From 7e9db1d21869a0f0f77dc7907b85ccd5dc1bfc59 Mon Sep 17 00:00:00 2001
From: Rizwan Mohamed Ibrahim <rizwankce@users.noreply.github.com>
Date: Fri, 28 Aug 2020 23:01:58 +0530
Subject: [PATCH] Fix import/export subscriptions

Beta 6 has changed the way import and export works. It's changed from
a environment variable to view modifier now.
---
 .../iOS/Settings/FeedsSettingsModel.swift     | 23 +++++++++--
 Multiplatform/iOS/Settings/SettingsView.swift | 40 ++++++++-----------
 2 files changed, 36 insertions(+), 27 deletions(-)

diff --git a/Multiplatform/iOS/Settings/FeedsSettingsModel.swift b/Multiplatform/iOS/Settings/FeedsSettingsModel.swift
index 72f9545ba..70da469d0 100644
--- a/Multiplatform/iOS/Settings/FeedsSettingsModel.swift
+++ b/Multiplatform/iOS/Settings/FeedsSettingsModel.swift
@@ -9,6 +9,7 @@
 import Foundation
 import SwiftUI
 import Account
+import UniformTypeIdentifiers
 
 enum FeedsSettingsError: LocalizedError, Equatable {
 	case none, noActiveAccount, exportFailed(reason: String?), importFailed
@@ -51,6 +52,11 @@ class FeedsSettingsModel: ObservableObject {
 		}
 	}
 	@Published var showError: Bool = false
+	@Published var isImporting: Bool = false
+	@Published var isExporting: Bool = false
+	@Published var selectedAccount: Account? = nil
+
+	let importingContentTypes: [UTType] = [UTType(filenameExtension: "opml"), UTType("public.xml")].compactMap { $0 }
 
 	func checkForActiveAccount() -> Bool {
 		if AccountManager.shared.activeAccounts.count == 0 {
@@ -60,7 +66,18 @@ class FeedsSettingsModel: ObservableObject {
 		return true
 	}
 
-	func generateExportURL(for account: Account) -> URL? {
+	func importOPML(account: Account?) {
+		selectedAccount = account
+		isImporting = true
+	}
+
+	func exportOPML(account: Account?) {
+		selectedAccount = account
+		isExporting = true
+	}
+
+	func generateExportURL() -> URL? {
+		guard let account = selectedAccount else { return nil }
 		let accountName = account.nameForDisplay.replacingOccurrences(of: " ", with: "").trimmingCharacters(in: .whitespaces)
 		let filename = "Subscriptions-\(accountName).opml"
 		let tempFile = FileManager.default.temporaryDirectory.appendingPathComponent(filename)
@@ -75,9 +92,9 @@ class FeedsSettingsModel: ObservableObject {
 		return tempFile
 	}
 
-	func processImportedFiles(_ urls: [URL],_ account: Account?) {
+	func processImportedFiles(_ urls: [URL]) {
 		urls.forEach{
-			account?.importOPML($0, completion: { [weak self] result in
+			selectedAccount?.importOPML($0, completion: { [weak self] result in
 				switch result {
 				case .success:
 					break
diff --git a/Multiplatform/iOS/Settings/SettingsView.swift b/Multiplatform/iOS/Settings/SettingsView.swift
index 927842b51..33c94ae25 100644
--- a/Multiplatform/iOS/Settings/SettingsView.swift
+++ b/Multiplatform/iOS/Settings/SettingsView.swift
@@ -8,13 +8,10 @@
 
 import SwiftUI
 import Account
-import UniformTypeIdentifiers
 
 struct SettingsView: View {
 	
 	@Environment(\.presentationMode) var presentationMode
-	@Environment(\.exportFiles) var exportAction
-	@Environment(\.importFiles) var importAction
 
 	@StateObject private var viewModel = SettingsModel()
 	@StateObject private var feedsSettingsModel = FeedsSettingsModel()
@@ -41,6 +38,18 @@ struct SettingsView: View {
 				}
 			)
 		}
+		.fileImporter(
+			isPresented: $feedsSettingsModel.isImporting,
+			allowedContentTypes: feedsSettingsModel.importingContentTypes,
+			allowsMultipleSelection: true,
+			onCompletion: { result in
+				if let urls = try? result.get() {
+					feedsSettingsModel.processImportedFiles(urls)
+				}
+			}
+		)
+		.fileMover(isPresented: $feedsSettingsModel.isExporting,
+				   file: feedsSettingsModel.generateExportURL()) { _ in }
 		.sheet(isPresented: $viewModel.presentSheet, content: {
 			SafariView(url: viewModel.selectedWebsite.url!)
 		})
@@ -81,7 +90,7 @@ struct SettingsView: View {
 			else {
 				Button(action:{
 					if feedsSettingsModel.checkForActiveAccount() {
-						importOPML(account: viewModel.activeAccounts.first)
+						feedsSettingsModel.importOPML(account: viewModel.activeAccounts.first)
 					}
 				}) {
 					Text("Import Subscriptions")
@@ -94,7 +103,7 @@ struct SettingsView: View {
 			}
 			else {
 				Button(action:{
-					exportOPML(account: viewModel.accounts.first)
+					feedsSettingsModel.exportOPML(account: viewModel.accounts.first)
 				}) {
 					Text("Export Subscriptions")
 						.foregroundColor(.primary)
@@ -118,7 +127,7 @@ struct SettingsView: View {
 			Section(header: Text("Choose an account to receive the imported feeds and folders"), content: {
 				ForEach(0..<viewModel.activeAccounts.count, id: \.hashValue , content: { i in
 					Button {
-						importOPML(account: viewModel.activeAccounts[i])
+						feedsSettingsModel.importOPML(account: viewModel.activeAccounts[i])
 					} label: {
 						Text(viewModel.activeAccounts[i].nameForDisplay)
 					}
@@ -134,7 +143,7 @@ struct SettingsView: View {
 			Section(header: Text("Choose an account with the subscriptions to export"), content: {
 				ForEach(0..<viewModel.accounts.count, id: \.hashValue , content: { i in
 					Button {
-						exportOPML(account: viewModel.accounts[i])
+						feedsSettingsModel.exportOPML(account: viewModel.accounts[i])
 					} label: {
 						Text(viewModel.accounts[i].nameForDisplay)
 					}
@@ -226,23 +235,6 @@ struct SettingsView: View {
 		return "NetNewsWire \(version) (Build \(build))"
 	}
 
-	private func exportOPML(account: Account?) {
-		guard let account = account,
-			  let url = feedsSettingsModel.generateExportURL(for: account) else {
-			return
-		}
-
-		exportAction(moving: url) { _ in }
-	}
-
-	private func importOPML(account: Account?) {
-		let types = [UTType(filenameExtension: "opml"), UTType("public.xml")].compactMap { $0 }
-		importAction(multipleOfType: types) { (result: Result<[URL], Error>?) in
-			if let urls = try? result?.get() {
-				feedsSettingsModel.processImportedFiles(urls, account)
-			}
-		}
-	}
 }
 
 struct SettingsView_Previews: PreviewProvider {