from utils.literal import Literal
from utils.memory_cell import MemoryCell
from utils.memory_array import MemoryArray

class BTreeNode(MemoryCell):

    def __init__(self, m: int):
        super().__init__()
        self.m = m
        self.n = 0
        self.leaf = True
        self.value = MemoryArray(Literal(2 * m - 1))
        self.children = [None] * (2 * m)
        self.loaded_count = 0
        self.saved_count = 0

    def reset_counters(self):
        super().reset_counters()
        self.loaded_count = 0
        self.saved_count = 0

    def load(self):
        self.loaded_count += 1

    def save(self):
        self.saved_count += 1

    def __str__(self):
        return "(" + " ".join([str(self.value[Literal(i)]) for i in range(self.n)]) + ")"