function initialize_dseries_class()

% Copyright (C) 2015-2019 Dynare Team
%
% This code is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Dynare dseries submodule is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.

% Get the path to the dseries toolbox.
dseries_src_root = strrep(which('initialize_dseries_class'),'initialize_dseries_class.m','');

% Set the subfolders to be added in the path.
p = {'read'; ...
     'utilities/is'; ...
     'utilities/op'; ...
     'utilities/convert'; ...
     'utilities/str'; ...
     'utilities/insert'; ...
     'utilities/file'; ...
     'utilities/from'; ...
     'utilities/print'; ...
     'utilities/variables'; ...
     'utilities/cumulate'; ...
     'utilities/struct'; ...
     'utilities/x13'};

% Add missing routines if dynare is not in the path
if ~exist('isint','file')
    p{end+1} = 'utilities/missing/isint';
end

if ~exist('isoctave','file')
    p{end+1} = 'utilities/missing/isoctave';
end

if ~exist('shiftS','file')
    p{end+1} = 'utilities/missing/shiftS';
end

if ~exist('matlab_ver_less_than','file')
    p{end+1} = 'utilities/missing/matlab_ver_less_than';
end

if ~exist('demean','file')
    p{end+1} = 'utilities/missing/demean';
end

if ~exist('ndim','file')
    p{end+1} = 'utilities/missing/ndim';
end

if ~exist('OCTAVE_VERSION') && (~exist('rows','file') || ~exist('columns','file'))
    p{end+1} = 'utilities/missing/dims';
end

if ~exist('sample_hp_filter','file')
    p{end+1} = 'utilities/missing/sample_hp_filter';
end

if ~exist('get_file_extension','file')
    p{end+1} = 'utilities/missing/get_file_extension';
end

if exist('OCTAVE_VERSION') && ~exist('user_has_octave_forge_package','file')
    p{end+1} = 'utilities/missing/user_has_octave_forge_package';
end

if ~exist('get_cells_id','file')
    p{end+1} = 'utilities/missing/get_cells_id';
end

if ~exist('randomstring','file')
    p{end+1} = 'utilities/missing/randomstring';
end

if ~exist('one_sided_hp_filter','file')
    p{end+1} = 'utilities/missing/one_sided_hp_filter';
end

if ~exist('OCTAVE_VERSION') && ~exist('ismatrix','builtin')
    p{end+1} = 'utilities/missing/ismatrix';
end

if ~exist('OCTAVE_VERSION') && ~exist('isrow','builtin')
    p{end+1} = 'utilities/missing/isrow';
end

if ~exist('OCTAVE_VERSION') && ~exist('iscolumn','builtin')
    p{end+1} = 'utilities/missing/iscolumn';
end

if ~exist('OCTAVE_VERSION') && ~exist('strsplit','file')
    p{end+1} = 'utilities/missing/strsplit';
end

if ~exist('OCTAVE_VERSION') && ~exist('strjoin','file')
    p{end+1} = 'utilities/missing/strjoin';
end

% Set path
P = cellfun(@(c)[dseries_src_root c], p, 'uni', false);
addpath(P{:});

% If x13 binary is not available, display a warning, and remove the x13
% subdirectory from the path
if isempty(select_x13_binary(true));
    rmpath([dseries_src_root 'utilities/x13']);
end

assignin('caller', 'dseries_src_root', dseries_src_root);