#!/bin/bash
# Bash arithmetic functions used so don't substitute plain sh
#
# Guralp Configuration System
#   Copyright (c) 2009-2012 Guralp Systems Ltd. All rights reserved.
#
#   gdi2miniseed GDI mini-SEED compressor module

# Handle the navbar query without loading anything
if [ "X$1" == "X--navbar" ]
then
        echo "servicestop Services"
        echo "servicessub/gdi2miniseed gdi2miniseed"
        echo "gdi2miniseed/$3 $3"
        exit 0
fi

# Load support functions
script_dir=$(dirname $0)
. $script_dir/functions.sh
. $script_dir/svc_funcs.sh
. $script_dir/gdi-base_link.sh

name="$2"
sel="$3"

CFGFILE="$CONFIGDIR/$name/${sel}.local"
CTLFILE="$CONFIGDIR/$name/${sel}.ctl.local"
SRVBASE="$SERVDIR/$name"


do_read() {
    local mapnum entry have_channel_map src dest

    # Standard control info
    gcs_svc_read || return 1

    # Now the service type dependant variables

    ## Global
    gcs_var "d_dbdir"       "/var/lib/${name}.${sel}"
    gcs_var "d_buffer_size" "1"
    gcs_var "d_record_size" "2048"
    gcs_var "d_ms_integer_compression" "STEIM1"

    have_channel_map=0

    if [ -r "$CFGFILE" ]
    then
        gcs_var_o2 "dbdir"          ""
        gcs_var_o2 "buffer_size"    ""
        gcs_var_o2 "record_size"    ""
        gcs_var_o2 "ms_integer_compression" ""

        ## channel map
        for entry in $(gcs_list_varcf2_sections "${CFGFILE}")
        do
            if [ "${entry}" == "channel_map" ]
            then
                have_channel_map=1
                break
            fi
        done

        gcs_gdi_base_iselect "$(gcs_get_varcf2 "gdi_socket" "${CFGFILE}" "")" "sink"
    else
        gcs_gdi_base_iselect "" "sink"
    fi

    mapnum=0
    ignore_unmapped=0
    if [ "${have_channel_map}" -eq 0 ]
    then
        gcs_var "o_channel_map_mode" "automatic"
    else
        entry="$(gcs_get_varcf2 "reject_unfiltered_channels" "${CFGFILE}" "")"
        case "${entry}" in
        [Tt][Rr][Uu][Ee]|1)
            ignore_unmapped=1
            gcs_var "o_channel_map_mode" "manual"
            ;;
        *)
            gcs_var "o_channel_map_mode" "semi"
            ;;
        esac

        # Source command after done to maintain loop body in this context
        while read -r src dest
        do
            gcs_var "o_channel_map_src${mapnum}" "${src}"
            gcs_var "o_channel_map_dest${mapnum}" "${dest}"
            ((++mapnum))
        done < <(gcs_list_varcf2 "${CFGFILE}" "channel_map")
    fi

    if [ "${ignore_unmapped}" -eq 0 ]
    then
        while read -r src dest
        do
            [ -z "${src}" -o -z "${dest}" ] && continue

            if [ -r "$CFGFILE" ]
            then
                entry="$(gcs_get_varcf2 "${src}" "${CFGFILE}" "channel_map")"
                [ -z "${entry}" ] || continue
            fi

            gcs_var "o_channel_map_src${mapnum}" "${src}"
            gcs_var "o_channel_map_dest${mapnum}" "${dest}"
            ((++mapnum))
        done < <(seedmap ${GDI_SOCKET_PATH})
    fi
}



do_check() {
    gcs_read_vars

    # Standard service control/info vars
    gcs_svc_check

    # Service dependant variables
    # Most of the checks are done by the main engine

    gcs_gdi_base_dereference "sink"

    if [ "${new_channel_map_mode}" == "manual" ]
    then
        check_table_not_empty "channel_map" "channel_map_src" \
            "No channels have been mapped."
    fi
}



do_write_channel_map() {
    local -i i
    local src dest

    for (( i = 0 ; i < $new_channel_map_rows ; i++ ))
    do
        eval src="\${new_channel_map_src${i}}"
        [ -z "${src}" ] && continue
        eval dest="\${new_channel_map_dest${i}}"
        gcs_set_varcf2 "${src}" "${CFGFILE}" "${dest}" "channel_map"
    done
}

do_write() {
    do_check
    if (( gcs_errors > 0 ))
    then
        return
    fi

    if gcs_truefalse "${new_delete:-false}"
    then
        gcs_svc_delete "$name" "$sel"
    fi

    # Standard service controls
    gcs_ensure_cfgfile_exists $CTLFILE
    gcs_set_varf DESC $CTLFILE "$desc"

    # Now the service type dependant variables
    gcs_ensure_cfgfile_exists "$CFGFILE"

    ## Global
    gcs_set_varcf2 "application_description"    "${CFGFILE}" "${new_desc}"              ""
    gcs_set_varcf2 "dbdir"                      "${CFGFILE}" "${new_dbdir}"             ""
    gcs_set_varcf2 "socket_mode"                "${CFGFILE}" "0666"                     ""
    gcs_set_varcf2 "buffer_size"                "${CFGFILE}" "${new_buffer_size}"       ""
    gcs_set_varcf2 "record_size"                "${CFGFILE}" "${new_record_size}"       ""
    gcs_set_varcf2 "ms_integer_compression"     "${CFGFILE}" "${new_ms_integer_compression}" ""
    gcs_set_varcf2 "gdi_socket"                 "${CFGFILE}" "${new_gdi_socket}"        ""

    ## Channel map
    gcs_clear_varcf2_section "${CFGFILE}" "channel_map"

    case "${new_channel_map_mode}" in
    automatic)
        gcs_set_varcf2 "reject_unfiltered_channels" "${CFGFILE}" "" ""
        ;;
    semi)
        gcs_set_varcf2 "reject_unfiltered_channels" "${CFGFILE}" "False" ""
        do_write_channel_map
        ;;
    manual)
        gcs_set_varcf2 "reject_unfiltered_channels" "${CFGFILE}" "True" ""
        do_write_channel_map
        ;;
    esac

    # Update the service script
    gcs_update_svc "$name" "$sel" "$enable" "$desc" "$CFGFILE" "$CTLFILE" \
            "$SRVBASE" "$new_socket"
    
    gcs_svc_reload "$name" "$sel"
}



case "X$1" in
X--check)   do_check    ;;
X--write)   do_write    ;;
X--read)    do_read     ;;
*)          exit 1      ;;
esac

gcs_cleanup
exit 0

# vim: ts=4:sw=4:expandtab