Move IosFiles implementation to Kotlin; setup tests for ios target

ios/Application/Frontend/MainScreenController.swift

@@ -109,9 +109,9 @@ class MainScreenController: UITableViewController, MainScreenDataSourceListener
     init(withBackend backend:Backend) {
         self.backend = backend
         self.strings = backend.strings
-        self.dataSource = backend.mainScreenDataSource
+        self.dataSource = backend.mainScreenDataSource!
         self.theme = backend.theme
-        self.preferences = backend.preferences
+        self.preferences = backend.preferences!
         super.init(nibName: nil, bundle: nil)
         self.dataSource.observable.addListener(listener: self)
         self.dataSource.requestData()

ios/Application/Platform/IosCanvas.swift

@@ -42,28 +42,6 @@ class ComponentView : UIView {
 }
 
 class IosCanvas : NSObject, Canvas {
-    func fillArc(centerX: Double, centerY: Double, radius: Double, startAngle: Double, swipeAngle: Double) {
-        let center = CGPoint(x: CGFloat(centerX), y: CGFloat(centerY))
-        let a1 = startAngle / 180 * .pi * (-1)
-        let a2 = a1 - swipeAngle / 180 * .pi
-        self.ctx.beginPath()
-        self.ctx.move(to: center)
-        self.ctx.addArc(center: center,
-                        radius: CGFloat(radius),
-                        startAngle: CGFloat(a1),
-                        endAngle: CGFloat(a2),
-                        clockwise: swipeAngle >= 0)
-        self.ctx.closePath()
-        self.ctx.fillPath()
-    }
-    
-    func fillCircle(centerX: Double, centerY: Double, radius: Double) {
-        self.ctx.fillEllipse(in: CGRect(x: CGFloat(centerX - radius),
-                                        y: CGFloat(centerY - radius),
-                                        width: CGFloat(radius * 2),
-                                        height: CGFloat(radius * 2)))
-    }
-    
     var bounds: CGRect
     var ctx: CGContext
     
@@ -157,4 +135,26 @@ class IosCanvas : NSObject, Canvas {
     func setTextAlign(align: TextAlign) {
         self.textAlign = align
     }
+    
+    func fillArc(centerX: Double, centerY: Double, radius: Double, startAngle: Double, swipeAngle: Double) {
+        let center = CGPoint(x: CGFloat(centerX), y: CGFloat(centerY))
+        let a1 = startAngle / 180 * .pi * (-1)
+        let a2 = a1 - swipeAngle / 180 * .pi
+        self.ctx.beginPath()
+        self.ctx.move(to: center)
+        self.ctx.addArc(center: center,
+                        radius: CGFloat(radius),
+                        startAngle: CGFloat(a1),
+                        endAngle: CGFloat(a2),
+                        clockwise: swipeAngle >= 0)
+        self.ctx.closePath()
+        self.ctx.fillPath()
+    }
+    
+    func fillCircle(centerX: Double, centerY: Double, radius: Double) {
+        self.ctx.fillEllipse(in: CGRect(x: CGFloat(centerX - radius),
+                                        y: CGFloat(centerY - radius),
+                                        width: CGFloat(radius * 2),
+                                        height: CGFloat(radius * 2)))
+    }
 }

ios/Application/Platform/IosFiles.swift

@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2016-2019 Álinson Santos Xavier <isoron@gmail.com>
- *
- * This file is part of Loop Habit Tracker.
- *
- * Loop Habit Tracker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or (at your
- * option) any later version.
- *
- * Loop Habit Tracker 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-import Foundation
-
-class IosResourceFile : NSObject, ResourceFile {
-
-    var path: String
-    var fileManager = FileManager.default
-    
-    init(forPath path: String) {
-        self.path = path
-    }
-    
-    func readLines() -> [String] {
-        do {
-            let contents = try String(contentsOfFile: self.path, encoding: .utf8)
-            return contents.components(separatedBy: CharacterSet.newlines)
-        } catch {
-            return ["ERROR"]
-        }
-    }
-
-    func doCopyTo(dest: UserFile) {
-        try! fileManager.copyItem(atPath: self.path, toPath: (dest as! IosUserFile).path)
-    }
-}
-
-class IosUserFile : NSObject, UserFile {
-    
-    var path: String
-    
-    init(forPath path: String) {
-        self.path = path
-    }
-    
-    func delete() {
-        do {
-            try FileManager.default.removeItem(atPath: path)
-        } catch {
-            
-        }
-    }
-    
-    func exists() -> Bool {
-        return FileManager.default.fileExists(atPath: path)
-    }
-}
-
-class IosFileOpener : NSObject, FileOpener {
-    func openResourceFile(filename: String) -> ResourceFile {
-        let path = "\(Bundle.main.resourcePath!)/\(filename)"
-        return IosResourceFile(forPath: path)
-    }
-    
-    func openUserFile(filename: String) -> UserFile {
-        do {
-            let root = try FileManager.default.url(for: .documentDirectory,
-                                                   in: .userDomainMask,
-                                                   appropriateFor: nil,
-                                                   create: false).path
-            return IosUserFile(forPath: "\(root)/\(filename)")
-        } catch {
-            return IosUserFile(forPath: "invalid")
-        }
-    }
-}