122 lines
2.8 KiB
Swift
122 lines
2.8 KiB
Swift
//
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// Author.swift
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// DataModel
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//
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// Created by Brent Simmons on 7/1/17.
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// Copyright © 2017 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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public struct Author: Codable, Hashable {
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public let authorID: String // calculated
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public let name: String?
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public let url: String?
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public let avatarURL: String?
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public let emailAddress: String?
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public init?(authorID: String?, name: String?, url: String?, avatarURL: String?, emailAddress: String?) {
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if name == nil && url == nil && emailAddress == nil {
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return nil
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}
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self.name = name
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self.url = url
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self.avatarURL = avatarURL
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self.emailAddress = emailAddress
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if let authorID = authorID {
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self.authorID = authorID
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}
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else {
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var s = name ?? ""
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s += url ?? ""
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s += avatarURL ?? ""
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s += emailAddress ?? ""
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self.authorID = databaseIDWithString(s)
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}
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}
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public struct Key {
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static let authorID = "authorID"
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static let name = "name"
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static let url = "url"
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static let avatarURL = "avatarURL"
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static let emailAddress = "emailAddress"
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}
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public init?(dictionary: [String: Any]) {
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self.init(authorID: dictionary[Key.authorID] as? String, name: dictionary[Key.name] as? String, url: dictionary[Key.url] as? String, avatarURL: dictionary[Key.avatarURL] as? String, emailAddress: dictionary[Key.emailAddress] as? String)
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}
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public var dictionary: [String: Any] {
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var d = [String: Any]()
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d[Key.authorID] = authorID
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if let name = name {
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d[Key.name] = name
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}
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if let url = url {
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d[Key.url] = url
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}
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if let avatarURL = avatarURL {
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d[Key.avatarURL] = avatarURL
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}
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if let emailAddress = emailAddress {
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d[Key.emailAddress] = emailAddress
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}
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return d
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}
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public static func authorsWithJSON(_ jsonString: String) -> Set<Author>? {
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// This is JSON stored in the database, not the JSON Feed version of an author.
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guard let data = jsonString.data(using: .utf8) else {
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return nil
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}
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let decoder = JSONDecoder()
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do {
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let authors = try decoder.decode([Author].self, from: data)
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return Set(authors)
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}
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catch {
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assertionFailure("JSON representation of Author array could not be decoded: \(jsonString) error: \(error)")
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}
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return nil
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}
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public static func authorsWithDiskArray(_ diskArray: [[String: Any]]) -> Set<Author>? {
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let authors = diskArray.compactMap { Author(dictionary: $0) }
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return authors.isEmpty ? nil : Set(authors)
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}
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}
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extension Set where Element == Author {
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public func diskArray() -> [[String: Any]]? {
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if self.isEmpty {
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return nil
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}
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return self.map{ $0.dictionary }
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}
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public func json() -> String? {
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let encoder = JSONEncoder()
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do {
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let jsonData = try encoder.encode(Array(self))
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return String(data: jsonData, encoding: .utf8)
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}
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catch {
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assertionFailure("JSON representation of Author array could not be encoded: \(self) error: \(error)")
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}
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return nil
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}
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}
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