//
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// DictionaryTransform.swift
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// ObjectMapper
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//
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// Created by Milen Halachev on 7/20/16.
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//
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// Copyright (c) 2014-2018 Tristan Himmelman
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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 Foundation
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///Transforms [String: AnyObject] <-> [Key: Value] where Key is RawRepresentable as String, Value is Mappable
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public struct DictionaryTransform<Key, Value>: TransformType where Key: Hashable, Key: RawRepresentable, Key.RawValue == String, Value: Mappable {
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public init() {
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}
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public func transformFromJSON(_ value: Any?) -> [Key: Value]? {
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guard let json = value as? [String: Any] else {
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return nil
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}
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let result = json.reduce([:]) { (result, element) -> [Key: Value] in
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guard
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let key = Key(rawValue: element.0),
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let valueJSON = element.1 as? [String: Any],
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let value = Value(JSON: valueJSON)
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else {
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return result
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}
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var result = result
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result[key] = value
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return result
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}
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return result
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}
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public func transformToJSON(_ value: [Key: Value]?) -> Any? {
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let result = value?.reduce([:]) { (result, element) -> [String: Any] in
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let key = element.0.rawValue
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let value = element.1.toJSON()
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var result = result
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result[key] = value
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return result
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}
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return result
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}
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}
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