#!/bin/bash

usage()
{
    cat <<EOF
Usage: $(basename $0) [OPTIONS] NAME

This script assists in setting up a default autotools project.

OPTIONS:
    --help, -h      Show this message
    --author, -a    Set the project's author
    --target, -t    Set the target directory
EOF
}


run()
{
    curdir="$PWD"
    echo -n "Creating project structure..."
    mkdir -p ${targetdir}
    cd "${targetdir}"
    cat > ./configure.ac <<EOF
AC_INIT( [${projectname}], [0.1], [${author}] )
AM_INIT_AUTOMAKE([-Wall -Werror foreign])
AC_PROG_CC
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([
    Makefile
    src/Makefile
])
AC_OUTPUT
EOF
    mkdir -p ./src

    cat > ./Makefile.am <<EOF
SUBDIRS = src
dist_doc_DATA = README
EOF

    cat > ./src/Makefile.am <<EOF
bin_PROGRAMS = ${projectname}
${projectname}_SOURCES = main.c
EOF

    touch README
    autoreconf --install &> /dev/null
    cd "$curdir"
    echo "Done."

}

OPTIONS=`getopt -l help,author:,target: ha:t: "$@"`
let ret=$?
if [ $ret -eq 1 ];then
    usage
    exit 2
fi

set -- `getopt -l help,author:,target: ha:t: "$@"`
[ $# -lt 1 ] && usage && exit 1 #Failed to get command line parameters

while [ $# -gt 0 ];do
    case "$1" in
#Help options
        --help)
            usage
            exit 2
        ;;
        -h)
            usage
            exit 2
        ;;
#Set the author
        --author)
            author="${2//\'}"
            shift
        ;;
        -a)
            author="${2//\'}"
            shift
        ;;
#Set the target
        --target)
            targetdir="${2%\'}"
            targetdir="${targetdir#\'}"
            shift
        ;;
        -t)
            targetdir="${2%\'}"
            targetdir="${targetdir#\'}"
            shift
        ;;


#All of our default parameter stuff goes below here
        --)
            projectname="${2//\'}"
            shift
            break
        ;;

        --*)
            usage
            exit 2
        ;;

        -*)
            usage
            exit 2
        ;;

        *)
            break
        ;;
    esac
    shift
done

#Double check all of our variables
[[ -z "$projectname" ]] && usage && exit 2
[[ -z "$author" ]] && author="unknown@unknown.com"
[[ -z "$targetdir" ]] && targetdir="."

run