Renamed because we just call out view models Models

Multiplatform/Shared/Add/AddWebFeedModel.swift

@@ -0,0 +1,132 @@
+//
+//  AddWebFeedModel.swift
+//  NetNewsWire
+//
+//  Created by Stuart Breckenridge on 4/7/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+import Account
+import RSCore
+import SwiftUI
+
+enum AddWebFeedError: LocalizedError {
+	
+	case none, alreadySubscribed, initialDownload, noFeeds
+	
+	var errorDescription: String? {
+		switch self {
+		case .alreadySubscribed:
+			return NSLocalizedString("Can’t add this feed because you’ve already subscribed to it.", comment: "Feed finder")
+		case .initialDownload:
+			return NSLocalizedString("Can’t add this feed because of a download error.", comment: "Feed finder")
+		case .noFeeds:
+			return NSLocalizedString("Can’t add a feed because no feed was found.", comment: "Feed finder")
+		default:
+			return nil
+		}
+	}
+	
+}
+
+class AddWebFeedModel: ObservableObject {
+	
+	@Published var shouldDismiss: Bool = false
+	@Published var providedURL: String = ""
+	@Published var providedName: String = ""
+	@Published var selectedFolderIndex: Int = 0
+	@Published var addFeedError: AddWebFeedError? {
+		didSet {
+			addFeedError != AddWebFeedError.none ? (showError = true) : (showError = false)
+		}
+	}
+	@Published var showError: Bool = false
+	@Published var containers: [Container] = []
+	@Published var showProgressIndicator: Bool = false
+	
+	init() {
+		for account in AccountManager.shared.sortedActiveAccounts {
+			containers.append(account)
+			if let sortedFolders = account.sortedFolders {
+				containers.append(contentsOf: sortedFolders)
+			}
+		}
+	}
+
+	func pasteUrlFromPasteboard() {
+		guard let stringFromPasteboard = urlStringFromPasteboard, stringFromPasteboard.isValidURL else {
+			return
+		}
+		providedURL = stringFromPasteboard
+	}
+	
+	#if os(macOS)
+	var urlStringFromPasteboard: String? {
+		if let urlString = NSPasteboard.urlString(from: NSPasteboard.general) {
+			return urlString.normalizedURL
+		}
+		return nil
+	}
+	#else
+	var urlStringFromPasteboard: String? {
+		if let urlString = UIPasteboard.general.url?.absoluteString {
+			return urlString.normalizedURL
+		}
+		return nil
+	}
+	#endif
+	
+	struct AccountAndFolderSpecifier {
+		let account: Account
+		let folder: Folder?
+	}
+
+	func accountAndFolderFromContainer(_ container: Container) -> AccountAndFolderSpecifier? {
+		if let account = container as? Account {
+			return AccountAndFolderSpecifier(account: account, folder: nil)
+		}
+		if let folder = container as? Folder, let account = folder.account {
+			return AccountAndFolderSpecifier(account: account, folder: folder)
+		}
+		return nil
+	}
+	
+	func addWebFeed() {
+		if let account = accountAndFolderFromContainer(containers[selectedFolderIndex])?.account {
+			
+			showProgressIndicator = true
+			
+			let container = containers[selectedFolderIndex]
+			
+			if account.hasWebFeed(withURL: providedURL) {
+				addFeedError = .alreadySubscribed
+				showProgressIndicator = false
+				return
+			}
+			
+			account.createWebFeed(url: providedURL, name: providedName, container: container, completion: { [weak self] result in
+				self?.showProgressIndicator = false
+				switch result {
+				case .success(let feed):
+					NotificationCenter.default.post(name: .UserDidAddFeed, object: self, userInfo: [UserInfoKey.webFeed: feed])
+					self?.shouldDismiss = true
+				case .failure(let error):
+					switch error {
+					case AccountError.createErrorAlreadySubscribed:
+						self?.addFeedError = .alreadySubscribed
+						return
+					case AccountError.createErrorNotFound:
+						self?.addFeedError = .noFeeds
+						return
+					default:
+						print("Error")
+					}
+				}
+			})
+		}
+	}
+	
+	
+	
+}