module:set_global();

local configmanager = require "core.configmanager";

local hostmanager = require"core.hostmanager";

local function reload_components()

        --- Check if host configuration is a component

        --- @param h hostname

        local function config_is_component(h)

            return h ~= nil and configmanager.get(h, "component_module") ~= nil; -- If a host has a component module defined within it, then it is a component

        end;

        --- Check if host / component configuration is active

        --- @param h hostname / component name

        local function component_is_new(h)

                return h ~= "*" and not hosts[h]; -- If a host is not defined in hosts and it is not global, then it is new

        end

        --- Search for new components that are not activated

        for h, c in pairs(configmanager.getconfig()) do

            if config_is_component(h) and component_is_new(h) then

                module:log ("debug", "Loading new component %s", h );

                hostmanager.activate(h, c);

            end

        end

        --- Search for active components that are not enabled in the configmanager anymore

        local enabled = {}

        for h in pairs(configmanager.getconfig()) do

            enabled[h] = true; -- Set true if it is defined in the configuration file

        end

        for h, c in pairs(hosts) do

            if not enabled[h] then -- Deactivate if not present in the configuration file

                hostmanager.deactivate(h,c);

            end

        end

end

module:hook("config-reloaded", reload_components);