Juraldinio
94 lines
2.9 KiB
Swift
94 lines
2.9 KiB
Swift
//
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// AccountServiceUpdate.swift
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// Malinka
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//
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// Created by NUT.Tech on 29.09.2022.
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// Copyright © 2022 NUT.Tech. All rights reserved.
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//
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import Foundation
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import Combine
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import WalletFoundation
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import WalletKit
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import WalletNetwork
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extension Account.Service {
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final class Update {
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// MARK: - Constants
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private enum Constants {
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static let timerInterval = 3
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static let maximumRefreshCount = 5
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}
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static let shared = Update()
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// MARK: - Properties
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var selected: WalletKit.Wallet? { Accounts().current }
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var accounts: [WalletKit.Wallet] { Account.Service.shared.collection }
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private let updateSubject = CurrentValueSubject<Void, Never>(())
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var updatePublisher: AnyPublisher<Void, Never> { self.updateSubject.eraseToAnyPublisher() }
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private let accountService: AccountService?
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private var timerPublisher: DispatchTimer?
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private var refreshSubscription: AnyCancellable?
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// MARK: - Init
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private init() {
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let record = ApplicationEnvironment.shared().current
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if let environment = try? record.networkEnvironment() {
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self.accountService = AccountService(environment: environment)
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} else {
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self.accountService = nil
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}
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}
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// MARK: - Methods
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func updateAccountsStates(times: Int? = nil) {
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guard !self.refreshSubscription.isExist else { return }
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let publisher = Publishers.timer(queue: DispatchQueue.global(qos: .background),
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interval: .seconds(Constants.timerInterval),
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times: .max(times ?? Constants.maximumRefreshCount))
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self.timerPublisher = publisher
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self.refreshSubscription = publisher.sink(receiveCompletion: { [weak self] _ in
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self?.timerPublisher = nil
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self?.refreshSubscription = nil
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}, receiveValue: { [weak self] _ in
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self?.refresh()
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})
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}
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// MARK: - Private
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private func refresh() {
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Task {
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let wallets = Account.Service.shared.collection
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guard wallets.first(where: { $0.state != .accepted && $0.state != .declined }).isExist else {
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self.refreshSubscription?.cancel()
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self.refreshSubscription = nil
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self.timerPublisher = nil
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self.updateSubject.send()
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return
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}
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let bank = Account.Service.shared.bank
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try? await bank.refreshStatus(wallet: nil)
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self.updateSubject.send()
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}
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}
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}
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}
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