. ./inc/chroot-functions.inc.sh
. ./inc/color.inc.sh
. ./inc/helper.inc.sh

cleanup_tmp(){
  rm -f /tmp/.broot* >/dev/null 2>&1
}

runtasks() {
  echo "tasks=(${tasks[@]:0} cleanup)" > /tmp/.broot.tasks
  touch /tmp/.broot.runtime_events
  while [ -f /tmp/.broot.tasks -a ! -f /tmp/.broot.exit ]
  do
    # reread tasks list
    . /tmp/.broot.tasks
    . /tmp/.broot.runtime_events

    [ -f $BROOT_BUILDROOT_PATH/.broot.packages.installed ] || mkdir -p $BROOT_BUILDROOT_PATH && touch $BROOT_BUILDROOT_PATH/.broot.packages.installed
    . $BROOT_BUILDROOT_PATH/.broot.packages.installed

    if [ -f /tmp/.broot.tasks.replace ]; then
      mv /tmp/.broot.tasks.replace /tmp/.broot.tasks
      . /tmp/.broot.tasks
    fi

    #TODO: check dependencies
    fulltasks=${tasks[@]:0}
    t=${tasks[@]:0:1}
    tmp_tasks=${tasks[@]:1}
    if [ -e "./tasks/$t.task.sh" ]; then
      #echo "DEBUG: parsing task: $t"
      #echo "DEBUG: rest of list: $tmp_tasks"
      #echo "DEBUG: fulltasklist $fulltasks"
      . ./tasks/$t.task.sh
      eval append=\$${t}_append

      still_need=""

      eval runtime_dependencies=\$${t}_runtime_dependencies
      have_all_runtime_dependencies=1
      for d in $runtime_dependencies
      do
        eval dep=\$${d}_finished
        ##echo "check for $dep"
        if [ "x$dep" != "x1" ]; then
          have_all_runtime_dependencies=0
          if [ "x$still_need" == "x" ]; then
            still_need="$d"
          else
            still_need="$d $still_need"
          fi
        fi
      done
      
      eval package_dependencies=\$${t}_package_dependencies
      have_all_package_dependencies=1
      for d in $package_dependencies
      do
        eval dep=\$${d}_installed
        # echo "check for $dep"
        if [ "x$dep" != "x1" ]; then
          have_all_package_dependencies=0
          if [ "x$still_need" == "x" ]; then
            still_need="$d"
          else
            still_need="$d $still_need"
          fi
        fi
      done

      if [ "x$have_all_runtime_dependencies" == "x0" -o "x$have_all_package_dependencies" == "x0" ]; then
         echo "tasks=($still_need $fulltasks)" > /tmp/.broot.tasks
         #echo "DEBUG: unmatched dependencies: prepending: $still_need; tasks: $fulltasks"
      else
        echo "-- [$t] --"
        eval $t  
        echo "--"
        echo "${t}_finished=1" >> /tmp/.broot.runtime_events
        # TODO: 
        echo "${t}_installed=1" >> $BROOT_BUILDROOT_PATH/.broot.packages.installed
        echo "tasks=($append $tmp_tasks)" > /tmp/.broot.tasks
        #echo "DEBUG: appended tasks: $append; old tasklist $tmp_tasks"
      fi
    else
      echo "Error: task \"$t\" not found.."
      echo "Unfinished tasks: $fulltasks"
      echo "Try to fix the problem and run: \"$0 resume\""
      echo "tasks=($fulltasks)" > $BROOT_BUILDROOT_PATH/.resume
      exit 42
    fi
  done
  rm -f /tmp/.broot.tasks
  rm -f /tmp/.broot.exit
  rm -f /tmp/.broot.runtime_events
}