#!/bin/bash

# Script rédigé par Pieds-Nus au février 2025 pour concaténer des plans pdf et insérer les numéros de page
# fournir en argument la liste des fichiers pdf à assembler, dans l'ordre.
# le résultat sera enregistré dans le dossier courant, sous le nom "output.pdf"
# 
# Dependencies :
# bash
# grep 
# mutool, from package mupdf-tools : https://mupdf.com/	
# a functionning texlive installation, for instance the texlive-base package in debian
# pdfjam (should be included in texlive-extra-utils, or can be retrieved here : https://ctan.org/pkg/pdfjam)
# eso-pic (should be included in texlive, or can be retrieved here : https://ctan.org/pkg/eso-pic)
# open-sans font (should be included in texlive-fonts-extra, or can be retrieved here : https://ctan.org/pkg/opensans)

pagecount=$(mutool pages $@ | grep -c "pagenum" )

echo "Page count: ${pagecount}"

pre="\documentclass[a3paper,landscape]{minimal}
\usepackage{eso-pic}
\usepackage[default,scale=1.35]{opensans}"

#edit the values in this line to adjust position of the page numbers : 
#cartouche AtelierPaysan : pagecommand="{\AddToShipoutPictureFG{\AtPageUpperLeft{\raisebox{-21.1mm}{\hspace{93.25mm}\colorbox{white}{\makebox[37.3mm][r]{\textcolor[gray]{0.5}{\thepage\}\raisebox{-0.35mm}{\strut}}}}}}}"
pagecommand="{\AddToShipoutPictureFG{\AtPageUpperLeft{\raisebox{-190mm}{\hspace{90mm}\colorbox{white}{\makebox[37.3mm][r]{\textcolor[gray]{0.5}{\thepage\}\raisebox{-0.35mm}{\strut}}}}}}}"

pdfjam --no-tidy --a3paper --landscape --preamble "${pre}" --pagecommand "${pagecommand}" -o outfile.pdf $@

dir="/tmp/$(ls -t /tmp/ | grep "pdfjam-*" | head -n 1)"
cd "${dir}"
sed -i -E "s/\\documentclass\[a3paper,landscape\]\{article\}/\\documentclass\[a3paper,landscape\]\{minimal\}/" a.tex
pdflatex -no-shell-escape a.tex 
cd -
mv "${dir}/a.pdf" outfile.pdf
mutool clean -gggg -l -zfism outfile.pdf outfile_clean.pdf

mupdf outfile_clean.pdf && rm -rf "${dir}"