mastodon-ios/Mastodon/Service/APIService/APIService+APIError.swift

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2021-02-03 09:01:08 +01:00
//
// APIService+Error.swift
// Mastodon
//
// Created by Cirno MainasuK on 2021-2-2.
//
import UIKit
import MastodonSDK
extension APIService {
enum APIError: Error {
case implicit(ErrorReason)
case explicit(ErrorReason)
enum ErrorReason {
// application internal error
case authenticationMissing
case badRequest
case badResponse
case requestThrottle
case voteExpiredPoll
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// Server API error
case mastodonAPIError(Mastodon.API.Error)
}
private var errorReason: ErrorReason {
switch self {
case .implicit(let errorReason): return errorReason
case .explicit(let errorReason): return errorReason
}
}
}
}
// MARK: - LocalizedError
extension APIService.APIError: LocalizedError {
var errorDescription: String? {
switch errorReason {
case .authenticationMissing: return "Fail to Authenticatie"
case .badRequest: return "Bad Request"
case .badResponse: return "Bad Response"
case .requestThrottle: return "Request Throttled"
case .voteExpiredPoll: return L10n.Common.Alerts.VoteFailure.title
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case .mastodonAPIError(let error):
guard let responseError = error.mastodonError else {
guard error.httpResponseStatus != .ok else {
return "Unknown Error"
}
return error.httpResponseStatus.reasonPhrase
}
return responseError.errorDescription
}
}
var failureReason: String? {
switch errorReason {
case .authenticationMissing: return "Account credential not found."
case .badRequest: return "Request invalid."
case .badResponse: return "Response invalid."
case .requestThrottle: return "Request too frequency."
case .voteExpiredPoll: return L10n.Common.Alerts.VoteFailure.pollExpired
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case .mastodonAPIError(let error):
guard let responseError = error.mastodonError else {
return nil
}
return responseError.failureReason
}
}
var helpAnchor: String? {
switch errorReason {
case .authenticationMissing: return "Please request after authenticated."
case .badRequest: return L10n.Common.Alerts.Common.pleaseTryAgain
case .badResponse: return L10n.Common.Alerts.Common.pleaseTryAgain
case .requestThrottle: return L10n.Common.Alerts.Common.pleaseTryAgainLater
case .voteExpiredPoll: return nil
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case .mastodonAPIError(let error):
guard let responseError = error.mastodonError else {
return nil
}
return responseError.helpAnchor
}
}
}