"""Common utilities for jit_kernel benchmark files."""

import os
from typing import Callable, List, Tuple

import torch
import triton.testing

# Common constants
DEFAULT_DTYPE = torch.bfloat16
DEFAULT_DEVICE = "cuda"
DEFAULT_QUANTILES = [0.5, 0.2, 0.8]


def is_in_ci() -> bool:
    """Check if running in CI environment."""
    return (
        os.getenv("CI", "false").lower() == "true"
        or os.getenv("GITHUB_ACTIONS", "false").lower() == "true"
    )


def get_benchmark_range(full_range: List, ci_range: List) -> List:
    """Return appropriate benchmark range based on CI environment."""
    return ci_range if is_in_ci() else full_range


def run_benchmark(
    fn: Callable, quantiles: List[float] = None
) -> Tuple[float, float, float]:
    """Execute benchmark using CUDA graph and return times in microseconds.

    Args:
        fn: Function to benchmark
        quantiles: Quantiles for timing measurements [median, min, max]

    Returns:
        Tuple of (median_us, max_us, min_us)
    """
    quantiles = quantiles or DEFAULT_QUANTILES
    ms, min_ms, max_ms = triton.testing.do_bench_cudagraph(fn, quantiles=quantiles)
    return 1000 * ms, 1000 * max_ms, 1000 * min_ms