# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------

"""
FILE: sample_recognize_custom_entities.py

DESCRIPTION:
    This sample demonstrates how to recognize custom entities in documents.
    Recognizing custom entities is also available as an action type through the begin_analyze_actions API.

    For information on regional support of custom features and how to train a model to
    recognize custom entities, see https://aka.ms/azsdk/textanalytics/customentityrecognition

USAGE:
    python sample_recognize_custom_entities.py

    Set the environment variables with your own values before running the sample:
    1) AZURE_LANGUAGE_ENDPOINT - the endpoint to your Language resource.
    2) AZURE_LANGUAGE_KEY - your Language subscription key
    3) CUSTOM_ENTITIES_PROJECT_NAME - your Language Studio project name
    4) CUSTOM_ENTITIES_DEPLOYMENT_NAME - your Language Studio deployment name
"""


def sample_recognize_custom_entities() -> None:
    # [START recognize_custom_entities]
    import os
    from azure.core.credentials import AzureKeyCredential
    from azure.ai.textanalytics import TextAnalyticsClient

    endpoint = os.environ["AZURE_LANGUAGE_ENDPOINT"]
    key = os.environ["AZURE_LANGUAGE_KEY"]
    project_name = os.environ["CUSTOM_ENTITIES_PROJECT_NAME"]
    deployment_name = os.environ["CUSTOM_ENTITIES_DEPLOYMENT_NAME"]
    path_to_sample_document = os.path.abspath(
        os.path.join(
            os.path.abspath(__file__),
            "..",
            "./text_samples/custom_entities_sample.txt",
        )
    )

    text_analytics_client = TextAnalyticsClient(
        endpoint=endpoint,
        credential=AzureKeyCredential(key),
    )

    with open(path_to_sample_document) as fd:
        document = [fd.read()]

    poller = text_analytics_client.begin_recognize_custom_entities(
        document,
        project_name=project_name,
        deployment_name=deployment_name
    )

    document_results = poller.result()
    for custom_entities_result in document_results:
        if custom_entities_result.kind == "CustomEntityRecognition":
            for entity in custom_entities_result.entities:
                print(
                    "Entity '{}' has category '{}' with confidence score of '{}'".format(
                        entity.text, entity.category, entity.confidence_score
                    )
                )
        elif custom_entities_result.is_error is True:
            print("...Is an error with code '{}' and message '{}'".format(
                custom_entities_result.error.code, custom_entities_result.error.message
                )
            )
    # [END recognize_custom_entities]


if __name__ == "__main__":
    sample_recognize_custom_entities()