import 'dart:io';

import 'package:desktop_plugin/utils/file_log.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  late Directory tmp;

  setUp(() {
    tmp = Directory.systemTemp.createTempSync('filelog-test');
    FileLog.init(tmp.path);
  });

  tearDown(() {
    FileLog.dispose();
    try {
      tmp.deleteSync(recursive: true);
    } catch (_) {}
  });

  test('写入按天命名的日志文件，行带完整时间戳', () {
    FileLog.write('hello 世界');
    FileLog.write('second line');
    final path = FileLog.currentPath!;
    expect(path, contains('app-'));
    expect(path, endsWith('.log'));
    final text = File(path).readAsStringSync();
    expect(text, contains('hello 世界'));
    expect(text, contains('second line'));
    // 完整时间戳：YYYYMMDD HH:MM:SS
    expect(RegExp(r'^\d{8} \d{2}:\d{2}:\d{2} ', multiLine: true).hasMatch(text), isTrue);
  });

  test('清理 7 天前的旧日志，保留新日志', () {
    final old = File('${tmp.path}/app-20200101.log')..writeAsStringSync('old');
    expect(old.existsSync(), isTrue);
    FileLog.init(tmp.path); // 重新 init 触发清理
    expect(old.existsSync(), isFalse, reason: '7 天前的日志应被删除');
    expect(FileLog.currentPath != null, isTrue, reason: '当天日志正常打开');
  });

  test('未 init（目录不可用）时 write 静默不抛', () {
    FileLog.dispose();
    // 不 init 直接 write：无句柄，应静默通过
    FileLog.write('no sink');
  });
}