Version 1.0.0

Sources/LCEssentials/Extensions/LCEssentials+EncodableDecodable.swift

@@ -0,0 +1,104 @@
+//  
+// Copyright (c) 2020 Loverde Co.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+ 
+
+import Foundation
+
+//MARK: - Codables convertions
+public extension Encodable {
+    subscript(key: String) -> Any? {
+        return dictionary[key]
+    }
+    var dictionary: [String: Any] {
+        return (try? JSONSerialization.jsonObject(with: JSONEncoder().encode(self))) as? [String: Any] ?? [:]
+    }
+    var json: String {
+        return self.dictionary.convertToJSON
+    }
+    
+    var data: Data {
+        return self.json.data
+    }
+}
+
+extension JSONDecoder {
+    
+    /// - LoverdeCo: Decode JSON Data to Object
+    ///
+    /// - Parameter data: Data
+    /// - returns: Object: Codable/Decodable
+    public static func decode<T: Codable>(data: Data) throws -> T {
+        var error = NSError(domain: "", code: 0)
+        let decoder = JSONDecoder()
+        decoder.keyDecodingStrategy = .useDefaultKeys
+        do {
+            return try decoder.decode(T.self, from: data)
+        } catch let DecodingError.keyNotFound(key, context) {
+            let msg = "Missing key '\(key.stringValue)' in \(T.self) Object in JSON: \(context.debugDescription)"
+            error = NSError.createErrorWith(code: 0, description: msg, reasonForError: msg)
+        } catch let DecodingError.typeMismatch(type, context) {
+            let msg = "Type mismatch for type '\(type)' \(T.self) Object: \(context.debugDescription)"
+            error = NSError.createErrorWith(code: 0, description: msg, reasonForError: msg)
+        } catch let DecodingError.valueNotFound(value, context) {
+            let msg = "Missing value '\(value)' in \(T.self) Object in JSON: \(context.debugDescription)"
+            error = NSError.createErrorWith(code: 0, description: msg, reasonForError: msg)
+        } catch {
+            throw error
+        }
+        throw error
+    }
+    
+    /// - LoverdeCo: Decode JSON String to Object
+    ///
+    /// - Parameter json: String
+    /// - returns: Object: Codable/Decodable
+    public static func decode<T: Codable>(_ json: String, using encoding: String.Encoding = .utf8) throws -> T {
+        var error = NSError()
+        if let jsonData = json.data(using: .utf8) {
+            do {
+                return try decode(data: jsonData)
+            } catch {
+                throw error
+            }
+        }
+        throw error
+    }
+    
+    /// - LoverdeCo: Decode JSON URL to Object
+    ///
+    /// - Parameter url: URL
+    /// - returns: Object: Codable/Decodable
+    public static func decode<T: Codable>(fromURL url: URL) throws -> T {
+        return try decode(data: try! Data(contentsOf: url))
+    }
+    
+    public static func decode<T: Codable>(dictionary: Any) throws -> T {
+        do {
+            let json = try JSONSerialization.data(withJSONObject: dictionary)
+            let decoder = JSONDecoder()
+            decoder.keyDecodingStrategy = .convertFromSnakeCase
+            return try decoder.decode(T.self, from: json)
+        } catch {
+            printError(title: "JSONDecoder.decode<T: Codable>", msg: error, prettyPrint: true)
+            throw error
+        }
+    }
+}