"""Tests for Pydantic models validation."""

import pytest
from pydantic import ValidationError
from app.models.auth import LoginRequest, UserResponse, LoginResponse
from app.models.query import QuestionRequest, BenchQueryRequest, BackendQueryRequest, QueryResponse
from app.models.settings import EnvironmentSettings, EnvironmentSettingsUpdate, UserSettingsUpdate
from app.models.analysis import SessionCreate, SessionUpdate


class TestAuthModels:
    """Tests for authentication models."""

    def test_login_request_valid(self):
        """Test valid LoginRequest."""
        request = LoginRequest(
            login="12345678",
            client_ip="192.168.1.1"
        )

        assert request.login == "12345678"
        assert request.client_ip == "192.168.1.1"

    def test_login_request_invalid_format(self):
        """Test LoginRequest with invalid login format."""
        
        with pytest.raises(ValidationError):
            LoginRequest(login="1234567", client_ip="192.168.1.1")

        
        with pytest.raises(ValidationError):
            LoginRequest(login="abcd1234", client_ip="192.168.1.1")

    def test_user_response(self):
        """Test UserResponse model."""
        user = UserResponse(
            user_id="user-123",
            login="12345678",
            last_login_at="2024-01-01T00:00:00Z",
            created_at="2024-01-01T00:00:00Z"
        )

        assert user.user_id == "user-123"
        assert user.login == "12345678"

    def test_login_response(self):
        """Test LoginResponse model."""
        user = UserResponse(
            user_id="user-123",
            login="12345678",
            last_login_at="2024-01-01T00:00:00Z",
            created_at="2024-01-01T00:00:00Z"
        )

        response = LoginResponse(
            access_token="token123",
            token_type="bearer",
            user=user
        )

        assert response.access_token == "token123"
        assert response.token_type == "bearer"
        assert response.user.user_id == "user-123"


class TestQueryModels:
    """Tests for query models."""

    def test_question_request_valid(self):
        """Test valid QuestionRequest."""
        question = QuestionRequest(
            body="What is the weather?",
            with_docs=True
        )

        assert question.body == "What is the weather?"
        assert question.with_docs is True

    def test_question_request_default_with_docs(self):
        """Test QuestionRequest with default with_docs."""
        question = QuestionRequest(body="Test question")

        assert question.with_docs is True  

    def test_bench_query_request_valid(self):
        """Test valid BenchQueryRequest."""
        request = BenchQueryRequest(
            environment="ift",
            questions=[
                QuestionRequest(body="Q1", with_docs=True),
                QuestionRequest(body="Q2", with_docs=False)
            ]
        )

        assert request.environment == "ift"
        assert len(request.questions) == 2
        assert request.questions[0].body == "Q1"

    def test_backend_query_request_valid(self):
        """Test valid BackendQueryRequest."""
        request = BackendQueryRequest(
            environment="psi",
            questions=[
                QuestionRequest(body="Q1", with_docs=True)
            ],
            reset_session=True
        )

        assert request.environment == "psi"
        assert len(request.questions) == 1
        assert request.reset_session is True

    def test_backend_query_request_default_reset(self):
        """Test BackendQueryRequest with default reset_session."""
        request = BackendQueryRequest(
            environment="prod",
            questions=[QuestionRequest(body="Q1")]
        )

        assert request.reset_session is True  

    def test_query_response(self):
        """Test QueryResponse model."""
        # Test with RagResponseBenchList (parsed from dict)
        response = QueryResponse(
            request_id="req-123",
            timestamp="2024-01-01T00:00:00Z",
            environment="ift",
            response={"answers": []}  # Auto-parsed to RagResponseBenchList
        )

        assert response.request_id == "req-123"
        assert response.environment == "ift"
        # When dict with "answers" is provided, it's parsed as RagResponseBenchList
        from app.models.query import RagResponseBenchList
        assert isinstance(response.response, RagResponseBenchList)

    def test_query_response_with_dict(self):
        """Test QueryResponse model with plain dict (backend mode)."""
        # Use dict that doesn't match RagResponseBenchList schema
        response = QueryResponse(
            request_id="req-456",
            timestamp="2024-01-01T00:00:00Z",
            environment="psi",
            response={"result": "some data", "status": "ok"}
        )

        assert response.request_id == "req-456"
        assert response.environment == "psi"
        assert isinstance(response.response, dict)
        assert response.response["status"] == "ok"


class TestSettingsModels:
    """Tests for settings models."""

    def test_environment_settings_valid(self):
        """Test valid EnvironmentSettings."""
        settings = EnvironmentSettings(
            apiMode="bench",
            bearerToken="token123",
            systemPlatform="platform",
            systemPlatformUser="user",
            platformUserId="user-123",
            platformId="platform-123",
            withClassify=True,
            resetSessionMode=False
        )

        assert settings.apiMode == "bench"
        assert settings.bearerToken == "token123"
        assert settings.withClassify is True
        assert settings.resetSessionMode is False

    def test_environment_settings_defaults(self):
        """Test EnvironmentSettings with default values (nullable fields)."""
        settings = EnvironmentSettings()

        assert settings.apiMode == "bench"
        assert settings.bearerToken is None
        assert settings.systemPlatform is None
        assert settings.systemPlatformUser is None
        assert settings.platformUserId is None
        assert settings.platformId is None
        assert settings.withClassify is False
        assert settings.resetSessionMode is True

    def test_environment_settings_nullable_fields(self):
        """Test EnvironmentSettings with explicit None values."""
        settings = EnvironmentSettings(
            apiMode="backend",
            bearerToken=None,
            systemPlatform=None,
            withClassify=True
        )

        assert settings.apiMode == "backend"
        assert settings.bearerToken is None
        assert settings.systemPlatform is None
        assert settings.withClassify is True

    def test_environment_settings_update_partial(self):
        """Test EnvironmentSettingsUpdate for partial updates."""
        update = EnvironmentSettingsUpdate(
            bearerToken="new-token",
            withClassify=True
        )

        assert update.bearerToken == "new-token"
        assert update.withClassify is True
        assert update.apiMode is None  # Not provided, should be None
        assert update.systemPlatform is None

    def test_environment_settings_update_all_none(self):
        """Test EnvironmentSettingsUpdate with all fields as None."""
        update = EnvironmentSettingsUpdate()

        assert update.apiMode is None
        assert update.bearerToken is None
        assert update.systemPlatform is None
        assert update.withClassify is None

    def test_user_settings_update(self):
        """Test UserSettingsUpdate model with partial updates."""
        update = UserSettingsUpdate(
            settings={
                "ift": EnvironmentSettingsUpdate(apiMode="bench", withClassify=True),
                "psi": EnvironmentSettingsUpdate(bearerToken="token123")
            }
        )

        assert "ift" in update.settings
        assert "psi" in update.settings
        assert update.settings["ift"].apiMode == "bench"
        assert update.settings["ift"].withClassify is True
        assert update.settings["psi"].bearerToken == "token123"
        assert update.settings["psi"].apiMode is None  # Not provided

    def test_user_settings_update_empty(self):
        """Test UserSettingsUpdate with empty settings."""
        update = UserSettingsUpdate(settings={})

        assert update.settings == {}


class TestAnalysisModels:
    """Tests for analysis session models."""

    def test_session_create_valid(self):
        """Test valid SessionCreate."""
        session = SessionCreate(
            environment="ift",
            api_mode="bench",
            request=[{"body": "question 1", "with_docs": True}],
            response={"answers": ["answer 1"]},
            annotations={"0": {"rating": "correct"}}
        )

        assert session.environment == "ift"
        assert session.api_mode == "bench"
        assert len(session.request) == 1
        assert session.annotations == {"0": {"rating": "correct"}}

    def test_session_create_default_annotations(self):
        """Test SessionCreate with default empty annotations."""
        session = SessionCreate(
            environment="psi",
            api_mode="backend",
            request=[],
            response={}
        )

        assert session.annotations == {}

    def test_session_update_valid(self):
        """Test valid SessionUpdate."""
        update = SessionUpdate(
            annotations={
                "0": {
                    "overall": {
                        "rating": "incorrect",
                        "comment": "Ответ неполный"
                    },
                    "body_research": {
                        "issues": ["missing_info"],
                        "comment": "Не указаны процентные ставки"
                    }
                },
                "1": {
                    "overall": {
                        "rating": "correct",
                        "comment": "Ответ корректный"
                    }
                }
            }
        )

        assert "0" in update.annotations
        assert "1" in update.annotations
        assert update.annotations["0"]["overall"]["rating"] == "incorrect"
        assert update.annotations["1"]["overall"]["rating"] == "correct"

    def test_session_update_empty_annotations(self):
        """Test SessionUpdate with empty annotations."""
        update = SessionUpdate(annotations={})

        assert update.annotations == {}