import 'package:fitnote/models/health.dart';
import 'package:fitnote/utils/record_utils.dart';
import 'package:flutter_common/flutter_common.dart';
import 'package:hive_flutter/hive_flutter.dart';

class HealthService {
  static const String boxName = 'healths';

  Box<HealthRecord> get box => Hive.box<HealthRecord>(boxName);

  Future<bool> addRecord(HealthRecord record) async {
    try {
      await box.add(record);
      return true;
    } catch (e) {
      return false;
    }
  }

  List<HealthRecord> getAllRecords() {
    return box.values.toList();
  }

  List<HealthRecord> getAllRecordsOrderByDate() {
    final records = getAllRecords();

    records.sort((a, b) {
      final dateA = DateTime.parse(a.date);
      final dateB = DateTime.parse(b.date);
      return dateB.compareTo(dateA);
    });

    return records;
  }

  HealthRecord getRecordByDate(DateTime date) {
    final record = box.values.toList().firstWhere(
      (item) => item.date == formatDate(date),
      orElse: () => HealthRecord.getEmpty(date),
    );

    return record.copyWith();
  }

  // 获取总运动时长
  double getTotalSport() {
    int year = DateTime.now().year;
    int month = DateTime.now().month;
    double totalDuration = 0;

    for (final record in getAllRecords()) {
      if (record.sportDuration != 0) {
        final recordDate = DateTime.parse(record.date);

        if (recordDate.year == year && recordDate.month == month) {
          totalDuration += record.sportDuration;
        }
      }
    }

    return totalDuration;
  }

  // 获取平均睡眠
  num getAvgSleep() {
    int year = DateTime.now().year;
    int month = DateTime.now().month;
    num totalDuration = 0;
    int total = 0;

    for (final record in getAllRecords()) {
      final startTime = record.sleepStartTime;
      final endTime = record.sleepEndTime;
      if (startTime.isNotEmpty && endTime.isNotEmpty) {
        final recordDate = DateTime.parse(record.date);
        if (recordDate.year == year && recordDate.month == month) {
          total++;
          totalDuration += calSleepMinDuration(startTime, endTime);
        }
      }
    }

    if (totalDuration == 0) {
      return 0;
    } else {
      return roundNum(totalDuration / total / 60);
    }
  }

  // 获取最新体重
  double getLatestWeight() {
    final records = getAllRecordsOrderByDate();

    for (final record in records) {
      if (record.weight != 0) {
        return record.weight.toDouble();
      }
    }

    return 0;
  }

  // 获取上次体重
  num getLastWeight(String date) {
    final records = getAllRecordsOrderByDate();

    final targetIndex = records.indexWhere((record) => record.date == date);
    if (targetIndex == -1) return 0;

    // 从目标日期往前找（更早的日期）
    for (int i = targetIndex + 1; i < records.length; i++) {
      final record = records[i];
      if (record.weight != 0) {
        return record.weight;
      }
    }

    return 0;
  }

  // 获取上次运动时长
  num getLastSport(String date) {
    final records = getAllRecordsOrderByDate();

    final targetIndex = records.indexWhere((record) => record.date == date);
    if (targetIndex == -1) return 0;

    // 从目标日期往前找（更早的日期）
    for (int i = targetIndex + 1; i < records.length; i++) {
      final record = records[i];
      if (record.sportDuration != 0) {
        return record.sportDuration;
      }
    }

    return 0;
  }

  // 获取上次睡眠时长
  num getLastSleep(String date) {
    final records = getAllRecordsOrderByDate();

    final targetIndex = records.indexWhere((record) => record.date == date);
    if (targetIndex == -1) return 0;

    // 从目标日期往前找（更早的日期）
    for (int i = targetIndex + 1; i < records.length; i++) {
      final record = records[i];
      final startTime = record.sleepStartTime;
      final endTime = record.sleepEndTime;
      if (startTime.isNotEmpty && endTime.isNotEmpty) {
        return calSleepMinDuration(startTime, endTime);
      }
    }

    return 0;
  }

  Future<bool> updateRecord(HealthRecord record) async {
    try {
      final existingRecords = box.values.toList();
      final index = existingRecords.indexWhere(
        (item) => item.date == record.date,
      );

      if (index == -1) {
        await box.add(record);
      } else {
        final key = box.keyAt(index);
        await box.put(key, record);
      }

      return true;
    } catch (e) {
      print('Update record error: $e');
      return false;
    }
  }

  Future<bool> deleteRecord(HealthRecord record) async {
    try {
      await record.delete();
      return true;
    } catch (e) {
      return false;
    }
  }
}