function [varargout]=profile_read_seals(dataset,nf,m,varargin);
% read seal data in the ARGO netcdf format
%
% if m=0 :
%  return the information on the nf-th file referenced in
%  dataset.fileInList.
%   [nprofiles,data_seals]=profile_read_seals(dataset,nf,0);
%       nprofiles: number of profiles in the nf-th file
%       data_argo: argo data in a struct variable
%
% if m~=0 :
%  return the m-th profile from the nf-th file referenced in
%  dataset.fileInList.
%   profileCur=profile_read_seals(dataset,nf,m,data_argo);
%
% profileCur = (m-th profile of nf-th file)
%      pnum_txt: '5900841'
%           ymd: 20060101
%           hms: 3207
%           lat: -46.709
%           lon: 137.501
%         direc: 1
%             t: [1x115 single]
%             s: [1x115 single]
%             p: [1x115 single]
%         t_ERR: [1x115 single]
%         s_ERR: [1x115 single]
%     PorZisBAD: 0
%

fileIn=[dataset.dirIn dataset.fileInList(nf).name];

if m==0; % return the number of profile.
        
    %get the number of profiles:
    list_var={'JULD','LATITUDE','LONGITUDE', ...
        'DIRECTION','PLATFORM_NUMBER',...
        'PRES','PRES_QC',...
        'TEMP','TEMP_QC',...
        'PSAL','PSAL_QC'};
    data_seals=[];
    for ii=1:length(list_var),
        ncload(fileIn,list_var{ii});
        data_seals=setfield(data_seals,list_var{ii},eval(list_var{ii}));
    end
    nprofiles = length(JULD);
    
    varargout{1}=nprofiles;
    varargout{2}=data_seals;
    
else;%if m==0;
    
    % load data
    data_seals=varargin{1};
    
    %date, position, etc
    juld=data_seals.JULD(m)+datenum(1950,1,1);
    [Y, M, D, H, MN, S] = datevec(juld);
    ymd=Y*1e4+M*1e2+D;
    hms=H*1e4+MN*1e2+S;
    
    lat=data_seals.LATITUDE(m);
    lon=data_seals.LONGITUDE(m); if lon < 0; lon=lon+360;end;
    
    direction=data_seals.DIRECTION(m);
    direc=0; 
    if(direction=='A');direc=1;end;
    if(direction=='D');direc=2;end
    
    pnum_txt=deblank(data_seals.PLATFORM_NUMBER(m,:));
    pnum_txt=pnum_txt(ismember(pnum_txt,'0123456789')); pnum=str2num(pnum_txt);
    if isempty(pnum_txt); pnum_txt='9999'; pnum=9999; disp(['no name for profile ' num2str(m)]); end;
    
    
    % pressure data
    
    p=data_seals.PRES(m,:);
    p_QC=data_seals.PRES_QC(m,:);
    p_QC(isnan(p))='5';
    
    for n=1:length(p)-1; % doubles
        tmp1=find(p(n+1:end)==p(n)); p(n+tmp1)=NaN; p_QC(n+tmp1)='5';
    end
    
    bad_P=0;
    tmp1=find(p_QC=='4');
    if(length(tmp1)<=5);
        %get rid of these few bad points and keep the profile
        p(tmp1)=NaN;p_QC(tmp1)='5';
    else;
        %flag the profile (will be masked in the main file)
        %but keep the bad points (to interp and be able to CHECK)
        bad_P=1;
    end;
    
    % temperature data
    t=data_seals.TEMP(m,:);
    t_QC=data_seals.TEMP_QC(m,:);
    t_ERR=t*0;
    
    % salinity data
    s=data_seals.PSAL(m,:);
    s_QC=data_seals.PSAL_QC(m,:);
    s_ERR=s*0;
    
    
    if isnan(t(1)); %this file does not contain temperature data...
        t=NaN*p; t_ERR=0*p;
    else;
        t(~ismember(t_QC,'12'))=NaN;
    end;
    if isnan(s(1)); %this file does not contain salinity data...
        s=NaN*p; s_ERR=0*p;
    else;
        s(~ismember(s_QC,'12'))=NaN;
    end;
    
    profileCur.pnum_txt=pnum_txt;
    profileCur.ymd=ymd; profileCur.hms=hms;
    profileCur.lat=lat; profileCur.lon=lon;
    profileCur.direc=direc;
    profileCur.t=t;
    profileCur.s=s;
    profileCur.p=p;
    profileCur.t_ERR=t_ERR;
    profileCur.s_ERR=s_ERR;
    profileCur.PorZisBAD=bad_P;
    
    varargout = {profileCur};
    
end;