#!/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

source ports/$PORT_NAME/PACKAGE

IS_NEW_VERSION=0

if ! [ -f ports/out/$name-$version.tar.gz ]; then
    tools/make-package.sh $PORT_NAME
    IS_NEW_VERSION=1
fi

PORT_FILES=$LUNA_BASE/usr/share/pkgdb/$name.files

if [ -f $PORT_FILES ]
then
    if [ "$IS_NEW_VERSION" -eq "0" ]; then
        echo "Package $PORT_NAME version $version is already installed!"
        exit 0
    fi
    echo "Package $PORT_NAME is already installed! Updating to version $version."
    tools/uninstall-package.sh $name
fi

mkdir -p $LUNA_BASE/usr/share/pkgdb/

cd $LUNA_BASE

find -type f | sed 's|^./||'  > /tmp/before.list

tar -C $LUNA_BASE -xf $LUNA_ROOT/ports/out/$name-$version.tar.gz

find -type f | sed 's|^./||' > /tmp/after.list

awk 'FNR==NR {a[$0]++; next} !($0 in a)' /tmp/before.list /tmp/after.list > $LUNA_BASE/usr/share/pkgdb/$name.files

echo "Package $name version $version successfully installed!"