#!/bin/bash
#
# koha-common.bash-completion script for koha-* commands
#
# This file is part of Koha.
#
# Copyright 2013 Universidad Nacional de Cordoba
#                Tomas Cohen Arazi
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Koha; if not, see <http://www.gnu.org/licenses>.

_build_substract_switches()
{
    local substract

    for (( i=0; i < ${#COMP_WORDS[@]}-1; i++ )); do
        if [[ ${COMP_WORDS[i]} == -* ]]; then
            substract="$substract -e ${COMP_WORDS[i]}"
        fi
    done

    echo "$substract"
}

_build_substract_instances()
{
    local substract

    for (( i=0; i < ${#COMP_WORDS[@]}-1; i++ )); do
        substract="$substract -e ${COMP_WORDS[i]}"
    done

    echo "$substract"
}

_koha_list_cmd()
{
    local filter=$1

    local cur substract instancelist
    _get_comp_words_by_ref cur

    # Build a list of the already used words
    substract=`_build_substract_instances`

    if [[ "$substract" != "" ]]; then
        instancelist=$( koha-list $filter | grep -v -x $substract )
    else
        instancelist=$( koha-list $filer )
    fi

    COMPREPLY=( $(compgen -W "$instancelist" -- $cur ) )
}

_koha_email_disable()
{
    _koha_list_cmd "--email"
    return 0
}
complete -F _koha_email_disable koha-email-disable

_koha_email_enable()
{
    _koha_list_cmd "--noemail"
    return 0
}
complete -F _koha_email_enable koha-email-enable

_koha_sip_enabled_instances()
{
    _koha_list_cmd "--sip"
    return 0
}

# koha-*-sip autocomplete with sip-enabled instances
complete -F _koha_sip_enabled_instances koha-start-sip
complete -F _koha_sip_enabled_instances koha-restart-sip
complete -F _koha_sip_enabled_instances koha-stop-sip

_koha_sip_disabled()
{
    _koha_list_cmd "--nosip"
    return 0
}

# koha-enable-sip autocompletes with sip-disabled instances
complete -F _koha_sip_disabled koha-enable-sip

_koha_disabled_instances()
{
    _koha_list_cmd "--disabled"
    return 0
}

_koha_enabled_instances()
{
    _koha_list_cmd "--enabled"
    return 0
}

# koha-enable autocompletes with disabled instances
complete -F _koha_disabled_instances koha-enable

# koha-disable autocompletes with enabled instances
complete -F _koha_enabled_instances koha-disable

# koha-*-zebra autocomplete with enabled instances
complete -F _koha_enabled_instances koha-start-zebra
complete -F _koha_enabled_instances koha-restart-zebra
complete -F _koha_enabled_instances koha-stop-zebra

_koha_list()
{
    local cur opts substract

    COMPREPLY=()
    _get_comp_words_by_ref cur
    opts="--enabled --disabled --email --noemail --sip --nosip --help -h"

    # Build a list of the already used option switches
    for (( i=0; i < ${#COMP_WORDS[@]}-1; i++ )); do
        if [[ ${COMP_WORDS[i]} == -* ]]; then
            case ${COMP_WORDS[i]} in
                --disabled)
                    substract="$substract -e --enabled"; ;;
                --enabled)
                    substract="$substract -e --disabled"; ;;
                --email)
                    substract="$substract -e --noemail"; ;;
                --noemail)
                    substract="$substract -e --email"; ;;
                --sip)
                    substract="$substract -e --nosip"; ;;
                --nosip)
                    substract="$substract -e --sip"; ;;
                --help)
                    substract="$substract -e -h"; ;;
                -h)
                    substract="$substract -e --help"; ;;
            esac
            substract="$substract -e ${COMP_WORDS[i]}"
        fi
    done

    if [[ "$substract" != "" ]]; then
        opts=$( echo $opts | sed -e 's/ /\n/g'  | grep -v -x $substract )
    fi

    COMPREPLY=( $(compgen -W "$opts" -- $cur ) )

    return 0
}
complete -F _koha_list koha-list

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