\documentclass[a4paper,12pt]{report}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{pdfpages}
\usepackage{amssymb,epsf}
\usepackage{float}
\usepackage{latexsym}
\usepackage{subcaption}
\usepackage{epstopdf}
\usepackage{tabularx}
\usepackage{graphicx,epsfig} % inserting images
\usepackage[top=3cm,right=4cm,bottom=3cm,left=3cm]{geometry} 
\usepackage{titlesec}
\usepackage{rotating}

\usepackage{threeparttable}
%\usepackage{fancyhdr}

\usepackage[numbers,sort&compress]{natbib}
%\usepackage[pagebackref=false,colorlinks,linkcolor=blue,citecolor=magenta]{hyperref} 


\usepackage{xepersian}
\defpersianfont\nastaliq[Scale=1.1]{XB Zar}
\settextfont[Scale=1.1]{XB Zar}%Zar}
\setdigitfont{Yas}
\renewcommand\bibname{منابع}

\makeatletter
\bidi@patchcmd{\@harfi}{آ}{الف}
{\typeout{Succeeded in changing `آ` into `الف`}}
{\typeout{Failed in changing `آ` into `الف`}}
\makeatother
\flushbottom

% ------------------------------------
\makeatletter
\renewcommand*\l@chapter[2]{%
  \ifnum \c@tocdepth >\m@ne
    \addpenalty{-\@highpenalty}%

    \vskip 1.0em \@plus\p@
    \setlength\@tempdima{4.6em}%
    \begingroup
      \parindent \z@ \if@RTL\leftskip\else\rightskip\fi \@pnumwidth
      \parfillskip -\@pnumwidth
      \leavevmode \bfseries
      \advance\if@RTL\rightskip\else\leftskip\fi\@tempdima
      \hskip -\if@RTL\rightskip\else\leftskip\fi
      #1\nobreak\leaders\hbox{$\m@th
        \mkern \@dotsep mu\hbox{.}\mkern \@dotsep
        mu$}\hfill \nobreak\hb@xt@\@pnumwidth{\hss #2}\par
      \penalty\@highpenalty
    \endgroup
  \fi}

  \renewcommand\tableofcontents{%
    \if@twocolumn
      \@restonecoltrue\onecolumn
    \else
      \@restonecolfalse
    \fi
    \centerline{\huge\bfseries\contentsname
        \@mkboth{%
           \MakeUppercase\contentsname}{\MakeUppercase\contentsname}}%
    \vskip 40\p@
    \@starttoc{toc}%
    \if@restonecol\twocolumn\fi
    }

    \renewcommand{\@starttoc}[1]{%
  \hboxR to \textwidth{عنوان \hfill صفحه} 
  \begingroup
    \makeatletter
    \@input{\jobname.#1}%
    \if@filesw
      \expandafter\newwrite\csname tf@#1\endcsname
      \immediate\openout \csname tf@#1\endcsname \jobname.#1\relax
    \fi
    \@nobreakfalse
  \endgroup}




   %----------------------------------------------------

\titleformat{\chapter}[display]
{\normalfont\LARGE\bfseries\centering}{}{20pt}{\LARGE}
\titlespacing{\chapter}{2pc}{1.4 cm}{1 cm}[2pc]
  %\titleformat*{\section}{\large\bfseries}
  %\titleformat*{\subsection}{\bfseries}
  %\include{jeld_info}
\renewcommand{\listfigurename}{فهرست نمودار‌ها}
%\renewcommand{\listtablename}{فهرست جدول‌ها}
\makeatletter
\def\@makeLTRfnmark{\hbox{\@textsuperscript{\latinfont\@thefnmark}}}
\renewcommand\@makefntext[1]{%
    \parindent 1em%
    \noindent
    \hb@xt@1.8em{\hss\if@RTL\@makefnmark\else\@makeLTRfnmark\fi}#1}
\makeatother
\begin{document}
\SepMark{-}
%\input{ch0}
\pagenumbering{alph}
%\include{cover_fa}
%\input{ch0}
%\newpage  
%\input{besmellah}
%\include{ezharnameh}
%\include{taeid}
\baselineskip 27pt
%\include{taghdim}
%\include{setayesh}
%\include{sepas}
%\baselineskip 32pt
%\include{abstract}
\tableofcontents
\listoftables
\listoffigures
\baselineskip 27pt
\clearpage
\pagenumbering{adadi}
\baselineskip 27pt 
\clearpage
\makeatletter
\renewcommand\thechapter{\@arabic\c@chapter}
\makeatother
\baselineskip 27pt
%\include{ref}
\baselineskip 27pt                 
%\include{abstract_en}
\baselineskip 27pt      
%\include{taeid-en-2}\label{key}
\baselineskip 27pt 
\clearpage 
\pagenumbering{arabic}}

\baselineskip 27pt
\appendix
\renewcommand{\chaptername}{پیوست}
\renewcommand{\thechapter}{\chaptername~\harfi{chapter}}
\baselineskip 27pt
\include{er}

\baselineskip 27pt                 
%\include{abstract_en}
\baselineskip 27pt      
%\include{taeid-en-2}\label{key}
\baselineskip 27pt 

\end{document}