# Copyright 2025 DataRobot, Inc.
#
# 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.
import os
from unittest.mock import patch

import pytest
from agent import MyAgent


class TestMyAgentLlamaIndex:
    @pytest.fixture
    def agent(self):
        return MyAgent(api_key="test_key", api_base="test_base", verbose=True)

    def test_init_with_explicit_parameters(self):
        """Test initialization with explicitly provided parameters."""
        # Setup
        api_key = "test-api-key"
        api_base = "https://test-api-base.com"
        model = "test-model"
        verbose = True

        # Execute
        agent = MyAgent(
            api_key=api_key, api_base=api_base, model=model, verbose=verbose
        )

        # Assert
        assert agent.api_key == api_key
        assert agent.api_base == api_base
        assert agent.model == model
        assert agent.verbose is True

    @patch.dict(
        os.environ,
        {
            "DATAROBOT_API_TOKEN": "env-api-key",
            "DATAROBOT_ENDPOINT": "https://env-api-base.com",
        },
    )
    def test_init_with_environment_variables(self):
        """Test initialization using environment variables when no explicit parameters."""
        # Execute
        agent = MyAgent()

        # Assert
        assert agent.api_key == "env-api-key"
        assert agent.api_base == "https://env-api-base.com"
        assert agent.model is None
        assert agent.verbose is True

    @patch.dict(
        os.environ,
        {
            "DATAROBOT_API_TOKEN": "env-api-key",
            "DATAROBOT_ENDPOINT": "https://env-api-base.com",
        },
    )
    def test_init_explicit_params_override_env_vars(self):
        """Test explicit parameters override environment variables."""
        # Setup
        api_key = "explicit-api-key"
        api_base = "https://explicit-api-base.com"

        # Execute
        agent = MyAgent(api_key=api_key, api_base=api_base)

        # Assert
        assert agent.api_key == "explicit-api-key"
        assert agent.api_base == "https://explicit-api-base.com"

    def test_init_with_string_verbose_true(self):
        """Test initialization with string 'true' for verbose parameter."""
        # Setup
        verbose_values = ["true", "TRUE", "True"]

        for verbose in verbose_values:
            # Execute
            agent = MyAgent(verbose=verbose)

            # Assert
            assert agent.verbose is True

    def test_init_with_string_verbose_false(self):
        """Test initialization with string 'false' for verbose parameter."""
        # Setup
        verbose_values = ["false", "FALSE", "False"]

        for verbose in verbose_values:
            # Execute
            agent = MyAgent(verbose=verbose)

            # Assert
            assert agent.verbose is False

    def test_init_with_boolean_verbose(self):
        """Test initialization with boolean values for verbose parameter."""
        # Test with True
        agent = MyAgent(verbose=True)
        assert agent.verbose is True

        # Test with False
        agent = MyAgent(verbose=False)
        assert agent.verbose is False

    @patch.dict(os.environ, {}, clear=True)
    def test_init_with_additional_kwargs(self):
        """Test initialization with additional keyword arguments."""
        # Setup
        additional_kwargs = {"extra_param1": "value1", "extra_param2": 42}

        # Execute
        agent = MyAgent(**additional_kwargs)

        # Assert - Additional kwargs should be accepted but not stored as attributes
        assert agent.api_key is None  # Should fallback to env var or None
        assert agent.api_base is None  # Should fallback to env var or None
        assert agent.model is None
        assert agent.verbose is True

        # Verify that the extra parameters don't create attributes
        with pytest.raises(AttributeError):
            _ = agent.extra_param1

    @pytest.mark.parametrize(
        "api_base,expected_result",
        [
            ("https://example.com/api/v2/", "https://example.com/"),
            ("https://example.com/api/v2", "https://example.com/"),
            ("https://example.com/other-path", "https://example.com/other-path"),
            (
                "https://custom.example.com:8080/path/to/api/v2/",
                "https://custom.example.com:8080/path/to/",
            ),
            (
                "https://example.com/api/v2/deployment/",
                "https://example.com/api/v2/deployment/",
            ),
            (
                "https://example.com/api/v2/deployment",
                "https://example.com/api/v2/deployment",
            ),
            (
                "https://example.com/api/v2/genai/llmgw/chat/completions",
                "https://example.com/api/v2/genai/llmgw/chat/completions",
            ),
            (
                "https://example.com/api/v2/genai/llmgw/chat/completions/",
                "https://example.com/api/v2/genai/llmgw/chat/completions/",
            ),
            (None, "https://api.datarobot.com"),
        ],
    )
    def test_api_base_litellm_variations(self, api_base, expected_result):
        """Test api_base_litellm property with various URL formats."""
        with patch.dict(os.environ, {}, clear=True):
            agent = MyAgent(api_base=api_base)
            result = agent.api_base_litellm
            assert result == expected_result
