#!/bin/sh

set -e

bootstrap_install() {
	install -dv "$destdir"
	install -dv "$bindir"
	install -dv "$libdir"
	install -dv "$docdir"
	install -d "$prefix/bin/"
	install -d "$prefix/share/applications/"
	if [ -f "./packages.list" ] ;then
		install -m 0644 "./packages.list" "$libdir"
	fi
	if [ -f "./dxvk-$dvver.tar.gz" ] ;then
		install -d "$libdir/dxvk/"
		echo "$dvver" >"$libdir/dxvk/version"
		chmod 0644 "$libdir/dxvk/version"
		tar xf ./dxvk-$dvver.tar.gz -C $libdir/dxvk/ --no-same-owner --strip-components=1 dxvk-$dvver/x32 dxvk-$dvver/x64
	fi
	install -m 0644 "./evesetup.shlib" "$libdir"
	install -m 0644 "./evelauncher-${elver}.tar.gz" "$libdir"
	install -m 0644 "./evelauncher.kwinrule" "$docdir"
	install -m 0644 "./evelauncher.lua" "$docdir"
	for cmd in backup launcher.sh regedit restore wine winecfg winetricks ;do
		cmd=eve$cmd
		if [ -f "./$cmd" ] ;then
			sed -i s,SETUPDIR=\"\",SETUPDIR=\"$destdir\", ./$cmd
			sed -i s,./evesetup.shlib,$libdir/evesetup.shlib, ./$cmd
			install "./$cmd" "$bindir/"
		else
			if [ "$cmd" = "everestore" ] ;then
				ln -s evebackup "$bindir/$cmd"
			else
				ln -s evewine "$bindir/$cmd"
			fi
		fi
		[ "$bindir" != "$prefix/bin" ] && ln -s "$bindir/$cmd" "$prefix/bin/$cmd"
		if [ ! "$cmd" = "evewine" ] ;then
			oexec=$(grep Exec= ./${cmd%.*}.desktop)
			sed -i s,$oexec,Exec=$prefix/bin/$cmd, ./${cmd%.*}.desktop
			install -m 0644 "./${cmd%.*}.desktop" "$prefix/share/applications/"
		fi
	done
	for icons in $(find . -type f -name '*.png') ;do
		install -D -m 0644 "$icons" "$prefix/share/${icons#*/}"
	done
	if [ -x $(which gtk-update-icon-cache) ] ;then
		if [ -f "${prefix}/share/icons/hicolor/icon-theme.cache" ] ;then
			gtk-update-icon-cache -t -f "${prefix}/share/icons/hicolor" 2>/dev/null
			chmod 0644 "${prefix}/share/icons/hicolor/icon-theme.cache"
		fi
	fi
}

bootstrap_remove() {
	for icons in $(find . -type f -name '*.png') ;do
		rm -f "$prefix/share/${icons#*/}"
	done
	for cmd in backup launcher.sh regedit restore wine winecfg winetricks ;do
		cmd=eve$cmd
		rm -fv "$prefix/bin/$cmd"
		if [ ! "$cmd" = "evewine" ] ;then
			rm -f "$prefix/share/applications/${cmd%.*}.desktop"
		fi
	done
	printf "\nRemove $destdir...\n"
	rm -rf "$destdir"
}

pkg_install() {
	set +e
	until [ -z "$req" ];do
		i=${req%% *}
		[ $($qrycmd $i >/dev/null; echo $?) -ne 0 ] && mreq="$mreq$i "
		req=${req#* }
	done
	set -e
	if [ ! -z "$mreq" ] ;then
		printf "#$distro\n$mreq\n" >packages.list
		printf "\n"
		$inscmd $mreq
	fi
}

check_req() {
	printf "\nChecking requirements...\n\n"
	case $distro in
		"Arch Linux"|"Manjaro Linux"|"EndeavourOS")
			qrycmd="pacman -Q"
			inscmd="pacman -S"
			req="lsof openssl p7zip qt5-translations qt5-webengine qt5-websockets vulkan-icd-loader "
			pkg_install
			;;
		"Fedora")
			qrycmd="rpm -q"
			inscmd="dnf install"
			req="lsof openssl-libs p7zip qt5-qttranslations qt5-qtwebengine qt5-qtwebsockets vulkan-loader "
			pkg_install
			;;
		*"buntu"|"Linux Mint"|"Pop!_OS"|"KDE neon"|"elementary OS"|"Zorin OS")
			qrycmd="dpkg-query -W -f='\${Status}'"
			inscmd="apt install"
			req="lsof openssl p7zip-full qttranslations5-l10n libqt5concurrent5 libqt5webengine5 libqt5webenginewidgets5 libqt5websockets5 vulkan-icd "
			pkg_install
			;;
		"openSUSE Leap"|"openSUSE Tumbleweed")
			qrycmd="rpm -q"
			inscmd="zypper install"
			req="lsof libopenssl1_1 p7zip-full libqt5-qttranslations libqt5-qtwebengine libQt5Concurrent5 libQt5WebSockets5 libvulkan1 "
			pkg_install
			;;
		*)
			req="7z lsof "
			until [ -z "$req" ];do
				i=${req%% *}
				[ $(which $i &>/dev/null; echo $?) -ne 0 ] && mreq="$mreq$i\n"
				req=${req#* }
			done
			tar xf evelauncher-$elver.tar.gz
			cd evelauncher/
			mreq="${mreq}$(LD_LIBRARY_PATH=$(pwd) ldd ./evelauncher | grep -i not | sed 's,\t,,;s,.so.*,,')\n"
			cd ../
			rm -rf evelauncher/
			if [ "$mreq" != "\n" ] ;then
				printf "\nFollowing requirements are missing:\n"
				printf "\n$mreq\n"
				read -p 'Install anyway? (y/N) ' key
				if [ "x$(echo $key | tr [:upper:] [:lower:])" != "xy" ] ;then
					printf "\nLeaving.\n\n"
					exit 0
				fi
			fi
			;;
	esac
}

prefix="/usr"
destdir="/opt/evesetup"
bindir="$destdir/bin"
libdir="$destdir/lib"
docdir="$destdir/doc"
elver=""
dvver=""
key=""

if [ $(id -u) -ne 0 ] ;then
	printf "\nEVE Online Launcher Setup need root permissions.\n\n"
	exit 0
fi

distro=$(sed -rn 's,^NAME=,,p' /etc/os-release 2>/dev/null | tr -d \")

if [ -d "$destdir" ] ;then
	printf "\n"
	read -p 'Remove EVE Online Launcher Setup? (Y/n) ' key
	if [ "x$(echo $key | tr [:upper:] [:lower:])" != "xn" ] ;then
		printf "\nRemoving...\n\n"
		bootstrap_remove
	fi
else
	printf "\n"
	read -p 'Install EVE Online Launcher Setup? (Y/n) ' key
	if [ "x$(echo $key | tr [:upper:] [:lower:])" != "xn" ] ;then
		printf "\nInstalling...\n"
		check_req
		printf "\n"
		bootstrap_install
		printf "\nYou can now start EVE Online Launcher and his Tools:\n\n"
		for cmd in *.desktop ;do
			oexec=$(sed -rn 's,^Exec=,,;s,.*/,,p' $cmd)
			[ ! "$oexec" = "evelauncher.sh" ] && printf " $oexec\t- $(sed -rn 's,^Comment=,,p' $cmd)\n"
		done
		printf "\n evelauncher.sh\t- EVE Online Launcher\n"
	fi
fi
printf "\nDone.\n\n"