|
||||
|
||||
let (data, _) = try await URLSession.shared.data(from: speciesURL)
|
||||
try Task.checkCancellation()
|
||||
|
||||
let species = try await Self.importSpecies(
|
||||
for: detailsObjectID,
|
||||
from: data
|
||||
)
|
||||
guard species.$details?.snapshot?.$forms.isEmpty == true else {
|
||||
|
||||
return
|
||||
}
|
||||
await self.fetchForms(
|
||||
detailsObjectID: detailsObjectID,
|
||||
formsURLs: species.$formsURLs
|
||||
)
|
||||
}
|
||||
catch is CancellationError {
|
||||
|
||||
return
|
||||
}
|
||||
catch let error as Modern.PokedexDemo.Service.Error {
|
||||
|
||||
print(error)
|
||||
}
|
||||
catch let error as URLError {
|
||||
|
||||
print(Modern.PokedexDemo.Service.Error.networkError(error))
|
||||
}
|
||||
catch {
|
||||
|
||||
print(Modern.PokedexDemo.Service.Error.otherError(error))
|
||||
}
|
||||
}
|
||||
|
||||
private func fetchFormsIfNeeded(
|
||||
key: String,
|
||||
detailsObjectID: NSManagedObjectID,
|
||||
species: ObjectSnapshot<Modern.PokedexDemo.Species>
|
||||
) {
|
||||
|
||||
guard species.$details?.snapshot?.$forms.isEmpty == true else {
|
||||
|
||||
return
|
||||
}
|
||||
guard self.detailTasks[key] == nil else {
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
let formsURLs = species.$formsURLs
|
||||
self.detailTasks[key] = Task { [weak self] in
|
||||
|
||||
guard let self else {
|
||||
|
||||
return
|
||||
}
|
||||
defer {
|
||||
|
||||
self.detailTasks.removeValue(forKey: key)
|
||||
}
|
||||
await self.fetchForms(
|
||||
detailsObjectID: detailsObjectID,
|
||||
formsURLs: formsURLs
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
private func fetchForms(
|
||||
detailsObjectID: NSManagedObjectID,
|
||||
formsURLs: [URL]
|
||||
) async {
|
||||
|
||||
do {
|
||||
|
||||
var dataArray: [Data] = []
|
||||
dataArray.reserveCapacity(formsURLs.count)
|
||||
|
||||
for url in formsURLs {
|
||||
let (data, _) = try await URLSession.shared.data(from: url)
|
||||
try Task.checkCancellation()
|
||||
dataArray.append(data)
|
||||
}
|
||||
try await Self.importForms(
|
||||
for: detailsObjectID,
|
||||
from: dataArray
|
||||
)
|
||||
}
|
||||
catch is CancellationError {
|
||||
|
||||
return
|
||||
}
|
||||
catch let error as Modern.PokedexDemo.Service.Error {
|
||||
|
||||
print(error)
|
||||
}
|
||||
catch let error as URLError {
|
||||
|
||||
print(Modern.PokedexDemo.Service.Error.networkError(error))
|
||||
}
|
||||
catch {
|
||||
|
||||
print(Modern.PokedexDemo.Service.Error.otherError(error))
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// MARK: - Modern.PokedexDemo.Service.Error
|
||||
|
||||
|
||||
enum Error: Swift.Error {
|
||||
|
||||
|
||||
case networkError(URLError)
|
||||
case parseError(expected: Any.Type, actual: Any.Type, file: String)
|
||||
case saveError(CoreStoreError)
|
||||
|
||||
@@ -12,12 +12,11 @@ extension Modern.PokedexDemo.UIKit {
|
||||
// MARK: - Modern.PokedexDemo.ListView
|
||||
|
||||
struct ListView: UIViewControllerRepresentable {
|
||||
|
||||
|
||||
// MARK: Internal
|
||||
|
||||
|
||||
init() {
|
||||
|
||||
self.service = Modern.PokedexDemo.Service.init()
|
||||
self._service = State(initialValue: Modern.PokedexDemo.Service())
|
||||
self.listPublisher = Modern.PokedexDemo.dataStack
|
||||
.publishList(
|
||||
From<Modern.PokedexDemo.PokedexEntry>()
|
||||
@@ -41,30 +40,20 @@ extension Modern.PokedexDemo.UIKit {
|
||||
func updateUIViewController(_ uiViewController: UIViewControllerType, context: Self.Context) {}
|
||||
|
||||
static func dismantleUIViewController(_ uiViewController: UIViewControllerType, coordinator: Void) {}
|
||||
|
||||
|
||||
|
||||
|
||||
// MARK: Private
|
||||
|
||||
@ObservedObject
|
||||
|
||||
@State
|
||||
private var service: Modern.PokedexDemo.Service
|
||||
|
||||
|
||||
private let listPublisher: ListPublisher<Modern.PokedexDemo.PokedexEntry>
|
||||
}
|
||||
}
|
||||
|
||||
#if DEBUG
|
||||
|
||||
struct _Demo_Modern_PokedexDemo_UIKit_ListView_Preview: PreviewProvider {
|
||||
|
||||
// MARK: PreviewProvider
|
||||
|
||||
static var previews: some View {
|
||||
|
||||
let service = Modern.PokedexDemo.Service()
|
||||
service.fetchPokedexEntries()
|
||||
|
||||
return Modern.PokedexDemo.UIKit.ListView()
|
||||
}
|
||||
// MARK: - Preview
|
||||
|
||||
#Preview {
|
||||
Modern.PokedexDemo.UIKit.ListView()
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
@@ -11,12 +11,13 @@ extension Modern {
|
||||
// MARK: - Modern.PokedexDemo
|
||||
|
||||
/**
|
||||
Sample usages for importing external data into `CoreStoreObject` attributes
|
||||
*/
|
||||
Sample usages for importing external data into `CoreStoreObject` attributes
|
||||
*/
|
||||
enum PokedexDemo {
|
||||
|
||||
// MARK: Internal
|
||||
|
||||
@MainActor
|
||||
static let dataStack: DataStack = {
|
||||
|
||||
let dataStack = DataStack(
|
||||
@@ -49,6 +50,7 @@ extension Modern {
|
||||
return dataStack
|
||||
}()
|
||||
|
||||
@MainActor
|
||||
static let pokedexEntries: ListPublisher<Modern.PokedexDemo.PokedexEntry> = Modern.PokedexDemo.dataStack.publishList(
|
||||
From<Modern.PokedexDemo.PokedexEntry>()
|
||||
.orderBy(.ascending(\.$index))
|
||||
|
||||
Reference in New Issue
Block a user