Extract Offerings-related things into OfferingsAPI (#1706)

Extract Offerings-related things into OfferingsAPI

Sources/Networking/HTTPClient/HTTPStatusCode.swift

@@ -0,0 +1,92 @@
+//
+//  Copyright RevenueCat Inc. All Rights Reserved.
+//
+//  Licensed under the MIT License (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      https://opensource.org/licenses/MIT
+//
+//  HTTPStatusCode.swift
+//
+//  Created by César de la Vega on 4/19/21.
+//
+
+import Foundation
+
+enum HTTPStatusCode {
+
+    case success
+    case createdSuccess
+    case redirect
+    case notModified
+    case invalidRequest
+    case notFoundError
+    case internalServerError
+    case networkConnectTimeoutError
+
+    case other(Int)
+
+    private static let knownStatus: Set<HTTPStatusCode> = [
+        .success,
+        .createdSuccess,
+        .redirect,
+        .notModified,
+        .invalidRequest,
+        .notFoundError,
+        .internalServerError,
+        .networkConnectTimeoutError
+    ]
+    private static let statusByCode: [Int: HTTPStatusCode] = Self.knownStatus.dictionaryWithKeys { $0.rawValue }
+}
+
+extension HTTPStatusCode: RawRepresentable {
+
+    init(rawValue: Int) {
+        self = Self.statusByCode[rawValue] ?? .other(rawValue)
+    }
+
+    var rawValue: Int {
+        switch self {
+        case .success: return 200
+        case .createdSuccess: return 201
+        case .redirect: return 300
+        case .notModified: return 304
+        case .invalidRequest: return 400
+        case .notFoundError: return 404
+        case .internalServerError: return 500
+        case .networkConnectTimeoutError: return 599
+
+        case let .other(code): return code
+        }
+    }
+
+}
+
+extension HTTPStatusCode: ExpressibleByIntegerLiteral {
+
+    init(integerLiteral value: IntegerLiteralType) {
+        self.init(rawValue: value)
+    }
+
+}
+
+extension HTTPStatusCode: Hashable {}
+
+extension HTTPStatusCode: Codable {}
+
+extension HTTPStatusCode {
+
+    var isSuccessfulResponse: Bool {
+        return 200...299 ~= self.rawValue
+    }
+
+    var isServerError: Bool {
+        return 500...599 ~= self.rawValue
+    }
+
+    var isSuccessfullySynced: Bool {
+        return !(self.isServerError || self == .notFoundError)
+    }
+
+}