3 files changed, 138 insertions, 0 deletions
diff --git a/iosApp/iosApp/Shared/ShareViewController.swift b/iosApp/iosApp/Shared/ShareViewController.swift
new file mode 100644
index 0000000..ed26ab8
--- /dev/null
+++ b/iosApp/iosApp/Shared/ShareViewController.swift
@@ -0,0 +1,26 @@
+//
+//  ShareViewController.swift
+//  iosApp
+//
+//  Created by Iván on 31/03/22.
+//  Copyright © 2022 orgName. All rights reserved.
+//
+
+import Foundation
+import SwiftUI
+import UIKit
+
+struct ShareView: UIViewControllerRepresentable {
+
+    @Binding var activityItems: [Any]
+    var excludedActivityTypes: [UIActivity.ActivityType]? = nil
+    
+    func makeUIViewController(context: UIViewControllerRepresentableContext<ShareView>) -> UIActivityViewController {
+        let controller = UIActivityViewController(activityItems: activityItems,
+                                                  applicationActivities: nil)
+        controller.excludedActivityTypes = excludedActivityTypes
+        return controller
+    }
+
+    func updateUIViewController(_ uiViewController: UIActivityViewController, context: UIViewControllerRepresentableContext<ShareView>) {}
+}
diff --git a/iosApp/iosApp/Shared/Utils.swift b/iosApp/iosApp/Shared/Utils.swift
index 61a8f90..4e04d1b 100644
--- a/iosApp/iosApp/Shared/Utils.swift
+++ b/iosApp/iosApp/Shared/Utils.swift
@@ -20,6 +20,25 @@ import CryptoKit
 import WhirlyGlobe
 import shared
 
+// Source: https://stackoverflow.com/a/55092044
+extension Data {
+    func dataToFile(fileName: String) -> NSURL? {
+        let fileManager = FileManager.default
+        let data = self
+        let filePath = Utils.getReportTmpDirectory().appendingPathComponent(fileName)
+        do {
+            if(fileManager.fileExists(atPath: filePath)) {
+                try fileManager.removeItem(atPath: filePath)
+            }
+            fileManager.createFile(atPath: filePath, contents: data, attributes: nil)
+            return NSURL(fileURLWithPath: filePath)
+        } catch {
+            print("Error writing the file: \(error.localizedDescription)")
+        }
+        return nil
+    }
+}
+
 class Utils {
     static func MD5(string: String) -> String {
         let digest = Insecure.MD5.hash(data: string.data(using: .utf8) ?? Data())
@@ -45,4 +64,37 @@ class Utils {
             .replacingOccurrences(of: "{x}", with: "\(latitude)")
             .replacingOccurrences(of: "{y}", with: "\(longitude)"))
     }
+    
+    static func createReportTmpDirectory() {
+        let fileManager = FileManager.default
+        let tmpDir = getReportTmpDirectory() as String
+        do {
+            if (!fileManager.fileExists(atPath: tmpDir)) {
+                try fileManager.createDirectory(atPath: tmpDir,
+                                                withIntermediateDirectories: false,
+                                                attributes: nil)
+            }
+        } catch {
+            print("Could not create temp folder: \(error)")
+        }
+    }
+    
+    static func getReportTmpDirectory() -> NSString {
+        let tmpDir = NSTemporaryDirectory()
+        return (tmpDir as NSString).appendingPathComponent("reports") as NSString
+    }
+    
+    // Source: https://stackoverflow.com/a/33937110
+    static func clearReportTmpDirectory() {
+        let fileManager = FileManager.default
+        let reportTmpDir = getReportTmpDirectory()
+        do {
+            let filePaths = try fileManager.contentsOfDirectory(atPath: reportTmpDir as String)
+            for filePath in filePaths {
+                try fileManager.removeItem(atPath: reportTmpDir.appendingPathComponent(filePath))
+            }
+        } catch {
+            print("Could not clear temp folder: \(error)")
+        }
+    }
 }
diff --git a/iosApp/iosApp/Shared/XlsxFile.swift b/iosApp/iosApp/Shared/XlsxFile.swift
new file mode 100644
index 0000000..8015422
--- /dev/null
+++ b/iosApp/iosApp/Shared/XlsxFile.swift
@@ -0,0 +1,60 @@
+/**
+ * TrackerMap
+ * Copyright (C) 2021-2022  Iván Ávalos <avalos@disroot.org>, Henoch Ojeda <imhenoch@protonmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+import shared
+import Foundation
+import UniformTypeIdentifiers
+import SwiftUI
+
+// Source: https://www.hackingwithswift.com/quick-start/swiftui/how-to-export-files-using-fileexporter
+
+extension UTType {
+    static var doc: Self { .init(filenameExtension: "doc")! }
+    static var docx: Self { .init(filenameExtension: "docx")! }
+
+    static var xls: Self { .init(filenameExtension: "xls")! }
+    static var xlsx: Self { .init(filenameExtension: "xlsx")! }
+
+    static var ppt: Self { .init(filenameExtension: "ppt")! }
+    static var pptx: Self { .init(filenameExtension: "pptx")! }
+}
+
+struct XlsxFile: FileDocument {
+    static var readableContentTypes = [UTType.xlsx]
+    
+    var data: Data
+    
+    init() {
+        data = Data()
+    }
+    
+    init(bytes: KotlinByteArray) {
+        data = bytes.toData()
+    }
+    
+    init(configuration: ReadConfiguration) throws {
+        if let data = configuration.file.regularFileContents {
+            self.data = data
+            return
+        }
+        self.data = Data()
+    }
+    
+    func fileWrapper(configuration: WriteConfiguration) throws -> FileWrapper {
+        return FileWrapper(regularFileWithContents: data)
+    }
+}