Files
MEIZU-Battery-Healthy/lib/services/battery_data_service.dart
T

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Dart

import 'dart:developer' as dev;
import '../services/database_service.dart';
import '../logic/capacity_extractor.dart';
import '../models/saf_permission_state.dart';
import '../services/saf_storage_service.dart';
/// 电池数据服务:扫描日志、更新数据库
class BatteryDataService {
final SafStorageService _safService = SafStorageService();
final DatabaseService _dbService = DatabaseService();
/// 扫描所有日志文件并更新数据库
Future<void> scanAndUpdateDB() async {
dev.log('🔵 scanAndUpdateDB 开始', name: 'BatteryHealth');
final state = await _safService.getPermissionState();
if (state != SafPermissionState.authorized) {
dev.log('🔵 scanAndUpdateDB: 未授权', name: 'BatteryHealth');
return;
}
try {
final files = await _safService.listFiles();
final filePattern = RegExp(r'mbattery_charger_log_(\d{4}_\d{2}_\d{2})$');
for (String fileName in files) {
final match = filePattern.firstMatch(fileName);
if (match == null) continue;
final dateStr = match.group(1)!.replaceAll('_', '-');
dev.log('🔵 处理文件: $fileName, 日期: $dateStr', name: 'BatteryHealth');
try {
final lines = await _safService.readLogFile(fileName);
if (lines.isEmpty) continue;
// 🟢 1.4.5 改进:使用 CapacityExtractor 提取容量(仅从 Full 状态提取)
int? cap = CapacityExtractor.extractCapacity(lines);
// 🟢 如果今天没有充满电(cap == null),尝试从昨天复制数据
if (cap == null) {
dev.log('🔵 日期 $dateStr 无充满记录,尝试复制前一天数据', name: 'BatteryHealth');
// 查询最近一条已有数据
final recentData = await _dbService.queryRecentData(1);
if (recentData.isNotEmpty) {
final yesterdayCap = recentData.first['capacity'] as int;
final yesterdayMaxVolt =
recentData.first['volt_max'] as double? ?? 0.0;
final yesterdayMinVolt =
recentData.first['volt_min'] as double? ?? 0.0;
dev.log(
'🔵 复制前一天数据: cap=$yesterdayCap, date=$dateStr',
name: 'BatteryHealth',
);
// 🟢 复制昨天的容量和电压极值到今天
await _dbService.insertOrUpdate(
dateStr,
yesterdayCap,
yesterdayMaxVolt,
yesterdayMinVolt,
);
} else {
dev.log('🔵 无历史数据可复制,跳过日期 $dateStr', name: 'BatteryHealth');
}
continue; // 已处理,跳过后续电压提取逻辑
}
// 提取电压极值(从所有有效行提取,不限于 Full)
final voltReg = RegExp(r'vbat=(\d+)');
double? maxVolt, minVolt;
for (String line in lines) {
if (!line.contains('tbat=')) continue;
final match = voltReg.firstMatch(line);
if (match != null) {
final v = int.parse(match.group(1)!) / 1000000;
if (maxVolt == null || v > maxVolt) maxVolt = v;
if (minVolt == null || v < minVolt) minVolt = v;
}
}
if (maxVolt == null || minVolt == null) continue;
await _dbService.insertOrUpdate(dateStr, cap, maxVolt, minVolt);
dev.log('🔵 插入数据库: $dateStr, cap=$cap', name: 'BatteryHealth');
} catch (e) {
dev.log('🔵 处理文件 $fileName 异常: $e', name: 'BatteryHealth');
}
}
} catch (e) {
dev.log('🔵 scanAndUpdateDB 异常: $e', name: 'BatteryHealth');
}
}
/// 获取趋势数据(最近 N 天)
Future<List<Map<String, dynamic>>> getTrendData(int days) async {
return await _dbService.queryRecentData(days);
}
/// 获取最近一条数据
Future<Map<String, dynamic>?> getLatestData() async {
final data = await _dbService.queryRecentData(1);
if (data.isNotEmpty) return data.first;
return null;
}
}