-- File to conrol FusionPBX Lua services/monitors
-- @usage: 
--  # stop `call_flow_subscribe` monitor
--  fs_cli -x "lua service flow stop"
--  # stop `mwi_subscribe` monitor
--  fs_cli -x "lua service mwi stop"

require "resources.functions.config"

local log  = require "resources.functions.log".service
local file = require "resources.functions.file"

local destination = assert(argv[1], "No service name")
local command     = assert(argv[2], "No command")

local function service_status(name)
	local pid_file = scripts_dir .. "/run/" .. name .. ".tmp"
	return not not file.exists(pid_file)
end

local function send_control(name, cmd)
	local event = freeswitch.Event("CUSTOM", "fusion::service::control")
	event:addHeader('service-name', name)
	event:addHeader('service-command', cmd)
	event:fire()
end

local known_commands = {}

known_commands.status = function()
	log.noticef( 'service %s: %s', destination,
		service_status(destination) and 'RUNNING' or 'STOPPED'
	)
end;

known_commands.start = function()
	if service_status(destination) then
		log.warningf('service %s already started', destination)
		return
	end

	--! @todo implemnt start command
	log.err('Not implemted yet')
end;

known_commands.restart = function()
	if not service_status(destination) then
		log.warningf('service %s not started', destination)
		return
	end

	--! @todo implemnt start command
	log.err('Not implemted yet')
end;

known_commands.stop = function()
	if not service_status(destination) then
		log.warningf('service %s not started', destination)
		return
	end

	log.noticef('stopping service: %s', destination)
	send_control(destination, 'stop')
end;

-- try handle known commands
local cmd = known_commands[command]
if cmd then return cmd() end

log.warningf('send raw command `%s` to service %s', command, destination)

-- forward command to service itself
send_control(destination, command)