#!/bin/sh

. /etc/repoctl.conf

function isingroup()
{
    grp="$1"
    for group in `groups`
    do if [ "$grp" = "$group" ]
    then 
	return 0
    fi
    done
    return 1
}

function inlist()
{
    k="$1"
    list="$2"
    for e in $list
    do
	if [ a"$k" = a"$e" ]
	then
	    return 0
	fi
    done
    return 1
}

function update_hdlist()
{
    repository="$1"
    fdeps="$repository/../../media_info/file-deps"
    test -f "$fdeps" && ofdeps="--file-deps $fdeps"
    $dryrun /usr/bin/genhdlist2 -v --versioned --allow-empty-media $ofdeps "$repository"
}

function update_hdlists()
{
    local distrorelease="$1"
    local section="$2"
    local sectionrepo="$3"

    for arch in $arches
    do
	update_hdlist "$distribdir/$distrorelease/$arch/media/$section/$sectionrepo"
	update_hdlist "$distribdir/$distrorelease/$arch/media/debug/$section/$sectionrepo"
    done
    update_hdlist "$distribdir/$distrorelease/SRPMS/$section/$sectionrepo"
    update_common_MD5SUM $distrorelease
}

function get_lock()
{
    local lockdir="$1"
    local waitdir="$lockdir/wait.$$"

    if mkdir "$lockdir"
    then
	return
    else
	if ! mkdir "$waitdir"
	then
	    get_lock "$lockdir"
	    return
	fi
	inotifywait -e delete_self "$waitdir"
    fi
}

function rm_lock()
{
    local lockdir="$1"
    if rmdir "$lockdir"
    then
	return
    fi
    local l=$(ls -tr "$lockdir" | head -1)
    rmdir "$lockdir/$l"
}

function get_repo_lock()
{
    local distrorelease="$1"
    local section="$2"
    local sectionrepo="$3"
    repolock="$lockdir/$distrorelease-$section-$sectionrepo.lock"
    get_lock "$repolock"
}

function rm_repo_lock()
{
    local distrorelease="$1"
    local section="$2"
    local sectionrepo="$3"
    repolock="$lockdir/$distrorelease-$section-$sectionrepo.lock"
    rm_lock "$repolock"
}

function get_distro_lock()
{
    local distrorelease="$1"
    local distrolock="$lockdir/$distrorelease"
    get_lock "$distrolock"
    for distrosection in $distrosections
    do
	for sectionrepo in $sectionsrepos
	do
	    get_repo_lock $distrorelease $distrosection $sectionrepo
	done
    done
}

function rm_distro_lock()
{
    local distrorelease="$1"
    local distrolock="$lockdir/$distrorelease"
    for distrosection in $distrosections
    do
	for sectionrepo in $sectionsrepos
	do
	    rm_repo_lock $distrorelease $distrosection $sectionrepo
	done
    done
    rm_lock "$distrolock"
}

function update_common_MD5SUM()
{
    distrorelease="$1"
    for arch in $arches
    do
	pushd "$distribdir/$distrorelease/$arch/media/media_info"
	if [ -z "$dryrun" ]
	then
	    /usr/bin/md5sum hdlist_* synthesis.* > MD5SUM
	fi
	popd
    done
}

function mirror_repository()
{
    distrorelease="$1"
    /usr/bin/rsync $mirror_rsync_options "$distribdir/$distrorelease/" "$finaldistribdir/$distrorelease/"
}

function check_distro_section()
{
    local distrorelease="$1"
    local section="$2"
    local sectionrepo="$3"

    if ! inlist "$distrorelease" "$distroreleases"
    then
	echo "Incorrect distrorelease $distrorelease" >&2
	exit 1
    fi

    if ! inlist "$section" "$distrosections"
    then
	echo "Incorrect section $section" >&2
	exit 1
    fi

    if ! inlist "$sectionrepo" "$sectionsrepos"
    then
	echo "Incorrect repository $sectionrepo" >&2
	exit 1
    fi
}

function move_pkg_files()
{
    srcdir="$1"
    destdir="$2"
    srcpkg="$3"
    output="$4"

    for file in "$srcdir/"*.rpm
    do
        fname=$(rpm -qp --qf '%{SOURCERPM}' "$file")
        if [ a"$fname" = a"$srcpkg" ]
        then
            $dryrun mv -v -f "$file" "$destdir" >> "$output"
        fi
    done
}

function del_pkg_files()
{
    pkgdir="$1"
    srcpkg="$3"
    output="$4"

    for file in "$pkgdir/"*.rpm
    do
        fname=$(rpm -qp --qf '%{SOURCERPM}' "$file")
        if [ a"$fname" = a"$srcpkg" ]
        then
            $dryrun rm -v -f "$file" >> "$output"
        fi
    done
}

function find_src_pkg()
{
    local distrorelease="$1"
    local section="$2"
    local sectionrepo="$3"
    local pkgname="$4"

    for file in "$distribdir/$distrorelease/SRPMS/$section/$sectionrepo/"*.rpm
    do
	fname=$(rpm -qp --qf '%{NAME}' "$file")
	if [ a"$fname" = a"$srcname" ]
	then
	    basename "$file"
	    return 0
	fi
    done
}

function move_pkg()
{
    local src_distrorelease="$1"
    local src_section="$2"
    local src_sectionrepo="$3"
    local dst_distrorelease="$4"
    local dst_section="$5"
    local dst_sectionrepo="$6"
    local srcname="$7"
    local output="$8"

    check_distro_section "$src_distrorelease" "$src_section" "$src_sectionrepo"
    check_distro_section "$dst_distrorelease" "$dst_section" "$dst_sectionrepo"

    srcpkg=$(find_src_pkg "$src_distrorelease" "$src_section" "$src_sectionrepo" "$srcname")

    if [ -z $srcpkg ]
    then
	echo "The package $srcname could not be found in $src_distrorelease/$src_section/$src_sectionrepo repository." >&2
	exit 2
    fi

    for arch in $arches
    do
	move_pkg_files "$distribdir/$src_distrorelease/$arch/media/$src_section/$src_sectionrepo" "$distribdir/$dst_distrorelease/$arch/media/$dst_section/$dst_sectionrepo/" "$srcpkg" "$output"
	move_pkg_files "$distribdir/$src_distrorelease/$arch/media/debug/$src_section/$src_sectionrepo" "$distribdir/$dst_distrorelease/$arch/media/debug/$dst_section/$dst_sectionrepo/" "$srcpkg" "$output"
    done
    $dryrun mv -v -f "$distribdir/$src_distrorelease/SRPMS/$src_section/$src_sectionrepo/$srcpkg" "$distribdir/$dst_distrorelease/SRPMS/$dst_section/$dst_sectionrepo/" >> "$output"
}

function del_pkg()
{
    local distrorelease="$1"
    local section="$2"
    local sectionrepo="$3"
    local srcname="$4"
    local output="$5"

    check_distro_section "$distrorelease" "$section" "$sectionrepo"

    srcpkg=$(find_src_pkg "$distrorelease" "$section" "$sectionrepo" "$srcname")

    #TODO
}