from __future__ import annotations

from statistics import mean






def 					snake_case    (			snake_case__     :Optional[Any]  ,      snake_case__     :str  ,      snake_case__     :Union[str, Any])		->  List[str]:
       _A	  =    [0] * no_of_processes
       _A	  =    [0] * no_of_processes

       # Initialize remaining_time to waiting_time.

       for i in range(snake_case__):
              _A	  =    burst_time[i]
       _A	  =    []

       _A	  =    0
       _A	  =    0

       # When processes are not completed,
       # A process whose arrival time has passed \
       # and has remaining execution time is put into the ready_process.
       # The shortest process in the ready_process, target_process is executed.

       while completed != no_of_processes:
              _A	  =    []
              _A	  =    -1

              for i in range(snake_case__):
                     if (arrival_time[i] <= total_time) and (remaining_time[i] > 0):
                            ready_process.append(snake_case__)

              if len(snake_case__) > 0:
                     _A	  =    ready_process[0]
                     for i in ready_process:
                            if remaining_time[i] < remaining_time[target_process]:
                                   _A	  =    i
                     total_time += burst_time[target_process]
                     completed += 1
                     _A	  =    0
                     _A	  =    (
                         total_time - arrival_time[target_process] - burst_time[target_process]
                     )
              else:
                     total_time += 1

       return waiting_time






def 					snake_case    (			snake_case__     :int  ,      snake_case__     :List[Any]  ,      snake_case__     :Optional[int])		->  Optional[Any]:
       _A	  =    [0] * no_of_processes
       for i in range(snake_case__):
              _A	  =    burst_time[i] + waiting_time[i]
       return turn_around_time


if __name__ == "__main__":
    print('[TEST CASE 01]')

    _SCREAMING_SNAKE_CASE     				=		4
    _SCREAMING_SNAKE_CASE     				=		[2, 5, 3, 7]
    _SCREAMING_SNAKE_CASE     				=		[0, 0, 0, 0]
    _SCREAMING_SNAKE_CASE     				=		calculate_waitingtime(arrival_time, burst_time, no_of_processes)
    _SCREAMING_SNAKE_CASE     				=		calculate_turnaroundtime(
        burst_time, no_of_processes, waiting_time
    )

    # Printing the Result
    print('PID\tBurst Time\tArrival Time\tWaiting Time\tTurnaround Time')
    for i, process_id in enumerate(list(range(1, 5))):
        print(
            F'''{process_id}\t{burst_time[i]}\t\t\t{arrival_time[i]}\t\t\t\t'''
            F'''{waiting_time[i]}\t\t\t\t{turn_around_time[i]}'''
        )
    print(F'''\nAverage waiting time = {mean(waiting_time):.5f}''')
    print(F'''Average turnaround time = {mean(turn_around_time):.5f}''')







"""simple docstring"""




from typing import List

from .keymap import KEYMAP, get_character

def 						A							(  snake_case__     ):




			'''simple docstring'''


			def decorator(snake_case__     ):
						SCREAMING_SNAKE_CASE__										=   getattr(snake_case__		,					"""handle_key"""		,					[]     )
						handle += [key]
						setattr(snake_case__		,					"""handle_key"""		,					snake_case__     )
						return func

			return decorator

def 						A							(  *snake_case__     ):




			'''simple docstring'''


			def decorator(snake_case__     ):
						SCREAMING_SNAKE_CASE__										=   getattr(snake_case__		,					"""handle_key"""		,					[]     )
						handle += keys
						setattr(snake_case__		,					"""handle_key"""		,					snake_case__     )
						return func

			return decorator





class  lowerCamelCase    (A__      ):

			def __new__(       cls					:    Dict     ,					__UpperCAmelCase					:    Tuple     ,					__UpperCAmelCase					:    Any     ,					__UpperCAmelCase					:    Optional[Any]							) ->     List[str]:
						SCREAMING_SNAKE_CASE__										=   super().__new__(cls     ,					__UpperCAmelCase     ,					__UpperCAmelCase     ,					__UpperCAmelCase							)
						if not hasattr(__UpperCAmelCase     ,					"""key_handler"""							):
									setattr(__UpperCAmelCase     ,					"""key_handler"""     ,					{}							)
						setattr(__UpperCAmelCase     ,					"""handle_input"""     ,					KeyHandler.handle_input							)

						for value in attrs.values():
									SCREAMING_SNAKE_CASE__										=   getattr(__UpperCAmelCase     ,					"""handle_key"""     ,					[]							)
									for key in handled_keys:
												SCREAMING_SNAKE_CASE__										=   value
						return new_cls





			@staticmethod
			def        SCREAMING_SNAKE_CASE					(       cls					:    Tuple							) ->     Dict:
						SCREAMING_SNAKE_CASE__										=   get_character()
						if char != KEYMAP["undefined"]:
									SCREAMING_SNAKE_CASE__										=   ord(__UpperCAmelCase							)
						SCREAMING_SNAKE_CASE__										=   cls.key_handler.get(__UpperCAmelCase							)
						if handler:
									SCREAMING_SNAKE_CASE__										=   char
									return handler(cls							)
						else:
									return None

def 						A							(  cls     ):




			'''simple docstring'''


			return KeyHandler(cls.__name__		,					cls.__bases__		,					cls.__dict__.copy()     )


