# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

#
# Original Author: fat-zer
# Purpose: support planty of ebuilds for trinity project (a kde3 fork).
#

inherit trinity-functions cmake-utils base

# FIXME we don't need to write to both 
addwrite "/usr/qt/3/etc/settings"
addpredict "/usr/qt/3/etc/settings"
addwrite "/usr/tqt3/etc/settings"
addpredict "/usr/tqt3/etc/settings"

# ban EAPI 0, 1 and 2
case $EAPI in
	0|1|2|3|4) die "EAPI=${EAPI} is not supported" ;;
	5) ;;
	*) die "Unknown EAPI=${EAPI}"
esac

# @ECLASS-VARIABLE: BUILD_TYPE
# @DESCRIPTION:
# Determins he build type: live or release
if [[ ${PV} = *9999* ]]; then
	BUILD_TYPE="live"
else
	BUILD_TYPE="release"
fi
export BUILD_TYPE

# @ECLASS-VARIABLE: TRINITY_MODULE_NAME
# @DESCRIPTION:
# The name of trinity module; It's used for multiple purposes. First of all it
# determines the tarball name (git repository for live packages)
echo "${TRINITY_MODULE_NAME:=${PN}}" >/dev/null

# @ECLASS-VARIABLE: TRINITY_SCM
# @DESCRIPTION:
# Determins from what version control system code is chiking out for live
# ebuilds.

# @ECLASS-VARIABLE: TMP_DOCDIR
# @DESCRIPTION: 
# A temporary directory used to copy common documentation before installing it
# 
# @ECLASS-VARIABLE: TRINTY_BASE_NO_INSTALL_DOC
# @DESCRIPTION: 
# if setted to anything except "no" this variable prevents
# trinity-base_src_install() to install documentation
# 

# @ECLASS-VARIABLE: TRINTY_LANGS
# @DESCRIPTION: 
# This is a whitespace-separated list of translations this ebuild supports.
# These translations are automatically added to IUSE. Therefore ebuilds must set
# this variable before inheriting any eclasses. To enable only selected
# translations, ebuilds must call enable_selected_linguas(). kde4-{base,meta}.eclass does
# this for you.

# @ECLASS-VARIABLE: TRINTY_DOC_LANGS
# @DESCRIPTION: 
# This is a whitespace-separated list of translations this ebuild supports.
# These translations are automatically added to IUSE. Therefore ebuilds must set
# this variable before inheriting any eclasses. To enable only selected
# translations, ebuilds must call enable_selected_linguas(). kde4-{base,meta}.eclass does
# this for you.

# @ECLASS-VARIABLE: TRINITY_HANDBOOK
# @DESCRIPTION:
# Set to enable handbook in application. Possible values are 'always', 'optional'
# (handbook USE flag) and 'never'.
# This variable must be set before inheriting any eclasses. Defaults to 'never'.
# As well It ensures buildtime and runtime dependencies.
TRINITY_HANDBOOK="${TRINITY_HANDBOOK:-never}"

# @ECLASS-VARIABLE: TRINITY_EXTRAGEAR_PACKAGING
# @DESCRIPTION:
# Set TRINITY_EXTRAGEAR_PACKAGING=yes before inheriting if the package use extragear-like
# packaging and then supports ${TRINITY_LANGS}, ${TRINITY_DOC_LANGS} and
# ${TRINITY_HANDBOOK} variables. The translations are found in the directory
# pointed by the TEG_PO_DIR variable.

# @ECLASS-VARIABLE: TRINITY_GIT_MIRROR
# @DESCRIPTION:
# User (or ebuild) can decide another git mirror if it's needed;
# Defaults to http://scm.trinitydesktop.org/scm/git

# @ECLASS-VARIABLE: TRINITY_GIT_BRANCH
# @DESCRIPTION:
# Specify git branch for live ebuilds. Default: master

# @ECLASS-VARIABLE: TRINITY_COMMON_DOCS
# @DESCRIPTION:
# Common doc names that was found in trinity project's dirs.
TRINITY_COMMON_DOCS="AUTHORS BUGS CHANGELOG CHANGES COMMENTS COMPLIANCE COMPILING
	CONFIG_FORMAT CONFIGURING COPYING COPYRIGHT CREDITS DEBUG DESIGN FAQ 
	HACKING HISTORY HOWTO IDEAS INSTALL LICENSE MAINTAINERS NAMING NEWS
	NOTES PLUGINS PORTING README SECURITY-HOLES TASKGROUPS TEMPLATE 
	TESTCASES THANKS THOUGHTS TODO VERSION"

# @ECLASS-VARIABLE: TRINITY_TARBALL
# @DESCRIPTION: 
# This variable holds the name of the tarboll with current module's source code.

# @ECLASS-VARIABLE: TRINITY_BASE_SRC_URI
# @DESCRIPTION:
# The top SRC_URI for all trinity packages
TRINITY_BASE_SRC_URI="http://www.mirrorservice.org/sites/trinitydesktop.org/trinity/releases/"
# TRINITY_BASE_SRC_URI="http://trinity.blackmag.net/releases" # the old one

#reset TRINITY_SCM and inherit proper eclass
if [[ ${BUILD_TYPE} = live ]]; then
	# set default TRINITY_SCM if not set
	[[ -z "$TRINITY_SCM" ]] && TRINITY_SCM=git

	case ${TRINITY_SCM} in
		git) inherit git-2 ;;
		*) die "Unsupported TRINITY_SCM=${TRINITY_SCM}" ;;
	esac

	#set some varyables
	case ${TRINITY_SCM} in
	git)
		 EGIT_REPO_URI="${TRINITY_GIT_MIRROR:=http://scm.trinitydesktop.org/scm/git}/${TRINITY_MODULE_NAME}"
		 EGIT_BRANCH="${TRINITY_GIT_BRANCH:=master}"
		 EGIT_PROJECT="trinity/${TRINITY_MODULE_NAME}"
		 EGIT_HAS_SUBMODULES="yes"
	;;
	esac
	S="${WORKDIR}/${TRINITY_MODULE_NAME}"
elif [[ "${BUILD_TYPE}" == release ]]; then
	mod_name="${TRINITY_MODULE_NAME}"
	mod_ver="${TRINITY_MODULE_VER:=${PV}}"
	
	case ${mod_ver} in
	3.5.13.1) 
		full_mod_name="${mod_name}-${mod_ver}"
		TRINITY_TARBALL="${full_mod_name}.tar.gz" ;;
	3.5.13.2) 
		full_mod_name="${mod_name}-trinity-${mod_ver}"
		TRINITY_TARBALL="${full_mod_name}.tar.xz" ;;
	*) 
		full_mod_name="${mod_name}-${mod_ver}"
		TRINITY_TARBALL="${full_mod_name}.tar.xz"
	esac
	
	if [[ -n "${TRINITY_MODULE_TYPE}" ]] ; then
		SRC_URI="${TRINITY_BASE_SRC_URI}/${mod_ver}/${TRINITY_MODULE_TYPE}/$TRINITY_TARBALL"
	else
		SRC_URI="${TRINITY_BASE_SRC_URI}/${mod_ver}/$TRINITY_TARBALL"
	fi

	S="${WORKDIR}/${full_mod_name}"
else
	die "Unknown BUILD_TYPE=${BUILD_TYPE}"
fi


if [[ -n "${TRINITY_EXTRAGEAR_PACKAGING}" ]]; then 
# @ECLASS-VARIABLE: TEG_PO_DIR
# @DESCRIPTION:
# Change the translation directory for extragear packages. The default is ${S}/po
	TEG_PO_DIR="${TEG_PO_DIR:-${S}/po}"

# @ECLASS-VARIABLE: TEG_DOC_DIR
# @DESCRIPTION:
# Change the documentation directory for extragear packages. The default is
# ${S}/doc
	TEG_DOC_DIR="${TEG_DOC_DIR:-${S}/doc}"

	if [[ -n "${TRINITY_LANGS}" || -n "${TRINITY_DOC_LANGS}" ]]; then
		for lang in ${TRINITY_LANGS} ${TRINITY_DOC_LANGS}; do
			IUSE="${IUSE} linguas_${lang}"
		done

		trinityhandbookdepend="
			app-text/docbook-xml-dtd:4.2
			app-text/docbook-xsl-stylesheets
		"
		case ${TRINITY_HANDBOOK} in
			yes | always)
				DEPEDND+=" ${trinityhandbookdepend}"
				;;
			optional)
				IUSE+=" +handbook"
				DEPEND+=" handbook? ( ${trinityhandbookdepend} )"
				;;
			*) ;;
		esac
	fi
fi

# @FUNCTION: trinity-base_src_unpack
# @DESCRIPTION:
# A default src unpack function to be call git-2_src_unpack either 
trinity-base_src_unpack() {
	if [[ ${BUILD_TYPE} = live ]]; then
		case "${TRINITY_SCM}" in

			git)
				git-2_src_unpack
				;;
			*)   die "TRINITY_SCM: ${TRINITY_SCM} is not supported by ${FUNCNAME}" ;;
		esac
	else
		base_src_unpack
	fi
}


# @FUNCTION: trinity-base_src_prepare
# @DESCRIPTION:
# General pre-configure and pre-compile function for Trinity applications.
trinity-base_src_prepare() {
	debug-print-function ${FUNCNAME} "$@"

# 	# Only enable selected languages, used for KDE extragear apps.
# 	if [[ -n ${KDE_LINGUAS} ]]; then
# 		enable_selected_linguas
# 	fi
	local dir lang

	# SCM bootstrap
	if [[ ${BUILD_TYPE} = live ]]; then
		case ${TRINITY_SCM} in
			svn) subversion_src_prepare ;;
	        git) ;;
			*)  die "TRINITY_SCM: ${TRINITY_SCM} is not supported by ${FUNCNAME}"
		esac
	fi

	# Apply patches
	base_src_prepare
	
	# Handle documentation and  translations for extragear packages
	if [[ -n "$TRINITY_EXTRAGEAR_PACKAGING" ]]; then
		# remove not selected languages
		if [[ -n $TRINITY_LANGS ]]; then
			einfo "Removing unselected translations from ${TEG_PO_DIR}"
			for dir in $(find ${TEG_PO_DIR} -mindepth 1 -maxdepth 1 -type d ); do
				lang="$(basename "$dir")"
				if ! has "$lang" ${TRINITY_LANGS}; then
					eerror "Translation $lang seems to present in the package but is not supported by the ebuild"
				elif ! has $lang ${LINGUAS}; then
					rm -rf $dir
				fi
			done
		fi

		# if we removed all translations we should point it
		if [[ -z $(find ${TEG_PO_DIR} -mindepth 1 -maxdepth 1 -type d) ]]; then
			TRINITY_NO_TRANSLATIONS=yes
		fi
		
		# remove not selected documentation
		if [[ -n $TRINITY_DOC_LANGS ]]; then
			einfo "Removing unselected documentation from ${TEG_DOC_DIR}"
			for dir in $(find ${TEG_DOC_DIR} -mindepth 1 -maxdepth 1 -type d ); do
				lang="$(basename "$dir")"
				if [[	"$lang" == "${PN}" || \
						"$lang" == "${TRINITY_MODULE_NAME}"  ]] ; then
					echo -n; # do nothing it's main documentation
				elif ! has "$lang" ${TRINITY_LANGS}; then
					eerror "Documentation translated to language $lang seems to present in the package but is not supported by the ebuild"
				elif ! has $lang ${LINGUAS}; then
					rm -rf $dir
				fi
			done
		fi
	fi
}


# @FUNCTION: trinity-base_src_configure
# @DESCRIPTION:
# Call standart cmake-utils_src_onfigure and add some common arguments.
trinity-base_src_configure() {
	debug-print-function ${FUNCNAME} "$@"
	local eg_cmakeargs	
	
	[[ -n "${PREFIX}" ]] && export PREFIX="${TDEDIR}"

	if [[ -n "$TRINITY_EXTRAGEAR_PACKAGING" ]]; then
		eg_cmakeargs=( -DBUILD_ALL=ON )
		if [[ "$TRINITY_NO_TRANSLATIONS" == "yes" ]]; then
			eg_cmakeargs=( -DBUILD_TRANSLATIONS=OFF "${eg_cmakeargs[@]}" )
		else
			eg_cmakeargs=( -DBUILD_TRANSLATIONS=ON "${eg_cmakeargs[@]}" )
		fi
		if [[ "${TRINITY_HANDBOOK}" == optional ]]; then
			eg_cmakeargs=( 
					$(cmake-utils_use_with handbook DOC)
					"${eg_cmakeargs[@]}" )
		fi
	fi

	mycmakeargs=(
		-DCMAKE_INSTALL_PREFIX="${EPREFIX}${TDEDIR}"
		-DCMAKE_INSTALL_RPATH="${EPREFIX}${TDEDIR}"
		$([[ "${TRINITY_NEED_ARTS}" == "optional" ]] && cmake-utils_use_with arts ARTS)
		"${eg_cmakeargs[@]}"
		"${mycmakeargs[@]}"
	)
	cmake-utils_src_configure
}

# @FUNCTION: trinity-base_src_compile
# @DESCRIPTION:
# Just call cmake-utils_src_compile.
trinity-base_src_compile() {
	debug-print-function ${FUNCNAME} "$@"
	
	cmake-utils_src_compile
}

# @FUNCTION: trinity-base_src_install
# @DESCRIPTION:
# Call standart cmake-utils_src_install and installs common documentation. 
trinity-base_src_install() {
	debug-print-function ${FUNCNAME} "$@"
	cmake-utils_src_install

	trinity-base_fix_desktop_files
	if [[ -z "$TRINITY_BASE_NO_INSTALL_DOC" ||
			"$TRINITY_BASE_NO_INSTALL_DOC" == "no" ]]; then
		trinity-base_create_tmp_docfiles
		trinity-base_install_docfiles
	fi
}

# @FUNCTION: trinity-base_create_tmp_docfiles
# @DESCRIPTION:
# Create docfiles in the form ${TMP_DOCDIR}/path.to.docfile.COMMON_NAME
# Also see the description for TRINITY_COMMON_DOCS and TMP_DOCDIR.
trinity-base_create_tmp_docfiles() {
	debug-print-function ${FUNCNAME} "$@"
	local srcdirs dir docfile targetdoc

	if [[ -z "$TMP_DOCDIR" || ! -d "$TMP_DOCDIR" ]] ; then
		TMP_DOCDIR="$T/docs"
		mkdir -p ${TMP_DOCDIR}
	fi

	if [[ -z "$@" ]] ; then
		srcdirs="./"
	else
		srcdirs="$@"
	fi

	einfo "Generating documentation list..."
	for dir in $srcdirs; do
		for doc in ${TRINITY_COMMON_DOCS}; do
			for docfile in $(find $dir -type f -name "*${doc}*"); do
				targetdoc="${docfile//\//.}"
				targetdoc="${targetdoc#..}"
				cp "${docfile}" "$TMP_DOCDIR/${targetdoc}"
			done
		done
	done

#	if [[ "${TRINITY_INSTALL_ROOT_DOCS}" == "yes" && " ${srcdirs} " == "* ./ *" ]]; then
#		for doc in ${TRINITY_COMMON_DOCS}; do
#			for docfile in $(ls ./"*${doc}*"); do
#				targetdoc="${docfile//\//.}"
#				targetdoc="${targetdoc#..}"
#				cp "${docfile}" "$TMP_DOCDIR/${targetdoc}"
#			done
#		done
#	fi
}

# @FUNCTION: trinity-base_install_docfiles
# @DESCRIPTION:
# Install documentation from ${TMP_DOCDIR} or from first argument.
trinity-base_install_docfiles() {
	debug-print-function ${FUNCNAME} "$@"
	local doc docdir
	[[ -n "$TMP_DOCDIR" ]] && docdir="$TMP_DOCDIR"
	[[ -n "$1" ]] && docdir="$1"
	[[ -z "$docdir" ]] && die "docdir is not set in ${FUNCNAME}."

	pushd "${docdir}" >/dev/null
	find . -maxdepth 1 -type f | while read doc; do
		einfo "Installing documentation: ${doc##*/}"
		dodoc "${doc}"
	done
	popd >/dev/null
}

# @FUNCTION: trinity-base_fix_desktop_files
# @DESCRIPTION:
# Perform desktop files modifications according to current version. You can pass
# either desktop files or direcories to the parametrs. In case you'd pass a
# directory the function will recursively search for all desktop files and
# modify them. If no argument specified the function assume to work on the ${D};
trinity-base_fix_desktop_files() {
	
	# Test if we have to perform any file fixing for current version
	case "3.5" in
		*${TRINITY_VER}*);;
		*) return 0 ;;
	esac
	
	local file_list dir_list f
	
	if [ "$#" != 0 ]; then
		# Get directories and files from arguments
		for f in $@; do
			if [ -f "$f" ]; then 
				file_list+=" $f"
			elif [ -d "$f" ]; then
				dir_list+=" $f"
			else
				eerror "${FUNCNAME}: bad argument type: $(stat -c %F "$f")"
			fi
		done
	else
		dir_list="${D}"
	fi

	# Recursivly search for desktop files in directories
	for f in $dir_list; do
		file_list+="$(find ${f} -type f -name '*.desktop')"
	done
	
	# Performe the updates
	case "${TRINITY_VER}" in
	3.5)
		for f in $file_list; do
			sed -i '/^OnlyShowIn=/s/KDE/TDE/g' "$f"
		done;;
	esac
}

EXPORT_FUNCTIONS src_configure src_compile src_install src_prepare