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//
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// RouteComposer
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// BaseStep.swift
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// https://github.com/ekazaev/route-composer
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//
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// Created by Eugene Kazaev in 2018-2022.
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// Distributed under the MIT license.
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//
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// Become a sponsor:
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// https://github.com/sponsors/ekazaev
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//
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import Foundation
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import UIKit
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protocol EntitiesProvider {
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var finder: AnyFinder? { get }
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var factory: AnyFactory? { get }
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}
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protocol TaskProvider {
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var interceptor: AnyRoutingInterceptor? { get }
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var contextTask: AnyContextTask? { get }
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var postTask: AnyPostRoutingTask? { get }
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}
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struct BaseStep: RoutingStep,
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ChainableStep,
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InterceptableStep,
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PerformableStep,
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CustomStringConvertible {
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private var previousStep: RoutingStep?
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let factory: AnyFactory?
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let finder: AnyFinder?
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let interceptor: AnyRoutingInterceptor?
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let postTask: AnyPostRoutingTask?
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let contextTask: AnyContextTask?
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init(entitiesProvider: EntitiesProvider,
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taskProvider: TaskProvider) {
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self.finder = entitiesProvider.finder
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self.factory = entitiesProvider.factory
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self.interceptor = taskProvider.interceptor
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self.contextTask = taskProvider.contextTask
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self.postTask = taskProvider.postTask
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}
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func getPreviousStep(with context: AnyContext) -> RoutingStep? {
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previousStep
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}
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func perform(with context: AnyContext) throws -> PerformableStepResult {
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guard let viewController = try finder?.findViewController(with: context) else {
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if let factory {
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return .build(factory)
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} else {
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return .none
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}
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}
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return .success(viewController)
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}
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mutating func from(_ step: RoutingStep) {
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previousStep = step
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}
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public var description: String {
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var finderDescription = "None"
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var factoryDescription = "None"
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if let finder {
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finderDescription = String(describing: finder)
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}
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if let factory {
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factoryDescription = String(describing: factory)
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}
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return "BaseStep<\(finderDescription) : \(factoryDescription))>"
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}
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}
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