--
-- (C) 2013-20 - ntop.org
--

local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path

-- ##############################################

local Alert = { }

-- ##############################################

function Alert:new(subclass)
   local this = subclass or {}

   setmetatable(this, self)
   self.__index = self

   return this
end

-- ##############################################

function Alert:format() tprint("base format") end

-- ##############################################

function Alert:_build_type_info()
   return {
      -- Keys necessary for the engine
      alert_type = self.def_script,
      alert_subtype = self.alert_subtype,
      alert_granularity = self.alert_granularity,
      alert_severity = self.alert_severity,
      alert_type = self.def_script,
      -- Stuff added in subclasses by users
      alert_type_params = self.alert_type_params
   }
end

-- ##############################################

function Alert:trigger(entity_info, when, cur_alerts)
   local alerts_api = require "alerts_api"
   return alerts_api.trigger(entity_info, self:_build_type_info(), nil, cur_alerts)
end

-- ##############################################

function Alert:release(entity_info, when, cur_alerts)
   local alerts_api = require "alerts_api"
   return alerts_api.release(entity_info, self:_build_type_info(), nil, cur_alerts)
end

-- ##############################################

function Alert:set_def_script(def_script) self.def_script = def_script end
function Alert:set_creator(creator) self.create = creator end
function Alert:set_formatter(formatter) self.format = formatter end

-- ##############################################

function Alert:set_severity(severity)
   self.alert_severity = severity
end

-- ##############################################

function Alert:set_granularity(granularity)
   local alert_consts = require "alert_consts"
   self.alert_granularity = alert_consts.alerts_granularities[granularity]
end

-- ##############################################

function Alert:set_attacker(attacker) self.attacker = attacker end
function Alert:set_victim(victim) self.victim = victim end
function Alert:set_origin(origin) self.origin = origin end
function Alert:set_target(target) self.target = target end

-- ##############################################

return Alert

-- ##############################################