initial json parsing

MTMR.xcodeproj/project.pbxproj

@@ -9,6 +9,9 @@
 /* Begin PBXBuildFile section */
 		36C2ECD7207B6DAE003CDA33 /* TimeTouchBarItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36C2ECD6207B6DAE003CDA33 /* TimeTouchBarItem.swift */; };
 		36C2ECD9207B74B4003CDA33 /* AppleScriptTouchBarItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36C2ECD8207B74B4003CDA33 /* AppleScriptTouchBarItem.swift */; };
+		36C2ECDB207C3FE7003CDA33 /* ItemsParsing.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36C2ECDA207C3FE7003CDA33 /* ItemsParsing.swift */; };
+		36C2ECDD207C723B003CDA33 /* ParseConfigTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36C2ECDC207C723B003CDA33 /* ParseConfigTests.swift */; };
+		36C2ECDE207C82DE003CDA33 /* ItemsParsing.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36C2ECDA207C3FE7003CDA33 /* ItemsParsing.swift */; };
 		B059D622205E03F5006E6B86 /* TouchBarController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B059D621205E03F5006E6B86 /* TouchBarController.swift */; };
 		B059D624205E04F3006E6B86 /* TouchBarItems.swift in Sources */ = {isa = PBXBuildFile; fileRef = B059D623205E04F3006E6B86 /* TouchBarItems.swift */; };
 		B059D62D205F11E8006E6B86 /* DFRFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B059D62C205F11E8006E6B86 /* DFRFoundation.framework */; };
@@ -16,7 +19,6 @@
 		B082B255205C7D8000BC04DC /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = B082B254205C7D8000BC04DC /* ViewController.swift */; };
 		B082B257205C7D8000BC04DC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = B082B256205C7D8000BC04DC /* Assets.xcassets */; };
 		B082B25A205C7D8000BC04DC /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = B082B258205C7D8000BC04DC /* Main.storyboard */; };
-		B082B266205C7D8000BC04DC /* MTMRTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B082B265205C7D8000BC04DC /* MTMRTests.swift */; };
 		B082B271205C7D8000BC04DC /* MTMRUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B082B270205C7D8000BC04DC /* MTMRUITests.swift */; };
 		B09EB1E4207C082000D5C1E0 /* HapticFeedback.swift in Sources */ = {isa = PBXBuildFile; fileRef = B09EB1E3207C082000D5C1E0 /* HapticFeedback.swift */; };
 		B09EB1E6207C0F8E00D5C1E0 /* MultitouchSupport.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B09EB1E5207C0F8E00D5C1E0 /* MultitouchSupport.framework */; };
@@ -48,6 +50,8 @@
 		36C2ECD2207B3B1D003CDA33 /* README.md */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		36C2ECD6207B6DAE003CDA33 /* TimeTouchBarItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimeTouchBarItem.swift; sourceTree = "<group>"; };
 		36C2ECD8207B74B4003CDA33 /* AppleScriptTouchBarItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppleScriptTouchBarItem.swift; sourceTree = "<group>"; };
+		36C2ECDA207C3FE7003CDA33 /* ItemsParsing.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ItemsParsing.swift; sourceTree = "<group>"; };
+		36C2ECDC207C723B003CDA33 /* ParseConfigTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ParseConfigTests.swift; sourceTree = "<group>"; };
 		B059D621205E03F5006E6B86 /* TouchBarController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TouchBarController.swift; sourceTree = "<group>"; };
 		B059D623205E04F3006E6B86 /* TouchBarItems.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TouchBarItems.swift; sourceTree = "<group>"; };
 		B059D629205E13E5006E6B86 /* TouchBarPrivateApi.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = TouchBarPrivateApi.h; sourceTree = "<group>"; };
@@ -61,7 +65,6 @@
 		B082B25B205C7D8000BC04DC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B082B25C205C7D8000BC04DC /* MTMR.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = MTMR.entitlements; sourceTree = "<group>"; };
 		B082B261205C7D8000BC04DC /* MTMRTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = MTMRTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
-		B082B265205C7D8000BC04DC /* MTMRTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MTMRTests.swift; sourceTree = "<group>"; };
 		B082B267205C7D8000BC04DC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B082B26C205C7D8000BC04DC /* MTMRUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = MTMRUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		B082B270205C7D8000BC04DC /* MTMRUITests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MTMRUITests.swift; sourceTree = "<group>"; };
@@ -156,6 +159,7 @@
 				B0F8771C207AD35400D6E430 /* battery.scpt */,
 				B0A8BF9D207B84160086F74D /* weather.scpt */,
 				B09EB1E3207C082000D5C1E0 /* HapticFeedback.swift */,
+				36C2ECDA207C3FE7003CDA33 /* ItemsParsing.swift */,
 			);
 			path = MTMR;
 			sourceTree = "<group>";
@@ -163,7 +167,7 @@
 		B082B264205C7D8000BC04DC /* MTMRTests */ = {
 			isa = PBXGroup;
 			children = (
-				B082B265205C7D8000BC04DC /* MTMRTests.swift */,
+				36C2ECDC207C723B003CDA33 /* ParseConfigTests.swift */,
 				B082B267205C7D8000BC04DC /* Info.plist */,
 			);
 			path = MTMRTests;
@@ -326,6 +330,7 @@
 				B082B253205C7D8000BC04DC /* AppDelegate.swift in Sources */,
 				B059D624205E04F3006E6B86 /* TouchBarItems.swift in Sources */,
 				B09EB1E4207C082000D5C1E0 /* HapticFeedback.swift in Sources */,
+				36C2ECDB207C3FE7003CDA33 /* ItemsParsing.swift in Sources */,
 				B0A7E9AA205D6AA400EEF070 /* KeyPress.swift in Sources */,
 				36C2ECD7207B6DAE003CDA33 /* TimeTouchBarItem.swift in Sources */,
 			);
@@ -335,7 +340,8 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				B082B266205C7D8000BC04DC /* MTMRTests.swift in Sources */,
+				36C2ECDD207C723B003CDA33 /* ParseConfigTests.swift in Sources */,
+				36C2ECDE207C82DE003CDA33 /* ItemsParsing.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

MTMR/ItemsParsing.swift

@@ -0,0 +1,137 @@
+import Foundation
+
+struct BarItemDefinition: Decodable {
+    let type: ItemType
+    let action: ActionType
+ 
+    private enum CodingKeys: String, CodingKey {
+        case type
+    }
+    
+    init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        let type = try container.decode(String.self, forKey: .type)
+        let parametersDecoder = SupportedTypesHolder.sharedInstance.lookup(by: type)
+        if let result = try? parametersDecoder(decoder),
+            case let (itemType, action) = result {
+            self.type = itemType
+            self.action = action
+        } else {
+            self.type = .staticButton(title: "unknown")
+            self.action = .none
+        }
+    }
+    
+}
+
+class SupportedTypesHolder {
+    typealias ParametersDecoder = (Decoder) throws ->(item: ItemType, action: ActionType)
+    private var supportedTypes: [String: ParametersDecoder] = [
+        "brightnessUp": { _ in return (item: .staticButton(title: "🔆"), action: .keyPress(keycode: 113))  },
+    ]
+    
+    static let sharedInstance = SupportedTypesHolder()
+    
+    func lookup(by type: String) -> ParametersDecoder {
+        if let extraType = supportedTypes[type] {
+            return extraType
+        } else {
+            return { decoder in
+                return (item: try ItemType(from: decoder), action: try ActionType(from: decoder))
+            }
+        }
+    }
+}
+
+enum ItemType: Decodable {
+    case staticButton(title: String)
+    case appleScriptTitledButton(source: String)
+
+    private enum CodingKeys: String, CodingKey {
+        case type
+        case title
+        case titleAppleScript
+    }
+    
+    private enum ItemTypeRaw: String, Decodable {
+        case staticButton
+        case appleScriptTitledButton
+    }
+
+    init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        let type = try container.decode(ItemTypeRaw.self, forKey: .type)
+        switch type {
+        case .appleScriptTitledButton:
+            let source = try container.decode(String.self, forKey: .titleAppleScript)
+            self = .appleScriptTitledButton(source: source)
+        case .staticButton:
+            let title = try container.decode(String.self, forKey: .title)
+            self = .staticButton(title: title)
+        }
+    }
+}
+
+enum ActionType: Decodable {
+    case none
+    case hidKey(keycode: Int)
+    case keyPress(keycode: Int)
+    case appleSctipt(source: String)
+    
+    private enum CodingKeys: String, CodingKey {
+        case action
+        case keycode
+        case actionAppleScript
+    }
+    
+    private enum ActionTypeRaw: String, Decodable {
+        case hidKey
+        case keyPress
+        case appleScript
+    }
+    
+    init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        let type = try container.decodeIfPresent(ActionTypeRaw.self, forKey: .action)
+        switch type {
+        case .some(.hidKey):
+            let keycode = try container.decode(Int.self, forKey: .keycode)
+            self = .hidKey(keycode: keycode)
+        case .some(.keyPress):
+            let keycode = try container.decode(Int.self, forKey: .keycode)
+            self = .keyPress(keycode: keycode)
+        case .some(.appleScript):
+            let source = try container.decode(String.self, forKey: .actionAppleScript)
+            self = .appleSctipt(source: source)
+        case .none:
+            self = .none
+        }
+    }
+}
+
+extension ItemType: Equatable {}
+func ==(lhs: ItemType, rhs: ItemType) -> Bool {
+    switch (lhs, rhs) {
+    case let (.staticButton(a),   .staticButton(b)),
+         let (.appleScriptTitledButton(a), .appleScriptTitledButton(b)):
+        return a == b
+    default:
+        return false
+    }
+}
+
+extension ActionType: Equatable {}
+func ==(lhs: ActionType, rhs: ActionType) -> Bool {
+    switch (lhs, rhs) {
+    case (.none, .none):
+        return true
+    case let (.hidKey(a), .hidKey(b)),
+         let (.keyPress(a), .keyPress(b)):
+        return a == b
+    case let (.appleSctipt(a), .appleSctipt(b)):
+        return a == b
+    default:
+        return false
+    }
+}
+

MTMRTests/MTMRTests.swift

@@ -1,36 +0,0 @@
-//
-//  MTMRTests.swift
-//  MTMRTests
-//
-//  Created by Anton Palgunov on 16/03/2018.
-//  Copyright © 2018 Anton Palgunov. All rights reserved.
-//
-
-import XCTest
-@testable import MTMR
-
-class MTMRTests: XCTestCase {
-    
-    override func setUp() {
-        super.setUp()
-        // Put setup code here. This method is called before the invocation of each test method in the class.
-    }
-    
-    override func tearDown() {
-        // Put teardown code here. This method is called after the invocation of each test method in the class.
-        super.tearDown()
-    }
-    
-    func testExample() {
-        // This is an example of a functional test case.
-        // Use XCTAssert and related functions to verify your tests produce the correct results.
-    }
-    
-    func testPerformanceExample() {
-        // This is an example of a performance test case.
-        self.measure {
-            // Put the code you want to measure the time of here.
-        }
-    }
-    
-}

MTMRTests/ParseConfigTests.swift

@@ -0,0 +1,33 @@
+import XCTest
+@testable import MTMR
+
+class ParseConfig: XCTestCase {
+    
+    func testButtonNoAction() {
+        let buttonNoActionFixture = """
+            [  { "type": "staticButton",  "title": "Pew" } ]
+        """.data(using: .utf8)!
+        let result = try? JSONDecoder().decode([BarItemDefinition].self, from: buttonNoActionFixture)
+        XCTAssertEqual(result?.first?.type, .staticButton(title: "Pew"))
+        XCTAssertEqual(result?.first?.action, .some(.none))
+    }
+
+    func testButtonKeyCodeAction() {
+        let buttonKeycodeFixture = """
+            [  { "type": "staticButton",  "title": "Pew", "action": "hidKey", "keycode": 123} ]
+        """.data(using: .utf8)!
+        let result = try? JSONDecoder().decode([BarItemDefinition].self, from: buttonKeycodeFixture)
+        XCTAssertEqual(result?.first?.type, .staticButton(title: "Pew"))
+        XCTAssertEqual(result?.first?.action, .hidKey(keycode: 123))
+    }
+    
+    func testPredefinedItem() {
+        let buttonKeycodeFixture = """
+            [  { "type": "brightnessUp" } ]
+        """.data(using: .utf8)!
+        let result = try? JSONDecoder().decode([BarItemDefinition].self, from: buttonKeycodeFixture)
+        XCTAssertEqual(result?.first?.type, .staticButton(title: "🔆"))
+        XCTAssertEqual(result?.first?.action, .keyPress(keycode: 113))
+    }
+    
+}