"""
Copyright OpenSearch Contributors
SPDX-License-Identifier: Apache-2.0
"""

import pytest
import mock
from textwrap import dedent

from opensearchpy.exceptions import ConnectionError
from opensearchpy import OpenSearch, RequestsHttpConnection

from .utils import estest, load_data, run, TEST_INDEX_NAME
from src.opensearch_sql_cli.opensearch_connection import OpenSearchConnection

INVALID_ENDPOINT = "http://invalid:9200"
OPENSEARCH_ENDPOINT = "https://opensearch:9200"
AES_ENDPOINT = "https://fake.es.amazonaws.com"
AUTH = ("username", "password")


class TestExecutor:
    def load_data_to_es(self, connection):
        doc = {"a": "aws"}
        load_data(connection, doc)

    @estest
    def test_query(self, connection):
        self.load_data_to_es(connection)

        assert run(connection, "select * from %s" % TEST_INDEX_NAME) == dedent(
            """\
            fetched rows / total rows = 1/1
            +-----+
            | a   |
            |-----|
            | aws |
            +-----+"""
        )

    @estest
    @pytest.mark.skip(reason="Test is not compatible with OpenSearch >= 2.3.0, it returns HTTP/503 instead of HTTP/400")
    def test_query_nonexistent_index(self, connection):
        self.load_data_to_es(connection)

        expected = {
            "reason": "Error occurred in OpenSearch engine: no such index [non-existed]",
            "details": "org.opensearch.index.IndexNotFoundException: no such index [non-existed]\nFor more "
            "details, please send request for Json format to see the raw response from OpenSearch "
            "engine.",
            "type": "IndexNotFoundException",
        }

        with mock.patch("src.opensearch_sql_cli.opensearch_connection.click.secho") as mock_secho:
            run(connection, "select * from non-existed")

        mock_secho.assert_called_with(message=str(expected), fg="red")

    def test_connection_fail(self):
        test_executor = OpenSearchConnection(endpoint=INVALID_ENDPOINT)
        err_message = "Can not connect to endpoint %s" % INVALID_ENDPOINT

        with mock.patch("sys.exit") as mock_sys_exit, mock.patch(
            "src.opensearch_sql_cli.opensearch_connection.click.secho"
        ) as mock_secho:
            test_executor.set_connection()

        mock_sys_exit.assert_called()
        mock_secho.assert_called_with(message=err_message, fg="red")

    def test_lost_connection(self):
        test_esexecutor = OpenSearchConnection(endpoint=INVALID_ENDPOINT)

        def side_effect_set_connection(is_reconnected):
            if is_reconnected:
                pass
            else:
                return ConnectionError()

        with mock.patch("src.opensearch_sql_cli.opensearch_connection.click.secho") as mock_secho, mock.patch.object(
            test_esexecutor, "set_connection"
        ) as mock_set_connection:
            # Assume reconnection success
            mock_set_connection.side_effect = side_effect_set_connection(is_reconnected=True)
            test_esexecutor.handle_server_close_connection()

            mock_secho.assert_any_call(message="Reconnecting...", fg="green")
            mock_secho.assert_any_call(message="Reconnected! Please run query again", fg="green")
            # Assume reconnection fail
            mock_set_connection.side_effect = side_effect_set_connection(is_reconnected=False)
            test_esexecutor.handle_server_close_connection()

            mock_secho.assert_any_call(message="Reconnecting...", fg="green")
            mock_secho.assert_any_call(
                message="Connection Failed. Check your OpenSearch is running and then come back", fg="red"
            )

    def test_reconnection_exception(self):
        test_executor = OpenSearchConnection(endpoint=INVALID_ENDPOINT)

        with pytest.raises(ConnectionError) as error:
            assert test_executor.set_connection(True)

    def test_select_client(self):
        od_test_executor = OpenSearchConnection(endpoint=OPENSEARCH_ENDPOINT, http_auth=AUTH)
        aes_test_executor = OpenSearchConnection(endpoint=AES_ENDPOINT, use_aws_authentication=True)

        with mock.patch.object(od_test_executor, "get_opensearch_client") as mock_od_client, mock.patch.object(
            OpenSearchConnection, "is_sql_plugin_installed", return_value=True
        ):
            od_test_executor.set_connection()
            mock_od_client.assert_called()

        with mock.patch.object(aes_test_executor, "get_aes_client") as mock_aes_client, mock.patch.object(
            OpenSearchConnection, "is_sql_plugin_installed", return_value=True
        ):
            aes_test_executor.set_connection()
            mock_aes_client.assert_called()

    def test_get_od_client(self):
        od_test_executor = OpenSearchConnection(endpoint=OPENSEARCH_ENDPOINT, http_auth=AUTH)

        with mock.patch.object(OpenSearch, "__init__", return_value=None) as mock_es:
            od_test_executor.get_opensearch_client()

            mock_es.assert_called_with(
                [OPENSEARCH_ENDPOINT],
                http_auth=AUTH,
                verify_certs=False,
                ssl_context=od_test_executor.ssl_context,
                connection_class=RequestsHttpConnection,
            )

    def test_get_aes_client(self):
        aes_test_executor = OpenSearchConnection(endpoint=AES_ENDPOINT, use_aws_authentication=True)

        with mock.patch.object(OpenSearch, "__init__", return_value=None) as mock_es:
            aes_test_executor.get_aes_client()

            mock_es.assert_called_with(
                hosts=[AES_ENDPOINT],
                http_auth=aes_test_executor.aws_auth,
                use_ssl=True,
                verify_certs=True,
                connection_class=RequestsHttpConnection,
            )