43 lines
1.1 KiB
Swift
43 lines
1.1 KiB
Swift
import Combine
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import Foundation
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import Models
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import SwiftGraphQL
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public extension DataService {
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func validateUsernamePublisher(username: String) -> AnyPublisher<Void, UsernameAvailabilityError> {
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let query = Selection.Query {
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try $0.validateUsername(username: username)
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}
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let path = appEnvironment.graphqlPath
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return Deferred {
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Future { promise in
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send(query, to: path) { result in
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switch result {
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case let .success(payload):
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promise(payload.data ? .success(()) : .failure(.nameUnavailable))
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case let .failure(error):
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promise(.failure(UsernameAvailabilityError.make(from: error)))
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}
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}
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}
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}
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.receive(on: DispatchQueue.main)
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.eraseToAnyPublisher()
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}
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}
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private extension UsernameAvailabilityError {
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static func make(from httpError: HttpError) -> UsernameAvailabilityError {
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switch httpError {
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case .badURL, .badpayload, .badstatus:
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return .internalServer
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case .timeout, .network:
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return .network
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case .cancelled:
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return .unknown
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}
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}
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}
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