#!/usr/bin/env bash

declare -a PKG_CONFIG_ARRAY
PKG_CONFIG_ARRAY=( $(type -a -P pkg-config) )
PKG_CONFIG="${PKG_CONFIG_ARRAY[1]}"

for ((i = 1; i <= ${#}; i++)); do
    case "${!i}" in
	--variable*)
	    found_var=true
	    break
	    ;;
	*)
	    ;;
    esac
done

#
# this sed will sanitize pkg-config's output. it will remove:
#
# "/usr/lib/pkgconfig/../../.."
# "/lib/pkgconfig/../.."
#
declare -a args
args=( \
    "-e" "s~/usr/lib/pkgconfig/\.\./\.\./\.\.~~g" \
    "-e" "s~/lib/pkgconfig/\.\./\.\.~~g" \
    )

if [ -n "${PTXDIST_PKG_CONFIG_VAR_NO_SYSROOT}" -a \
    -n "${found_var}" ]; then
    #
    # remove sysroot for variables that return a path
    #
    args[${#args[@]}]="-e"
    args[${#args[@]}]="s~^${SYSROOT}/~/~"
else
    declare -a sysroot_prefix
    #
    # this shell/sed magic removes "-I$SYSROOT/include" from
    # pkg-config's output
    #

    #
    # transform from PATH to array: /foo:/bar -> /foo /bar
    #
    sysroot_prefix=( ${PTXDIST_PATH_SYSROOT_PREFIX//:/ } )

    #
    # make sed expression: -e s~-I/foo/include\(\s\|$\)~~
    # remove whitespace
    #
    sysroot_prefix=( ${sysroot_prefix[@]/%//include\\(\\s\\|$\\)~~} )
    args=( ${args[@]} ${sysroot_prefix[@]/#/-e s~-I} -e "s~\s\+~ ~g" -e "s~^\s\+$~~")
fi

"${PKG_CONFIG}" "${@}" | sed "${args[@]}"
for _pipe_status in "${PIPESTATUS[@]}"; do
    if [ ${_pipe_status} -ne 0 ]; then
        exit ${_pipe_status}
    fi
done