#!/usr/bin/env bash
set -e

source $(dirname $0)/env.sh

cd $LUNA_ROOT

PORT_NAME=$1

if ! [ -f ports/$PORT_NAME/PACKAGE ]
then
    echo "Package $PORT_NAME does not exist. Make sure there is a valid PACKAGE file in the appropriate directory!"
    exit 1
fi

export WORKDIR=$LUNA_ROOT/ports/temp/

show_error()
{
    echo $1
    exit 1
}

source ports/$PORT_NAME/PACKAGE

[ -z ${name+x} ] && show_error "error: The port's PACKAGE file does not have a 'name' key."
[ -z ${version+x} ] && show_error "error: The port's PACKAGE file does not have a 'version' key."
[ -z ${format+x} ] && show_error "error: The port's PACKAGE file does not have a 'format' key."
[ -z ${url+x} ] && show_error "error: The port's PACKAGE file does not have a 'url' key."

export portdir=$LUNA_ROOT/ports/$name/
export srcdir=${srcdir:-$WORKDIR/$name-$version}
export builddir=$WORKDIR/build-$name
export installdir=$WORKDIR/pkgroot-$name

mkdir -p $WORKDIR
cd $WORKDIR

# Download package sources
case $format in
    tar)
        [ -z ${output+x} ] && show_error "error: The 'tar' download format needs an 'output' key."
        [ -z ${sha256sum+x} ] && show_error "error: The 'tar' download format needs a 'sha256sum' key."
        echo "Downloading tarball for $name..."
        wget $url --quiet
        echo "$sha256sum $output" | sha256sum -c
        tar xf $output
        rm $output
        ;;
    git)
        echo "Cloning repository for $name..."
        git clone $url $srcdir
        if ! [ -z ${tag+x} ]; then
            cd $srcdir
            git checkout $tag
            cd -
        fi
        ;;
    *)
        show_error "error: Unrecognized 'format' key in PACKAGE file: '$format'"
        ;;
esac

mkdir -p $builddir
cd $builddir

declare -F do_patch &>/dev/null && do_patch

echo "Configuring $name..."

if [ "$use_default_configure" = "true" ]; then
    $srcdir/configure --host=$LUNA_ARCH-luna --prefix=/usr
else
    declare -F do_configure &>/dev/null || show_error "error: If not using the default configure line, the PACKAGE file must provide a 'do_configure' function."
    do_configure
fi

echo "Building $name..."

export MAKEJOBS=$(nproc)

if [ "$default_build_make" = "true" ]; then
    make -j$MAKEJOBS
else
    declare -F do_build &>/dev/null || show_error "error: If not using a default build preset, the PACKAGE file must provide a 'do_build' function."
    do_build
fi

echo "Installing $name..."

export DESTDIR=$installdir

if [ "$default_install_make" = "true" ]; then
    make install
else
    declare -F do_install &>/dev/null || show_error "error: If not using a default install preset, the PACKAGE file must provide a 'do_install' function."
    do_install
fi

cd $installdir

tar czf $LUNA_ROOT/ports/out/$name-$version.tar.gz *

cd $LUNA_ROOT
rm -rf $WORKDIR