1

lib/utils/logger.dart

+import 'dart:convert';
 import 'package:logger/logger.dart' as pkg;
 
+class _LongMessagePrinter extends pkg.LogPrinter {
+  final pkg.PrettyPrinter _prettyPrinter;
+  final int _chunkSize;
+
+  _LongMessagePrinter({
+    required int methodCount,
+    required int errorMethodCount,
+    required int lineLength,
+    required bool colors,
+    required bool printEmojis,
+    int chunkSize = 800,
+  })  : _prettyPrinter = pkg.PrettyPrinter(
+          methodCount: methodCount,
+          errorMethodCount: errorMethodCount,
+          lineLength: lineLength,
+          colors: colors,
+          printEmojis: printEmojis,
+        ),
+        _chunkSize = chunkSize;
+
+  String _tryPrettyJson(String message) {
+    try {
+      final trimmed = message.trim();
+      if ((trimmed.startsWith('{') && trimmed.endsWith('}')) ||
+          (trimmed.startsWith('[') && trimmed.endsWith(']'))) {
+        final decoded = jsonDecode(trimmed);
+        return const JsonEncoder.withIndent('  ').convert(decoded);
+      }
+    } catch (_) {}
+    return message;
+  }
+
+  List<String> _chunk(String text) {
+    if (text.length <= _chunkSize) return [text];
+    final chunks = <String>[];
+    for (var i = 0; i < text.length; i += _chunkSize) {
+      chunks.add(text.substring(i, i + _chunkSize > text.length ? text.length : i + _chunkSize));
+    }
+    return chunks;
+  }
+
+  @override
+  List<String> log(pkg.LogEvent event) {
+    final original = event.message;
+    final output = StringBuffer();
+    final lines = const LineSplitter().convert(_tryPrettyJson(original.toString()));
+    for (final line in lines) {
+      for (final chunk in _chunk(line)) {
+        output.writeln(chunk);
+      }
+    }
+    final wrappedEvent = pkg.LogEvent(
+      event.level,
+      output.toString().trimRight(),
+      error: event.error,
+      stackTrace: event.stackTrace,
+    );
+    return _prettyPrinter.log(wrappedEvent);
+  }
+}
+
 class Log {
   static final pkg.Logger _logger = pkg.Logger(
-    printer: pkg.PrettyPrinter(
+    printer: _LongMessagePrinter(
       methodCount: 0,
       errorMethodCount: 5,
       lineLength: 90,
       colors: true,
       printEmojis: true,
+      chunkSize: 800,
     ),
   );