add device frame (wip)

screenshots/devices_config.dart

@@ -1,26 +1,37 @@
 enum ScreenshotDevicePlatform { android, ios }
 
+final screenshotDevicesIos = [
+  ScreenshotDevice.fromDisplayName(
+    displayName: 'iPhone 8 Plus',
+    platform: ScreenshotDevicePlatform.ios,
+  ),
+  ScreenshotDevice.fromDisplayName(
+    displayName: 'iPhone 13 Pro',
+    platform: ScreenshotDevicePlatform.ios,
+    screenshotFrameOffset: (dx: 72, dy: 60),
+  ),
+];
+
 class ScreenshotDevice {
   final String name;
   final ScreenshotDevicePlatform platform;
+  final ({int dx, int dy}) screenshotFrameOffset;
 
   const ScreenshotDevice({
     required this.name,
     required this.platform,
+    this.screenshotFrameOffset = (dx: 0, dy: 0),
   });
 
   ScreenshotDevice.fromDisplayName({
     required String displayName,
     required this.platform,
+    this.screenshotFrameOffset = (dx: 0, dy: 0),
   }) : name = displayName.replaceAll(' ', '_').toLowerCase();
 
   String get systemOverlayPathLight =>
       'screenshots/assets/system_overlays/${platform.name}/${name}_system_overlay_light.png';
   String get systemOverlayPathDark =>
       'screenshots/assets/system_overlays/${platform.name}/${name}_system_overlay_dark.png';
+  String get deviceFramePath => 'screenshots/assets/frames/${platform.name}/${name}_frame.png';
 }
-
-final screenshotDevicesIos = [
-  ScreenshotDevice.fromDisplayName(displayName: 'iPhone 8 Plus', platform: ScreenshotDevicePlatform.ios),
-  ScreenshotDevice.fromDisplayName(displayName: 'iPhone 13 Pro', platform: ScreenshotDevicePlatform.ios),
-];

screenshots/generate_screenshots.dart

@@ -19,17 +19,20 @@ import 'package:shared_preferences/shared_preferences.dart';
 
 import '../integration_test/mocks/paid_features_mock.dart';
 import '../integration_test/utils/widget_tester_actions.dart';
+import 'screenshot_args.dart';
 
 //https://stackoverflow.com/a/67186625/13167574
 
 const _mockFilm = Film('Ilford HP5+', 400);
+final Color _lightThemeColor = primaryColorsList[5];
+final Color _darkThemeColor = primaryColorsList[3];
+final ThemeData _themeLight = themeFrom(_lightThemeColor, Brightness.light);
+final ThemeData _themeDark = themeFrom(_darkThemeColor, Brightness.dark);
 
 /// Just a screenshot generator. No expectations here.
 void main() {
   final binding = IntegrationTestWidgetsFlutterBinding();
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
-  final Color lightThemeColor = primaryColorsList[5];
-  final Color darkThemeColor = primaryColorsList[3];
 
   void mockSharedPrefs(ThemeType theme, Color color) {
     // ignore: invalid_use_of_visible_for_testing_member
@@ -70,7 +73,7 @@ void main() {
 
   /// Generates several screenshots with the light theme
   testWidgets('Generate light theme screenshots', (tester) async {
-    mockSharedPrefs(ThemeType.light, lightThemeColor);
+    mockSharedPrefs(ThemeType.light, _lightThemeColor);
     await tester.pumpApplication(
       availableFilms: [_mockFilm],
       filmsInUse: [_mockFilm],
@@ -114,7 +117,7 @@ void main() {
   testWidgets(
     'Generate dark theme screenshots',
     (tester) async {
-      mockSharedPrefs(ThemeType.dark, darkThemeColor);
+      mockSharedPrefs(ThemeType.dark, _darkThemeColor);
       await tester.pumpApplication(
         availableFilms: [_mockFilm],
         filmsInUse: [_mockFilm],
@@ -138,8 +141,21 @@ final String _platformFolder = Platform.isAndroid ? 'android' : 'ios';
 
 extension on WidgetTester {
   Future<void> takeScreenshot(IntegrationTestWidgetsFlutterBinding binding, String name) async {
+    final bool isDark = name.contains('dark-');
+    final Color backgroundColor = (isDark ? _themeDark : _themeLight).colorScheme.surface;
     await binding.takeScreenshot(
-      "$_platformFolder/${const String.fromEnvironment('deviceName').replaceAll(' ', '_').toLowerCase()}/$name",
+      ScreenshotArgs(
+        name: name,
+        deviceName: const String.fromEnvironment('deviceName').replaceAll(' ', '_').toLowerCase(),
+        platformFolder: _platformFolder,
+        backgroundColor: (
+          r: backgroundColor.red,
+          g: backgroundColor.green,
+          b: backgroundColor.blue,
+          a: backgroundColor.alpha,
+        ),
+        isDark: isDark,
+      ).toString(),
     );
     await pumpAndSettle();
   }

screenshots/screenshot_args.dart

@@ -0,0 +1,55 @@
+import 'dart:convert';
+
+class ScreenshotArgs {
+  final String name;
+  final String deviceName;
+  final String platformFolder;
+  final ({int r, int g, int b, int a}) backgroundColor;
+  final bool isDark;
+
+  const ScreenshotArgs({
+    required this.name,
+    required this.deviceName,
+    required this.platformFolder,
+    required this.backgroundColor,
+    required this.isDark,
+  });
+
+  String toPath() => 'screenshots/generated/$platformFolder/$deviceName/$name.png';
+
+  @override
+  String toString() => jsonEncode(_toJson());
+
+  factory ScreenshotArgs.fromString(String data) => ScreenshotArgs._fromJson(jsonDecode(data) as Map<String, dynamic>);
+
+  factory ScreenshotArgs._fromJson(Map<String, dynamic> data) {
+    final colorChannels = data['backgroundColor'] as List;
+    return ScreenshotArgs(
+      name: data['name'] as String,
+      deviceName: data['deviceName'] as String,
+      platformFolder: data['platformFolder'] as String,
+      backgroundColor: (
+        r: colorChannels[0] as int,
+        g: colorChannels[1] as int,
+        b: colorChannels[2] as int,
+        a: colorChannels[3] as int,
+      ),
+      isDark: data['isDark'] as bool,
+    );
+  }
+
+  Map<String, dynamic> _toJson() {
+    return {
+      "name": name,
+      "deviceName": deviceName,
+      "platformFolder": platformFolder,
+      "backgroundColor": [
+        backgroundColor.r,
+        backgroundColor.g,
+        backgroundColor.b,
+        backgroundColor.a,
+      ],
+      "isDark": isDark,
+    };
+  }
+}

test_driver/screenshot_driver.dart

@@ -1,15 +1,83 @@
 import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:image/image.dart';
 import 'package:integration_test/integration_test_driver_extended.dart';
 
+import '../screenshots/devices_config.dart';
+import '../screenshots/screenshot_args.dart';
 import 'utils/grant_camera_permission.dart';
 
 Future<void> main() async {
   await grantCameraPermission();
   await integrationDriver(
-    onScreenshot: (name, bytes, [args]) async {
-      final File image = await File('screenshots/generated/$name.png').create(recursive: true);
-      image.writeAsBytesSync(bytes);
+    onScreenshot: (name, bytes, [_]) async {
+      final screenshotArgs = ScreenshotArgs.fromString(name);
+      final backgroundColor = ColorRgba8(
+        screenshotArgs.backgroundColor.r,
+        screenshotArgs.backgroundColor.g,
+        screenshotArgs.backgroundColor.b,
+        screenshotArgs.backgroundColor.a,
+      );
+      final platform =
+          screenshotArgs.platformFolder == 'ios' ? ScreenshotDevicePlatform.ios : ScreenshotDevicePlatform.ios;
+      final deviceName = screenshotArgs.deviceName;
+      final file = await File(screenshotArgs.toPath()).create(recursive: true);
+
+      // switch (platform) {
+      //   case ScreenshotDevicePlatform.ios:
+      //     final device = screenshotDevicesIos.firstWhere(
+      //       (device) => device.name == deviceName,
+      //       orElse: () => ScreenshotDevice(name: '', platform: platform),
+      //     );
+      //     Image screenshot = decodePng(Uint8List.fromList(bytes))!;
+      //     screenshot = screenshot.addSystemOverlay(device, isDark: screenshotArgs.isDark);
+      //     screenshot = screenshot.addDeviceFrame(device, backgroundColor);
+      //     file.writeAsBytesSync(encodePng(screenshot));
+      //   case ScreenshotDevicePlatform.android:
+      //     file.writeAsBytesSync(bytes);
+      // }
+
+      file.writeAsBytesSync(bytes);
       return true;
     },
   );
 }
+
+extension ScreenshotImage on Image {
+  Image addSystemOverlay(ScreenshotDevice device, {required bool isDark}) {
+    final path = isDark ? device.systemOverlayPathDark : device.systemOverlayPathLight;
+    final statusBar = copyResize(
+      decodePng(File(path).readAsBytesSync())!,
+      width: width,
+    );
+    return compositeImage(this, statusBar);
+  }
+
+  Image addDeviceFrame(ScreenshotDevice device, Color backgroundColor) {
+    final screenshotRounded = copyCrop(
+      this,
+      x: 0,
+      y: 0,
+      width: width,
+      height: height,
+    );
+
+    final frame = decodePng(File(device.deviceFramePath).readAsBytesSync())!;
+    final expandedScreenshot = copyExpandCanvas(
+      copyExpandCanvas(
+        screenshotRounded,
+        newWidth: screenshotRounded.width + device.screenshotFrameOffset.dx,
+        newHeight: screenshotRounded.height + device.screenshotFrameOffset.dy,
+        position: ExpandCanvasPosition.bottomRight,
+        backgroundColor: backgroundColor,
+      ),
+      newWidth: frame.width,
+      newHeight: frame.height,
+      position: ExpandCanvasPosition.topLeft,
+      backgroundColor: backgroundColor,
+    );
+
+    return compositeImage(expandedScreenshot, frame);
+  }
+}