function myoutput=PosteriorIRF_core2(myinputs,fpar,npar,whoiam,ThisMatlab)
% myoutput=PosteriorIRF_core2(myinputs,fpar,npar,whoiam, ThisMatlab)
% Generates the Posterior IRFs plot from the IRFs generated in
% PosteriorIRF_core1
%
% PARALLEL CONTEXT
% Performs in parallel execution a portion of the PosteriorIRF.m code.
% For more information, see the comment in posterior_sampler_core.m
% function.
%
% INPUTS
%   o myimput            [struc]     The mandatory variables for local/remote
%                                    parallel computing obtained from posterior_sampler.m
%                                    function.
%   o fblck and nblck    [integer]   The Metropolis-Hastings chains.
%   o whoiam             [integer]   In concurrent programming a modality to refer to the differents thread running in parallel is needed.
%                                    The integer whoaim is the integer that
%                                    allows us to distinguish between them. Then it is the index number of this CPU among all CPUs in the
%                                    cluster.
%   o ThisMatlab         [integer]   Allows us to distinguish between the
%                                    'main' matlab, the slave matlab worker, local matlab, remote matlab,
%                                     ... Then it is the index number of this slave machine in the cluster.
%
% OUTPUTS
% o myoutput             [struc]    Contained: OutputFileName (i.e. the figures without the file .txt).
%
% ALGORITHM
%   Portion of PosteriorIRF.m function code. Specifically the last 'for' cycle.
%
% SPECIAL REQUIREMENTS.
%   None.
%
% Copyright © 2006-2023 Dynare Team
%
% This file is part of Dynare.
%
% Dynare 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 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 <https://www.gnu.org/licenses/>.

if nargin<4
    whoiam=0;
end

% Reshape 'myinputs' for local computation.
% In order to avoid confusion in the name space, the instruction struct2local(myinputs) is replaced by:

options_=myinputs.options_;
Check=options_.TeX;
if (Check)
    varlist_TeX=myinputs.varlist_TeX;
end

nvar=myinputs.nvar;
MeanIRF=myinputs.MeanIRF;
tit=myinputs.tit;
nn=myinputs.nn;
MAX_nirfs_dsgevar=myinputs.MAX_nirfs_dsgevar;
HPDIRF=myinputs.HPDIRF;
dname=myinputs.dname;
fname=myinputs.fname;

if options_.dsge_var
    HPDIRFdsgevar=myinputs.HPDIRFdsgevar;
    MeanIRFdsgevar=myinputs.MeanIRFdsgevar;
end

varlist=myinputs.varlist;
MaxNumberOfPlotPerFigure=myinputs.MaxNumberOfPlotPerFigure;

% Necessary only for remote computing!
if whoiam
    Parallel=myinputs.Parallel;
end

% To save the figures where the function is computed!

DirectoryName = CheckPath('Output',dname);

RemoteFlag = 0;
if whoiam
    if Parallel(ThisMatlab).Local==0
        RemoteFlag =1;
    end
    prct0={0,whoiam,Parallel(ThisMatlab)};
    dyn_waitbar(prct0,'PosteriorIRF Plots ...');
end

OutputFileName={};

subplotnum = 0;
for i=fpar:npar
    figunumber = 0;

    for j=1:nvar
        if max(abs(MeanIRF(:,j,i))) >= options_.impulse_responses.plot_threshold
            subplotnum = subplotnum+1;
            if subplotnum == 1 && options_.relative_irf
                hh_fig = dyn_figure(options_.nodisplay,'Name',['Relative response to orthogonalized shock to ' tit{i}]);
            elseif subplotnum == 1 && ~options_.relative_irf
                hh_fig = dyn_figure(options_.nodisplay,'Name',['Orthogonalized shock to ' tit{i}]);
            end

            set(0,'CurrentFigure',hh_fig)
            subplot(nn,nn,subplotnum);
            if ~MAX_nirfs_dsgevar
                if ~isnan(min(HPDIRF(:,1,j,i)))
                    h1 = area(1:options_.irf,HPDIRF(:,2,j,i),'FaceColor',[.9 .9 .9],'BaseValue',min(HPDIRF(:,1,j,i))); %grey below HPDIsup and minimum of HPDIinf
                    hold on
                    h2 = area(1:options_.irf,HPDIRF(:,1,j,i),'FaceColor',[1 1 1],'BaseValue',min(HPDIRF(:,1,j,i))); %white below HPDIinf and minimum of HPDIinf
                end
                plot(1:options_.irf,MeanIRF(:,j,i),'-k','linewidth',3)
                box on
                axis tight
                xlim([1 options_.irf]);
                remove_fractional_xticks;
                hold off
            else
                if ~isnan(min([min(HPDIRF(:,1,j,i)),min(HPDIRFdsgevar(:,1,j,i))]))
                    h1 = area(1:options_.irf,HPDIRF(:,2,j,i),'FaceColor',[.9 .9 .9],'BaseValue',min([min(HPDIRF(:,1,j,i)),min(HPDIRFdsgevar(:,1,j,i))])); %grey below HPDIsup and minimum of HPDIinf and HPDIRFdsgevar
                    hold on
                    h2 = area(1:options_.irf,HPDIRF(:,1,j,i),'FaceColor',[1 1 1],'BaseValue',min([min(HPDIRF(:,1,j,i)),min(HPDIRFdsgevar(:,1,j,i))])); %white below HPDIinf and minimum of  HPDIinf and HPDIRFdsgevar
                end
                plot(1:options_.irf,MeanIRF(:,j,i),'-k','linewidth',3)
                plot(1:options_.irf,MeanIRFdsgevar(:,j,i),'--k','linewidth',2)
                if ~isnan(min(HPDIRF(:,1,j,i)))
                    plot(1:options_.irf,HPDIRFdsgevar(:,1,j,i),'--k','linewidth',1)
                    plot(1:options_.irf,HPDIRFdsgevar(:,2,j,i),'--k','linewidth',1)
                end
                box on
                axis tight
                xlim([1 options_.irf]);
                remove_fractional_xticks;
                hold off
            end
            if options_.TeX
                title(['$' varlist_TeX{j} '$'],'Interpreter','latex')               
            else
                title(varlist{j},'Interpreter','none')
            end
        else
            if options_.debug
                fprintf('POSTERIOR_IRF: The IRF of %s to %s is smaller than the irf_plot_threshold of %4.3f and will not be displayed.\n',varlist{j},tit{i},options_.impulse_responses.plot_threshold)
            end
        end

        if subplotnum == MaxNumberOfPlotPerFigure || (j == nvar  && subplotnum> 0)
            figunumber = figunumber+1;
            dyn_saveas(hh_fig,[DirectoryName '/'  fname '_Bayesian_IRF_' tit{i} '_' int2str(figunumber)],options_.nodisplay,options_.graph_format);
            if RemoteFlag==1
                OutputFileName = [OutputFileName; {[DirectoryName,filesep], [fname '_Bayesian_IRF_' deblank(tit(i,:)) '_' int2str(figunumber) '.*']}];
            end
            subplotnum = 0;
        end
    end % loop over selected endo_var
    if whoiam
        fprintf('Done! \n');
        waitbarString = [ 'Exog. shocks ' int2str(i) '/' int2str(npar) ' done.'];
        dyn_waitbar((i-fpar+1)/(npar-fpar+1),[],waitbarString);
    end
end % loop over exo_var

myoutput.OutputFileName = OutputFileName;
