#!/bin/bash
# Author:	Luis Garcia Gisbert <garcia_luigis@gva.es>
# Description:	Generate llxcfg-scripts
#
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#

# vars
SCRIPTS_PATH="/usr/sbin"
SCRIPTS_DIRLIST="-scripts -scripts.d -scripts.deny"
SCRIPTS_DIRPATH="/etc/llxcfg"

regexp(){
   SCR_TYPE="$1"
   [ "$SCR_TYPE" ] || SCR_TYPE="[^[:blank:]]\+"
   echo "^[[:blank:]]*\(${SCR_TYPE}\)[[:blank:]]*:[[:blank:]]*\(\([^[:blank:]]\+[[:blank:]]*\)\+\)$"
}

scripts_list(){
   REGEXP="$(regexp)"
   sed -ne "/$REGEXP/s%$REGEXP%\1%p" "$SCRIPTS_LIST"
}

script_action_list(){
   REGEXP="$(regexp "$1")"
   sed -ne "/$REGEXP/{s%$REGEXP%\2%;s%^[[:blank:]]*%%;s%[[:blank:]]*$%%;s%[[:blank:]]\+%|%g;p}" "$SCRIPTS_LIST"
}

script_test(){
   [ -f "debian/$package/$SCRIPTS_PATH/llxcfg-${1}-scripts" ] || return 1
   return 0
}


script_gen(){
   mkdir -p "debian/$package/$SCRIPTS_PATH"
   SCRIPT_FILE="debian/$package/$SCRIPTS_PATH/llxcfg-${1}-scripts"
   # custom template or generic one
   for f in /usr/share/llxcfg-dev/scripts/llxcfg-scripts.in debian/llxcfg-scripts.in debian/llxcfg-${1}-scripts.in ; do
      [ ! -r "$f" ] || SCRIPT_TEMPLATE="$f"
   done
   ACTIONS_LIST="$(script_action_list "$1")"
   sed -e "s%_@_SCRIPT_TYPE_@_%$1%g;s%_@_SCRIPT_ACTIONS_@_%$ACTIONS_LIST%g" "$SCRIPT_TEMPLATE" > "$SCRIPT_FILE"
   chmod +x "$SCRIPT_FILE"
   return 0
}

varname_gen(){
   printf "LLXSCR_"
   echo "${STYPE}" |tr "[:lower:]" "[:upper:]" |tr ".\-+ ,;" "_"
}

# main
[ "$LLXCFG_DEV_LIB" ] || LLXCFG_DEV_LIB="/usr/share/lliurex/llxcfg-dev/llxcfg-dev.sh"
. $LLXCFG_DEV_LIB &>/dev/null || { echo "$_ file not found" >&2; exit 1; }

dl_deb_test
ALL_PKGS="$(dl_list_binpkgs)"
for package in ${ALL_PKGS} ; do
   SCRIPTS_LIST="debian/${package}.scrtypes"
   if [ "$package" = "$(dl_first_pkg)" ] ; then
      ALT_LIST="debian/scrtypes"
      [ -s "$ALT_LIST" ] && SCRIPTS_LIST="$ALT_LIST"
   fi
   if [ -r "$SCRIPTS_LIST" ] ; then
      VAR_DIR="debian/$package/$LLXEXT_SOURCE"
      VAR_FILE="$VAR_DIR/$package.scrtypes"
      SCR_LIST="$(scripts_list)"
      TYPES_LIST=""
      mkdir -p "$VAR_DIR"
      for STYPE in $SCR_LIST ; do
         if ! script_test "$STYPE" ; then
            # there is not llxcfg-STYPE-script in the package, so ...
            # generate it from template
            script_gen "$STYPE"
         fi
         # generate dirs
         for d in $SCRIPTS_DIRLIST ; do
            DNAME="debian/$package/${SCRIPTS_DIRPATH}/${STYPE}${d}"
            mkdir -p "$DNAME"
         done
         # common variable definition
         VAR_NAME="$(varname_gen "${STYPE}")"
         echo "$VAR_NAME=\"${STYPE}\"" >> "$VAR_FILE"
         TYPES_LIST="$TYPES_LIST \$${VAR_NAME}"
      done
      echo -e "\nLLXSCR_TYPES=\"\$LLXSCR_TYPES${TYPES_LIST}\"\n" >> "$VAR_FILE"
   fi
done
exit 0