"""Helpers for running script commands."""
# Copyright 2022 the Regents of the University of California, Nerfstudio Team and contributors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import subprocess
import sys
from typing import Optional

from nerfstudio.utils.rich_utils import CONSOLE


def run_command(cmd: str, verbose=False) -> Optional[str]:
    """Runs a command and returns the output.

    Args:
        cmd: Command to run.
        verbose: If True, logs the output of the command.
    Returns:
        The output of the command if return_output is True, otherwise None.
    """
    out = subprocess.run(cmd, capture_output=not verbose, shell=True, check=False)
    if out.returncode != 0:
        CONSOLE.rule("[bold red] :skull: :skull: :skull: ERROR :skull: :skull: :skull: ", style="red")
        CONSOLE.print(f"[bold red]Error running command: {cmd}")
        CONSOLE.rule(style="red")
        CONSOLE.print(out.stderr.decode("utf-8"))
        sys.exit(1)
    if out.stdout is not None:
        return out.stdout.decode("utf-8")
    return out
