#!/bin/bash

log()
{
	echo $@
}

err()
{
	log $@
}

fatal()
{
	err $@
	exit 1
}

usage()
{
	echo "$myname [-h] [-s summary] [-d description] [-g pkg-group] name"
	[ "$1" ] && exit $1
}

cat_Makefile()
{
	cat <<-EOT
	TOPDIR = .

	include \$(TOPDIR)/make/proj.mk
	include \$(MODDIR)/make/topdir.mk
	EOT
}

cat_VERSION()
{
	cat <<-EOT
	1.0.0-0-dev
	EOT
}

cat_make_Makefile()
{
	cat <<-EOT
	TOPDIR = ..

	include \$(TOPDIR)/make/proj.mk
	include \$(MODDIR)/make/make.mk
	EOT
}

cat_make_proj_mk()
{
	cat <<-EOT
	# to be included from inside the project directory

	CVS_PROJ_DIR        ?= \$(TOPDIR)/..

	ifeq (\$(TARGET),mingw)
	FLAVOUR_PATH_PREFIX  = win32/
	endif
	MODDIR               = \$(firstword \$(wildcard \$(CVS_PROJ_DIR)/jw-build /opt/\$(FLAVOUR_PATH_PREFIX)jw-build))

	USE_PROJECT_LIB      = false
	HDRDIR_SCOPE_SUFFIX  = \$(PROJECT)
	EOT
}

cat_make_project_conf()
{
	local login=`whoami | xargs getent passwd | cut -d: -f5`
	[ "$login" ] && login=$JANWARE_USER
	[ "$login" ] && login=`whoami`

	cat <<-EOT
	[summary]
	$summary

	[description]
	$description

	[global]
	group = "$pkg_group"
	subpackages = $subpackages
	license = Copyright (c) $login, all rights reserved
	jw-maintainer = $JANWARE_USER

	[build]
	libname = none

	[pkg.required.jw]
	run = jw-build-run = VERSION
	devel = $name-run = VERSION-REVISION, jw-build-devel = VERSION
	build = jw-build-devel
	EOT
}

cat_gitignore()
{
	cat <<-EOT
	*.done
	*.dep.mk
	*.o
	*.so.*
	*.so
	*.a
	*.rep
	ld-*.conf
	*.ldscript
	*.pc
	$name
	*_generated_*
	*.secret
	local.mk
	EOT
}

# ---------------------- here we go

myname=`basename $0`
projdir=.

summary=
description=
subpackages="run devel"

eval set -- `getopt -- hd:s:p:g: "$@"`

while [ "$1" != -- ]; do
case $1 in
	-d)
		eval description=\"$2\"
		shift;;
	-s)
		eval summary=\"$2\"
		shift;;
	-p)
		eval subpackages=\"$2\"
		shift;;
	-g)
		eval pkg_group=\"$2\"
		shift;;
	-h)
		usage 0;;
	*)
		usage 1;;
esac
shift
done
shift

[ -z "$description" ] && description="$summary"
[ -z "$summary" ] && summary="$description"
[ -z "$pkg_group" ] && pkg_group="Amusements/Teaching/Other"

[ -f $projdir/Makefile ] || {
	fatal "$projdir doesn't contain a Makefile"
}

name="$1"

[ -d $projdir/$name ] && {
	fatal "$projdir/$name already exists"
}

set -e

mkdir -p $projdir
mkdir $name
cd $projdir/$name

mkdir make
cat_Makefile > Makefile
cat_make_Makefile > make/Makefile
cat_VERSION > VERSION
cat_make_proj_mk > make/proj.mk
cat_make_project_conf > make/project.conf
cat_gitignore > .gitignore

log Successfully created project template \"$name\".