import os
import uuid

from common import ASSETS_DIR, SIMPLE_OBJ_SIZE


def create_file_with_content(file_path: str = None, content: str = None) -> str:
    mode = 'w+'
    if not content:
        content = os.urandom(SIMPLE_OBJ_SIZE)
        mode = 'wb'

    if not file_path:
        file_path = f"{os.getcwd()}/{ASSETS_DIR}/{str(uuid.uuid4())}"
    else:
        if not os.path.exists(os.path.dirname(file_path)):
            os.makedirs(os.path.dirname(file_path))

    with open(file_path, mode) as out_file:
        out_file.write(content)

    return file_path


def get_file_content(file_path: str, content_len: int = None, mode='r') -> str:
    with open(file_path, mode) as out_file:
        if content_len:
            content = out_file.read(content_len)
        else:
            content = out_file.read()

    return content


def split_file(file_path: str, parts: int) -> list[str]:
    files = []
    with open(file_path, 'rb') as in_file:
        data = in_file.read()

    content_size = len(data)

    chunk_size = int((content_size + parts) / parts)
    part_id = 1
    for start_position in range(0, content_size + 1, chunk_size):
        part_file_name = f'{file_path}_part_{part_id}'
        files.append(part_file_name)
        with open(part_file_name, 'wb') as out_file:
            out_file.write(data[start_position:start_position + chunk_size])
        part_id += 1

    return files


def robot_time_to_int(value: str) -> int:
    if value.endswith('s'):
        return int(value[:-1])

    if value.endswith('m'):
        return int(value[:-1]) * 60


def placement_policy_from_container(container_info: str) -> str:
    """
    Get placement policy from container info:

        container ID: j7k4auNHRmiPMSmnH2qENLECD2au2y675fvTX6csDwd
        version: 2.12
        owner ID: NQ8HUxE5qEj7UUvADj7z9Z7pcvJdjtPwuw
        basic ACL: 0x0fbfbfff (eacl-public-read-write)
        attribute: Timestamp=1656340345 (2022-06-27 17:32:25 +0300 MSK)
        nonce: 1c511e88-efd7-4004-8dbf-14391a5d375a
        placement policy:
        REP 1 IN LOC_PLACE
        CBF 1
        SELECT 1 FROM LOC_SW AS LOC_PLACE
        FILTER Country EQ Sweden AS LOC_SW

    Args:
        container_info: output from neofs-cli container get command

    Returns:
        placement policy as a string
    """
    assert ':' in container_info, f'Could not find placement rule in the output {container_info}'
    return container_info.split(':')[-1].replace('\n', ' ').strip()