openapi-generator-original/modules/swagger-codegen/src/main/resources/swift3/Models.mustache

// Models.swift
//
// Generated by swagger-codegen
// https://github.com/swagger-api/swagger-codegen
//

import Foundation

protocol JSONEncodable {
    func encodeToJSON() -> Any
}

public enum ErrorResponse : Error {
    case Error(Int, Data?, Error)
}

open class Response<T> {
    open let statusCode: Int
    open let header: [String: String]
    open let body: T?

    public init(statusCode: Int, header: [String: String], body: T?) {
        self.statusCode = statusCode
        self.header = header
        self.body = body
    }

    public convenience init(response: HTTPURLResponse, body: T?) {
        let rawHeader = response.allHeaderFields
        var header = [String:String]()
        for (key, value) in rawHeader {
            header[key as! String] = value as? String
        }
        self.init(statusCode: response.statusCode, header: header, body: body)
    }
}

private var once = Int()
class Decoders {
    static fileprivate var decoders = Dictionary<String, ((AnyObject) -> AnyObject)>()

    static func addDecoder<T>(clazz: T.Type, decoder: @escaping ((AnyObject) -> T)) {
        let key = "\(T.self)"
        decoders[key] = { decoder($0) as AnyObject }
    }

    static func decode<T>(clazz: [T].Type, source: AnyObject) -> [T] {
        let array = source as! [AnyObject]
        return array.map { Decoders.decode(clazz: T.self, source: $0) }
    }

    static func decode<T, Key: Hashable>(clazz: [Key:T].Type, source: AnyObject) -> [Key:T] {
        let sourceDictionary = source as! [Key: AnyObject]
        var dictionary = [Key:T]()
        for (key, value) in sourceDictionary {
            dictionary[key] = Decoders.decode(clazz: T.self, source: value)
        }
        return dictionary
    }

    static func decode<T>(clazz: T.Type, source: AnyObject) -> T {
        initialize()
        if T.self is Int32.Type && source is NSNumber {
            return source.int32Value as! T;
        }
        if T.self is Int64.Type && source is NSNumber {
            return source.int64Value as! T;
        }
        if T.self is UUID.Type && source is String {
            return UUID(uuidString: source as! String) as! T
        }
        if source is T {
            return source as! T
        }
        if T.self is Data.Type && source is String {
            return Data(base64Encoded: source as! String) as! T
        }

        let key = "\(T.self)"
        if let decoder = decoders[key] {
           return decoder(source) as! T
        } else {
            fatalError("Source \(source) is not convertible to type \(clazz): Maybe swagger file is insufficient")
        }
    }

    static func decodeOptional<T>(clazz: T.Type, source: AnyObject?) -> T? {
        if source is NSNull {
            return nil
        }
        return source.map { (source: AnyObject) -> T in
            Decoders.decode(clazz: clazz, source: source)
        }
    }

    static func decodeOptional<T>(clazz: [T].Type, source: AnyObject?) -> [T]? {
        if source is NSNull {
            return nil
        }
        return source.map { (someSource: AnyObject) -> [T] in
            Decoders.decode(clazz: clazz, source: someSource)
        }
    }

    static func decodeOptional<T, Key: Hashable>(clazz: [Key:T].Type, source: AnyObject?) -> [Key:T]? {
        if source is NSNull {
            return nil
        }
        return source.map { (someSource: AnyObject) -> [Key:T] in
            Decoders.decode(clazz: clazz, source: someSource)
        }
    }

    private static var __once: () = {
        let formatters = [
            "yyyy-MM-dd",
            "yyyy-MM-dd'T'HH:mm:ssZZZZZ",
            "yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ",
            "yyyy-MM-dd'T'HH:mm:ss'Z'",
            "yyyy-MM-dd'T'HH:mm:ss.SSS"
        ].map { (format: String) -> DateFormatter in
            let formatter = DateFormatter()
            formatter.dateFormat = format
            return formatter
        }
        // Decoder for Date
        Decoders.addDecoder(clazz: Date.self) { (source: AnyObject) -> Date in
           if let sourceString = source as? String {
                for formatter in formatters {
                    if let date = formatter.date(from: sourceString) {
                        return date
                    }
                }
            }
            if let sourceInt = source as? Int {
                // treat as a java date
                return Date(timeIntervalSince1970: Double(sourceInt / 1000) )
            }
            fatalError("formatter failed to parse \(source)")
        } {{#models}}{{#model}}

        // Decoder for [{{{classname}}}]
        Decoders.addDecoder(clazz: [{{{classname}}}].self) { (source: AnyObject) -> [{{{classname}}}] in
            return Decoders.decode(clazz: [{{{classname}}}].self, source: source)
        }
        // Decoder for {{{classname}}}
        Decoders.addDecoder(clazz: {{{classname}}}.self) { (source: AnyObject) -> {{{classname}}} in
{{#isArrayModel}}
            let sourceArray = source as! [AnyObject]
            return sourceArray.map({ Decoders.decode(clazz: {{{arrayModelType}}}.self, source: $0) })
{{/isArrayModel}}
{{^isArrayModel}}
{{#isEnum}}
            if let source = source as? {{dataType}} {
                if let result = {{classname}}(rawValue: source) {
                    return result
                }
            }
            fatalError("Source \(source) is not convertible to enum type {{classname}}: Maybe swagger file is insufficient")
{{/isEnum}}
{{^isEnum}}
{{#vars.isEmpty}}
            if let source = source as? {{dataType}} {
                return source
            }
            fatalError("Source \(source) is not convertible to typealias {{classname}}: Maybe swagger file is insufficient")
{{/vars.isEmpty}}
{{^vars.isEmpty}}
            let sourceDictionary = source as! [AnyHashable: Any]
            {{#unwrapRequired}}
            let instance = {{classname}}({{#requiredVars}}{{^-first}}, {{/-first}}{{#isEnum}}{{name}}: {{classname}}.{{datatypeWithEnum}}(rawValue: (sourceDictionary["{{baseName}}"] as! {{datatype}}))! {{/isEnum}}{{^isEnum}}{{name}}: Decoders.decode(clazz: {{{baseType}}}.self, source: sourceDictionary["{{baseName}}"]! as AnyObject){{/isEnum}}{{/requiredVars}})
            {{#optionalVars}}{{#isEnum}}
            if let {{name}} = sourceDictionary["{{baseName}}"] as? {{datatype}} { {{^isContainer}}
                instance.{{name}} = {{classname}}.{{datatypeWithEnum}}(rawValue: ({{name}})){{/isContainer}}{{#isListContainer}}
                instance.{{name}}  = {{name}}.map ({ {{classname}}.{{enumName}}(rawValue: $0)! }){{/isListContainer}}
            }{{/isEnum}}{{^isEnum}}
            instance.{{name}} = Decoders.decodeOptional(clazz: {{{baseType}}}.self, source: sourceDictionary["{{baseName}}"] as AnyObject?){{/isEnum}}
            {{/optionalVars}}
            {{/unwrapRequired}}
            {{^unwrapRequired}}
            let instance = {{classname}}(){{#vars}}{{#isEnum}}
            if let {{name}} = sourceDictionary["{{baseName}}"] as? {{datatype}} { {{^isContainer}}
                instance.{{name}} = {{classname}}.{{datatypeWithEnum}}(rawValue: ({{name}})){{/isContainer}}{{#isListContainer}}
                instance.{{name}}  = {{name}}.map ({ {{classname}}.{{enumName}}(rawValue: $0)! }){{/isListContainer}}{{#isMapContainer}}//TODO: handle enum map scenario{{/isMapContainer}}
            }{{/isEnum}}
            {{^isEnum}}instance.{{name}} = Decoders.decodeOptional(clazz: {{{baseType}}}.self, source: sourceDictionary["{{baseName}}"] as AnyObject?){{/isEnum}}{{/vars}}
            {{/unwrapRequired}}
            return instance
{{/vars.isEmpty}}
{{/isEnum}}
{{/isArrayModel}}
        }{{/model}}
        {{/models}}
    }()

    static fileprivate func initialize() {
        _ = Decoders.__once
    }
}