shell

# Goodies that must be sourced into the bash shell
#
# Commands:
# - r: to project root
# - p: to package sub-directory
# If trailing args are passed to either, commands will be invoked in the directory
# rather than `cd`-ing.
#

# if [ "x$MONOREPO_SHELL_LOADED" = "x" ] ; then
    MONOREPO_SHELL_LOADED=1
    MONOREPO_ROOT="$PWD"

    # Plopfile is written as .ts, so tell ts-node to transpile correctly and not to typecheck
    alias plop='TS_NODE_TRANSPILE_ONLY=true TS_NODE_COMPILER_OPTIONS={\"module\":\"commonjs\"} plop'

    r() {
        if (( ${#PWD} < ${#MONOREPO_ROOT} )) || [ "${PWD:0:${#MONOREPO_ROOT}}" != "$MONOREPO_ROOT" ] ; then
          echo "Error: Cannot run this outside of the monorepo" 1>&2
          return 1
        fi
        if [ "$#" = 0 ] ; then
            cd "$MONOREPO_ROOT"
        else
            pushd "$MONOREPO_ROOT"
            "$@"
            popd
        fi
    }

    p() {
        if (( ${#PWD} < ${#MONOREPO_ROOT} )) || [ "${PWD:0:${#MONOREPO_ROOT}}" != "$MONOREPO_ROOT" ] ; then
          echo "Error: Cannot run this outside of the monorepo" 1>&2
          return 1
        fi
        local name=$1
        shift
        if [ "$#" = 0 ] ; then
            cd "$MONOREPO_ROOT/packages/$name"
        else
            pushd "$MONOREPO_ROOT/packages/$name"
            "$@"
            popd
        fi
    }

    _monorepo_p_completions() {

        local cur_word args

        local cur_word="${COMP_WORDS[COMP_CWORD]}"
        local args=("${COMP_WORDS[@]}")

        # completions for package name
        if [ $COMP_CWORD = 1 ] ; then
            local candidates="$( ls $MONOREPO_ROOT/packages )"
            COMPREPLY=( $(compgen -W "$candidates" -- "${cur_word}") )
        fi

        # # all subsequent completions; delegate to bash default behavior (does not work)
        # if (( $COMP_CWORD > 1 )) ; then
        #     local re=' *p +\S+ +(.*)'
        #     if [[ "$COMP_LINE" =~ $re ]] ; then
        #         local NEW_COMP_LINE="${BASH_REMATCH[1]}"
        #     fi
        #     COMP_CWORD=$(( $COMP_CWORD - 2 ))
        #     COMP_WORDS=("${COMP_WORDS[@]:1:9999}")
        #     COMP_POINT=$(( $COMP_POINT - $(( ${#COMP_LINE} - ${#NEW_COMP_LINE} )) ))
        #     COMP_LINE="$NEW_COMP_LINE"
        # fi

        # echo "---"
        # echo COMP_CWORD '<' "$COMP_CWORD" '>'
        # echo COMP_LINE '<' "$COMP_LINE" '>'
        # echo COMP_POINT '<' "$COMP_POINT" '>'
        # echo "----"

        # if no match was found, fall back to filename completion
        if [ ${#COMPREPLY[@]} -eq 0 ]; then
            COMPREPLY=()
        fi

        return 0
    }

    complete -o default -F _monorepo_p_completions p
# fi