#!/bin/bash

# don't bother if bash is not the shell
[ ! "$SHELL" = "/bin/bash" ] && return 1

DIR=${1:-$(dirname ${BASH_SOURCE[0]})}

[[ $(declare -F | grep module_load) ]] && echo module lib already loaded || source "$BASH_SHELL_BASE/module.lib"

# uncomment for debuggin
# echo $USER running load script in $DIR
# echo callers
# caller
# echo $(ps -o comm= $PPID)
# echo -----
# echo $BASH_SHELL_DIRS

module_load file
[[ $? -ne 0 ]] && echo unable to access the file module, aboarting load && return 1

function shell_process_directory () {
    local SUBDIRS
    local DIR

    DIR=${1:-$BASH_SHELL_BASE}
    # echo soucring directory $DIR
    # if [[ $DIR = "$BASH_SHELL_BASE" ]]; then
    #   BASH_SHELL_IGNORE=$(shell_get_ignores)
    #   excludes=$BASH_SHELL_IGNORE
    # else
    #   excludes=$(shell_get_ignores $DIR)
    #   [[ $? -ne 0 ]] && excludes=$BASH_SHELL_IGNORE
    # fi

    if [ -d  "$DIR" ]; then
      if [ "$DIR" = "$BASH_SHELL_BASE" ] && [ "$BASH_SHELL_BASE_LOADED" = "true" ]; then
          if [ -v PS1 ]; then
          echo base directory already sourced
          read -p "do you want to re-source the base (not recommended)? " -n 1 -r
          echo
          [[ ! $REPLY =~ ^[Yy]$ ]] && return 1
          # else
            # echo non-interactive shell
            # return 1
          fi
        fi

      if [[ $DIR != "$BASH_SHELL_BASE" ]] && [[ -f  $DIR/load.sh ]]; then
        # echo "$DIR/load.sh" found, running instead of default load
        source "$DIR/load.sh"
       else
          # default processing
          local SUBDIRS
          local IGNORE_FILE
          SUBDIRS=$([[ -f "$DIR/.bash-shell-include" ]] && cat "$DIR/.bash-shell-include" || echo $BASH_SHELL_BASE_SUBDIRS)
          IGNORE_FILE="$([[ -f "$DIR/.bash-shell-ignore" ]] && echo "$DIR" || echo "$BASH_SHELL_BASE")/.bash-shell-ignore"
          for SUBDIR in $SUBDIRS;  do
            if [ -e  "$DIR/$SUBDIR" ]; then

              # echo processing subdirectory $DIR/$SUBDIR
              # must quote all globs to avoid bash glob expansion which is likely on
              # TODO have default set of ignores plus check for .shell-ignore
              # source_dir -p "archive" -x '"*.off" "*.md"  "*TODO*" "LICENSE" "*.sample"'   -d 0 $DIR/$SUBDIR
              # source_dir -p "archive" -x "$excludes" -d 0 $DIR/$SUBDIR
              source_dir -f "$IGNORE_FILE" -d 0 $DIR/$SUBDIR
             #  else
                # echo no subdirectory $DIR/$SUBDIR to process, ignorning
            fi
          done
        fi
        # echo "done sourcing directory $DIR"
     # else
        # echo $DIR does not exist nothing to source
    fi

  }

# process the base directory by default
unset BASH_SHELL_BASE_LOADED
unset BASH_SHELL_LOADED

# echo bash shell dirs: $BASH_SHELL_DIRS
DIRS=${1:-$BASH_SHELL_DIRS}

BASH_SHELL_BASE_SUBDIRS=$(cat "$BASH_SHELL_BASE/.bash-shell-include")
# echo subdir includes: $BASH_SHELL_BASE_SUBDIRS

for dir in $DIRS; do
  # echo $dir
  shell_process_directory $dir
  [[ $dir == "$BASH_SHELL_BASE" ]] && BASH_SHELL_BASE_LOADED=true
done

export BASH_SHELL_LOADED=true

# process user
# Note: $HOME/shell or $HOME/BASH_SHELL_USER are sourced via $HOME/.bashrc
# echo $(envg BASH) | xargs -n 1