From 28127cf4870d8967377966018524d32abbd075f0 Mon Sep 17 00:00:00 2001
From: dab246 <tdvu@linagora.com>
Date: Thu, 28 Jul 2022 14:32:25 +0700
Subject: [PATCH] TF-761 Add CompressFileUtils to handle compress and reduce
 image

---
 core/lib/core.dart                           |  1 +
 core/lib/data/utils/compress_file_utils.dart | 37 ++++++++++++++++++++
 core/pubspec.yaml                            |  2 ++
 3 files changed, 40 insertions(+)
 create mode 100644 core/lib/data/utils/compress_file_utils.dart

diff --git a/core/lib/core.dart b/core/lib/core.dart
index 1adf41bae..14294087b 100644
--- a/core/lib/core.dart
+++ b/core/lib/core.dart
@@ -35,6 +35,7 @@ export 'utils/fps_manager.dart';
 export 'utils/build_utils.dart';
 export 'utils/wrapper.dart';
 export 'utils/string_convert.dart';
+export 'data/utils/compress_file_utils.dart';
 
 // Views
 export 'presentation/views/text/slogan_builder.dart';
diff --git a/core/lib/data/utils/compress_file_utils.dart b/core/lib/data/utils/compress_file_utils.dart
new file mode 100644
index 000000000..6f43766cb
--- /dev/null
+++ b/core/lib/data/utils/compress_file_utils.dart
@@ -0,0 +1,37 @@
+
+import 'dart:typed_data';
+
+import 'package:core/utils/app_logger.dart';
+import 'package:flutter_image_compress/flutter_image_compress.dart';
+
+class CompressFileUtils {
+
+  /// Maximum image size displayed
+  static const int MAXIMUM_IMAGE_SIZE_KB = 300;
+  /// Quality image 0 - 100
+  static const int QUALITY_DEFAULT = 50;
+  /// Max image width
+  static const int MAX_IMAGE_WIDTH = 1000;
+
+  bool _exceedMaximumImageSize(Uint8List bytesData) {
+    final maximumSizeBytes = MAXIMUM_IMAGE_SIZE_KB * 1024;
+    final sizeBytesData = bytesData.length;
+    log('CompressFileUtils::exceedMaximumImageSize(): maximumSizeBytes: $maximumSizeBytes');
+    log('CompressFileUtils::exceedMaximumImageSize(): sizeBytesData: $sizeBytesData');
+    return sizeBytesData > maximumSizeBytes;
+  }
+
+  Future<Uint8List> compressBytesDataImage(Uint8List bytesData, {int? maxWidth}) async {
+    if (_exceedMaximumImageSize(bytesData)) {
+      log('CompressFileUtils::_compressImageData(): BEFORE_COMPRESS: bytesData: ${bytesData.lengthInBytes}');
+      final bytesCompressed = await FlutterImageCompress.compressWithList(
+          bytesData,
+          quality: QUALITY_DEFAULT,
+          minWidth: maxWidth ?? MAX_IMAGE_WIDTH);
+      log('CompressFileUtils::_compressImageData(): AFTER_COMPRESS_MOBILE: bytesData: ${bytesCompressed.lengthInBytes}');
+      return bytesCompressed;
+    } else {
+      return bytesData;
+    }
+  }
+}
\ No newline at end of file
diff --git a/core/pubspec.yaml b/core/pubspec.yaml
index 257405847..5485045d2 100644
--- a/core/pubspec.yaml
+++ b/core/pubspec.yaml
@@ -77,6 +77,8 @@ dependencies:
 
   flex_color_picker: 2.5.0
 
+  flutter_image_compress: 1.1.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter