with Paes_Utilities;                  use Paes_Utilities;
with Chromosome_Data_Manipulation; use Chromosome_Data_Manipulation;
with Systems;               use Systems;
with Ada.Numerics.Float_Random ; use Ada.Numerics.Float_Random ;
with Ada.Strings.Unbounded;             use Ada.Strings.Unbounded;
with unbounded_strings;                 use unbounded_strings;

-- This package defines a set of objective functions
-- and implements the feasibility checks on candidate
-- solutions of the F2T architecture exploration problem
--
package Objective_Functions_and_Feasibility_Checks is


   -- FitnessFunctions is an array of possible objective functions
   -- that could be combined in order to drive
   -- the design space exploration
   --
   type fitnessFunction is
      record
         Name : Unbounded_String;
         Is_selected : integer; -- 0 ==> is NOT selected | 1 ==> is selected
      end record;

   MAX_FITNESS : constant integer := 11;
   FitnessFunctions : array (1 .. MAX_FITNESS) of fitnessFunction;

   Procedure initialize_FitnessFunctions;

   -- This function checks if a solution is consistent or not :
   -- 1) Check for each task of the candidate solution that Ci <= Di
   -- 2) Check that the total processor Utilization <= 1
   -- 3) check if there are two non-harmonic functions which are
   -- grouped alone in the same task.
   --
   function Check_Feasibility_of_A_Solution (s : in solution; eidx : in Natural) return boolean;


   -- This procedure update a solution "s" with its objective values
   -- by retrieving some informations from its scheduling simulation
   -- results that was done to check its schedulability (throughout
   -- the feasibility checks procedure)
   --
   procedure evaluate_F2T (s : in out solution; eidx : in Natural);

end Objective_Functions_and_Feasibility_Checks;