//JobShop.h

extern int Nr_Machine_Groups;
extern int Nr_Standard_Job_Types;
extern double SimTime;
extern double LengthOfRun;
extern FILE * fp;
extern FILE * fpOut;

void ReadInputData();
double exponential();

class RankedSet;
class Step;
class EndProcess;
class Machine;
class Sale;
class accumulated_variable;
class tallied_variable;

typedef enum JobDoneCode{
	JobDone,
	JobNotDone
};

class Machine_group 
{
public:
	int MG_Nr;
	accumulated_variable Free_machines;
	RankedSet Queue;
	accumulated_variable Queue_size;
	EndProcess * First_free_EndProcess_notice;

	Machine_group();
	
};

extern Machine_group * MachineGroup;

class Std_job_type
{
public:
	double Mean_time_between_sales;
	Step * First_step_in_routing;  //first in linked list
	Step * Last_step_in_routing;   //last step in routing
	tallied_variable Time_in_shop;
	void NewSale(Sale * SalePtr);
};

extern Std_job_type * StdJobType;

class Step
{
public:
	Machine_group * MG;
	Std_job_type * Job_type;
	Step * Next_step;
	double Proc_time;
	double Step_priority;
};

class Job
{
public:
	Std_job_type * Job_type;
	double Arrival_time;
	Step * Place;
	Job(Std_job_type * SJTPtr);
	JobDoneCode AdvanceJob();
};