#compdef eselect

# Author: Piotr 'qermit' Miedzik

# implemented eselect functions: 
# compiler, binutils, bashcomp, env, kernel, lapack, mailer, opengl, profile, rc

_eselect_compiler () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'getval[Print information for the given profile.]' \
	   'list[List all installed compiler profiles.]' \
		'migrate[Convert gcc-1.x profiles.  This will not overwrite existing profiles, so you should backup //etc/eselect/compiler first.]' \
		'set[Select a compiler profile.]' \
		'show[Print the current active configuration.  It can take a CTARGET argument]' \
		'unset[Deactivate a selected profile.]' \
		'update[Refresh all the installed wrappers.]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
			local profile
   		 profile=`ls /etc/env.d/gcc |grep -v config`
   		 _tags profile && { compadd "$@" -k profile || compadd "$@" ${(kv)=profile} }
      elif [[ $words[1] == 'getval' ]];then
         local zm
         zm="BINPATH INFOPATH MANPATH LDPATH STDCXX_INCDIR GCC_SPECS CFLAGS"
  			compadd  ${(kv)=zm}
		fi
	fi
}
_eselect_binutils () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'list[List all installed version of binutils]' \
		'set[Activate one of the installed binutils]' \
		'show[Print the currently active binutils version]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
			local profile
   		 profile=`ls /etc/env.d/binutils |grep -v '^config'`
   		 _tags profile && { compadd "$@" -k profile || compadd "$@" ${(kv)=profile} }
		fi
	fi
}
_eselect_bashcomp () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'disable[Disable specified completion(s)]' \
		'enable[Enable specified completion(s)]' \
		'list[List available completions]'
	fi
}

_eselect_env () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
		'update[Collect environment variables from all scripts in /etc/env.d/]'
	fi
}

_eselect_kernel () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'list[List available kernel symlink targets]' \
		'set[Set a new kernel symlink target]' \
		'show[Show the current kernel symlink]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
			local profile
   		 profile=(/usr/src/linux-*(:t))
   		 _tags profile && { compadd "$@" -k profile || compadd "$@" ${(kv)=profile} }
		fi
	fi
}
_eselect_lapack () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'list[List all installed LAPACK implementations]' \
		'scan[Scans the system for data about all installed LAPACK implementations]' \
		'set[Setup one of the installed LAPACK implementations as the active implementation]' \
		'show[Show the currently active LAPACK implementations]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
		fi
	fi
}

_eselect_mailer () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'list[List available mailer.conf profiles]' \
		'set[List available mailer.conf profiles]' \
		'show[Set a new mailer.conf profile]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
		fi
	fi
}

_eselect_opengl () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'list[List the available OpenGL implementations.]' \
		'set[Select the OpenGL implementation.]' \
		'show[Print the current OpenGL implementation.]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
            _values "opengl-update options" \
            'xorg-x11[Use libGL.so from X.Org]' \
            'xfree[Use libGL.so from XFree86]' \
            'nvidia[Use libGL.so from the NVidia drivers.]'
		fi
	fi
}

_eselect_profile () {
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
	   'list[List the available OpenGL implementations.]' \
		'set[Select the OpenGL implementation.]' \
		'show[Print the current OpenGL implementation.]'
   elif (( CURRENT == 2 )); then
		if [[ $words[1] == 'set' ]];then
			local profile
			profile=$(sed -n -e "s|^x86[[:space:]]\+\([^[:space:]]\+\).*$|\1|p" /usr/portage/profiles/profiles.desc)
			_tags profile && { compadd "$@" -k profile || compadd "$@" ${(kv)=profile} }
		fi
	fi
}

_eselect_rc () {
	local gentoo_runlevels init_scripts used_scripts
	gentoo_runlevels=(/etc/runlevels/*(:t))
	init_scripts=(/etc/init.d/*(:t))
	used_scripts=$(ls /etc/runlevels/*/* |xargs -l basename |sort |uniq)
	if (( CURRENT == 1 ));then  
	  	_values "eselect module" \
		'help[Display a help message]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
		'add[Add script to existing runlevel(s)]' \
		'delete[Delete script from existing runlevel(s)]' \
		'list[List all available init scripts]' \
		'pause[Pauses given set of init scripts manually]' \
		'restart[Restart given set of init scripts]' \
		'show[Show init script status for current runlevel]' \
		'start[Start given set of init scripts manually]' \
		'stop[Stop given set of init scripts manually]'
	elif (( CURRENT == 2 )); then
		case "$words[1]" in
			add|pause|restart|start|stop)
				_tags init_scripts && { compadd "$@" -k init_scripts || compadd "$@" ${(kv)=init_scripts} }
				;;
			list)
				_tags gentoo_runlevels && { compadd "$@" -k gentoo_runlevels || compadd "$@" ${(kv)=gentoo_runlevels} }
				;;
			delete)
				_tags used_scripts && { compadd "$@" -k used_scripts || compadd "$@" ${(kv)=used_scripts} }
				;;
		esac
	elif (( CURRENT == 3 )); then
		case "$words[1]" in
			add|delete)
				_tags gentoo_runlevels && { compadd "$@" -k gentoo_runlevels || compadd "$@" ${(kv)=gentoo_runlevels} }
				;;
		esac
	fi
}



_eselect () {
	if (( CURRENT == 2 ));then
		_values "eselect module" \
		'help[Display a help message]' \
		'list-modules[Find and display available modules]' \
		'usage[Display a usage message]' \
		'version[Display version information]' \
		'bashcomp[Manage contributed bash-completion scripts]' \
		'binutils[Manage installed versions of sys-devel/binutils]' \
		'blas[Manage installed BLAS implementations]' \
		'compiler[Manage the installed compilers.]' \
		'env[Manage environment variables set in /etc/env.d/]' \
		'kernel[Manage the /usr/src/linux symlink]' \
		'lapack[Manage installed LAPACK implementations]' \
		'mailer[Manage the mailwrapper profiles in /etc/mail]' \
		'opengl[Manage the OpenGL implementation used by your system]' \
		'profile[Manage the /etc/make.profile symlink]' \
		'rc[Manage /etc/init.d scripts in runlevels]' 
   elif (( CURRENT > 2 ));then
		module=$words[2]
#      echo "$module"
     (( CURRENT-- ))
	  shift words
     (( CURRENT-- ))
	  shift words
		if [[ "${module}" == 'usage' ]]; then
      elif [[ "${module}" == 'compiler' ]]; then
        _eselect_compiler
      elif [[ "${module}" == 'binutils' ]]; then
        _eselect_binutils
      elif [[ "${module}" == 'bashcomp' ]]; then
        _eselect_bashcomp
      elif [[ "${module}" == 'env' ]]; then
        _eselect_env
      elif [[ "${module}" == 'kernel' ]]; then
        _eselect_kernel
      elif [[ "${module}" == 'lapack' ]]; then
        _eselect_lapack
      elif [[ "${module}" == 'mailer' ]]; then
        _eselect_mailer
      elif [[ "${module}" == 'opengl' ]]; then
        _eselect_opengl
      elif [[ "${module}" == 'profile' ]]; then
        _eselect_profile
      elif [[ "${module}" == 'rc' ]]; then
        _eselect_rc
      fi
	fi


}


case "$service" in
	ebuild)
		_ebuild "$@" && return 0
		;;
esac