NetNewsWire/Frameworks/Articles/Author.swift

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