#!/bin/bash

log() {
	echo "[automagic] " $@
}

die() {
	log "Fatal: "$@
	exit 1
}

if [[ ! -d platform/unix ]]; then
	log "Can't find the 'plaform/unix' folder, make sure you run this from the root of the repository."
	exit 1
fi

AUTOHEADER=${AUTOHEADER:-$(which autoheader)}
AUTOCONF=${AUTOCONF:-$(which autoconf)}
LIBTOOLIZE=${LIBTOOLIZE:-$(which libtoolize)}
ACLOCAL=${ACLOCAL:-$(which aclocal)}
AUTOMAKE=${AUTOMAKE:-$(which automake)}

[[ -x ${AUTOHEADER} ]] || die "Could not find autoheader. Install autoconf."
[[ -x ${AUTOCONF} ]]   || die "Could not find autoconf."
[[ -x ${LIBTOOLIZE} ]] || die "Could not find libtoolize. Install libtool."
[[ -x ${ACLOCAL} ]]    || die "Could not find aclocal. Install automake."
[[ -x ${AUTOMAKE} ]]   || die "Could not find automake."

automagic() {
	log "Copying files..." >&2
	cp platform/unix/configure.ac .
	cp platform/unix/Makefile.am .

	log "Running genmodules..." >&2
	if ! bash platform/unix/genmodules "$1"; then
		echo "You should be doing this from the root directory of the project."
		exit 1
	fi

	log "Running autoheader..." >&2
	${AUTOHEADER} 2>&1 || return 1 # Gimmie config.h.in

	log "Running libtoolize..." >&2
	${LIBTOOLIZE} --force 2>&1 || return 1

	log "Running aclocal..." >&2
	${ACLOCAL} 2>&1 || return 1

	log "Running autoconf..." >&2
	${AUTOCONF} 2>&1 || return 1

	log "Running automake..." >&2
	${AUTOMAKE} -a 2>&1 || return 1
}

if [[ $1 == "-d" ]]; then
	shift 1
	automagic "$@" 2>&1
else
	(automagic "$@" > /dev/null) 2>&1
fi
if [[ $? -eq 1 ]]; then
	log "Failed, sadface."
	log "You can make this script more verbose running it in debug mode (-d)"
	log "This is generally a configuration error (I'm looking at you aclocal)"
	exit 1
else
	log "Success, carry on configuring."
fi