# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.

# coding: utf-8
"""
    Submarine Experiment API

    The Submarine REST API allows you to create, list, and get experiments. The API is hosted under the /v1/experiment route on the Submarine server. For example, to list experiments on a server hosted at http://localhost:8080, access http://localhost:8080/api/v1/experiment/  # noqa: E501

    The version of the OpenAPI document: 0.4.0
    Contact: dev@submarine.apache.org
    Generated by: https://openapi-generator.tech
"""

from __future__ import absolute_import

import atexit
import datetime
import json
import mimetypes
import os
import re
import tempfile
from multiprocessing.pool import ThreadPool

# python 2 and python 3 compatibility library
import six
from dateutil.parser import parse
from six.moves.urllib.parse import quote

import submarine.experiment.models
from submarine.experiment import rest
from submarine.experiment.configuration import Configuration
from submarine.experiment.exceptions import ApiException, ApiValueError


class ApiClient(object):
    """Generic API client for OpenAPI client library builds.

    OpenAPI generic API client. This client handles the client-
    server communication, and is invariant across implementations. Specifics of
    the methods and models for each application are generated from the OpenAPI
    templates.

    NOTE: This class is auto generated by OpenAPI Generator.
    Ref: https://openapi-generator.tech
    Do not edit the class manually.

    :param configuration: .Configuration object for this client
    :param header_name: a header to pass when making calls to the API.
    :param header_value: a header value to pass when making calls to
        the API.
    :param cookie: a cookie to include in the header when making calls
        to the API
    :param pool_threads: The number of threads to use for async requests
        to the API. More threads means more concurrent API requests.
    """

    PRIMITIVE_TYPES = (float, bool, bytes, six.text_type) + six.integer_types
    NATIVE_TYPES_MAPPING = {
        'int': int,
        'long': int if six.PY3 else long,  # noqa: F821
        'float': float,
        'str': str,
        'bool': bool,
        'date': datetime.date,
        'datetime': datetime.datetime,
        'object': object,
    }
    _pool = None

    def __init__(self,
                 configuration=None,
                 header_name=None,
                 header_value=None,
                 cookie=None,
                 pool_threads=1):
        if configuration is None:
            configuration = Configuration.get_default_copy()
        self.configuration = configuration
        self.pool_threads = pool_threads

        self.rest_client = rest.RESTClientObject(configuration)
        self.default_headers = {}
        if header_name is not None:
            self.default_headers[header_name] = header_value
        self.cookie = cookie
        # Set default User-Agent.
        self.user_agent = 'OpenAPI-Generator/0.4.0/python'
        self.client_side_validation = configuration.client_side_validation

    def __enter__(self):
        return self

    def __exit__(self, exc_type, exc_value, traceback):
        self.close()

    def close(self):
        if self._pool:
            self._pool.close()
            self._pool.join()
            self._pool = None
            if hasattr(atexit, 'unregister'):
                atexit.unregister(self.close)

    @property
    def pool(self):
        """Create thread pool on first request
         avoids instantiating unused threadpool for blocking clients.
        """
        if self._pool is None:
            atexit.register(self.close)
            self._pool = ThreadPool(self.pool_threads)
        return self._pool

    @property
    def user_agent(self):
        """User agent for this API client"""
        return self.default_headers['User-Agent']

    @user_agent.setter
    def user_agent(self, value):
        self.default_headers['User-Agent'] = value

    def set_default_header(self, header_name, header_value):
        self.default_headers[header_name] = header_value

    def __call_api(self,
                   resource_path,
                   method,
                   path_params=None,
                   query_params=None,
                   header_params=None,
                   body=None,
                   post_params=None,
                   files=None,
                   response_type=None,
                   auth_settings=None,
                   _return_http_data_only=None,
                   collection_formats=None,
                   _preload_content=True,
                   _request_timeout=None,
                   _host=None):

        config = self.configuration

        # header parameters
        header_params = header_params or {}
        header_params.update(self.default_headers)
        if self.cookie:
            header_params['Cookie'] = self.cookie
        if header_params:
            header_params = self.sanitize_for_serialization(header_params)
            header_params = dict(
                self.parameters_to_tuples(header_params, collection_formats))

        # path parameters
        if path_params:
            path_params = self.sanitize_for_serialization(path_params)
            path_params = self.parameters_to_tuples(path_params,
                                                    collection_formats)
            for k, v in path_params:
                # specified safe chars, encode everything
                resource_path = resource_path.replace(
                    '{%s}' % k,
                    quote(str(v), safe=config.safe_chars_for_path_param))

        # query parameters
        if query_params:
            query_params = self.sanitize_for_serialization(query_params)
            query_params = self.parameters_to_tuples(query_params,
                                                     collection_formats)

        # post parameters
        if post_params or files:
            post_params = post_params if post_params else []
            post_params = self.sanitize_for_serialization(post_params)
            post_params = self.parameters_to_tuples(post_params,
                                                    collection_formats)
            post_params.extend(self.files_parameters(files))

        # auth setting
        self.update_params_for_auth(header_params, query_params, auth_settings)

        # body
        if body:
            body = self.sanitize_for_serialization(body)

        # request url
        if _host is None:
            url = self.configuration.host + resource_path
        else:
            # use server/host defined in path or operation instead
            url = _host + resource_path

        try:
            # perform request and return response
            response_data = self.request(method,
                                         url,
                                         query_params=query_params,
                                         headers=header_params,
                                         post_params=post_params,
                                         body=body,
                                         _preload_content=_preload_content,
                                         _request_timeout=_request_timeout)
        except ApiException as e:
            e.body = e.body.decode('utf-8') if six.PY3 else e.body
            raise e

        content_type = response_data.getheader('content-type')

        self.last_response = response_data

        return_data = response_data

        if not _preload_content:
            return return_data

        if six.PY3 and response_type not in ["file", "bytes"]:
            match = None
            if content_type is not None:
                match = re.search(r"charset=([a-zA-Z\-\d]+)[\s\;]?",
                                  content_type)
            encoding = match.group(1) if match else "utf-8"
            response_data.data = response_data.data.decode(encoding)

        # deserialize response data
        if response_type:
            return_data = self.deserialize(response_data, response_type)
        else:
            return_data = None

        if _return_http_data_only:
            return (return_data)
        else:
            return (return_data, response_data.status,
                    response_data.getheaders())

    def sanitize_for_serialization(self, obj):
        """Builds a JSON POST object.

        If obj is None, return None.
        If obj is str, int, long, float, bool, return directly.
        If obj is datetime.datetime, datetime.date
            convert to string in iso8601 format.
        If obj is list, sanitize each element in the list.
        If obj is dict, return the dict.
        If obj is OpenAPI model, return the properties dict.

        :param obj: The data to serialize.
        :return: The serialized form of data.
        """
        if obj is None:
            return None
        elif isinstance(obj, self.PRIMITIVE_TYPES):
            return obj
        elif isinstance(obj, list):
            return [self.sanitize_for_serialization(sub_obj) for sub_obj in obj]
        elif isinstance(obj, tuple):
            return tuple(
                self.sanitize_for_serialization(sub_obj) for sub_obj in obj)
        elif isinstance(obj, (datetime.datetime, datetime.date)):
            return obj.isoformat()

        if isinstance(obj, dict):
            obj_dict = obj
        else:
            # Convert model obj to dict except
            # attributes `openapi_types`, `attribute_map`
            # and attributes which value is not None.
            # Convert attribute name to json key in
            # model definition for request.
            obj_dict = {
                obj.attribute_map[attr]: getattr(obj, attr)
                for attr, _ in six.iteritems(obj.openapi_types)
                if getattr(obj, attr) is not None
            }

        return {
            key: self.sanitize_for_serialization(val)
            for key, val in six.iteritems(obj_dict)
        }

    def deserialize(self, response, response_type):
        """Deserializes response into an object.

        :param response: RESTResponse object to be deserialized.
        :param response_type: class literal for
            deserialized object, or string of class name.

        :return: deserialized object.
        """
        # handle file downloading
        # save response body into a tmp file and return the instance
        if response_type == "file":
            return self.__deserialize_file(response)

        # fetch data from response object
        try:
            data = json.loads(response.data)
        except ValueError:
            data = response.data

        return self.__deserialize(data, response_type)

    def __deserialize(self, data, klass):
        """Deserializes dict, list, str into an object.

        :param data: dict, list or str.
        :param klass: class literal, or string of class name.

        :return: object.
        """
        if data is None:
            return None

        if type(klass) == str:
            if klass.startswith('list['):
                sub_kls = re.match(r'list\[(.*)\]', klass).group(1)
                return [
                    self.__deserialize(sub_data, sub_kls) for sub_data in data
                ]

            if klass.startswith('dict('):
                sub_kls = re.match(r'dict\(([^,]*), (.*)\)', klass).group(2)
                return {
                    k: self.__deserialize(v, sub_kls)
                    for k, v in six.iteritems(data)
                }

            # convert str to class
            if klass in self.NATIVE_TYPES_MAPPING:
                klass = self.NATIVE_TYPES_MAPPING[klass]
            else:
                klass = getattr(submarine.experiment.models, klass)

        if klass in self.PRIMITIVE_TYPES:
            return self.__deserialize_primitive(data, klass)
        elif klass == object:
            return self.__deserialize_object(data)
        elif klass == datetime.date:
            return self.__deserialize_date(data)
        elif klass == datetime.datetime:
            return self.__deserialize_datetime(data)
        else:
            return self.__deserialize_model(data, klass)

    def call_api(self,
                 resource_path,
                 method,
                 path_params=None,
                 query_params=None,
                 header_params=None,
                 body=None,
                 post_params=None,
                 files=None,
                 response_type=None,
                 auth_settings=None,
                 async_req=None,
                 _return_http_data_only=None,
                 collection_formats=None,
                 _preload_content=True,
                 _request_timeout=None,
                 _host=None):
        """Makes the HTTP request (synchronous) and returns deserialized data.

        To make an async_req request, set the async_req parameter.

        :param resource_path: Path to method endpoint.
        :param method: Method to call.
        :param path_params: Path parameters in the url.
        :param query_params: Query parameters in the url.
        :param header_params: Header parameters to be
            placed in the request header.
        :param body: Request body.
        :param post_params dict: Request post form parameters,
            for `application/x-www-form-urlencoded`, `multipart/form-data`.
        :param auth_settings list: Auth Settings names for the request.
        :param response: Response data type.
        :param files dict: key -> filename, value -> filepath,
            for `multipart/form-data`.
        :param async_req bool: execute request asynchronously
        :param _return_http_data_only: response data without head status code
                                       and headers
        :param collection_formats: dict of collection formats for path, query,
            header, and post parameters.
        :param _preload_content: if False, the urllib3.HTTPResponse object will
                                 be returned without reading/decoding response
                                 data. Default is True.
        :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.
        :return:
            If async_req parameter is True,
            the request will be called asynchronously.
            The method will return the request thread.
            If parameter async_req is False or missing,
            then the method will return the response directly.
        """
        if not async_req:
            return self.__call_api(resource_path, method, path_params,
                                   query_params, header_params, body,
                                   post_params, files, response_type,
                                   auth_settings, _return_http_data_only,
                                   collection_formats, _preload_content,
                                   _request_timeout, _host)

        return self.pool.apply_async(
            self.__call_api,
            (resource_path, method, path_params, query_params, header_params,
             body, post_params, files, response_type, auth_settings,
             _return_http_data_only, collection_formats, _preload_content,
             _request_timeout, _host))

    def request(self,
                method,
                url,
                query_params=None,
                headers=None,
                post_params=None,
                body=None,
                _preload_content=True,
                _request_timeout=None):
        """Makes the HTTP request using RESTClient."""
        if method == "GET":
            return self.rest_client.GET(url,
                                        query_params=query_params,
                                        _preload_content=_preload_content,
                                        _request_timeout=_request_timeout,
                                        headers=headers)
        elif method == "HEAD":
            return self.rest_client.HEAD(url,
                                         query_params=query_params,
                                         _preload_content=_preload_content,
                                         _request_timeout=_request_timeout,
                                         headers=headers)
        elif method == "OPTIONS":
            return self.rest_client.OPTIONS(url,
                                            query_params=query_params,
                                            headers=headers,
                                            _preload_content=_preload_content,
                                            _request_timeout=_request_timeout)
        elif method == "POST":
            return self.rest_client.POST(url,
                                         query_params=query_params,
                                         headers=headers,
                                         post_params=post_params,
                                         _preload_content=_preload_content,
                                         _request_timeout=_request_timeout,
                                         body=body)
        elif method == "PUT":
            return self.rest_client.PUT(url,
                                        query_params=query_params,
                                        headers=headers,
                                        post_params=post_params,
                                        _preload_content=_preload_content,
                                        _request_timeout=_request_timeout,
                                        body=body)
        elif method == "PATCH":
            return self.rest_client.PATCH(url,
                                          query_params=query_params,
                                          headers=headers,
                                          post_params=post_params,
                                          _preload_content=_preload_content,
                                          _request_timeout=_request_timeout,
                                          body=body)
        elif method == "DELETE":
            return self.rest_client.DELETE(url,
                                           query_params=query_params,
                                           headers=headers,
                                           _preload_content=_preload_content,
                                           _request_timeout=_request_timeout,
                                           body=body)
        else:
            raise ApiValueError("http method must be `GET`, `HEAD`, `OPTIONS`,"
                                " `POST`, `PATCH`, `PUT` or `DELETE`.")

    def parameters_to_tuples(self, params, collection_formats):
        """Get parameters as list of tuples, formatting collections.

        :param params: Parameters as dict or list of two-tuples
        :param dict collection_formats: Parameter collection formats
        :return: Parameters as list of tuples, collections formatted
        """
        new_params = []
        if collection_formats is None:
            collection_formats = {}
        for k, v in six.iteritems(params) if isinstance(
                params, dict) else params:  # noqa: E501
            if k in collection_formats:
                collection_format = collection_formats[k]
                if collection_format == 'multi':
                    new_params.extend((k, value) for value in v)
                else:
                    if collection_format == 'ssv':
                        delimiter = ' '
                    elif collection_format == 'tsv':
                        delimiter = '\t'
                    elif collection_format == 'pipes':
                        delimiter = '|'
                    else:  # csv is the default
                        delimiter = ','
                    new_params.append(
                        (k, delimiter.join(str(value) for value in v)))
            else:
                new_params.append((k, v))
        return new_params

    def files_parameters(self, files=None):
        """Builds form parameters.

        :param files: File parameters.
        :return: Form parameters with files.
        """
        params = []

        if files:
            for k, v in six.iteritems(files):
                if not v:
                    continue
                file_names = v if type(v) is list else [v]
                for n in file_names:
                    with open(n, 'rb') as f:
                        filename = os.path.basename(f.name)
                        filedata = f.read()
                        mimetype = (mimetypes.guess_type(filename)[0] or
                                    'application/octet-stream')
                        params.append(
                            tuple([k, tuple([filename, filedata, mimetype])]))

        return params

    def select_header_accept(self, accepts):
        """Returns `Accept` based on an array of accepts provided.

        :param accepts: List of headers.
        :return: Accept (e.g. application/json).
        """
        if not accepts:
            return

        accepts = [x.lower() for x in accepts]

        if 'application/json' in accepts:
            return 'application/json'
        else:
            return ', '.join(accepts)

    def select_header_content_type(self, content_types):
        """Returns `Content-Type` based on an array of content_types provided.

        :param content_types: List of content-types.
        :return: Content-Type (e.g. application/json).
        """
        if not content_types:
            return 'application/json'

        content_types = [x.lower() for x in content_types]

        if 'application/json' in content_types or '*/*' in content_types:
            return 'application/json'
        else:
            return content_types[0]

    def update_params_for_auth(self, headers, querys, auth_settings):
        """Updates header and query params based on authentication setting.

        :param headers: Header parameters dict to be updated.
        :param querys: Query parameters tuple list to be updated.
        :param auth_settings: Authentication setting identifiers list.
        """
        if not auth_settings:
            return

        for auth in auth_settings:
            auth_setting = self.configuration.auth_settings().get(auth)
            if auth_setting:
                if auth_setting['in'] == 'cookie':
                    headers['Cookie'] = auth_setting['value']
                elif auth_setting['in'] == 'header':
                    headers[auth_setting['key']] = auth_setting['value']
                elif auth_setting['in'] == 'query':
                    querys.append((auth_setting['key'], auth_setting['value']))
                else:
                    raise ApiValueError(
                        'Authentication token must be in `query` or `header`')

    def __deserialize_file(self, response):
        """Deserializes body to file

        Saves response body into a file in a temporary folder,
        using the filename from the `Content-Disposition` header if provided.

        :param response:  RESTResponse.
        :return: file path.
        """
        fd, path = tempfile.mkstemp(dir=self.configuration.temp_folder_path)
        os.close(fd)
        os.remove(path)

        content_disposition = response.getheader("Content-Disposition")
        if content_disposition:
            filename = re.search(r'filename=[\'"]?([^\'"\s]+)[\'"]?',
                                 content_disposition).group(1)
            path = os.path.join(os.path.dirname(path), filename)

        with open(path, "wb") as f:
            f.write(response.data)

        return path

    def __deserialize_primitive(self, data, klass):
        """Deserializes string to primitive type.

        :param data: str.
        :param klass: class literal.

        :return: int, long, float, str, bool.
        """
        try:
            return klass(data)
        except UnicodeEncodeError:
            return six.text_type(data)
        except TypeError:
            return data

    def __deserialize_object(self, value):
        """Return an original value.

        :return: object.
        """
        return value

    def __deserialize_date(self, string):
        """Deserializes string to date.

        :param string: str.
        :return: date.
        """
        try:
            return parse(string).date()
        except ImportError:
            return string
        except ValueError:
            raise rest.ApiException(
                status=0,
                reason="Failed to parse `{0}` as date object".format(string))

    def __deserialize_datetime(self, string):
        """Deserializes string to datetime.

        The string should be in iso8601 datetime format.

        :param string: str.
        :return: datetime.
        """
        try:
            return parse(string)
        except ImportError:
            return string
        except ValueError:
            raise rest.ApiException(
                status=0,
                reason=(
                    "Failed to parse `{0}` as datetime object".format(string)))

    def __deserialize_model(self, data, klass):
        """Deserializes list or dict to model.

        :param data: dict, list.
        :param klass: class literal.
        :return: model object.
        """
        has_discriminator = False
        if (hasattr(klass, 'get_real_child_model') and
                klass.discriminator_value_class_map):
            has_discriminator = True

        if not klass.openapi_types and has_discriminator is False:
            return data

        kwargs = {}
        if (data is not None and klass.openapi_types is not None and
                isinstance(data, (list, dict))):
            for attr, attr_type in six.iteritems(klass.openapi_types):
                if klass.attribute_map[attr] in data:
                    value = data[klass.attribute_map[attr]]
                    kwargs[attr] = self.__deserialize(value, attr_type)

        instance = klass(**kwargs)

        if has_discriminator:
            klass_name = instance.get_real_child_model(data)
            if klass_name:
                instance = self.__deserialize(data, klass_name)
        return instance