from os import environ
from laborious.utils.connectors_config import (build_mlflow_config,
                                               build_opc_config,
                                               build_postgres_config,
                                               build_mongodb_config)


def test_build_mlflow_config_with_env_vars():
    # Arrange
    environ['MLFLOW_HOST'] = 'http://test-host'
    environ['MLFLOW_PORT'] = '8080'
    environ['MLFLOW_USERNAME'] = 'test-user'
    environ['MLFLOW_PASSWORD'] = 'test-pass'

    # Act
    config = build_mlflow_config()

    # Assert
    assert config['host'] == 'http://test-host'
    assert config['port'] == 8080
    assert config['username'] == 'test-user'
    assert config['password'] == 'test-pass'


def test_build_mlflow_config_with_defaults():
    # Arrange
    # Clear any existing env vars
    environ.pop('MLFLOW_HOST', None)
    environ.pop('MLFLOW_PORT', None)
    environ.pop('MLFLOW_USERNAME', None)
    environ.pop('MLFLOW_PASSWORD', None)

    # Act
    config = build_mlflow_config()

    # Assert
    assert config['host'] == 'http://localhost'
    assert config['port'] == 5080
    assert config['username'] == 'aignosi'
    assert config['password'] == 'aignosi'


def test_build_opc_config_with_env_vars():
    # Arrange
    environ['OPC_CONFIG'] = '{"opc": {"name": "test-opc", "url": "opc.tcp://test:4840"}}'

    # Act
    config = build_opc_config()

    # Assert
    assert config['opc']['name'] == 'test-opc'
    assert config['opc']['url'] == 'opc.tcp://test:4840'


def test_build_opc_config_with_individual_env_vars():
    # Arrange
    environ.pop('OPC_CONFIG', None)
    environ['OPC_ID'] = '1'
    environ['OPC_URL'] = 'opc.tcp://test:4840'
    environ['OPC_SERVER_URI'] = 'opc.tcp://test:4840'
    environ['OPC_RECONNECTION_INTERVAL'] = '300'

    # Act
    config = build_opc_config()

    # Assert
    assert config['1']['id'] == '1'
    assert config['1']['url'] == 'opc.tcp://test:4840'
    assert config['1']['server_uri'] == 'opc.tcp://test:4840'
    assert config['1']['reconnection_interval'] == 300


def test_build_opc_config_with_defaults():
    # Arrange
    environ.pop('OPC_CONFIG', None)
    environ.pop('OPC_ID', None)
    environ.pop('OPC_URL', None)
    environ.pop('OPC_SERVER_URI', None)
    environ.pop('OPC_RECONNECTION_INTERVAL', None)

    # Act
    config = build_opc_config()

    # Assert
    assert config['1']['id'] == '1'
    assert config['1']['url'] == 'opc.tcp://localhost:4840'
    assert config['1']['server_uri'] == 'opc.tcp://localhost:4840'
    assert config['1']['reconnection_interval'] == 120


def test_build_postgres_config_with_env_vars():
    # Arrange
    environ['POSTGRES_HOST'] = 'test-host'
    environ['POSTGRES_PORT'] = '5433'
    environ['POSTGRES_USER'] = 'test-user'
    environ['POSTGRES_PASSWORD'] = 'test-pass'
    environ['POSTGRES_DBNAME'] = 'test-db'
    environ['POSTGRES_MIN_CONNECTIONS'] = '10'
    environ['POSTGRES_MAX_CONNECTIONS'] = '30'

    # Act
    config = build_postgres_config()

    # Assert
    assert config['host'] == 'test-host'
    assert config['port'] == 5433
    assert config['user'] == 'test-user'
    assert config['password'] == 'test-pass'
    assert config['dbname'] == 'test-db'
    assert config['min_connections'] == 10
    assert config['max_connections'] == 30


def test_build_postgres_config_with_defaults():
    # Arrange
    environ.pop('POSTGRES_HOST', None)
    environ.pop('POSTGRES_PORT', None)
    environ.pop('POSTGRES_USER', None)
    environ.pop('POSTGRES_PASSWORD', None)
    environ.pop('POSTGRES_DBNAME', None)
    environ.pop('POSTGRES_MIN_CONNECTIONS', None)
    environ.pop('POSTGRES_MAX_CONNECTIONS', None)

    # Act
    config = build_postgres_config()

    # Assert
    assert config['host'] == 'localhost'
    assert config['port'] == 5432
    assert config['user'] == 'sientia'
    assert config['password'] == 'sientia'
    assert config['dbname'] == 'sientia'
    assert config['min_connections'] == 5
    assert config['max_connections'] == 20


def test_build_mongo_db_config_with_env_vars():
    environ['MONGODB_USERNAME'] = 'sientia1'
    environ['MONGODB_PASSWORD'] = 'sientia1'
    environ['MONGODB_URL'] = 'localhost:27018'
    environ['MONGODB_DATABASE_NAME'] = 'test_db'
    environ['MONGODB_TTL_INDEX_HOURS'] = '1'

    assert build_mongodb_config() == {
        'connection_string': 'mongodb://sientia1:sientia1@localhost:27018',
        'database_name': 'test_db',
        'ttl_index_seconds': 3600
    }


def test_build_mongo_db_config_with_defaults():
    environ.pop('MONGODB_USERNAME', None)
    environ.pop('MONGODB_PASSWORD', None)
    environ.pop('MONGODB_DATABASE_NAME', None)
    environ.pop('MONGODB_URL', None)
    environ.pop('MONGODB_TTL_INDEX_HOURS', None)
    assert build_mongodb_config() == {
        'connection_string': 'mongodb://root:wKZDbMNU1c@localhost:27018',
        'database_name': 'sientia',
        'ttl_index_seconds': 3600
    }