unit uFile3Json;

interface

uses
  System.Classes, System.SysUtils, System.JSON, System.RegularExpressions, StrUtils;

type
  TWaterData = record
    DataValue: Integer;
    Status: string;
    ID: string;
    Sn: string;
    HasData: Boolean;
  end;

  TFileMonitor = class
  private
    FInWaterData: TWaterData;
    FOutWaterData: TWaterData;
    FDebugInfo: TStringList;
    function ExtractID(const Line: string): string;
    function ExtractSn(const Line: string): string;
    function ExtractStatus(const Line: string): string;
    function ExtractData(const Line: string): string;
    function ExtractLastValue(const DataStr: string): Integer;
    procedure AddDebugInfo(const Info: string);
  public
    constructor Create;
    destructor Destroy; override;
    function ProcessFileContent(const Content: TStringList): string;
    property DebugInfo: TStringList read FDebugInfo;
  end;

implementation

constructor TFileMonitor.Create;
begin
  inherited;
  FDebugInfo := TStringList.Create;
  FInWaterData.HasData := False;
  FOutWaterData.HasData := False;
end;

destructor TFileMonitor.Destroy;
begin
  FDebugInfo.Free;
  inherited;
end;

procedure TFileMonitor.AddDebugInfo(const Info: string);
begin
  FDebugInfo.Add(Info);
end;

function TFileMonitor.ExtractID(const Line: string): string;
var
  StartPos, EndPos: Integer;
begin
  Result := '';
  StartPos := Pos('ID：', Line);
  if StartPos > 0 then
  begin
    EndPos := PosEx(',', Line, StartPos);
    if EndPos > StartPos then
      Result := Copy(Line, StartPos + 3, EndPos - StartPos - 3)
    else
      Result := Copy(Line, StartPos + 3, MaxInt);

    AddDebugInfo('提取ID: ' + Result);
  end
  else
  begin
    AddDebugInfo('未找到ID');
  end;
end;

function TFileMonitor.ExtractSn(const Line: string): string;
var
  StartPos, EndPos: Integer;
begin
  Result := '';
  StartPos := Pos('SN码：', Line);
  if StartPos > 0 then
  begin
    EndPos := PosEx(',', Line, StartPos);
    if EndPos > StartPos then
      Result := Copy(Line, StartPos + 3, EndPos - StartPos - 3)
    else
      Result := Copy(Line, StartPos + 3, MaxInt);

    AddDebugInfo('提取SN码: ' + Result);
  end
  else
  begin
    AddDebugInfo('未找到SN码');
  end;
end;

function TFileMonitor.ExtractStatus(const Line: string): string;
var
  StartPos, EndPos: Integer;
begin
  Result := '';
  StartPos := Pos('卡关：', Line);
  if StartPos > 0 then
  begin
    StartPos := StartPos + 3;
    EndPos := Length(Line);
    Result := Copy(Line, StartPos, EndPos - StartPos + 1);
    Result := Trim(Result);
    AddDebugInfo('提取状态: ' + Result);
  end
  else
  begin
    AddDebugInfo('未找到状态');
  end;
end;

function TFileMonitor.ExtractData(const Line: string): string;
var
  StartPos, EndPos: Integer;
begin
  Result := '';
  StartPos := Pos('[', Line);
  EndPos := Pos(']', Line);
  if (StartPos > 0) and (EndPos > StartPos) then
  begin
    Result := Copy(Line, StartPos + 1, EndPos - StartPos - 1);
    AddDebugInfo('提取数据: ' + Result);
  end
  else
  begin
    AddDebugInfo('未找到数据');
  end;
end;

function TFileMonitor.ExtractLastValue(const DataStr: string): Integer;
var
  Values: TStringList;
  LastValue: string;
  I: Integer;
begin
  Result := 0;
  Values := TStringList.Create;
  try
    try
      Values.Delimiter := ',';
      Values.StrictDelimiter := True;
      Values.DelimitedText := DataStr;

      AddDebugInfo('数据分割结果: ' + IntToStr(Values.Count) + ' 个值');

      // 从后往前找第一个有效的数值
      for I := Values.Count - 1 downto 0 do
      begin
        LastValue := Trim(Values[I]);
        AddDebugInfo('检查值: ' + LastValue);

        try
          if TryStrToInt(LastValue, Result) then
          begin
            AddDebugInfo('找到有效值: ' + IntToStr(Result));
            Exit;
          end;
        except
          on E: Exception do
          begin
            AddDebugInfo('转换数值时发生异常: ' + E.Message);
            Result := 0;
          end;
        end;
      end;

      AddDebugInfo('未找到有效数值');
    except
      on E: Exception do
      begin
        AddDebugInfo('处理数据值时发生异常: ' + E.Message);
        Result := 0;
      end;
    end;
  finally
    Values.Free;
  end;
end;

function TFileMonitor.ProcessFileContent(const Content: TStringList): string;
var
  I: Integer;
  Line, CurrentID, Status, DataStr, CurrentSn: string;
  LastValue: Integer;
  LastID, LastSn: string;
  RootObj: TJSONObject;
  InWaterDataArray, OutWaterDataArray: TJSONArray;
  HasInWater, HasOutWater: Boolean;
begin

  AddDebugInfo('开始处理文件内容');

  if Content = nil then
  begin
    AddDebugInfo('错误：Content为nil');
    Result := '{}';
    Exit;
  end;

  AddDebugInfo('文件行数: ' + IntToStr(Content.Count));

  // 初始化
  LastID := '';
  LastSn := '';
  FInWaterData.HasData := False;
  FOutWaterData.HasData := False;
  HasInWater := False;
  HasOutWater := False;

  // 处理每一行
  for I := 0 to Content.Count - 1 do
  begin
    Line := Content[I];
    AddDebugInfo('处理行 ' + IntToStr(I) + ': ' + Line);

    CurrentID := ExtractID(Line);
    CurrentSn := ExtractSn(Line);

    // 如果ID为空，跳过
    if CurrentID = '' then
      Continue;

    // 记录最后一个ID
    LastID := CurrentID;
    LastSn := CurrentSn;

    Status := ExtractStatus(Line);

    // 检查是否是入水距离值
    if (Pos('入水距离值', Line) > 0) then
    begin
      AddDebugInfo('找到入水距离值');
      DataStr := ExtractData(Line);
      if DataStr <> '' then
      begin
        LastValue := ExtractLastValue(DataStr);

        // 只保留状态为"合格"的数据
      //  if Status = '合格' then
        begin
          AddDebugInfo('入水距离状态合格，记录数据');
          FInWaterData.DataValue := LastValue;
          FInWaterData.Status := Status;
          FInWaterData.Sn := CurrentSn;
          FInWaterData.ID := CurrentID;
          FInWaterData.HasData := True;
          HasInWater := True;
        end
//        else
//        begin
//          AddDebugInfo('入水距离状态不合格: ' + Status);
//        end;
      end;
    end
    // 检查是否是出水距离值
    else if (Pos('出水距离值', Line) > 0) then
    begin
      AddDebugInfo('找到出水距离值');
      DataStr := ExtractData(Line);
      if DataStr <> '' then
      begin
        LastValue := ExtractLastValue(DataStr);

        // 只保留状态为"合格"的数据
    //    if Status = '合格' then
        begin
          AddDebugInfo('出水距离状态合格，记录数据');
          FOutWaterData.DataValue := LastValue;
          FOutWaterData.Status := Status;
          FOutWaterData.ID := CurrentID;
          FOutWaterData.Sn := CurrentSn;
          FOutWaterData.HasData := True;
          HasOutWater := True;
        end
//        else
//        begin
//          AddDebugInfo('出水距离状态不合格: ' + Status);
//        end;
      end;
    end;
  end;

  AddDebugInfo(Format('处理完成，最后ID%s,Sn%s: ' , [LastID,LastSn]));
  AddDebugInfo('入水数据有效: ' + BoolToStr(HasInWater, True));
  AddDebugInfo('出水数据有效: ' + BoolToStr(HasOutWater, True));

  RootObj := TJSONObject.Create;
  try
      // 添加合并ID（如果需要）
     if FInWaterData.ID<>'' then
     begin
       RootObj.AddPair('SN码', FInWaterData.Sn.Replace('：','').Replace(':','').Replace(';','')); // 或者根据需求选择
       RootObj.AddPair('ID', FInWaterData.ID); // 或者根据需求选择
     end
     else
     begin
       RootObj.AddPair('SN码', FOutWaterData.Sn.Replace('：','').Replace(':','').Replace(';','')); // 或者根据需求选择
       RootObj.AddPair('ID', FOutWaterData.ID); // 或者根据需求选择
     end;

    // 添加入水数据
    if HasInWater then
    begin
      RootObj.AddPair('距离', TJSONNumber.Create(FInWaterData.DataValue));
   //   RootObj.AddPair('入水SN码', FInWaterData.Sn);
      RootObj.AddPair('入水卡关状态', FInWaterData.Status);
      AddDebugInfo('添加入水数据: ' + IntToStr(FInWaterData.DataValue));
    end
    else
    begin
      AddDebugInfo('无有效入水数据');
    end;

    // 添加出水数据
    if HasOutWater then
    begin
      RootObj.AddPair('出水距离', TJSONNumber.Create(FOutWaterData.DataValue));
   //   RootObj.AddPair('出水SN码', FOutWaterData.Sn);
      RootObj.AddPair('卡关', FOutWaterData.Status);
      AddDebugInfo('添加出水数据: ' + IntToStr(FOutWaterData.DataValue));
    end
    else
    begin
      AddDebugInfo('无有效出水数据');
    end;

    Result := RootObj.ToString;
    AddDebugInfo('最终结果: ' + Result);
  finally
    RootObj.Free;
  end;
end;

end.