import socket
import os

from typing import List, Tuple, Dict

import click
import requests

from ..utils import space_colon_kv, generic_handle_stream_response
from .CLIStreamResponseHandler import CLIStreamResponseHandler


class Abort(click.ClickException):
    """Abort silently."""

    def __init__(self, exit_code=1):
        super().__init__('')
        self.exit_code = exit_code

    def show(self):
        pass


def print_lines(lines: List[str]):
    """Print multiple lines to stdout."""
    for line in lines:
        click.echo(line)


def print_colon_kv(pairs: List[Tuple[str, str]]):
    """
    Pretty-print a list of key-value pairs.
    """
    for line in space_colon_kv(pairs):
        click.echo(line)


def handle_stream_response(resp: requests.Response, operations: List[str]) -> List[Dict]:
    handler = CLIStreamResponseHandler(operations)
    return generic_handle_stream_response(resp, operations, handler)


def handle_sync_response(resp: requests.Response):
    """
    Exit the program if the request was not successful.
    Returns the parsed JSON response.
    """
    if resp.status_code != 200:
        click.echo('An error occurred:')
        click.echo(resp.text.rstrip())
        raise Abort()
    return resp.json()


def check_file_path(file):
    if os.path.isfile(file):
        click.echo(f"{file} will be overwritten")
        click.confirm('Do you want to continue?', abort=True)
    elif os.path.isdir(file):
        click.echo(f"Error: there exists a directory at {file}")
        raise Abort()


def check_if_in_development() -> bool:
    """Aborts if we are not currently in the dev environment."""
    if not socket.getfqdn().endswith('.csclub.internal'):
        click.echo('This command may only be called during development.')
        raise Abort()