87 lines
3.2 KiB
Swift
87 lines
3.2 KiB
Swift
//
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// Copyright (c) 2022 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import TIFoundationUtils
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import TINetworking
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open class RequestExecutor<S: Decodable, AE: Decodable, NE>: Cancellable {
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public typealias ExecutionCompletion = (EndpointRecoverableRequestResult<S, AE, NE>) -> Void
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public typealias ExecutionClosure = (@escaping ExecutionCompletion) -> Cancellable
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public typealias SuccessCompletion = (S) -> Void
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public typealias FailureCompletion = (ErrorCollection<EndpointErrorResult<AE, NE>>) -> Void
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private let executionClosure: ExecutionClosure
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private var executingRequest: Cancellable?
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private var attemptsLeft: Int
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public var successCompletion: SuccessCompletion
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public var failureCompletion: FailureCompletion?
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public init(executionClosure: @escaping ExecutionClosure,
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successCompletion: @escaping SuccessCompletion,
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failureCompletion: FailureCompletion? = nil,
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numberOfAttempts: Int = 3) {
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self.executionClosure = executionClosure
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self.successCompletion = successCompletion
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self.failureCompletion = failureCompletion
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self.attemptsLeft = numberOfAttempts
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}
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open func execute() {
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cancel()
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executingRequest = executionClosure { [weak self] in
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switch $0 {
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case let .success(result):
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self?.handle(successResult: result)
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case let .failure(errorCollection):
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self?.handle(failure: errorCollection)
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}
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}
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}
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open func handle(successResult: S) {
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successCompletion(successResult)
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}
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open func handle(failure: ErrorCollection<EndpointErrorResult<AE, NE>>) {
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if shouldRetry(failure: failure) && attemptsLeft > 0 {
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attemptsLeft -= 1
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execute()
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} else {
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failureCompletion?(failure)
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}
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}
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open func shouldRetry(failure: ErrorCollection<EndpointErrorResult<AE, NE>>) -> Bool {
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if case .networkError = failure.failures.first {
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return true
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}
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return false
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}
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open func cancel() {
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executingRequest?.cancel()
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}
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}
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