#!/usr/bin/env python

# Copyright 2018 Google LLC
#
# Licensed 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.

"""Dialogflow API Detect Knowledge Base Intent Python sample with text inputs.

Examples:
  python detect_intent_knowledge.py -h
  python detect_intent_knowledge.py --project-id PROJECT_ID \
  --session-id SESSION_ID --knowledge-base-id KNOWLEDGE_BASE_ID \
  "hello" "how do I reset my password?"
"""

import argparse
import uuid


# [START dialogflow_detect_intent_knowledge]
def detect_intent_knowledge(
    project_id, session_id, language_code, knowledge_base_id, texts
):
    """Returns the result of detect intent with querying Knowledge Connector.

    Args:
    project_id: The GCP project linked with the agent you are going to query.
    session_id: Id of the session, using the same `session_id` between requests
              allows continuation of the conversation.
    language_code: Language of the queries.
    knowledge_base_id: The Knowledge base's id to query against.
    texts: A list of text queries to send.
    """
    from google.cloud import dialogflow_v2beta1 as dialogflow

    session_client = dialogflow.SessionsClient()

    session_path = session_client.session_path(project_id, session_id)
    print("Session path: {}\n".format(session_path))

    for text in texts:
        text_input = dialogflow.TextInput(text=text, language_code=language_code)

        query_input = dialogflow.QueryInput(text=text_input)

        knowledge_base_path = dialogflow.KnowledgeBasesClient.knowledge_base_path(
            project_id, knowledge_base_id
        )

        query_params = dialogflow.QueryParameters(
            knowledge_base_names=[knowledge_base_path]
        )

        request = dialogflow.DetectIntentRequest(
            session=session_path, query_input=query_input, query_params=query_params
        )
        response = session_client.detect_intent(request=request)

        print("=" * 20)
        print("Query text: {}".format(response.query_result.query_text))
        print(
            "Detected intent: {} (confidence: {})\n".format(
                response.query_result.intent.display_name,
                response.query_result.intent_detection_confidence,
            )
        )
        print("Fulfillment text: {}\n".format(response.query_result.fulfillment_text))
        print("Knowledge results:")
        knowledge_answers = response.query_result.knowledge_answers
        for answers in knowledge_answers.answers:
            print(" - Answer: {}".format(answers.answer))
            print(" - Confidence: {}".format(answers.match_confidence))


# [END dialogflow_detect_intent_knowledge]


if __name__ == "__main__":
    parser = argparse.ArgumentParser(
        description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
    )
    parser.add_argument(
        "--project-id", help="Project/agent id.  Required.", required=True
    )
    parser.add_argument(
        "--session-id",
        help="ID of the DetectIntent session. " "Defaults to a random UUID.",
        default=str(uuid.uuid4()),
    )
    parser.add_argument(
        "--language-code",
        help='Language code of the query. Defaults to "en-US".',
        default="en-US",
    )
    parser.add_argument(
        "--knowledge-base-id",
        help="The id of the Knowledge Base to query against",
        required=True,
    )
    parser.add_argument("texts", nargs="+", type=str, help="Text inputs.")

    args = parser.parse_args()

    detect_intent_knowledge(
        args.project_id,
        args.session_id,
        args.language_code,
        args.knowledge_base_id,
        args.texts,
    )