TERMUX_PKG_HOMEPAGE=https://www.tug.org/texlive/
TERMUX_PKG_DESCRIPTION="TeX Live is a distribution of the TeX typesetting system."
TERMUX_PKG_MAINTAINER="Henrik Grimler @Grimler91"
_MAJOR_VERSION=20180414
TERMUX_PKG_VERSION=${_MAJOR_VERSION}
TERMUX_PKG_SRCURL=("ftp://ftp.tug.org/texlive/historic/${TERMUX_PKG_VERSION:0:4}/"\
{"texlive-$_MAJOR_VERSION-texmf.tar.xz",\
"texlive-$_MAJOR_VERSION-extra.tar.xz",\
"install-tl-unx.tar.gz"})
TERMUX_PKG_SHA256=("bae2fa05ea1858b489f8138bea855c6d65829cf595c1fb219c5d65f4fe8b1fad"
"5b4397854723405f20df7172e73a04cee2d3ab712f78b064a7f523d6ab9f0329"
"82c13110852af162c4c5ef1579fa2f4f51c2040850ec02fb7f97497da45eb446")
TERMUX_PKG_DEPENDS="perl, texlive-bin (>= 20180414)"
TERMUX_PKG_CONFLICTS="texlive (<< 20170524-5), texlive-bin (<< 20180414)"
TERMUX_PKG_RECOMMENDS="texlive-tlmgr"
TERMUX_PKG_FOLDERNAME=("texlive-$_MAJOR_VERSION-texmf"
"texlive-$_MAJOR_VERSION-extra"
"install-tl-$_MAJOR_VERSION")
TL_FILE_LISTS=("texlive-texmf.list"
"texlive-extra.list"
"install-tl.list")
TERMUX_PKG_PLATFORM_INDEPENDENT=yes

TL_ROOT=$TERMUX_PREFIX/share/texlive
TL_BINDIR=$TERMUX_PREFIX/bin

termux_step_extract_package() {
	mkdir -p "$TERMUX_PKG_SRCDIR"
	
	cd "$TERMUX_PKG_TMPDIR"
	for index in $(seq 0 2); do
		local filename
		filename=$(basename "${TERMUX_PKG_SRCURL[$index]}")
		local file="$TERMUX_PKG_CACHEDIR/$filename"
		termux_download "${TERMUX_PKG_SRCURL[$index]}" "$file" "${TERMUX_PKG_SHA256[$index]}"
		
		folder=${TERMUX_PKG_FOLDERNAME[$index]}
		
		rm -Rf $folder
		echo "Extracting files listed in ${TL_FILE_LISTS[$index]} from $folder"
		tar xf "$file" $(paste -d'\0' <(for i in $(seq 1 $( wc -l < $TERMUX_PKG_BUILDER_DIR/${TL_FILE_LISTS[$index]} )); do echo ${TERMUX_PKG_FOLDERNAME[$index]}/; done ) $TERMUX_PKG_BUILDER_DIR/${TL_FILE_LISTS[$index]} )
	done
	cp -r ${TERMUX_PKG_FOLDERNAME[@]} "$TERMUX_PKG_SRCDIR"
}

termux_step_make() {
	for index in $( seq 0 2 ); do
		cp -r $TERMUX_PKG_SRCDIR/${TERMUX_PKG_FOLDERNAME[$index]}/* $TL_ROOT/
	done
	
	mkdir -p $TL_ROOT/{tlpkg/{backups,tlpobj},texmf-var/web2c}
	cp $TERMUX_PKG_BUILDER_DIR/texlive.tlpdb $TL_ROOT/tlpkg/
	
	perl -I$TL_ROOT/tlpkg/ $TL_ROOT/texmf-dist/scripts/texlive/mktexlsr.pl $TL_ROOT/texmf-dist

	# Replace tlmgr link with a small wrapper that prevents error on "tlmgr update --self"
	rm -rf $TL_BINDIR/tlmgr
	ln -sf ../share/texlive/texmf-dist/scripts/texlive/tlmgr.pl $TL_BINDIR/tlmgr.ln
	echo "#!$TERMUX_PREFIX/bin/sh" > $TL_BINDIR/tlmgr
	echo "termux-fix-shebang $TL_ROOT/texmf-dist/scripts/texlive/tlmgr.pl" >> $TL_BINDIR/tlmgr
	echo "sed -i 's%\`kpsewhich -var-value=SELFAUTOPARENT\`);%\`kpsewhich -var-value=TEXMFROOT\`);%g' $TL_ROOT/texmf-dist/scripts/texlive/tlmgr.pl" >> $TL_BINDIR/tlmgr
	echo "sed -i 's%TEXMFROOT = \$SELFAUTOPARENT%TEXMFROOT = \$SELFAUTODIR/share/texlive%gb' $TL_ROOT/texmf-dist/web2c/texmf.cnf" >> $TL_BINDIR/tlmgr
	echo "sed -E -i '"'s@`/bin/sh@`'$TERMUX_PREFIX"/bin/sh@g' ${TL_ROOT}/tlpkg/TeXLive/TLUtils.pm" >> $TL_BINDIR/tlmgr
	echo 'tlmgr.ln "$@"' >> $TL_BINDIR/tlmgr
	chmod 0744 $TL_BINDIR/tlmgr
}

termux_step_create_debscripts () {
	# Clean texlive's folder if needed (run on upgrade)
	echo "#!$TERMUX_PREFIX/bin/bash" > preinst
	echo "if [ -d $TERMUX_PREFIX/opt/texlive ]; then echo 'Removing residual files from old version of TeX Live for Termux'; rm -rf $PREFIX/opt/texlive; fi" >> preinst
	echo "exit 0" >> preinst
	chmod 0755 preinst
	
	echo "#!$TERMUX_PREFIX/bin/bash" > postinst
	echo "mkdir -p $TL_ROOT/{tlpkg/{backups,tlpobj},texmf-var/{web2c,tex/generic/config}}" >> postinst
	echo "export TMPDIR=$TERMUX_PREFIX/tmp" >> postinst
	echo "echo Updating tlmgr" >> postinst
	echo "tlmgr update --self" >> postinst
	echo "echo Generating language files and setting up symlinks" >> postinst
	echo "tlmgr -q generate language" >> postinst
	echo "mktexlsr $TL_ROOT/texmf-var" >> postinst
	echo "texlinks" >> postinst
	echo "echo ''" >> postinst
	echo "echo Welcome to TeX Live!" >> postinst
	echo "echo ''" >> postinst
	echo "echo 'TeX Live is a joint project of the TeX user groups around the world;'" >> postinst
	echo "echo 'please consider supporting it by joining the group best for you.'" >> postinst
	echo "echo 'The list of groups is available on the web at http://tug.org/usergroups.html.'" >> postinst
	echo "exit 0" >> postinst
	chmod 0755 postinst

	# Remove all files installed through tlmgr on removal
	echo "#!$TERMUX_PREFIX/bin/bash" > prerm
	echo 'if [ $1 != "remove" ]; then exit 0; fi' >> prerm
	echo "echo Running texlinks --unlink" >> prerm
	echo "texlinks --unlink" >> prerm
	echo "echo Removing texmf-dist" >> prerm
	echo "rm -rf $TL_ROOT/texmf-dist" >> prerm
	echo "echo Removing texmf-var and tlpkg" >> prerm
	echo "rm -rf $TL_ROOT/{texmf-var,tlpkg/{texlive.tlpdb.*,tlpobj,backups}}" >> prerm
	echo "exit 0" >> prerm
	chmod 0755 prerm
}

# Files to rm, first from texlive-$_MAJOR_VERSION-extra and then from install-tl-unx
TERMUX_PKG_RM_AFTER_INSTALL="
share/texlive/README
share/texlive/README.usergroups
share/texlive/autorun.inf
share/texlive/doc.html
share/texlive/index.html
share/texlive/install-tl
share/texlive/install-tl-advanced.bat
share/texlive/install-tl-windows.bat
share/texlive/readme-html.dir/readme.ja.html
share/texlive/readme-html.dir/readme.ru.html
share/texlive/readme-html.dir/readme.zh-cn.html
share/texlive/readme-html.dir/readme.it.html
share/texlive/readme-html.dir/readme.es.html
share/texlive/readme-html.dir/readme.pl.html
share/texlive/readme-html.dir/readme.de.html
share/texlive/readme-html.dir/readme.fr.html
share/texlive/readme-html.dir/readme.sr.html
share/texlive/readme-html.dir/readme.pt-br.html
share/texlive/readme-html.dir/readme.en.html
share/texlive/readme-html.dir/readme.cs.html
share/texlive/readme-txt.dir/README.RU-koi8
share/texlive/readme-txt.dir/README.EN
share/texlive/readme-txt.dir/README.FR
share/texlive/readme-txt.dir/README.SK-il2
share/texlive/readme-txt.dir/README.SK-ascii
share/texlive/readme-txt.dir/README.RU
share/texlive/readme-txt.dir/README.IT
share/texlive/readme-txt.dir/README.CS
share/texlive/readme-txt.dir/README.JA
share/texlive/readme-txt.dir/README.ES
share/texlive/readme-txt.dir/README.ZH-CN
share/texlive/readme-txt.dir/README.DE
share/texlive/readme-txt.dir/README.PL
share/texlive/readme-txt.dir/README.SK-cp1250
share/texlive/readme-txt.dir/README.SR
share/texlive/readme-txt.dir/README.PT-BR
share/texlive/readme-txt.dir/README.RU-cp1251
share/texlive/tl-tray-menu.exe
share/texlive/tlpkg/tlpostcode/xetex.pl
share/texlive/tlpkg/tlpostcode/xetex/conf/fonts.conf
share/texlive/tlpkg/tlpostcode/xetex/conf/fonts.dtd
share/texlive/tlpkg/tlpostcode/xetex/conf/conf.d/51-local.conf
share/texlive/tlpkg/tlpostcode/xetex/cache/readme.txt
share/texlive/tlpkg/tlpostcode/ptex2pdf-tlpost.pl
share/texlive/texmf-dist/web2c/texmf.cnf
share/texlive/texmf-dist/scripts/texlive/fmtutil-user.sh
share/texlive/texmf-dist/scripts/texlive/rungs.tlu
share/texlive/texmf-dist/scripts/texlive/updmap-user.sh"