function [t, data] = golem_data(shot, diagNAME,diagPATH)
%     Simple interface for GOLEM database
%     Use: [t, data] = golem_data(10011, 'loop_voltage')
%           plot(t, data)
%      t  - time vector Nx1
%      data - data 

if nargin<=2
    diagPATH='/Diagnostics/BasicDiagnostics/Results';
end
% initate output data    
t = 0; data=[];

% initiate remote url path
baseURL='http://golem.fjfi.cvut.cz/shots/';

% initate the temporary file where to temporary save data
local_file = 'data_loc';

% full path of the remote URL link to data
remote_file = [baseURL, int2str(shot),diagPATH '/' diagNAME];

% Access data: write them in local_file 
try
urlwrite(remote_file, local_file);
catch me
    disp('No path found to data');
    return
end

% Load the temporary file
if exist(local_file)

    try
    data = load(local_file,'\t');
    eval(['! rm ' local_file])
    catch error
        disp(['Missing diagnostic ', diagn, ' in shot ', num2str(shot)]) 
        return
    end
        

else
      
    disp(['Missing diagnostic ', diagn, ' in shot ', num2str(shot)])   
    t=[];
    data=[];    
    return

end

% extract data files

if length(data)==1
    t=data;
else
    t=data(:,1);
    data=data(:,2);
end