\documentclass{article}

% Preamble stuff
\input{./tex-src/preamble.tex}
\input{./tex-src/theorems.tex}
\input{./tex-src/references.tex}
\input{./tex-src/times.tex}

% New command stuff
\let\d\pgfcalendarshorthand
\newcommand\formatdate[2]{\pgfcalendar{cal}{#1}{#1}{#2}}

\newcommand\firstdate{2022-01-01}
\newcommand\lastdate{\year-\month-\day}

\newcommand\grayrule{{\color{gray} \noindent\makebox[\linewidth]{\rule{\paperwidth}{0.4pt}}}}

\def\firstoftwo#1#2{#1}
\def\secondoftwo#1#2{#2}
\def\iffileempty#1{%
	\ifnum0\pdffilesize{#1}>0
		\expandafter\secondoftwo
	\else
		\expandafter\firstoftwo
	\fi
}
\newcommand\emptyentry[3]{%
	\iffileempty{#1}{
		\pgfcalendarifdate{#3}{equals=\year-\month-\day}{
			\phantomsection\addcontentsline{toc}{subsubsection}{#2 (Empty) (Today)}
		}{
			\phantomsection\addcontentsline{toc}{subsubsection}{#2 (Empty)}
		}
		\newline {\LARGE {\color{red}No journal entry for today!
			}}}{
		\pgfcalendarifdate{#3}{equals=\year-\month-\day}{
			\phantomsection\addcontentsline{toc}{subsubsection}{#2 (Today)}
		}{
			\phantomsection\addcontentsline{toc}{subsubsection}{#2}
		}
		\input{#1}
	}
}

\iffalse
	Different commands you can use with the \d command:

	d: day
	w: week
	m: month
	y: year

	Different kinds of arguments you can use with the \d command:

	-:    Numerical representation with no leading zeros;
	=:    Numerical representation with a leading space for single digit numbers;
	0:    Numerical representation with a leading zero for single digit numbers;
	t:    Textual representation;
	.:    Abbreviated textual representation.

	Examples:
	\d{d}-    ->    1, 2, 3, 4, 5, ...
	\d{d}=    ->     1,  2,  3,  4,  5, ...
	\d{d}0    ->    01, 02, 03, 04, 05, ...
	\d{d}t    ->    no output
	\d{d}.    ->    no output

	\d{w}-    ->    no output
	\d{w}=    ->    no output
	\d{w}0    ->    no output
	\d{w}t    ->    Monday, Tuesday, Wednesday, ...
	\d{w}.    ->    Mon, Tue, Wed, ...

	\d{m}-    ->    1, 2, 3, 4, 5, ...
	\d{m}=    ->     1,  2,  3,  4,  5, ...
	\d{m}0    ->    01, 02, 03, 04, 05, ...
	\d{m}t    ->    January, February, March, ...
	\d{m}.    ->    Jan, Feb, Mar, ...

	\d{y}-    ->    2022, 2023, 2024, 2025, ...
	\d{y}=    ->    2022, 2023, 2024, 2025, ...
	\d{y}0    ->    2022, 2023, 2024, 2025, ...
	\d{y}t    ->    no output
	\d{y}.    ->    no output
\fi

% Main document
\begin{document}
%%%%%%%%%%%%%%%%
%  Title Page  %
%%%%%%%%%%%%%%%%

\begin{center}
	\huge{Journal}\\[0.4em]
	\Large{Your Name}\\[0.2em]
	\emph{
		From August 1 2022 to
		\formatdate{\lastdate}{\d{m}t \d{d}- \d{y}-}
	}
\end{center}

%%%%%%%%%%%%%%%%%%%%%%%
%  Table of Contents  %
%%%%%%%%%%%%%%%%%%%%%%%

\tableofcontents
\newpage

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%  Iterate through all dates from the first date to the last date  %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\pgfcalendar{cal}{\firstdate}{\lastdate}{
	% Set some variables so I don't keep re-typing stuff
	\def\formatteddate{\d{y}0/\d{m}0/\d{d}0} % EXM: 2022/06/10
	\def\todayformatted{\d{y}0-\d{m}0-\d{d}0} % EXM: 2022-06-10

	\def\firstdayofyear{2022-01-01} % EXM: 2022-01-01
	\def\yeargoalsformat{./\d{y}0/goals.tex} % EXM: 2022/goals.tex

	\def\firstdayofmonth{\d{y}0-\d{m}0-01} % EXM: 2022-08-01
	\def\monthgoalsformat{./\d{y}0/\d{m}0/goals.tex} % EXM: 2022/01/goals.tex

	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%  Check if it's the first day of the year  %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

	\pgfcalendarifdate{\todayformatted}{equals=\firstdayofyear}{
		\noteday{Year \d{y}0}
		% Add the year to the table of contents
		{\Huge \d{y}0}
		\phantomsection\addcontentsline{toc}{section}{\d{y}0}%
		% Check if there's a file EXM: 2022/goals.tex
		\IfFileExists{\yeargoalsformat}{
			\newline
			\newline
			% Add the goals to the table of contents
			{\LARGE Goals for \d{y}0}
			\phantomsection\addcontentsline{toc}{subsection}{Goals for \textbf{\d{y}0}}
			\newline
			\newline
			\input{\yeargoalsformat}
			\newpage
		}{}
	}{}

	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%  Check if it's the first day of the month  %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

	\ifdate{equals=\firstdayofmonth}{
		\noteday{Month \d{m}t}
		% Check if there's a file EXM: 2022/07/goals.tex
		\IfFileExists{\monthgoalsformat}{
			% Add the month to the table of contents
			% \section*{\d{m}t}
			{\LARGE \d{m}t}
			\phantomsection\addcontentsline{toc}{subsection}{\d{m}t}
			\newline
			\newline
			% Add the goals to the table of contents
			{\Large Goals for \d{m}t}
			\phantomsection\addcontentsline{toc}{subsubsection}{Goals for \textbf{\d{m}t}}
			\newline
			\newline
			\input{\monthgoalsformat}
			\newpage
		}{}
	}{}

	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	%  Check if the note.tex file exists in the following example directory %
	%                       EXM: 2022/05/14/note.tex                        %
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

	\IfFileExists{./\formatteddate/note.tex}{
		\def\dayout{}
		\def\dayouttotable{}

		% Checking if it's the first day of the month
		\ifthenelse{\equal{\d{d}0}{\string 01}}{
			\def\dayout{\d{w}t the \d{d}-st of \d{m}t, \d{y}0}
			\def\dayouttotable{\d{w}t the \d{d}0st of \d{m}t, \d{y}0}
		}{
			% Checking if it's the second day of the month
			\ifthenelse{\equal{\d{d}0}{\string 02}}{
				\def\dayout{\d{w}t the \d{d}-nd of \d{m}t, \d{y}0}
				\def\dayouttotable{\d{w}t the \d{d}0nd of \d{m}t, \d{y}0}
			}{
				% Checking if it's the third day of the month
				\ifthenelse{\equal{\d{d}0}{\string 03}}{
					\def\dayout{\d{w}t the \d{d}-rd of \d{m}t, \d{y}0}
					\def\dayouttotable{\d{w}t the \d{d}0rd of \d{m}t, \d{y}0}
				}{
					\def\dayout{\d{w}t the \d{d}-th of \d{m}t, \d{y}0}
					\def\dayouttotable{\d{w}t the \d{d}0th of \d{m}t, \d{y}0}
				}
			}
		}

		\noteday{\dayout}

		\vspace*{1em}
		{\Large \dayout}
		\emptyentry{./\formatteddate/note.tex}{\dayouttotable}{\todayformatted}
		\begin{flushright}
			\IfFileExists{./\formatteddate/note.xopp}{\hfill \xournal}{\hfill \\ }
		\end{flushright}
		\newpage
	}{}
}
\end{document}