#!/bin/sh

# Directory
prefix=@prefix@
datarootdir=@datarootdir@
datadir=@datadir@
exec_prefix=@exec_prefix@
libdir=@libdir@
pluginsdir=${libdir}/vine-rpm-helper

# Enable NLS
export TEXTDOMAIN=vine-rpm-helper
export TEXTDOMAINDIR=@localedir@

. gettext.sh

MYNAME=`basename $0`
MYVERSION=@PACKAGE_VERSION@

#
# Usage
#
print_usage()
{
	echo "`eval_gettext "\\\${MYNAME} download software package and create spec file template."`"
	echo
	echo "`eval_gettext "Usage: \\\${MYNAME} [OPTION]... ARCHIVE"`"
	echo
	echo "`eval_gettext "      --pkgname=NAME        overwrite package name"`"
	echo "`eval_gettext "      --pkgversion=VERSION  overwrite package version"`"
	echo "`eval_gettext "      --without-prefix      do not add prefix based package type"`"
	echo "`eval_gettext "      --help                display help and exit"`"
	echo "`eval_gettext "      --version             output version information and exit"`"
}

#
# Version
#
print_version()
{
	echo "`eval_gettext "\\\${MYNAME} \\\${MYVERSION}"`"
	echo
	echo "`eval_gettext "Copyright (C) 2011-2014 Project Vine."`"
	echo "`eval_gettext "This is free software; see the source for copying conditions.  There is NO"`"
	echo "`eval_gettext "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."`"
	echo
	echo "`eval_gettext "Written by Yasumichi Akahoshi <yasumichi@vinelinux.org>"`"
}

#
# remove old directory
#
RemoveOldDir()
{
	if [ -n "${PKGDIR}" ]; then
		rm -rf ${BUILDDIR}/${PKGDIR}
	fi
}

#
# check documentation
#
CheckDocumentation()
{
	DOCFILES=
	for FILE in AUTHORS COPYING ChangeLog Changes HACKING LICENSE MAINTAINERS NEWS README THANKS TODO
	do
		if [ -f ${BUILDDIR}/${PKGDIR}/${FILE} ]; then
			echo "`eval_gettext "Found documentation: \\\${FILE}"`"
			DOCFILES="${DOCFILES} ${FILE}"
		fi
	done
}

#
# check gettextize
#
CheckGettexize()
{
	if [ -d ${BUILDDIR}/${PKGDIR}/po ];then
		GETTEXTIZE=yes
	else
		GETTEXTIZE=no
	fi
}

#
# check license
#
CheckLicense()
{
	LICENSE=
	if [ -f ${BUILDDIR}/${PKGDIR}/COPYING ]; then
		MD5SUM=`md5sum ${BUILDDIR}/${PKGDIR}/COPYING`
		LICENSE=`grep ${MD5SUM} @PKGDATADIR@/licences-md5sum.dat | cut -f2`
	elif [ "${PKGTYPE}" = "Python" -a -f ${BUILDDIR}/${PKGDIR}/PKG-INFO ]; then
		LICENSE=`grep 'License:' ${BUILDDIR}/${PKGDIR}/PKG-INFO | sed -e 's/License: *//'`
	elif [ "${PKGTYPE}" = "Perl" ]; then
		LICENSE="Artistic or GPL"
	fi

	if [ "x${LICENSE}" = "x" ]; then
		LICENSE="FIXEME"
	else
		echo "`eval_gettext "Detect License: \\\${LICENSE}"`"
	fi
}

#
# check package type
#
CheckPkgType()
{
	while read line
	do
		CHKFILE=`echo ${line} | cut -d',' -f1`
		PKGTYPE=`echo ${line} | cut -d',' -f2`
		if [ "x${WITHOUT_PREFIX}" != "xyes" ]; then
			PKG_PREFIX=`echo ${line} | cut -d',' -f3`
		fi
		if [ -f ${BUILDDIR}/${PKGDIR}/${CHKFILE} ]; then
			NAME=${PKG_PREFIX}${PKGNAME}
			break
		fi
		PKGTYPE=
	done < @PKGDATADIR@/package-types.dat

	# Unknown package type
	if [ "x${PKGTYPE}" = "x" ]; then
		echo "`eval_gettext "Unknown package type."`" 1>&2
		exit 1
	fi

	echo "`eval_gettext "Detect package type is \\\${PKGTYPE}."`"

	# replace SOURCE
	if [ ${NAME} = ${PKGNAME} ]; then
		SOURCE0=`echo ${SOURCE0} | sed -e "s/${PKGNAME}/%{name}/g" -e "s/${PKGVERSION}/%{version}/g"`
	else
		# make symbolic link
		LINKTARGET=$(dirname `rpm -E '%_sourcedir'`)/`echo ${NAME} | sed -e "s/%{pkgname}/${PKGNAME}/"`
		if [ ! -r ${LINKTARGET} ]; then
			ln -sv ${SOURCEDIR} ${LINKTARGET}
		fi
		SOURCE0=`echo ${SOURCE0} | sed -e "s/${PKGNAME}/%{pkgname}/g" -e "s/${PKGVERSION}/%{version}/g"`
	fi
}

#
# check package
#
CheckPackage()
{
	if [ ! -f ${PKGSOURCE} ]; then
		echo "`eval_gettext "Can't find \\\${PKGSOURCE}"`" 1>&2
		exit
	fi

	PKGDIR=`eval ${LIST_CMD} ${PKGSOURCE} ${ADD_OPT} | head -1 | cut -d'/' -f1`
	if [ -z "${PKGDIR}" ]; then
		echo "`eval_gettext "\\\${PKGSOURCE} is invalid archive."`" 1>&2
		file ${PKGSOURCE} 1>&2
		exit 1
	fi

	RemoveOldDir
	if [ ! -d ${BUILDDIR} ]; then
		mkdir -pv ${BUILDDIR}
	fi
	(cd ${BUILDDIR} && eval ${EXT_CMD} ${PKGSOURCE} ${ADD_OPT})

	echo "`eval_gettext "Extracted package to \\\${BUILDDIR}/\\\${PKGDIR}"`"
	CheckPkgType
	CheckDocumentation
	CheckGettexize
	CheckLicense
}

#
# check scheme
#
CheckScheme()
{
	case ${ARCHIVE} in
		http://* | https://* | ftp://*)
			if wget -P ${SOURCEDIR} -nc ${ARCHIVE} ;then	# download
				SOURCE0=${ARCHIVE}
			else
				exit 1			# exit when failed download
			fi
			;;
		*)
			if [ -f ${ARCHIVE} ];then
				mkdir -pv ${SOURCEDIR}
				echo "move ${ARCHIVE} to ${SOURCEDIR}."
				mv ${ARCHIVE} ${SOURCEDIR}
				SOURCE0=`basename ${ARCHIVE}`
			else
				echo "${ARCHIVE} is not file." 1>&2
				exit 1
			fi
			;;
	esac 
}

#
# check packing type
#
CheckPackType()
{
	case ${ARCHIVE} in
		*.tar.bz2)
			BASENAME=`basename ${ARCHIVE} .tar.bz2`
			PACKTYPE="bzip2"
			;;
		*.tbz)
			BASENAME=`basename ${ARCHIVE} .tbz`
			PACKTYPE="bzip2"
			;;
		*.tar.gz)
			BASENAME=`basename ${ARCHIVE} .tar.gz`
			PACKTYPE="gzip"
			;;
		*.tgz)
			BASENAME=`basename ${ARCHIVE} .tgz`
			PACKTYPE="gzip"
			;;
		*.tar.lzma)
			BASENAME=`basename ${ARCHIVE} .tar.lzma`
			PACKTYPE="lzma"
			;;
		*.tlz)
			BASENAME=`basename ${ARCHIVE} .tlz`
			PACKTYPE="lzma"
			;;
		*.tar.xz)
			BASENAME=`basename ${ARCHIVE} .tar.xz`
			PACKTYPE="xz"
			;;
		*.txz)
			BASENAME=`basename ${ARCHIVE} .txz`
			PACKTYPE="xz"
			;;
		*.zip)
			BASENAME=`basename ${ARCHIVE} .zip`
			PACKTYPE="zip"
			;;
		*)
			echo "Unknown format." 1>&2
			exit 1
			;;
	esac

	# load plugin
	if [ -f ${pluginsdir}/${PACKTYPE} ]; then
		source ${pluginsdir}/${PACKTYPE}
	else
		echo "`eval_gettext "Can't find \\\${pluginsdir}/\\\${PACKTYPE}"`" 1>&2
		exit 1
	fi
}

#
# output basic information
#
OutputBasicInfo()
{
	if [ $NAME != ${PKGNAME} ];then
		echo "%define	pkgname	${PKGNAME}" > ${SPECFILE}
		echo >> ${SPECFILE}
	else
		echo > ${SPECFILE}
	fi

cat >> ${SPECFILE} << EOL
# Basic Information
Name:		${NAME}
Version:	${PKGVERSION}
Release:	1%{?_dist_release}
EOL

	echo "`eval_gettext "# Please refer to COPYING etc. and correct License."`" >> ${SPECFILE}
	echo "License:	${LICENSE}" >> ${SPECFILE}
	GROUPS4VINE=/usr/share/doc/rpm-`rpm --version | awk '{ print $3 }'`/GROUPS_for_vine.txt
	echo "`eval_gettext "# Please refer to \\\${GROUPS4VINE} and correct Group."`" >> ${SPECFILE}
	echo "Group:		FIXME" >> ${SPECFILE}
	if [ "x${URI}" != "x" ]; then
		echo "URL:	${URI}" >> ${SPECFILE}
	fi

cat >> ${SPECFILE} << EOL
Source0:	${SOURCE0}
BuildRoot:	%{_tmppath}/%{name}-%{version}-root

Vendor:		Project Vine
Distribution:	Vine Linux
Packager:	${TRACKID}

Summary:	${SUMMARY}
EOL

	case ${LANG} in
	ja_JP*)
		echo "`eval_gettext "Summary(ja):	Describe summary here in Japanese."`" >> ${SPECFILE}
		;;
	esac
	echo >> ${SPECFILE}

	OutputDependency

cat >> ${SPECFILE} << EOL
%description
EOL

	if [ -f ${SOURCEDIR}/description.mkrpmspec ]; then
		cat ${SOURCEDIR}/description.mkrpmspec >> ${SPECFILE}
	else
		echo "FIXME" >> ${SPECFILE}
	fi
	echo >> ${SPECFILE}

	case ${LANG} in
	ja_JP*)
		echo "%description -l ja" >> ${SPECFILE}
		echo "`eval_gettext "describe description here in Japanese."`" >> ${SPECFILE}
		echo >> ${SPECFILE}
		;;
	esac
}

#
# Output prep section
#
OutputPrep()
{
	echo '%prep' >> ${SPECFILE}

	if [ "${NAME}-${PKGVERSION}" != "${PKGDIR}" ]; then
		SETUPOPT=" -n ${PKGDIR}"
	fi
	# setup corresponding to suffix
	case ${PACKTYPE} in
		bzip2 | gzip | lzma | xz)
			echo "%setup -q${SETUPOPT}" >> ${SPECFILE}
			;;
		zip)
			echo "rm -rf %{_builddir}/${PKGDIR}" >> ${SPECFILE}
			echo 'unzip -xq %{SOURCE0}' >> ${SPECFILE}
			echo "%setup -D -T %{name}-%{version}" >> ${SPECFILE}
			;;	
	esac

	echo '' >> ${SPECFILE}
}

#
# Output clean section
#
OutputClean()
{
cat >> ${SPECFILE} << EOL

%clean
%{__rm} -rf \${RPM_BUILD_ROOT}


EOL
}

#
# Output file list
#
OutputFileList()
{
	if [ "${GETTEXTIZE}" = "yes" ]; then
		echo "%files -f %{name}.lang" >> ${SPECFILE}
	elif [ "${PKGTYPE}" = "Perl-ArchDepend" -o "${PKGTYPE}" = "Perl-NoArch" ]; then
		echo "%files -f %{name}.files" >> ${SPECFILE}
	else
		echo "%files" >> ${SPECFILE}
	fi

# ToDo: check file exists
cat >> ${SPECFILE} << EOL
%defattr(-,root,root)
EOL

	if [ "x${DOCFILES}" != "x" ]; then
		echo "%doc${DOCFILES}" >> ${SPECFILE}
	fi

	echo >> ${SPECFILE}
}

#
# Output ChangeLog
#
OutputChangeLog()
{
cat >> ${SPECFILE} << EOL
%changelog
* `LANG=C LANGUAGE=C LC_ALL=C date '+%a %b %d %Y'` $FULLNAME <$EMAIL> $PKGVERSION-1
- initial build for Vine Linux
EOL
}

#
# main
#

#
# parse arguments.
#
if [ -z "$*" ]; then
	print_usage
	exit 1
fi

while [ ! -z "$*" ]
do
	case $1 in
		--pkgname=*)
			PKGNAME=`echo $1 | sed -e 's/--pkgname=//'`
			;;
		--pkgversion=*)
			PKGVERSION=`echo $1 | sed -e 's/--pkgversion=//'`
			;;
		--without-prefix)
			WITHOUT_PREFIX=yes
			;;
		--help)
			print_usage
			exit
			;;
		--version)
			print_version
			exit
			;;
		-*)
			OPTION=`echo $1 | sed -e 's/=.*//'`
			echo "`eval_gettext "Unknown option: \\\${OPTION}"`" >&2
			echo >&2
			print_usage
			exit 1
			;;
		*)
			if [ -z "${ARCHIVE}" ]; then
				ARCHIVE=$1
			else
				echo "`eval_gettext "Too many arguments."`" >&2
				echo >&2
				print_usage
				exit 1
			fi
			;;
	esac
	shift
done

# load configuration
if [ -f $HOME/.config/vine-rpm-helper/mkrpmspec.conf ]; then
	source $HOME/.config/vine-rpm-helper/mkrpmspec.conf
else
	TRACKID="FIXME"
	FULLNAME="Your Name"
	EMAIL="name@yours.example.com"
fi

CheckPackType

if [ -z "${PKGNAME}" ]; then
	PKGNAME=`echo ${BASENAME} | sed -e 's/-[0-9][0-9.]*.*//'`
fi
if [ -z "${PKGVERSION}" ]; then
	PKGVERSION=`echo ${BASENAME} | sed -e 's/^.*-\([0-9][0-9.]*.*\)/\1/'`
fi
SOURCEDIR=`rpm -E '%_sourcedir' | sed -e "s|%{name}|${PKGNAME}|"`
PKGSOURCE=${SOURCEDIR}/`basename ${ARCHIVE}`
BUILDDIR=`rpm -E '%_builddir'`

CheckScheme

CheckPackage

SPECDIR=`rpm -E '%_specdir'`/`echo ${NAME} | sed -e "s/%{pkgname}/${PKGNAME}/"`
mkdir -pv ${SPECDIR}
SPECFILE=${SPECDIR}/`echo ${NAME} | sed -e "s/%{pkgname}/${PKGNAME}/"`-vl.spec

# Backup spec file
if [ -f ${SPECFILE} ]; then
	cp -v ${SPECFILE}{,.`LANG=C LANGUAGE=C LC_ALL=C date '+%Y%m%d%H%M%S'`}
fi

# Load plugins
if [ -f ${pluginsdir}/${PKGTYPE} ]; then
	source ${pluginsdir}/${PKGTYPE}
else
	echo "`eval_gettext "Can't find \\\${pluginsdir}/\\\${PKGTYPE}"`" 1>&2
	exit 1
fi

# Get basic info
SUMMARY=
URI=
if [ "${PKGTYPE}" = "Python" ]; then
	GetBasicInfo
fi

if [ "x${SUMMARY}" = "x" ];then
	SUMMARY="FIXME"
fi

# Output SPEC file.
OutputBasicInfo
OutputPrep
OutputBuild
OutputInstall

if [ "${GETTEXTIZE}" = "yes" ]; then
	echo >> ${SPECFILE}
	echo "%find_lang %{name}" >> ${SPECFILE}
	echo >> ${SPECFILE}
fi

OutputClean
OutputFileList
OutputChangeLog

# Output result
echo "`eval_gettext "Created \\\${SPECFILE}"`"