# coding: utf-8

"""
    Shaped API

    Welcome to Shaped's API reference docs. These provide a detailed view of the endpoints and CLI commands that Shaped provides and brief explanations of how they should be used.   Shaped's API is composed of 3 components:   1. **Dataset** - used to provision and manage 'Shaped Datasets', which are persisted     data views of external data. Shaped Datasets can be created from any of our     'Shaped connectors' (e.g. S3, Segment, Snowflake, etc.) and support both batch     ingestion (up to a 15min delay) and stream ingestion (up to a 30 second     delay) depending on the specific connector used. Shaped datasets can also be     created from local files, which is particularly useful for getting started     with a snapshot of data.    2. **Model Management** - used to provision and manage 'Shaped Models', which     represent a system of data pipelines, training and serving infrastructure for     your ranking use-case.    3. **Model Inference** - a high performance API that's used to make     user-understanding requests or ranking inferences to your 'Shaped Models'. For     example, the 'rank' endpoint can be used to determine for a given user id     query, what is the content that is most engaging to that user.    The recommended workflow to interact with the Shaped API is as follows:   1. First create 'Shaped Datasets' to sync over data that your Shaped     understanding models will need. The models at the minimum need interaction     data to understand behavior of your users, so start with that and add your item     and user catalog data later.   2. Then create 'Shaped Models' that use your created 'Shaped Datasets' as     input. Your Shaped Model will will start streaming, processing and training     from your connected data immediately. After a few hours your model will have     tuned all parameters based on your data and will deploy an active model.   3. You can now use the 'Model Inference' endpoints to make real-time     inferences to your model based on your use-case. 

    The version of the OpenAPI document: 1.0.1
    Generated by OpenAPI Generator (https://openapi-generator.tech)

    Do not edit the class manually.
"""  # noqa: E501


import io
import json
import re
import ssl

import urllib3

from shaped.autogen.exceptions import ApiException, ApiValueError

SUPPORTED_SOCKS_PROXIES = {"socks5", "socks5h", "socks4", "socks4a"}
RESTResponseType = urllib3.HTTPResponse


def is_socks_proxy_url(url):
    if url is None:
        return False
    split_section = url.split("://")
    if len(split_section) < 2:
        return False
    else:
        return split_section[0].lower() in SUPPORTED_SOCKS_PROXIES


class RESTResponse(io.IOBase):

    def __init__(self, resp) -> None:
        self.response = resp
        self.status = resp.status
        self.reason = resp.reason
        self.data = None

    def read(self):
        if self.data is None:
            self.data = self.response.data
        return self.data

    def getheaders(self):
        """Returns a dictionary of the response headers."""
        return self.response.headers

    def getheader(self, name, default=None):
        """Returns a given response header."""
        return self.response.headers.get(name, default)


class RESTClientObject:

    def __init__(self, configuration) -> None:
        # urllib3.PoolManager will pass all kw parameters to connectionpool
        # https://github.com/shazow/urllib3/blob/f9409436f83aeb79fbaf090181cd81b784f1b8ce/urllib3/poolmanager.py#L75  # noqa: E501
        # https://github.com/shazow/urllib3/blob/f9409436f83aeb79fbaf090181cd81b784f1b8ce/urllib3/connectionpool.py#L680  # noqa: E501
        # Custom SSL certificates and client certificates: http://urllib3.readthedocs.io/en/latest/advanced-usage.html  # noqa: E501

        # cert_reqs
        if configuration.verify_ssl:
            cert_reqs = ssl.CERT_REQUIRED
        else:
            cert_reqs = ssl.CERT_NONE

        pool_args = {
            "cert_reqs": cert_reqs,
            "ca_certs": configuration.ssl_ca_cert,
            "cert_file": configuration.cert_file,
            "key_file": configuration.key_file,
        }
        if configuration.assert_hostname is not None:
            pool_args['assert_hostname'] = (
                configuration.assert_hostname
            )

        if configuration.retries is not None:
            pool_args['retries'] = configuration.retries

        if configuration.tls_server_name:
            pool_args['server_hostname'] = configuration.tls_server_name


        if configuration.socket_options is not None:
            pool_args['socket_options'] = configuration.socket_options

        if configuration.connection_pool_maxsize is not None:
            pool_args['maxsize'] = configuration.connection_pool_maxsize

        # https pool manager
        self.pool_manager: urllib3.PoolManager

        if configuration.proxy:
            if is_socks_proxy_url(configuration.proxy):
                from urllib3.contrib.socks import SOCKSProxyManager
                pool_args["proxy_url"] = configuration.proxy
                pool_args["headers"] = configuration.proxy_headers
                self.pool_manager = SOCKSProxyManager(**pool_args)
            else:
                pool_args["proxy_url"] = configuration.proxy
                pool_args["proxy_headers"] = configuration.proxy_headers
                self.pool_manager = urllib3.ProxyManager(**pool_args)
        else:
            self.pool_manager = urllib3.PoolManager(**pool_args)

    def request(
        self,
        method,
        url,
        headers=None,
        body=None,
        post_params=None,
        _request_timeout=None
    ):
        """Perform requests.

        :param method: http request method
        :param url: http request url
        :param headers: http request headers
        :param body: request json body, for `application/json`
        :param post_params: request post parameters,
                            `application/x-www-form-urlencoded`
                            and `multipart/form-data`
        :param _request_timeout: timeout setting for this request. If one
                                 number provided, it will be total request
                                 timeout. It can also be a pair (tuple) of
                                 (connection, read) timeouts.
        """
        method = method.upper()
        assert method in [
            'GET',
            'HEAD',
            'DELETE',
            'POST',
            'PUT',
            'PATCH',
            'OPTIONS'
        ]

        if post_params and body:
            raise ApiValueError(
                "body parameter cannot be used with post_params parameter."
            )

        post_params = post_params or {}
        headers = headers or {}

        timeout = None
        if _request_timeout:
            if isinstance(_request_timeout, (int, float)):
                timeout = urllib3.Timeout(total=_request_timeout)
            elif (
                    isinstance(_request_timeout, tuple)
                    and len(_request_timeout) == 2
                ):
                timeout = urllib3.Timeout(
                    connect=_request_timeout[0],
                    read=_request_timeout[1]
                )

        try:
            # For `POST`, `PUT`, `PATCH`, `OPTIONS`, `DELETE`
            if method in ['POST', 'PUT', 'PATCH', 'OPTIONS', 'DELETE']:

                # no content type provided or payload is json
                content_type = headers.get('Content-Type')
                if (
                    not content_type
                    or re.search('json', content_type, re.IGNORECASE)
                ):
                    request_body = None
                    if body is not None:
                        request_body = json.dumps(body)
                    r = self.pool_manager.request(
                        method,
                        url,
                        body=request_body,
                        timeout=timeout,
                        headers=headers,
                        preload_content=False
                    )
                elif content_type == 'application/x-www-form-urlencoded':
                    r = self.pool_manager.request(
                        method,
                        url,
                        fields=post_params,
                        encode_multipart=False,
                        timeout=timeout,
                        headers=headers,
                        preload_content=False
                    )
                elif content_type == 'multipart/form-data':
                    # must del headers['Content-Type'], or the correct
                    # Content-Type which generated by urllib3 will be
                    # overwritten.
                    del headers['Content-Type']
                    # Ensures that dict objects are serialized
                    post_params = [(a, json.dumps(b)) if isinstance(b, dict) else (a,b) for a, b in post_params]
                    r = self.pool_manager.request(
                        method,
                        url,
                        fields=post_params,
                        encode_multipart=True,
                        timeout=timeout,
                        headers=headers,
                        preload_content=False
                    )
                # Pass a `string` parameter directly in the body to support
                # other content types than JSON when `body` argument is
                # provided in serialized form.
                elif isinstance(body, str) or isinstance(body, bytes):
                    r = self.pool_manager.request(
                        method,
                        url,
                        body=body,
                        timeout=timeout,
                        headers=headers,
                        preload_content=False
                    )
                elif headers['Content-Type'].startswith('text/') and isinstance(body, bool):
                    request_body = "true" if body else "false"
                    r = self.pool_manager.request(
                        method,
                        url,
                        body=request_body,
                        preload_content=False,
                        timeout=timeout,
                        headers=headers)
                else:
                    # Cannot generate the request from given parameters
                    msg = """Cannot prepare a request message for provided
                             arguments. Please check that your arguments match
                             declared content type."""
                    raise ApiException(status=0, reason=msg)
            # For `GET`, `HEAD`
            else:
                r = self.pool_manager.request(
                    method,
                    url,
                    fields={},
                    timeout=timeout,
                    headers=headers,
                    preload_content=False
                )
        except urllib3.exceptions.SSLError as e:
            msg = "\n".join([type(e).__name__, str(e)])
            raise ApiException(status=0, reason=msg)

        return RESTResponse(r)
