Coverage for moptipyapps / prodsched / objectives / worst_and_mean_fill_rate.py: 41%

1"""Maximize the worst and average immediate rates.""" 

2 

3 

4from moptipy.api.objective import Objective 

5 

6from moptipyapps.prodsched.multistatistics import MultiStatistics 

7 

8 

9class WorstAndMeanFillRate(Objective): 

10 """Compute the worst immediate rate and return `1 -` of it.""" 

11 

12 def evaluate(self, x: MultiStatistics) -> int | float: 

13 """ 

14 Get the negated worst immediate rate. 

15 

16 :param x: the multi-statistics 

17 :return: the worst stock level 

18 """ 

19 min_imm: int | float = 1 

20 avg_imm: int | float = 1 

21 for stat in x.per_instance: 

22 for sl in stat.immediate_rates: 

23 min_imm = 0 if sl is None else min(min_imm, sl) 

24 avg_imm = 0 if stat.immediate_rate is None else min( 

25 avg_imm, stat.immediate_rate) 

26 return (1 - min_imm) * 100 + (1 - avg_imm) 

27 

28 def lower_bound(self) -> int: 

29 """ 

30 Get the lower bound of the inverted minimum immediate rate. 

31 

32 :retval 0: always 

33 """ 

34 return 0 

35 

36 def upper_bound(self) -> int: 

37 """ 

38 Get the upper bound of the inverted minimum immediate rate. 

39 

40 :retval 1: always 

41 """ 

42 return 101 

43 

44 def __str__(self) -> str: 

45 """ 

46 Get the name of the objective function. 

47 

48 :return: `worstMinAndMeanFillRate` 

49 :retval "worstMinAndMeanFillRate": always 

50 """ 

51 return "worstAndMeanFillRate"