mastodon-ios/Mastodon/Scene/Report/ReportStatus/ReportStatusViewModel.swift

78 lines
2.1 KiB
Swift

//
// ReportStatusViewModel.swift
// Mastodon
//
// Created by MainasuK on 2022-5-10.
//
import Combine
import CoreData
import CoreDataStack
import Foundation
import GameplayKit
import MastodonSDK
import OrderedCollections
import UIKit
import MastodonCore
class ReportStatusViewModel {
var disposeBag = Set<AnyCancellable>()
weak var delegate: ReportStatusViewControllerDelegate?
// input
let context: AppContext
let authContext: AuthContext
let user: ManagedObjectRecord<MastodonUser>
let status: ManagedObjectRecord<Status>?
let statusFetchedResultsController: StatusFetchedResultsController
let listBatchFetchViewModel = ListBatchFetchViewModel()
@Published var isSkip = false
@Published var selectStatuses = OrderedSet<ManagedObjectRecord<Status>>()
// output
var diffableDataSource: UITableViewDiffableDataSource<ReportSection, ReportItem>?
private(set) lazy var stateMachine: GKStateMachine = {
let stateMachine = GKStateMachine(states: [
State.Initial(viewModel: self),
State.Fail(viewModel: self),
State.Idle(viewModel: self),
State.Loading(viewModel: self),
State.NoMore(viewModel: self),
])
stateMachine.enter(State.Initial.self)
return stateMachine
}()
@Published var isNextButtonEnabled = false
init(
context: AppContext,
authContext: AuthContext,
user: ManagedObjectRecord<MastodonUser>,
status: ManagedObjectRecord<Status>?
) {
self.context = context
self.authContext = authContext
self.user = user
self.status = status
self.statusFetchedResultsController = StatusFetchedResultsController(
managedObjectContext: context.managedObjectContext,
domain: authContext.mastodonAuthenticationBox.domain,
additionalTweetPredicate: nil
)
// end init
if let status = status {
selectStatuses.append(status)
}
$selectStatuses
.map { !$0.isEmpty }
.assign(to: &$isNextButtonEnabled)
}
}