#!/bin/sh
set -e

# Functions
set_vars() {
	printf 'Setting vars...\n' >&2

	for i in "$@"; do
		sed -r \
			-e "s%@CONFIG@%${CONFIG}%" \
			-e "s%@LOGDIR@%${LOGDIR}%" \
			-e "s%@BASH@%${BASH}%" \
			< "$i".in > "$i"
	done
}

do_tell() {
	printf 'Executing: %s\n' "$*"
	"$@"
}

# Targets
target_userrc() {
	target='userrc'

	printf '%s\n' "Building $target..."

	set_vars "$target"
	do_tell chmod 755 "$target"
}

target_clean() {
	do_tell rm -f userrc
}

target_install() {
	mkdir -p "$BINDIR"

	do_tell cp userrc "${BINDIR}/userrc"
	do_tell chmod 755 "${BINDIR}/userrc"
}

target_all() {
	target_userrc
}

main() {
	while [ -n "$1" ]; do
		case "$1" in
			*=*) export "${1%%=*}=${1#*=}";;
			--) shift; break;;
			*) break;;
		esac
		shift
	done

	target="${1:-all}"

	# Build configuration
	. './config.mk.sh'

	printf '%s\n' "Building target: $target"

	"target_$target"
}

main "$@"