--- **Ops** - (R2.5) - AI Flight Group for Ops.
--
-- **Main Features:**
--
--    * Nice stuff.
--
-- ===
--
-- ### Author: **funkyfranky**
-- @module Ops.FlightGroup
-- @image OPS_FlightGroup.png


--- FLIGHTGROUP class.
-- @type FLIGHTGROUP
-- @field #string ClassName Name of the class.
-- @field #boolean Debug Debug mode. Messages to all about status.
-- @field #string sid Class id string for output to DCS log file.
-- @field #table element Table of elements, i.e. units of the group.
-- @extends AI.AI_Air#AI_AIR

--- Be surprised!
--
-- ===
--
-- ![Banner Image](..\Presentations\CarrierAirWing\FLIGHTGROUP_Main.jpg)
--
-- # The FLIGHTGROUP Concept
--
--
--
-- @field #FLIGHTGROUP
FLIGHTGROUP = {
  ClassName      = "FLIGHTGROUP",
  sid            =   nil,
  groupname      =   nil,
  element        =    {},
  taskqueue      =    {},
}


--- Status of flight group element.
-- @type FLIGHTGROUP.ElementStatus
-- @field #string 

--- Flight group element.
-- @type FLIGHTGROUP.Element
-- @param #string name Name of the element.
-- @param Wrapper.Unit#UNIT unit Element unit object.
-- @param #string status Status, i.e. born, parking, taxiing.

--- Flight group tasks.
-- @type FLIGHTGROUP.Task
-- @param #string INTERCEPT Intercept task.
-- @param #string CAP Combat Air Patrol task.s
-- @param #string BAI Battlefield Air Interdiction task.
-- @param #string SEAD Suppression/destruction of enemy air defences.
-- @param #string STRIKE Strike task.
-- @param #string AWACS AWACS task.
-- @param #string TANKER Tanker task.
FLIGHTGROUP.Task={
  INTERCEPT="Intercept",
  CAP="CAP",
  BAI="BAI",
  SEAD="SEAD",
  STRIKE="Strike",
  CAS="CAS",
  AWACS="AWACS",
  TANKER="Tanker",
}

--- FLIGHTGROUP class version.
-- @field #string version
FLIGHTGROUP.version="0.0.1"

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- TODO list
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

-- TODO: A lot!

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Constructor
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

--- Create a new FLIGHTGROUP class object.
-- @param #FLIGHTGROUP self
-- @param Wrapper.Group#GROUP AIGroup The AI flight group.
-- @return #FLIGHTGROUP self
function FLIGHTGROUP:New(AIGroup)

  -- Inherit everything from WAREHOUSE class.
  local self=BASE:Inherit(self, AI_AIR:New( AIGroup )) -- #FLIGHTGROUP

  if not self then
    BASE:E(string.format("ERROR: Could not find flight group!"))
    return nil
  end
  
  self.groupname=AIGroup:GetName()

  -- Set some string id for output to DCS.log file.
  self.sid=string.format("FLIGHTGROUP %s |", self.groupname)

  -- Add FSM transitions.
  --                 From State  -->   Event      -->     To State
  self:AddTransition("*",             "AirwingStatus",    "*")           -- FLIGHTGROUP status update.
  self:AddTransition("*",             "RequestCAP",       "*")           -- Request CAP flight.
  self:AddTransition("*",             "RequestIntercept", "*")           -- Request Intercept.
  self:AddTransition("*",             "RequestCAS",       "*")           -- Request CAS.
  self:AddTransition("*",             "RequestSEAD",      "*")           -- Request SEAD.

  ------------------------
  --- Pseudo Functions ---
  ------------------------

  --- Triggers the FSM event "Start". Starts the FLIGHTGROUP. Initializes parameters and starts event handlers.
  -- @function [parent=#FLIGHTGROUP] Start
  -- @param #FLIGHTGROUP self

  --- Triggers the FSM event "Start" after a delay. Starts the FLIGHTGROUP. Initializes parameters and starts event handlers.
  -- @function [parent=#FLIGHTGROUP] __Start
  -- @param #FLIGHTGROUP self
  -- @param #number delay Delay in seconds.

  --- Triggers the FSM event "Stop". Stops the FLIGHTGROUP and all its event handlers.
  -- @param #FLIGHTGROUP self

  --- Triggers the FSM event "Stop" after a delay. Stops the FLIGHTGROUP and all its event handlers.
  -- @function [parent=#FLIGHTGROUP] __Stop
  -- @param #FLIGHTGROUP self
  -- @param #number delay Delay in seconds.

  --- Triggers the FSM event "SkipperStatus".
  -- @function [parent=#FLIGHTGROUP] AirwingStatus
  -- @param #FLIGHTGROUP self

  --- Triggers the FSM event "SkipperStatus" after a delay.
  -- @function [parent=#FLIGHTGROUP] __AirwingStatus
  -- @param #FLIGHTGROUP self
  -- @param #number delay Delay in seconds.


  --- Triggers the FSM event "RequestCAP".
  -- @function [parent=#FLIGHTGROUP] RequestCAP
  -- @param #FLIGHTGROUP self
  -- @param Core.Point#COORDINATE coordinate
  -- @param #number altitude Altitude
  -- @param #number leg Race track length.
  -- @param #number heading Heading in degrees.
  -- @param #number speed Speed in knots.
  -- @param #FLIGHTGROUP.Squadron squadron Explicitly request a specific squadron.


  -- Debug trace.
  if true then
    self.Debug=true
    BASE:TraceOnOff(true)
    BASE:TraceClass(self.ClassName)
    BASE:TraceLevel(1)
  end

  return self
  
end