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from __future__ import annotations

from unittest import mock

import google.api_core.exceptions
import pytest
from google.cloud.bigtable.instance import Instance
from google.cloud.bigtable.table import ClusterState

from airflow.exceptions import AirflowException
from airflow.providers.google.cloud.sensors.bigtable import BigtableTableReplicationCompletedSensor

PROJECT_ID = "test_project_id"
INSTANCE_ID = "test-instance-id"
GCP_CONN_ID = "test-gcp-conn-id"
TABLE_ID = "test-table-id"
IMPERSONATION_CHAIN = ["ACCOUNT_1", "ACCOUNT_2", "ACCOUNT_3"]


class BigtableWaitForTableReplicationTest:
    @pytest.mark.parametrize(
        "missing_attribute, project_id, instance_id, table_id",
        [
            ("instance_id", PROJECT_ID, "", TABLE_ID),
            ("table_id", PROJECT_ID, INSTANCE_ID, ""),
        ],
    )
    @mock.patch("airflow.providers.google.cloud.sensors.bigtable.BigtableHook")
    def test_empty_attribute(self, missing_attribute, project_id, instance_id, table_id, mock_hook):
        with pytest.raises(AirflowException) as ctx:
            BigtableTableReplicationCompletedSensor(
                project_id=project_id,
                instance_id=instance_id,
                table_id=table_id,
                task_id="id",
                gcp_conn_id=GCP_CONN_ID,
                impersonation_chain=IMPERSONATION_CHAIN,
            )
        err = ctx.value
        assert str(err) == f"Empty parameter: {missing_attribute}"
        mock_hook.assert_not_called()

    @mock.patch("airflow.providers.google.cloud.sensors.bigtable.BigtableHook")
    def test_wait_no_instance(self, mock_hook):
        mock_hook.return_value.get_instance.return_value = None

        op = BigtableTableReplicationCompletedSensor(
            project_id=PROJECT_ID,
            instance_id=INSTANCE_ID,
            table_id=TABLE_ID,
            task_id="id",
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )
        assert not op.poke(None)
        mock_hook.assert_called_once_with(
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )

    @mock.patch("airflow.providers.google.cloud.sensors.bigtable.BigtableHook")
    def test_wait_no_table(self, mock_hook):
        mock_hook.return_value.get_instance.return_value = mock.Mock(Instance)
        mock_hook.return_value.get_cluster_states_for_table.side_effect = mock.Mock(
            side_effect=google.api_core.exceptions.NotFound("Table not found.")
        )

        op = BigtableTableReplicationCompletedSensor(
            project_id=PROJECT_ID,
            instance_id=INSTANCE_ID,
            table_id=TABLE_ID,
            task_id="id",
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )
        assert not op.poke(None)
        mock_hook.assert_called_once_with(
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )

    @mock.patch("airflow.providers.google.cloud.sensors.bigtable.BigtableHook")
    def test_wait_not_ready(self, mock_hook):
        mock_hook.return_value.get_instance.return_value = mock.Mock(Instance)
        mock_hook.return_value.get_cluster_states_for_table.return_value = {"cl-id": ClusterState(0)}
        op = BigtableTableReplicationCompletedSensor(
            project_id=PROJECT_ID,
            instance_id=INSTANCE_ID,
            table_id=TABLE_ID,
            task_id="id",
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )
        assert not op.poke(None)
        mock_hook.assert_called_once_with(
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )

    @mock.patch("airflow.providers.google.cloud.sensors.bigtable.BigtableHook")
    def test_wait_ready(self, mock_hook):
        mock_hook.return_value.get_instance.return_value = mock.Mock(Instance)
        mock_hook.return_value.get_cluster_states_for_table.return_value = {"cl-id": ClusterState(4)}
        op = BigtableTableReplicationCompletedSensor(
            project_id=PROJECT_ID,
            instance_id=INSTANCE_ID,
            table_id=TABLE_ID,
            task_id="id",
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )
        assert op.poke(None)
        mock_hook.assert_called_once_with(
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
        )
