#!/bin/sh /etc/rc.common
#

START=30
USE_PROCD=1

EXTRA_COMMANDS="suspend resume query status"
EXTRA_HELP="	suspend	Suspend adblock processing
	resume	Resume adblock processing
	query	<DOMAIN> Query active blocklists for specific domains
	status	Print runtime information"

adb_init="/etc/init.d/adblock"
adb_script="/usr/bin/adblock.sh"
adb_pidfile="/var/run/adblock.pid"

boot()
{
    adb_boot=1
    rc_procd start_service
}

start_service()
{
    if [ $("${adb_init}" enabled; printf "%u" ${?}) -eq 0 ]
    then
        if [ -n "${adb_boot}" ]
        then
            local trigger="$(uci_get adblock global adb_trigger)"
            if [ "${trigger}" != "timed" ]
            then
                return 0
            fi
        fi
        local nice="$(uci_get adblock extra adb_nice)"
        procd_open_instance "adblock"
        procd_set_param command "${adb_script}" "${@}"
        procd_set_param pidfile "${adb_pidfile}"
        procd_set_param nice ${nice:-0}
        procd_set_param stdout 1
        procd_set_param stderr 1
        procd_close_instance
    fi
}

reload_service()
{
    rc_procd start_service reload
}

stop_service()
{
    rc_procd "${adb_script}" stop
    rc_procd start_service
}

restart()
{
    rc_procd start_service restart
}

suspend()
{
    [ -s "${adb_pidfile}" ] && return 1
    rc_procd "${adb_script}" suspend
}

resume()
{
    [ -s "${adb_pidfile}" ] && return 1
    rc_procd "${adb_script}" resume
}

query()
{
    [ -s "${adb_pidfile}" ] && return 1
    rc_procd "${adb_script}" query "${1}"
}

status()
{
    local key keylist value rtfile="$(uci_get adblock extra adb_rtfile)"

    rtfile="${rtfile:-"/tmp/adb_runtime.json"}"
    if [ -s "${rtfile}" ]
    then
        printf "%s\n" "::: adblock runtime information"
        json_load "$(cat "${rtfile}" 2>/dev/null)"
        json_select data
        json_get_keys keylist
        for key in ${keylist}
        do
            json_get_var value "${key}"
            printf "  + %-15s : %s\n" "${key}" "${value}"
        done
    else
        printf "%s\n" "::: no adblock runtime information available"
    fi
}

service_triggers()
{
    local trigger="$(uci_get adblock global adb_trigger)"
    local delay="$(uci_get adblock extra adb_triggerdelay)"

    if [ "${trigger}" != "none" ] && [ "${trigger}" != "timed" ]
    then
        PROCD_RELOAD_DELAY=$((${delay:-2} * 1000))
        procd_add_interface_trigger "interface.*.up" "${trigger}" "${adb_init}" start
    fi
    procd_add_reload_trigger "adblock"
}