import logging
import os
import re
import shutil
import uuid
import zipfile
from urllib.parse import quote_plus

import allure
import requests
from cli_helpers import _cmd_run

logger = logging.getLogger("NeoLogger")

ASSETS_DIR = os.getenv("ASSETS_DIR", "TemporaryDir/")


@allure.step("Get via HTTP Gate")
def get_via_http_gate(cid: str, oid: str, endpoint: str):
    """
    This function gets given object from HTTP gate
    cid:      container id to get object from
    oid:      object ID
    endpoint: http gate endpoint
    """
    request = f"{endpoint}/get/{cid}/{oid}"
    resp = requests.get(request, stream=True)

    if not resp.ok:
        raise Exception(
            f"""Failed to get object via HTTP gate:
                request: {resp.request.path_url},
                response: {resp.text},
                status code: {resp.status_code} {resp.reason}"""
        )

    logger.info(f"Request: {request}")
    _attach_allure_step(request, resp.status_code)

    file_path = os.path.join(os.getcwd(), ASSETS_DIR, f"{cid}_{oid}")
    with open(file_path, "wb") as file:
        shutil.copyfileobj(resp.raw, file)
    return file_path


@allure.step("Get via Zip HTTP Gate")
def get_via_zip_http_gate(cid: str, prefix: str, endpoint: str):
    """
    This function gets given object from HTTP gate
    cid:      container id to get object from
    prefix:   common prefix
    endpoint: http gate endpoint
    """
    request = f"{endpoint}/zip/{cid}/{prefix}"
    resp = requests.get(request, stream=True)

    if not resp.ok:
        raise Exception(
            f"""Failed to get object via HTTP gate:
                request: {resp.request.path_url},
                response: {resp.text},
                status code: {resp.status_code} {resp.reason}"""
        )

    logger.info(f"Request: {request}")
    _attach_allure_step(request, resp.status_code)

    file_path = os.path.join(os.getcwd(), ASSETS_DIR, f"{cid}_archive.zip")
    with open(file_path, "wb") as file:
        shutil.copyfileobj(resp.raw, file)

    with zipfile.ZipFile(file_path, "r") as zip_ref:
        zip_ref.extractall(ASSETS_DIR)

    return os.path.join(os.getcwd(), ASSETS_DIR, prefix)


@allure.step("Get via HTTP Gate by attribute")
def get_via_http_gate_by_attribute(cid: str, attribute: dict, endpoint: str):
    """
    This function gets given object from HTTP gate
    cid:         CID to get object from
    attribute:   attribute {name: attribute} value pair
    endpoint: http gate endpoint
    """
    attr_name = list(attribute.keys())[0]
    attr_value = quote_plus(str(attribute.get(attr_name)))
    request = f"{endpoint}/get_by_attribute/{cid}/{quote_plus(str(attr_name))}/{attr_value}"
    resp = requests.get(request, stream=True)

    if not resp.ok:
        raise Exception(
            f"""Failed to get object via HTTP gate:
                request: {resp.request.path_url},
                response: {resp.text},
                status code: {resp.status_code} {resp.reason}"""
        )

    logger.info(f"Request: {request}")
    _attach_allure_step(request, resp.status_code)

    file_path = os.path.join(os.getcwd(), ASSETS_DIR, f"{cid}_{str(uuid.uuid4())}")
    with open(file_path, "wb") as file:
        shutil.copyfileobj(resp.raw, file)
    return file_path


@allure.step("Upload via HTTP Gate")
def upload_via_http_gate(cid: str, path: str, endpoint: str, headers: dict = None) -> str:
    """
    This function upload given object through HTTP gate
    cid:      CID to get object from
    path:     File path to upload
    endpoint: http gate endpoint
    headers:  Object header
    """
    request = f"{endpoint}/upload/{cid}"
    files = {"upload_file": open(path, "rb")}
    body = {"filename": path}
    resp = requests.post(request, files=files, data=body, headers=headers)

    if not resp.ok:
        raise Exception(
            f"""Failed to get object via HTTP gate:
                request: {resp.request.path_url},
                response: {resp.text},
                status code: {resp.status_code} {resp.reason}"""
        )

    logger.info(f"Request: {request}")
    _attach_allure_step(request, resp.json(), req_type="POST")

    assert resp.json().get("object_id"), f"OID found in response {resp}"

    return resp.json().get("object_id")


@allure.step("Upload via HTTP Gate using Curl")
def upload_via_http_gate_curl(
    cid: str, filepath: str, endpoint: str, large_object=False, headers: dict = None
) -> str:
    """
    This function upload given object through HTTP gate using curl utility.
    cid: CID to get object from
    filepath: File path to upload
    headers: Object header
    endpoint: http gate endpoint
    """
    request = f"{endpoint}/upload/{cid}"
    files = f"file=@{filepath};filename={os.path.basename(filepath)}"
    cmd = f"curl -F '{files}' {request}"
    if large_object:
        files = f"file=@pipe;filename={os.path.basename(filepath)}"
        cmd = f"mkfifo pipe;cat {filepath} > pipe & curl --no-buffer -F '{files}' {request}"
    output = _cmd_run(cmd)
    oid_re = re.search(r'"object_id": "(.*)"', output)
    if not oid_re:
        raise AssertionError(f'Could not find "object_id" in {output}')
    return oid_re.group(1)


@allure.step("Get via HTTP Gate using Curl")
def get_via_http_curl(cid: str, oid: str, endpoint: str) -> str:
    """
    This function gets given object from HTTP gate using curl utility.
    cid:      CID to get object from
    oid:      object OID
    endpoint: http gate endpoint
    """
    request = f"{endpoint}/get/{cid}/{oid}"
    file_path = os.path.join(os.getcwd(), ASSETS_DIR, f"{cid}_{oid}_{str(uuid.uuid4())}")

    cmd = f"curl {request} > {file_path}"
    _cmd_run(cmd)

    return file_path


def _attach_allure_step(request: str, status_code: int, req_type="GET"):
    command_attachment = f"REQUEST: '{request}'\n" f"RESPONSE:\n {status_code}\n"
    with allure.step(f"{req_type} Request"):
        allure.attach(command_attachment, f"{req_type} Request", allure.attachment_type.TEXT)