Javier Cicchelli
c8d2c288af
This PR contains the work done to fetch a set of locations from a remote server to then persist them into the persistence stack and finally to display these data into the locations list screen. To give further details about the work done: - [x] implemented the `LoadingSpinnerView` and `ErrorMessageView` custom views; - [x] implemented the outlets of the `LocationsListViewController` view controller; - [x] add properties and functions to the `LocationsListViewModeling` protocol to support reactive updates, load data, and table data source conformances; - [x] deactivated the Location entity code generation from the Core Data model in the `Persistence` library; - [x] add fetch requests builder functions to the `NSFetchRequest+Location` extension in the `Persistence` library; - [x] implemented the `LoadRemoteLocationUseCase` use case; - [x] implemented the loading of locations in the LocationsListViewModel view model; - [x] implemented properties and functions in the LocationsListViewModel view model to support the table data source conformance of the `LocationsListViewController` view controller; - [x] implemented the `LocationViewCell` custom cell; - [x] registered the `LocationViewCell` with the table of the `LocationsListViewController` view controller and implemented its update with real data from Location entities. Co-authored-by: Javier Cicchelli <javier@rock-n-code.com> Reviewed-on: rock-n-code/deep-linking-assignment#10
76 lines
1.9 KiB
Swift
76 lines
1.9 KiB
Swift
//
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// LoadRemoteLocationsUseCase.swift
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// Locations
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//
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// Created by Javier Cicchelli on 12/04/2023.
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// Copyright © 2023 Röck+Cöde. All rights reserved.
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//
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import CoreData
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import Dependency
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import Persistence
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import Remote
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struct LoadRemoteLocationsUseCase {
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// MARK: Properties
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private let persistence: PersistenceService
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private let remoteService: RemoteService
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// MARK: Initialisers
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init(
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persistence: PersistenceService,
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remoteService: RemoteService
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) {
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self.persistence = persistence
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self.remoteService = remoteService
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}
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func callAsFunction() async throws {
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let context = persistence.makeTaskContext()
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let fetchRequest = NSFetchRequest<Persistence.Location>.allLocations()
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try await context.perform {
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let localLocations = try context.fetch(fetchRequest)
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localLocations
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.filter { $0.source == .remote }
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.forEach(context.delete)
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}
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let remoteLocations = try await remoteService.getLocations()
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_ = remoteLocations
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.map {
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let entity = Persistence.Location(context: context)
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entity.createdAt = .now
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entity.name = $0.name
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entity.latitude = $0.latitude
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entity.longitude = $0.longitude
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entity.source = .remote
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return entity
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}
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persistence.save(context: context)
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}
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}
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// MARK: - LoadRemoteLocationsUseCase+Initialisers
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extension LoadRemoteLocationsUseCase {
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init() {
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@Dependency(\.persistence) var persistence
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@Dependency(\.remote) var remote
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self.init(
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persistence: persistence,
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remoteService: remote
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)
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}
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}
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