line_warning.m

function line_warning(caller, MSG, varargin)
% LINE_WARNING(CALLER, ERRMSG)
 
% Copyright (c) 2012-2026, Imperial College London
% All rights reserved.
 
%global GlobalConstants.Verbose
persistent lastWarning;
persistent suppressedWarnings;
persistent suppressedWarningsTic;
persistent lastWarningTime;
persistent suppressedAnnouncement;
 
if GlobalConstants.Verbose == VerboseLevel.SILENT
    return
end
 
suppressedAnnouncement = false;
errmsg=sprintf(MSG, varargin{:});
w = warning('QUERY','ALL');
w(1).state = 'on'; % always print warnings by default
switch w(1).state
    case 'on'
        %warning('[%s] %s',caller,MSG);
        finalmsg = sprintf('Warning [%s.m]: %s',caller,errmsg);
        try
            if ~strcmp(finalmsg, lastWarning) || (toc(suppressedWarningsTic)-toc(lastWarningTime))>60
                line_printf(finalmsg);
                %warning(finalmsg);
                lastWarning = finalmsg;
                suppressedWarnings = false;                
                suppressedWarningsTic = tic;                
            else
                if ~suppressedWarnings && ~suppressedAnnouncement
                    %line_printf(finalmsg);
                    %warning(finalmsg);
                    finalmsg = sprintf('\nWarning [%s.m]: %s',caller,errmsg);
                    line_printf(sprintf('Warning [%s.m]: %s',caller,'Warning message casted more than once, repetitions will not be printed on screen for 60 seconds.\n'));
                    %warning(sprintf('Warning [%s.m]: %s',caller,'Warning message casted more than once, repetitions will not be printed on screen for 60 seconds.'));
                    suppressedAnnouncement = true;
                    suppressedWarnings = true;
                    suppressedWarningsTic = tic;
                end
            end
            lastWarningTime=tic;
        catch ME
            switch ME.identifier
                case 'MATLAB:toc:callTicFirstNoInputs'
                    %warning(finalmsg);
                    line_printf(finalmsg);
                    lastWarning = finalmsg;
                    suppressedWarnings = false;
                    suppressedWarningsTic = -1;
                    lastWarningTime=tic;
            end
        end
    case 'off'
        %line_printf(sprintf('Warning [%s.m]: %s',caller,errmsg));
end
end