#!/bin/sh
# 2011 Written by Mark Vejvoda <mark_vejvoda@hotmail.com>
# 2014 Rewritten by filux <heross(@@)o2.pl>
# Copyright (c) 2011-2015 under GNU GPL v3.0+
# ----------------------------------------------------------------------------
# If you want to have core files generated (for debugging purposes):
# ulimit -c unlimited
LANG=C

SCRIPTLOCATION="$(readlink -f "$0")"
GAMEDIR="$(dirname "$SCRIPTLOCATION")"
ARCHITECTURE="$(uname -m | tr '[A-Z]' '[a-z]')"
BugReportEngine="https://github.com/MegaGlest/megaglest-source/issues"
BugReportBoth="https://forum.megaglest.org/index.php?board=23.0"
# -------
# useful for mods
BugReportBoth2="$BugReportBoth"
BugReportData="https://github.com/MegaGlest/megaglest-data/issues"
EXC_BINARY="megaglest"
SHORT_GAME_NAME="megaglest"
# -------
LIBDIR="lib"; ExitStatus=0; LibsWarnings=""; IgnoredLibs=""
if [ ! -d "$GAMEDIR/$LIBDIR" ]; then mkdir "$GAMEDIR/$LIBDIR"; fi
if [ "$1" = "--tool-editor" ] || [ "$1" = "--tool-g3dviewer" ] || [ "$1" = "--tool-buginfo" ];
then OperatingMode="$1"; else OperatingMode="--game"; fi
BeginTime="$(date +"%s")"
if [ "$(which lsb_release 2>/dev/null)" != "" ]; then
    OS_INFO_P="$(which lsb_release) -d"
    OS_INFO="$($OS_INFO_P | awk -F ':[ \t]*' '{print $2}')"
fi

if [ "$OperatingMode" != "--tool-buginfo" ]; then
    if [ "$LDCONFIG" = "" ]; then
	if [ "$(which ldconfig 2>/dev/null)" != "" ]; then
	    LDCONFIG="$(which ldconfig 2>/dev/null)"; LDconfigType=1
	elif [ -x "/sbin/ldconfig" ]; then
	    LDCONFIG="/sbin/ldconfig"; LDconfigType=2
	else
	    echo 'ERROR: Could not find the "ldconfig" command.' >&2
	    echo 'Please re-run using: "LDCONFIG=/path/to/ldconfig '"$0" >&2
	    exit 1
	fi
    else
	LDconfigType=9
    fi
    LibsWarnings="$LibsWarnings
    ||    If for some reason you see an error related with library, then you should try install this library
    || in your linux. Hints with full names and with default versions of just detected missing libraries you
    || see below.
    || You can also perform mini update by launch '${SHORT_GAME_NAME}-mini-update.sh' script, which may solve tiny problems.
    || If it is other problem or after your tries it still doesn't work then please report a bug
    || here: '$BugReportEngine',
    || or here: '$BugReportBoth'."
    LibsWarnings="$LibsWarnings
    ||
    || Found LDCONFIG variable [$LDconfigType][$LDCONFIG]...
    || OS info. [$OS_INFO], Arch.[$ARCHITECTURE], Dir.[$GAMEDIR]"

    if [ "$ARCHITECTURE" = "x86_64" ]; then GrepPattern="x86[_-]64"
    else GrepPattern="$ARCHITECTURE"; fi
    LDCONFIG_P="$($LDCONFIG -p)"; ArchSortLibs="no"
    LDCONFIG_P_ARCH="$(echo "$LDCONFIG_P" | grep "$GrepPattern")"
    if [ "$LDCONFIG_P_ARCH" != "" ]; then
	LDCONFIG_P_R_ARCH="$(echo "$LDCONFIG_P" | grep -v "$GrepPattern")"
	ArchSortLibs="yes"
    fi
    if [ "$OperatingMode" = "--game" ]; then
	ldd_target="$GAMEDIR/$EXC_BINARY"
    else
	ldd_target="$GAMEDIR/$2"
    fi
    c_required_libs="$(ldd "$ldd_target")"

    hasSOlib() {
	if [ "$2" = "myarch" ]; then
	    if [ "$ArchSortLibs" = "yes" ]; then OS_libs_list="$LDCONFIG_P_ARCH"; else OS_libs_list="$LDCONFIG_P"; fi
	else
	    if [ "$ArchSortLibs" = "yes" ]; then OS_libs_list="$LDCONFIG_P_R_ARCH"; else OS_libs_list=""; fi
	fi
	if [ "$OS_libs_list" != "" ]; then
	    echo "$OS_libs_list" | grep -m 1 "[^_-]$1" | cut "-d>" -f2 | cut "-d " -f2
	fi
    }
    findMissingSO() {
	SO_WANTED_LIB="$1"; SO_WANTED_LIB2="$2"; SO_LIB_PATTERN="$3"
	SO_LINKED_LIB="$GAMEDIR/$LIBDIR/$SO_WANTED_LIB2"
	hasSO="$(hasSOlib "$SO_LIB_PATTERN" "myarch")"; CommonPart="no"
	if [ "$hasSO" != "" ]; then
	    CommonPart="yes"
	elif [ "$SO_WANTED_LIB" = "$SO_LIB_PATTERN" ] && [ ! -h "$SO_LINKED_LIB" ] && [ -e "$SO_LINKED_LIB" ]; then
	    LibsWarnings="$LibsWarnings
	    ||- default library [$SO_WANTED_LIB2] is missing in your OS, using embedded library."
	    return 0
	else
	    hasSO="$(hasSOlib "$SO_LIB_PATTERN")"
	    if [ "$ArchSortLibs" = "yes" ] && [ "$hasSO" != "" ]; then
		CommonPart="yes"
	    else
		if [ "$SO_WANTED_LIB" = "$SO_LIB_PATTERN" ]; then
		    LibsWarnings="$LibsWarnings
		    ||- default library [$SO_WANTED_LIB2] is missing in your OS, attempting to find and link to different version if is available..."
		fi
		if [ "$4" != "no" ]; then
		    LibsWarnings="$LibsWarnings
		    ||  > not found !"
		fi
		return 1
	    fi
	fi
	if [ "$CommonPart" = "yes" ]; then
	    if [ "$SO_WANTED_LIB" != "$SO_LIB_PATTERN" ]; then
		LibsWarnings="$LibsWarnings
		||  new library link [.../$LIBDIR/$SO_WANTED_LIB2] pointed to [$hasSO]."
		ln -f -s "$hasSO" "$SO_LINKED_LIB"
	    else
		if [ -e "$SO_LINKED_LIB" ]; then rm -f "$SO_LINKED_LIB"; fi
		if [ "$(echo "$c_required_libs" | grep "$SO_LIB_PATTERN[ \t]*=>[ \t]*not found")" != "" ]; then
		    #rare exception
		    LibsWarnings="$LibsWarnings
		    ||- default library: [$SO_WANTED_LIB2] is missing in your OS, attempting to find and link to different version if is available...
		    ||  > not found !"
		fi
	    fi
	    return 0
	fi
    }

    checkLibsStatus() {
	if [ "$1" != "" ]; then
	    list_of_libs="$(echo "$1" | sed -e 's|\([^\]\)\.|\1\\.|g' -e 's|\[num\]|[0-9]\\+|g')"
	    for var in $list_of_libs; do
		patterns="$(echo "$var" | sed -e 's|^ */||' -e 's|/| |g' -e 's/| /|/')"
		patterns_num="$(echo "$patterns" | wc -w)"
		wanted_lib="$(echo "$patterns" | awk '{print $1}')"; i=2
		wanted_lib2="$(echo "$wanted_lib" | sed 's/\\//g')";
		last_pattern="$(echo "$patterns" | awk '{print $(NF-1)}')"
		if [ "$(echo "$c_required_libs" | grep "[^_-]$last_pattern")" != "" ]; then
		    for var2 in $patterns; do
			if [ "$var2" = "|" ]; then break; fi
			lib_pattern="$(echo "$var" | awk -F '/' -v ii="$i" '{print $ii}')"
			if [ "$i" -lt "$patterns_num" ]; then end_w="no"; else end_w="yes"; fi
			findMissingSO "$wanted_lib" "$wanted_lib2" "$lib_pattern" "$end_w"
			if [ "$?" -eq "0" ]; then break; else i=$((i + 1)); fi
		    done
		else
		    IgnoredLibs="$IgnoredLibs $wanted_lib2"
		fi
	    done
	fi
    }

    # Each line /.../.../|/ .
    # First entry libs_list="...\n...\n..." ,
    # each next libs_list="$libs_list\n...\n..." .
    # First word should be original name, in any other you can use [0-9] what mean "any digit",
    # or [num] what mean "any number with one or more digits".
    # Last word should have length at least 6 chars, but use longer if string is too much common.

    # ignored: linux-vdso.so*, linux-gate.so*, ld-linux-*.so*, libpthread.so*, libpulsecommon-*.so, libresolv.so*
    libs_list="/libSDL2-2.0.so.0/libSDL2-2.[num].so/libSDL2-[0-9].[num].so/libSDL2-/|/
    /libGLU.so.1/libGLU.so/|/
    /libGL.so.1/libGL.so/|/
    /libX11.so.6/libX11.so/|/
    /libidn.so.11/libidn.so/|/
    /librtmp.so.0/librtmp.so/|/
    /libgcrypt.so.11/libgcrypt.so.1[0-9]/libgcrypt.so/libgcrypt/|/
    /libgnutls.so.26/libgnutls.so.2[0-9]/libgnutls.so/libgnutls/|/
    /libgssapi_krb5.so.2/libgssapi_krb[0-9].so/libgssapi_krb[num].so/libgssapi_krb/|/
    /liblber-2.4.so.2/liblber-2.[num].so/liblber-[0-9].[num].so/liblber-/liblber/|/
    /libldap_r-2.4.so.2/libldap_r-2.[num].so/libldap_r-[0-9].[num].so/libldap_r-/libldap_r/|/
    /libz.so.1/libz.so/|/
    /libdl.so.2/libdl.so/|/
    /libfontconfig.so.1/libfontconfig.so/libfontconfig/|/
    /libfreetype.so.6/libfreetype.so/|/
    /libfribidi.so.0/libfribidi.so/libfribidi/|/
    /libm.so.6/libm.so/|/
    /libstdc++.so.6/libstdc++.so/|/
    /libgcc_s.so.1/libgcc_s.so/|/
    /libc.so.6/libc.so/|/
    /libasound.so.2/libasound.so/|/
    /libpulse-simple.so.0/libpulse-simple.so/libpulse-simple/|/
    /libpulse.so.0/libpulse.so/|/
    /libXext.so.6/libXext.so/libXext/|/
    /libXcursor.so.1/libXcursor.so/libXcursor/|/
    /libXinerama.so.1/libXinerama.so/libXinerama/|/
    /libXi.so.6/libXi.so/|/
    /libXrandr.so.2/libXrandr.so/libXrandr/|/
    /libXss.so.1/libXss.so/|/
    /libXxf86vm.so.1/libXxf86vm.so/libXxf86vm/|/
    /libwayland-egl.so.1/libwayland-egl.so/libwayland-egl/|/
    /libwayland-client.so.0/libwayland-client.so/libwayland-client/|/
    /libwayland-cursor.so.0/libwayland-cursor.so/libwayland-cursor/|/
    /libxkbcommon.so.0/libxkbcommon.so/libxkbcommon/|/
    /librt.so.1/librt.so/|/
    /libglapi.so.0/libglapi.so/libglapi/|/
    /libXdamage.so.1/libXdamage.so/libXdamage/|/
    /libXfixes.so.3/libXfixes.so/libXfixes/|/
    /libX11-xcb.so.1/libX11-xcb.so/libX11-xcb/|/
    /libxcb-glx.so.0/libxcb-glx.so/libxcb-glx/|/
    /libxcb-dri2.so.0/libxcb-dri2.so/libxcb-dri2/|/
    /libxcb-dri3.so.0/libxcb-dri3.so/libxcb-dri3/|/
    /libxcb-present.so.0/libxcb-present.so/libxcb-present/|/
    /libxcb-sync.so.1/libxcb-sync.so/libxcb-sync/|/
    /libxcb.so.1/libxcb.so/|/
    /libxshmfence.so.1/libxshmfence.so/libxshmfence/|/
    /libdrm.so.2/libdrm.so/|/
    /libgpg-error.so.0/libgpg-error.so/libgpg-error/|/
    /libtasn1.so.6/libtasn1.so/libtasn[num].so/libtasn[0-9]/libtasn/|/
    /libp11-kit.so.0/libp11-kit.so/libp11-kit/|/
    /libkrb5.so.3/libkrb[0-9].so.[num]/libkrb[num].so/|/
    /libk5crypto.so.3/libk[0-9]crypto.so/libk[num]crypto/|/
    /libcom_err.so.2/libcom_err.so/libcom_err/|/
    /libkrb5support.so.0/libkrb[0-9]support.so/libkrb[num]support/|/
    /libsasl2.so.2/libsasl[0-9].so/libsasl/|/
    /libgssapi.so.3/libgssapi.so/|/
    /libexpat.so.1/libexpat.so/|/
    /libpng12.so.0/libpng1[0-9].so/libpng[num].so/libpng[0-9]/|/
    /libjson-c.so.2/libjson-c.so/libjson-c/|/
    /libdbus-1.so.3/libdbus-[0-9].so/libdbus-[num]/|/
    /libXrender.so.1/libXrender.so/libXrender/|/
    /libffi.so.6/libffi.so/|/
    /libXau.so.6/libXau.so/|/
    /libXdmcp.so.6/libXdmcp.so/libXdmcp/|/
    /libkeyutils.so.1/libkeyutils.so/libkeyutils/|/
    /libheimntlm.so.0/libheimntlm.so/libheimntlm/|/
    /libkrb5.so.26/libkrb[0-9].so.[num]/libkrb[num].so/|/
    /libasn1.so.8/libasn1.so/libasn[num].so/|/
    /libhcrypto.so.4/libhcrypto.so/libhcrypto/|/
    /libroken.so.18/libroken.so/libroken/|/
    /libwrap.so.0/libwrap.so/|/
    /libsndfile.so.1/libsndfile.so/|/
    /libasyncns.so.0/libasyncns.so/libasyncns/|/
    /libwind.so.0/libwind.so/|/
    /libheimbase.so.1/libheimbase.so/libheimbase/|/
    /libhx509.so.5/libhx509.so/libhx509/|/
    /libsqlite3.so.0/libsqlite3.so/|/
    /libcrypt.so.1/libcrypt.so/|/
    /libnsl.so.1/libnsl.so/|/
    /libFLAC.so.8/libFLAC.so/|/
    /libvorbisenc.so.2/libvorbisenc.so/libvorbisenc/|/
    /libvorbis.so.0/libvorbis.so/|/
    /libogg.so.0/libogg.so/|/
    /libGLEW.so.1.10/libGLEW.so.1.[num]/libGLEW.so/|/"
    if [ "$OperatingMode" = "--game" ]; then
	libs_list="$libs_list
	/libopenal.so.1/libopenal.so/libopenal/|/
	/libvlccore.so.7/libvlccore.so/libvlccore/|/
	/libvlc.so.5/libvlc.so/|/"
    else
	libs_list="$libs_list
	/libwx_gtk2u_core-3.0.so.0/libwx_gtk2u_core-3.[num].so/|/
	/libwx_baseu-3.0.so.0/libwx_baseu-3.[num].so/|/
	/libwx_gtk2u_gl-3.0.so.0/libwx_gtk2u_gl-3.[num].so/|/
	/libgtk-x11-2.0.so.0/libgtk-x11-2.[num].so/libgtk-x11-[0-9].[num].so/libgtk-x11-[0-9]/libgtk-x11/|/
	/libgdk-x11-2.0.so.0/libgdk-x11-2.[num].so/libgdk-x11-[0-9].[num].so/libgdk-x11-[0-9]/libgdk-x11/|/
	/libpangocairo-1.0.so.0/libpangocairo-1.[num].so/libpangocairo-[0-9].[num].so/libpangocairo-[0-9]/libpangocairo/|/
	/libgdk_pixbuf-2.0.so.0/libgdk_pixbuf-2.[num].so/libgdk_pixbuf-[0-9].[num].so/libgdk_pixbuf-[0-9]/|/
	/libcairo.so.2/libcairo.so/|/
	/libpango-1.0.so.0/libpango-1.[num].so/libpango-[0-9].[num].so/libpango-[0-9]/libpango-/|/
	/libgobject-2.0.so.0/libgobject-2.[num].so/libgobject-[0-9].[num].so/libgobject-[0-9]/libgobject/|/
	/libglib-2.0.so.0/libglib-2.[num].so/libglib-[0-9].[num].so/libglib-[0-9]/libglib-/|/
	/libSM.so.6/libSM.so/|/
	/libjpeg.so.8/libjpeg.so.[0-9]/libjpeg.so/|/
	/libtiff.so.5/libtiff.so/|/
	/libgmodule-2.0.so.0/libgmodule-2.[num].so/libgmodule-[0-9].[num].so/libgmodule-[0-9]/libgmodule/|/
	/libatk-1.0.so.0/libatk-1.[num].so/libatk-[0-9].[num].so/libatk-[0-9]/|/
	/libgio-2.0.so.0/libgio-2.[num].so/libgio-[0-9].[num].so/libgio-[0-9]/|/
	/libpangoft2-1.0.so.0/libpangoft2-1.[num].so/libpangoft2-[0-9]/libpangoft2-/libpangoft/|/
	/libXcomposite.so.1/libXcomposite.so/libXcomposite/|/
	/libpixman-1.so.0/libpixman-1.so/libpixman-[0-9].so/libpixman/|/
	/libxcb-shm.so.0/libxcb-shm.so/libxcb-shm/|/
	/libxcb-render.so.0/libxcb-render.so/|/
	/libthai.so.0/libthai.so/|/
	/libpcre.so.3/libpcre.so/|/
	/libICE.so.6/libICE.so/|/
	/libuuid.so.1/libuuid.so/|/
	/liblzma.so.5/liblzma.so/|/
	/libjbig.so.0/libjbig.so/|/
	/libselinux.so.1/libselinux.so/|/
	/libharfbuzz.so.0/libharfbuzz.so/|/
	/libdatrie.so.1/libdatrie.so/|/
	/libgraphite2.so.3/libgraphite2.so/libgraphite[0-9].so/|/"
    fi
    #if [ "$ARCHITECTURE" = "x86_64" ]; then
    #else
    #fi

    checkLibsStatus "$libs_list"
    if [ -f "$GAMEDIR/${SHORT_GAME_NAME}-configure-desktop.sh" ]; then
	"$GAMEDIR/${SHORT_GAME_NAME}-configure-desktop.sh"
	rm -f "$GAMEDIR/${SHORT_GAME_NAME}-configure-desktop.sh"
    fi
else
    ExitStatus="$2"
    LibsWarnings="$3"
    BeginTime="$4"
    ErrorTime="$5"
    BinaryToCheck="$6"
fi
if [ "$OperatingMode" = "--game" ]; then
    if [ -d "$GAMEDIR/$LIBDIR" ]; then
	export LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}${GAMEDIR}/${LIBDIR}"
	if [ -d "$GAMEDIR/$LIBDIR/vlc" ]; then
		export VLC_PLUGIN_PATH="${GAMEDIR}/${LIBDIR}/vlc"
	fi
    fi
    "$GAMEDIR/$EXC_BINARY" $@
    ExitStatus="$?"

    BinaryToCheck="$EXC_BINARY"
    ErrorTime="$(date +"%s")"
fi
if [ "$ExitStatus" -ne "0" ] || [ "$OperatingMode" = "--tool-editor" ] || [ "$OperatingMode" = "--tool-g3dviewer" ]; then
    if [ "$(echo "$@" | grep "^[ \t]*--help[ \t]*$")" = "" ] && [ "$(echo "$@" | grep "^[ \t]*-h[ \t]*$")" = "" ]; then
	DiffTime="$(($ErrorTime-$BeginTime))"
	if [ "$DiffTime" -le "15" ] && [ -e "$GAMEDIR/$BinaryToCheck" ] && [ -x "$GAMEDIR/$BinaryToCheck" ]; then
	    echo "$LibsWarnings" | sed 's/^[\t ]*||//g' >&2; echo
	    if [ "$IgnoredLibs" != "" ]; then
		echo "... and as information useful only for game developers, List of ignored libs:" >&2
		echo "$IgnoredLibs" >&2; echo
	    fi
	else
	    BugReportInfo="$BugReportInfo
	    || OS info. [$OS_INFO], Arch.[$ARCHITECTURE], Dir.[$GAMEDIR]
	    ||
	    || If you see an unknown error then please report a bug
	    || here: '$BugReportBoth2',
	    || or if you think that bug is related with game engine here:
	    || '$BugReportEngine'"
	    if [ "$BugReportData" != "" ] && [ "$BugReportData" != "$BugReportBoth2" ] && [ "$BugReportData" != "$BugReportEngine" ] ; then
		BugReportInfo="$BugReportInfo,
		|| or if you think that bug is related with game data here:
		|| '$BugReportData'."
	    else
		BugReportInfo="$BugReportInfo."
	    fi
	    echo "$BugReportInfo" | sed 's/^[\t ]*||//g' >&2; echo
	fi
	#if [ "$OperatingMode" = "--game" ] && [ -f "$GAMEDIR/${SHORT_GAME_NAME}-mini-update.sh" ]; then
	    #echo "... attempt to perform mini update, which may solve tiny problems:" >&2
	    #"$GAMEDIR/${SHORT_GAME_NAME}-mini-update.sh"
	#fi
    fi
fi
exit "$ExitStatus"