#!/bin/bash

if [ $# -ne 4 ]; then
	echo "usage: $(basename $0) <pkgname|packagebase> <repo-from> <repo-to> <arch>"
	exit 1
fi

. "$(dirname $0)/db-functions"
. "$(dirname $0)/config"

packagebase="$1"
repofrom="$2"
repoto="$3"
_arch="$4"

ftppath_from="$FTP_BASE/$repofrom/os/"
ftppath_to="$FTP_BASE/$repoto/os/"
svnrepo_from="$repofrom-$_arch"
svnrepo_to="$repoto-$_arch"

[ "$UID" = "" ] && UID=$(uid)

WORKDIR="$TMPDIR/db-move.$svnrepo_from.$svnrepo_to.$UID"

cleanup() {
    trap '' 0 2
	# unlock
    repo_unlock $repoto $_arch
    repo_unlock $repofrom $_arch
	rm -rf "$WORKDIR"
	[ "$1" ] && exit $1
}

ctrl_c() {
	echo "Interrupted" >&2
	cleanup 0
}

die() {
	echo "$*" >&2
	cleanup 1
}

trap ctrl_c 2
trap cleanup 0

repo_lock $repoto $_arch
repo_lock $repofrom $_arch

/bin/mkdir -p "$WORKDIR"

cd "$WORKDIR"
/usr/bin/svn checkout -N $SVNREPO checkout
cd checkout

/usr/bin/svn up -q $packagebase
if [ -d "$packagebase/repos/$svnrepo_from" ]; then
    . "$packagebase/repos/$svnrepo_from/$BUILDSCRIPT"
    
    for i in ${pkgname[@]}; do
        _pkgfile="$i-$pkgver-$pkgrel-$_arch$PKGEXT"
        if [ ! -f "$ftppath_from/${_arch}/$_pkgfile" ]; then
            die "error: package file '$_pkgfile' not found in repo '$repofrom'"
        fi
    done

    if [ -d "$packagebase/repos/$svnrepo_to" ]; then
        echo "    Removing existing package from subversion"
        /usr/bin/svn rm --force -q "$packagebase/repos/$svnrepo_to"
        /usr/bin/svn commit -q -m "$(basename $0): $packagebase removed by $(id -un) for move to $repoto"
    fi

    echo "    Moving svn entries"
    /usr/bin/svn mv -r HEAD "$packagebase/repos/$svnrepo_from" "$packagebase/repos/$svnrepo_to"
    /usr/bin/svn commit -m "$(basename $0): moved $packagebase from [$repofrom] to [$repoto] ($_arch)"

    echo "    Moving package file and updating DBs"
    cd "$WORKDIR"
    [ -d build/ ] || mkdir build
    cd build/

	if [ "${_arch}" == "any" ]; then
		arches="i686 x86_64"
	else
		arches="${_arch}"
	fi

    for architecture in $arches; do
		# copy the db file into our working area
		if [ -f "$ftppath_from/$architecture/$repofrom$DBEXT" ]; then
		    /bin/cp "$ftppath_from/$architecture/$repofrom$DBEXT" .
		    /usr/bin/repo-remove -q "$repofrom$DBEXT" ${pkgname[@]} || die "Error in repo-remove"
		    #use '*' to move the old DB too
		    mv $repofrom$DBEXT* "$ftppath_from/$architecture"
		    echo "    Package files will be cleaned up automatically"
		fi

		if [ -f "$ftppath_to/$architecture/$repoto$DBEXT" ]; then
		    /bin/cp "$ftppath_to/$architecture/$repoto$DBEXT" .
		fi

		for i in ${pkgname[@]}; do
			_pkgfile="$i-$pkgver-$pkgrel-$_arch$PKGEXT"
			/bin/cp "$ftppath_from/$architecture/$_pkgfile" .
			/usr/bin/repo-add -q "$repoto$DBEXT" $_pkgfile || die "Error in repo-add $_pkgfile"
		done
		#use '*' to move the old DB too
		mv $repoto$DBEXT* $ftppath_to/$architecture
        for i in ${pkgname[@]}; do
            _pkgfile="$i-$pkgver-$pkgrel-$_arch$PKGEXT"
            if [ "${_arch}" == "any" ]; then
                mv ${_pkgfile} $ftppath_to/any
                ln -s ../any/${_pkgfile} $ftppath_to/$architecture/
            else
                mv ${_pkgfile} $ftppath_to/$architecture
            fi
        done
	done
else
    die "Error: $packagebase is not in repo $repofrom"
fi

cleanup