#!/bin/bash
# 
# Author: Angel Berlanas Vicente <aberlanas.gva@gmail.com>
#
# This Script is licensed by GPL V3 or higher.

# VARIABLES

WORK_PWD=""

CONF_FILE="/etc/lliurex/llxdev.conf"
LIB_FILE="/usr/share/lliurex-non-essential-tools/common.sh"
FILE_TPL="/usr/share/lliurex-non-essential-tools/templates/copyright.tpl"
ALL_STAR="/usr/share/lliurex-non-essential-tools/lliurex-all-star.team"

[ -e "$LIB_FILE" -a -e "$CONF_FILE" ] || exit 1

   . "$LIB_FILE"
   . "$CONF_FILE"


_die(){     
     # DIE function to exit
     echo $@ && exit 1

}

_some_sanity_checks(){

     [ -e $LLIUREX_UPLOADERS_LIST ] || _die "$LLIUREX_UPLOADERS_LIST not present...please check your configuration"
     return 0

}


_test_package_place(){

     # Test if the "debian" directory is present and
     # store local directory
     
     WORK_PWD=$(pwd)
     
     [ -d $WORK_PWD/debian ] || _die "debian directory not exists .... Sure that we are in Debian Package Root Directory"
        
     return 0

}

_usage(){

   CMD="$(basename "$0")"
  
echo "Usage: $CMD [ --force ]  update  "
echo "       $CMD show-maintainers    "
exit 0
}

_myecho(){

     
     echo "++++++++++++++++++++++"
     echo "$@"
     echo "++++++++++++++++++++++"
}


_show_maintainers(){


     cat "$LLIUREX_UPLOADERS_LIST"
     return 0

}

_test_control_sanity(){

     # Test if control have some Sanit Values
     # Uploaders is present
     # Maintainers Team
     
     [ -f $WORK_PWD/debian/control ] || _die "Control file not present, exiting..."
   
     TMP_UPLOADERS_LIST=$(mktemp /tmp/lliurex-build.XXXXX) 
     TMP_CONTROL=$(mktemp /tmp/lliurex-build.XXXXXXXX)
     cp -f $WORK_PWD/debian/control $TMP_CONTROL
      
     # Fix Uploaders Line
     grep -q "^Uploaders" $WORK_PWD/debian/control || sed  -i "/^Maintainer/a\Uploaders:"  $WORK_PWD/debian/control
   
     LIST_UPLOADERS_PRESENT="$(cat $WORK_PWD/debian/control  | grep "^Uploaders" | cut -d : -f2 | sed -e "s%,[[:blank:]]%\n%g;s%^[[:blank:]]%%g")"     
     
     _myecho "Uploaders in Control are:  "
    
     echo "$LIST_UPLOADERS_PRESENT" | tee $TMP_UPLOADERS_LIST
     
     _myecho " There are : $(echo $"$LIST_UPLOADERS_PRESENT" | wc -l )  Uploaders"
     
     DIFF=$(combine "$TMP_UPLOADERS_LIST" xor "$LLIUREX_UPLOADERS_LIST")
     NUM_DIFF=$(echo $DIFF | wc -w) 
    
     if [ $NUM_DIFF -ne 0 ] ; then 
          _myecho "There Are differences:"
          echo $DIFF
         
               if [ ! $SILENT_MODE ] ; then  
         
                    _myecho "Do you want to Update it ^_^ (Y/n)?"
                    read ANSWER
                
               else 
               
                    ANSWER="Y"     
                        
               fi
     
               # If Answer is Positive we replace the Uploaders List
               if [ "$ANSWER" = "Y" ] ; then 
          
                    _myecho "Updating List...."
                    INCOMPLETELIST="$(cat $LLIUREX_UPLOADERS_LIST | sed -e "s%^% %g" | tr  "\n" ","| sed -e "s%,\$%%g")"
                    COMPLETELIST="Uploaders:$INCOMPLETELIST"
                    sed -e "s%^Uploaders:.*%$COMPLETELIST%;s%^Maintainer:.*%$LLIUREX_TEAM%g" "$WORK_PWD/debian/control" > $TMP_CONTROL
                    mv "$TMP_CONTROL" "$WORK_PWD/debian/control"
                    dch -a "Uploaders Fixed" 
               fi 
          
     fi 
     rm -f $TMP_UPLOADERS_LIST
     rm -f $TMP_CONTROL
     return 0     

}

all_star_fix(){
	if  [ -r "$ALL_STAR" ] ; then
		STAR_TAG="XBSC-All-Star-Uploaders:"
		STAR_LIST="$(cat "$ALL_STAR" |tr "\n" "," |sed -e "s%,%, %" )"
		TMP_FILE="$(tempfile)"
		cp -a debian/control $TMP_FILE
		sed -e "/^$STAR_TAG/d;/^Uploaders:/a$STAR_TAG;/^$STAR_TAG/s%$%$STAR_LIST%" $TMP_FILE
		cat $TMP_FILE > debian/control
	fi
}
		

#
# MAIN
#

#Source of Configuration

_some_sanity_checks
_test_package_place

ACTION="$1"

# If --force Flag is sended , enable Silent Mode
if [ "$ACTION" = "--force" ] ; then 

     SILENT_MODE="on"
     ACTION="$2"

fi

# Actions Available
case "$ACTION" in

     update)
          _test_control_sanity
  	  all_star_fix
     ;;
     show-maintainers)
          _show_maintainers
     ;;     
     *) 
          _usage
     ;;

esac

exit 0