#!/bin/bash

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

if [ $# -lt 3 ]; then
	msg "usage: %s <repo-from> <repo-to> <pkgname|pkgbase> ..." "${0##*/}"
	exit 1
fi

args=("${@}")
repo_from="${args[0]}"
repo_to="${args[1]}"
ftppath_from="${FTP_BASE}/${repo_from}/os/"
ftppath_to="${FTP_BASE}/${repo_to}/os/"

if ! check_repo_permission "$repo_to" || ! check_repo_permission "$repo_from"; then
	die "You don't have permission to move packages from %s to %s" "${repo_from}" "${repo_to}"
fi

# TODO: this might lock too much (architectures)
for pkgarch in "${ARCHES[@]}"; do
	repo_lock "${repo_to}" "${pkgarch}" || exit 1
	repo_lock "${repo_from}" "${pkgarch}" || exit 1
done

# check if packages to be moved exist in svn and ftp dir
arch_svn checkout -q -N "${SVNREPO}" "${WORKDIR}/svn" >/dev/null
for pkgbase in "${args[@]:2}"; do
	arch_svn up -q "${WORKDIR}/svn/${pkgbase}" >/dev/null
	for pkgarch in "${ARCHES[@]}" 'any'; do
		svnrepo_from="${WORKDIR}/svn/${pkgbase}/repos/${repo_from}-${pkgarch}"
		if [ -r "${svnrepo_from}/PKGBUILD" ]; then
			pkgnames=($(. "${svnrepo_from}/PKGBUILD"; echo "${pkgname[@]}"))
			if [ ${#pkgnames[@]} -lt 1 ]; then
				die "Could not read pkgname"
			fi

			pkgver=$(. "${svnrepo_from}/PKGBUILD"; get_full_version "${epoch:-0}" "${pkgver}" "${pkgrel}")
			if [ -z "${pkgver}" ]; then
				die "Could not read pkgver"
			fi

			if [ "${pkgarch}" == 'any' ]; then
				tarches=("${ARCHES[@]}")
			else
				tarches=("${pkgarch}")
			fi

			for pkgname in "${pkgnames[@]}"; do
				for tarch in "${tarches[@]}"; do
					getpkgfile "${ftppath_from}/${tarch}/${pkgname}-${pkgver}-${pkgarch}"${PKGEXT} >/dev/null
				done
			done
			continue 2
		fi
	done
	die "%s not found in %s" "${pkgbase}" "${repo_from}"
done

msg "Moving packages from [%s] to [%s]..." "${repo_from}" "${repo_to}"

declare -A add_pkgs
declare -A remove_pkgs
for pkgbase in "${args[@]:2}"; do
	tag_list=""
	for pkgarch in "${ARCHES[@]}" 'any'; do
		svnrepo_from="${WORKDIR}/svn/${pkgbase}/repos/${repo_from}-${pkgarch}"
		svnrepo_to="${WORKDIR}/svn/${pkgbase}/repos/${repo_to}-${pkgarch}"

		if [ -f "${svnrepo_from}/PKGBUILD" ]; then
			if [ "${pkgarch}" == 'any' ]; then
				tarches=("${ARCHES[@]}")
			else
				tarches=("${pkgarch}")
			fi
			msg2 "%s (%s)" "${pkgbase}" "${tarches[*]}"
			pkgnames=($(. "${svnrepo_from}/PKGBUILD"; echo "${pkgname[@]}"))
			pkgver=$(. "${svnrepo_from}/PKGBUILD"; get_full_version "${epoch:-0}" "${pkgver}" "${pkgrel}")

			if [ -d "${svnrepo_to}" ]; then
				for file in $(arch_svn ls "${svnrepo_to}"); do
					arch_svn rm -q "${svnrepo_to}/$file@"
				done
			else
				mkdir "${svnrepo_to}"
				arch_svn add -q "${svnrepo_to}"
			fi

			for file in $(arch_svn ls "${svnrepo_from}"); do
				arch_svn mv -q -r HEAD "${svnrepo_from}/$file@" "${svnrepo_to}/"
			done
			arch_svn rm --force -q "${svnrepo_from}"
			tag_list+=", $pkgarch"

			for pkgname in "${pkgnames[@]}"; do
				for tarch in "${tarches[@]}"; do
					pkgpath=$(getpkgfile "${ftppath_from}/${tarch}/${pkgname}-${pkgver}-${pkgarch}"${PKGEXT})
					pkgfile="${pkgpath##*/}"

					ln -s "../../../${PKGPOOL}/${pkgfile}" "${ftppath_to}/${tarch}/"
					if [ -f "${FTP_BASE}/${PKGPOOL}/${pkgfile}.sig" ]; then
						ln -s "../../../${PKGPOOL}/${pkgfile}.sig" "${ftppath_to}/${tarch}/"
					fi
					add_pkgs[${tarch}]+="${FTP_BASE}/${PKGPOOL}/${pkgfile} "
					remove_pkgs[${tarch}]+="${pkgname} "
				done
			done
		fi
	done
	tag_list="${tag_list#, }"
	arch_svn commit -q "${WORKDIR}/svn/${pkgbase}" -m "${0##*/}: moved ${pkgbase} from [${repo_from}] to [${repo_to}] (${tag_list})"
done

for tarch in "${ARCHES[@]}"; do
	if [ -n "${add_pkgs[${tarch}]}" ]; then
		arch_repo_add "${repo_to}" "${tarch}" ${add_pkgs[${tarch}]}
		arch_repo_remove "${repo_from}" "${tarch}" ${remove_pkgs[${tarch}]}
	fi
done

for pkgarch in "${ARCHES[@]}"; do
	repo_unlock "${repo_from}" "${pkgarch}"
	repo_unlock "${repo_to}" "${pkgarch}"
done