import 'dart:convert';

import 'package:fis_common/index.dart';
import 'package:fis_common/logger/logger.dart';
import 'package:fis_jsonrpc/rpc.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/services.dart';
import 'package:get/get.dart';
import 'package:excel/excel.dart';
import 'package:intl/intl.dart';
import 'package:vitalapp/rpc.dart';
import 'package:vitalapp/store/store.dart';
import 'interfaces/excelData.dart';
import 'interfaces/models/exce_keys.dart';
import 'interfaces/models/excel_data.dart';
import 'interfaces/template.dart';

class ExcelDataManager implements IExcelDataManager {
  final List<String> _bloodRoutineKeys = [
    "Blood_Hgb",
    "Blood_Wbc",
    "ALC",
    "AMC",
    "ANC",
    "AEC",
    "Blood_NeutrophilRatio",
    "Blood_LymphocyteRatio",
    "Blood_MonocyteRatio",
    "EOS",
    "RBC",
    "Blood_Mchc",
    "Urea",
    "Blood_Hematocrit",
    "Blood_McV",
    "Blood_Mch",
    "Blood_Rlt",
    "Blood_MeanPlateletVolume",
    "Blood_PlateletDW",
    "Blood_PlateletPct"
  ];

  final List<String> _biochemicalKeys = [
    "Liver_Alt",
    "Liver_Ast",
    "Total_Protein",
    "Liver_Alb",
    "Liver_Tbil",
    "directBili",
    "GGT",
    "Renal_Cr",
    "UricAcid",
    "Urea",
    "BCH_Glu",
    "Lipid_Cho",
    "Lipid_Tg",
    "Lipid_Ldl",
    "Lipid_Hdl",
    "AGratio",
    "ALP",
    "UB",
    "Globulin",
  ];

  final List<String> biochemicalValues_CQZYKeys = [
    "Liver_Alt",
    "Liver_Ast",
    "Liver_Tbil",
    "Liver_Dbil",
    "Liver_Alb",
    "Urea",
    "Lipid_Cho",
    "Lipid_Tg",
    "Lipid_Ldl",
    "Lipid_Hdl",
    "BCH_Glu",
    "Renal_Cr",
  ];

  ///将csv中的数据解析成结构化数据
  @override
  Future<List<ExcelDataRecord>> CsvDataConvert(
      List<List<dynamic>> datas, String key) async {
    List<String> keys = [];
    if (key.contains("BiochemicalValues_CQZY")) {
      keys = biochemicalValues_CQZYKeys;
    } else if (key.contains("Biochemical")) {}
    String json = '';

    json = await Get.find<ITemplateManager>().getTemplateByKey(key);
    if (kDebugMode) {
      // String path = "assets/BiochemicalValues_CQZY.json";
      // json = await rootBundle.loadString(path);
    }
    List<ExcelDataRecord> csvRevords = [];

    List<dynamic> items = [];
    items = jsonDecode(json);
    if (kDebugMode) {
      //  items = jsonDecode(json)["Content"];
    }
    List<List<List<dynamic>>> result = _splitIntoChunks(datas);
    for (List<List<dynamic>> chunkDatas in result) {
      List<ExcelDataItem> csvDatas = [];
      for (var item in items) {
        try {
          if (item is Map) {
            int row = item["row"];
            int column = item["column"];
            String key = item["key"];
            String des = item["des"];
            String identifier = item["identifier"];
            String referenceRange = item["referenceRange"];
            String unit = item["unit"];
            String value = "";
            if (chunkDatas.length >= row + 1) {
              var rowValue = chunkDatas[row];
              if (rowValue.length >= column + 1) {
                value = chunkDatas[row][column].toString().trim();
              } else {
                continue;
              }
            } else {
              continue;
            }

            ///过滤不需要展示的数据
            if (keys.contains(key) ||
                key == "sampleBarcode" ||
                key == "patientName" ||
                key == "samplingTime") {
              csvDatas.add(ExcelDataItem(
                key: key,
                value: value,
                des: des,
                unit: unit,
                identifier: identifier,
                referenceRange: referenceRange,
              ));
            }
          }
        } catch (e) {
          logger.e("CsvDataManager csvDataConvert ex:", e);
        }
      }
      csvRevords.add(ExcelDataRecord(csvDatas));
    }
    return csvRevords;
  }

  @override
  Future<List<ExcelDataRecord>> ExcelDataConvert(
      List<List<Data?>> rows, String templateKey) async {
    ///首行是标题
    rows.removeAt(0);
    List<ExcelDataRecord> records = [];
    var json = await Get.find<ITemplateManager>().getTemplateByKey(templateKey);
    List<dynamic> items = jsonDecode(json);
    List<String> keys = [];
    if (templateKey.contains("BloodRoutine")) {
      keys = _bloodRoutineKeys;
    } else if (templateKey.contains("Biochemical")) {
      keys = _biochemicalKeys;
    }
    for (List<Data?> rowData in rows) {
      List<ExcelDataItem> csvDatas = [];
      for (var item in items) {
        try {
          if (item is Map) {
            String key = item["key"];

            ///过滤不需要展示的数据
            if (keys.contains(key) ||
                key == "sampleBarcode" ||
                key == "patientName" ||
                key == "samplingTime") {
              int column = item["column"];
              String des = item["des"];
              String unit = item["unit"];
              String identifier = item["identifier"];
              String referenceRange = item["referenceRange"];
              String value = "";
              if (key == "Blood_Wbc") {
                print("sampleBarcode");
              }
              if (rowData.length >= column + 1) {
                Data? data = rowData[column];
                if (data == null) {
                  continue;
                } else {
                  value = data.value.toString();
                }

                csvDatas.add(ExcelDataItem(
                  key: key,
                  value: value,
                  des: des,
                  unit: unit,
                  identifier: identifier,
                  referenceRange: referenceRange,
                ));
              }
            }
          }
        } catch (e) {
          logger.e("CsvDataManager ExcelDataConvert ex:", e);
        }
      }
      records.add(ExcelDataRecord(csvDatas));
    }
    return records;
  }

  @override
  Future<bool> uploadDatas(
      List<ExcelDataRecord> datas, String templateKey) async {
    try {
      List<String> keys = [];
      if (templateKey.contains("BiochemicalValues_CQZY")) {
        keys = biochemicalValues_CQZYKeys;
      } else if (templateKey.contains("BloodRoutine")) {
        keys = _bloodRoutineKeys;
      } else if (templateKey.contains("Biochemical")) {
        keys = _biochemicalKeys;
      }
      if (ExcelTemplateKeys.AllBiochemicalKeys.contains(templateKey)) {
        templateKey = "HEIBiochemical";
      } else if (ExcelTemplateKeys.AllBloodRoutineKeys.contains(templateKey)) {
        templateKey = "HEIBloodRoutine";
      }
      List<AddExamDTO> examInfos = [];
      for (ExcelDataRecord data in datas) {
        List<ExcelDataItem> items = data.excelDatas;
        var physicalExamNumber =
            items.firstWhere((element) => element.key == "sampleBarcode").value;
        String examTimeStr =
            items.firstWhere((element) => element.key == "samplingTime").value;

        // 使用DateFormat格式化日期，去除时间部分
        DateFormat dateOnlyFormat = DateFormat('yyyy-MM-dd');
        DateTime dateOnlyDateTime = dateOnlyFormat.parse(examTimeStr);
        var examDTO = AddExamDTO(
          key: templateKey,
          examNumber: physicalExamNumber,
          examTime: dateOnlyDateTime,
          examData: data.toJson(keys),
        );
        examInfos.add(examDTO);
      }
      if (examInfos.length <= 200) {
        await rpc.vitalExam.batchAddExamAsync(BatchAddExamRequest(
          examInfos: examInfos,
          token: Store.user.token,
        ));
      } else {
        // 计算需要拆分成多少个小组
        int groupCount = (examInfos.length / 200).ceil();
        // 遍历并拆分列表
        for (int i = 0; i < groupCount; i++) {
          // 计算当前小组的起始索引和结束索引
          int startIndex = i * 200;
          int endIndex = (i + 1) * 200;
          // 如果已经到达列表的末尾，设置结束索引为列表的长度
          if (endIndex > examInfos.length) {
            endIndex = examInfos.length;
          }
          // 使用 getRange 方法获取当前小组的数据
          List<AddExamDTO> group =
              examInfos.getRange(startIndex, endIndex).toList();
          await rpc.vitalExam.batchAddExamAsync(BatchAddExamRequest(
            examInfos: group,
            token: Store.user.token,
          ));
        }
      }
    } catch (e) {
      logger.e("ExcelDataManager uploadDatas ex:", e);
      return false;
    }
    return true;
  }

  List<List<List<dynamic>>> _splitIntoChunks(List<List<dynamic>> datas) {
    List<List<List<dynamic>>> records = [];
    List<List<dynamic>> currentRecord = [];

    for (int i = 0; i < datas.length; i++) {
      // Check if the current element and the next one are empty lists
      if ((datas[i].length == 1 && datas[i][0].isEmpty) &&
          i + 1 < datas.length &&
          (datas[i + 1].length == 1 && datas[i + 1][0].isEmpty)) {
        // Skip the next empty list as it is part of the separator
        i++;
        // Add the current record to records if it is not empty
        if (currentRecord.isNotEmpty) {
          records.add(List.from(currentRecord));
          currentRecord.clear();
        }
      } else {
        // Add the current data to the current record
        currentRecord.add(datas[i]);
      }
    }

    // Add the last record if it's not empty (case when no trailing empty lists)
    if (currentRecord.isNotEmpty) {
      records.add(currentRecord);
    }

    return records;
  }
}