from __future__ import annotations

from typing import List, Tuple, TYPE_CHECKING, Union

# Prevent circular import
if TYPE_CHECKING:
    from torch._inductor.scheduler import (
        BaseSchedulerNode,
        ExternKernelSchedulerNode,
        NopKernelSchedulerNode,
        SchedulerNode,
    )

# counter for tracking how many kernels have been generated
generated_kernel_count = 0
generated_cpp_vec_kernel_count = 0
num_bytes_accessed = 0
nodes_num_elem: List[
    Tuple[
        Union[NopKernelSchedulerNode, SchedulerNode, ExternKernelSchedulerNode],
        int,
    ]
] = []
node_runtimes: List[Tuple[BaseSchedulerNode, float]] = []

# counters for tracking fusions
ir_nodes_pre_fusion = 0

# counters for tracking to_dtype inserted
cpp_to_dtype_count = 0

# counters for tracking cpp_wrapper disabled
disable_cpp_wrapper = 0


# reset all counters
def reset():
    global generated_kernel_count
    global generated_cpp_vec_kernel_count
    global num_bytes_accessed, nodes_num_elem
    global ir_nodes_pre_fusion
    global cpp_to_dtype_count
    global disable_cpp_wrapper

    generated_kernel_count = 0
    generated_cpp_vec_kernel_count = 0
    num_bytes_accessed = 0
    nodes_num_elem.clear()
    node_runtimes.clear()
    ir_nodes_pre_fusion = 0
    cpp_to_dtype_count = 0
    disable_cpp_wrapper = 0