#!/bin/sh
#
# Copyright (C) 2008 Jonathan Moore Liles
#

. scripts/colors

if [ $# -gt 0 ]
then
    echo This is not an autoconf script. Run it without any options and you will be prompted.
    exit 255
fi

fatal ()
{
    echo "$BOLD$RED$*$SGR0"
    exit 255
}

ask ()
{
   echo -n "$1 [$BOLD$3$SGR0] "
   read R
   echo "${2}=${R:-$3}" >> make.conf
}

ok ()
{
    echo "$BOLD${GREEN}ok$SGR0."
}

failed ()
{
    echo "$BOLD${RED}failed!$SGR0"
}

echo "-- Configuration:"

# get the old values
if [ -f make.conf ]
then
    OIFS="$IFS"
    IFS=''
    eval "`sed -n '/^## options/{ : i; /^## libs/{ q }; p; n; b i }' make.conf`"
    IFS="$OIFS"
fi

echo "# This is a generated file. Any changes may be lost!" > make.conf

echo "## options" >> make.conf

ask "Install prefix?" prefix ${prefix:-/usr/local}
ask "Use LASH?" USE_LASH ${USE_LASH:-yes}
ask "Build for debugging?" MAINTAINER_MODE ${MAINTAINER_MODE:-no}

echo "## libs/flags" >> make.conf

# tests

echo -n "Checking for ${BOLD}FLTK${SGR0}..."

FLTK_VERSION=`fltk-config --version`

FLTK_VERSION_MAJOR=`echo $FLTK_VERSION | cut -d'.' -f1`
FLTK_VERSION_MINOR=`echo $FLTK_VERSION | cut -d'.' -f2`
FLTK_VERSION_PATCH=`echo $FLTK_VERSION | cut -d'.' -f3`

if ! ( [ $FLTK_VERSION_MAJOR -ge 1 ] && [ $FLTK_VERSION_MINOR -ge 1 ] && [ $FLTK_VERSION_PATCH -ge 8 ] )
then
    failed
    fatal "The installed FLTK version ($FLTK_VERSION) is too old."
else
    ok
fi

echo "FLTK_LIBS=`fltk-config --use-images --ldflags`" >> make.conf

# 

check ()
{
    echo -n "Checking for $BOLD$1$SGR0..."
    if ! pkg-config --atleast-version $2 $3
    then
        failed
        fatal "$1 not installed or too old."
    fi

    ok
    return 0
}

check JACK 0.103.0 jack && echo "JACK_LIBS=`pkg-config --libs jack`" >> make.conf
check libSNDFILE 1.0.17 sndfile && echo "SNDFILE_LIBS=`pkg-config --libs sndfile`" >> make.conf

grep -q 'USE_LASH=yes' make.conf &&
check LASH 0.5.4 lash-1.0 &&
( echo "LASH_LIBS=`pkg-config --libs lash-1.0`" >> make.conf
  echo "LASH_CFLAGS=-DUSE_LASH `pkg-config --cflags lash-1.0`" >> make.conf )

echo "-- Configuration complete."