#
# 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.

import requests

from airflow.exceptions import AirflowException
from airflow.hooks.base_hook import BaseHook

OK_STATUS_CODE = 202


class OpenFaasHook(BaseHook):
    """
    Interact with OpenFaaS to query, deploy, invoke and update function

    :param function_name: Name of the function, Defaults to None
    :type query: str
    :param conn_id: openfaas connection to use, Defaults to open_faas_default
        for example host : http://openfaas.faas.com, Conn Type : Http
    :type conn_id: str
    """

    GET_FUNCTION = "/system/function/"
    INVOKE_ASYNC_FUNCTION = "/async-function/"
    DEPLOY_FUNCTION = "/system/functions"
    UPDATE_FUNCTION = "/system/functions"

    def __init__(self,
                 function_name=None,
                 conn_id='open_faas_default',
                 *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.function_name = function_name
        self.conn_id = conn_id

    def get_conn(self):
        conn = self.get_connection(self.conn_id)
        return conn

    def deploy_function(self, overwrite_function_if_exist, body):
        """
        Deploy OpenFaaS function
        """
        if overwrite_function_if_exist:
            self.log.info("Function already exist %s going to update", self.function_name)
            self.update_function(body)
        else:
            url = self.get_conn().host + self.DEPLOY_FUNCTION
            self.log.info("Deploying function %s", url)
            response = requests.post(url, body)
            if response.status_code != OK_STATUS_CODE:
                self.log.error("Response status %d", response.status_code)
                self.log.error("Failed to deploy")
                raise AirflowException('failed to deploy')
            else:
                self.log.info("Function deployed %s", self.function_name)

    def invoke_async_function(self, body):
        """
        Invoking function
        """
        url = self.get_conn().host + self.INVOKE_ASYNC_FUNCTION + self.function_name
        self.log.info("Invoking function %s", url)
        response = requests.post(url, body)
        if response.ok:
            self.log.info("Invoked %s", self.function_name)
        else:
            self.log.error("Response status %d", response.status_code)
            raise AirflowException('failed to invoke function')

    def update_function(self, body):
        """
        Update OpenFaaS function
        """
        url = self.get_conn().host + self.UPDATE_FUNCTION
        self.log.info("Updating function %s", url)
        response = requests.put(url, body)
        if response.status_code != OK_STATUS_CODE:
            self.log.error("Response status %d", response.status_code)
            self.log.error("Failed to update response %s", response.content.decode("utf-8"))
            raise AirflowException('failed to update ' + self.function_name)
        else:
            self.log.info("Function was updated")

    def does_function_exist(self):
        """
        Whether OpenFaaS function exists or not
        """
        url = self.get_conn().host + self.GET_FUNCTION + self.function_name

        response = requests.get(url)
        if response.ok:
            return True
        else:
            self.log.error("Failed to find function %s", self.function_name)
            return False

@@ -781,16 +781,46 @@
 cense.%0A%0A
+from typing import Any, Dict%0A%0A
 import r
@@ -1131,21 +1131,29 @@
   :type 
-query
+function_name
 : str%0A  
@@ -1585,17 +1585,24 @@
  conn_id
-=
+: str = 
 'open_fa
@@ -1647,16 +1647,24 @@
 *kwargs)
+ -%3E None
 :%0A      
@@ -1925,23 +1925,53 @@
 if_exist
-, body)
+: bool, body: Dict%5Bstr, Any%5D) -%3E None
 :%0A      
@@ -2736,33 +2736,57 @@
 ction(self, body
-)
+: Dict%5Bstr, Any%5D) -%3E None
 :%0A        %22%22%22%0A  
@@ -3269,17 +3269,41 @@
 lf, body
-)
+: Dict%5Bstr, Any%5D) -%3E None
 :%0A      
@@ -3862,16 +3862,16 @@
 ated%22)%0A%0A
-
     def 
@@ -3891,24 +3891,32 @@
 _exist(self)
+ -%3E bool
 :%0A        %22%22

improve typing for openfaas provider (#9883)