from typing import Any

"""Tests for streaming and pagination MCP tools."""

from __future__ import annotations

import pytest


class TestStreamImpactAnalysis:
    """Tests for stream_impact_analysis tool."""

    @pytest.mark.asyncio
    async def test_stream_impact_returns_depth_levels(
        self,
        mock_items_factory: Any,
        mock_links_factory: Any,
    ) -> None:
        """Test that impact analysis returns items at each depth level."""
        items = mock_items_factory(5)
        mock_links_factory(items)

        # Mock storage would be injected here
        # The actual implementation queries the database

    @pytest.mark.asyncio
    async def test_stream_impact_respects_max_depth(self) -> None:
        """Test that impact analysis respects max_depth parameter."""

    @pytest.mark.asyncio
    async def test_stream_impact_handles_missing_item(self) -> None:
        """Test error handling for missing item."""

    @pytest.mark.asyncio
    async def test_stream_impact_reports_progress(self, mock_context: Any) -> None:
        """Test that progress is reported via context."""


class TestGetMatrixPage:
    """Tests for get_matrix_page tool."""

    @pytest.mark.asyncio
    async def test_matrix_page_returns_rows(self) -> None:
        """Test that matrix page returns correct rows."""

    @pytest.mark.asyncio
    async def test_matrix_page_respects_page_size(self) -> None:
        """Test pagination respects page_size."""

    @pytest.mark.asyncio
    async def test_matrix_page_filters_by_view(self) -> None:
        """Test filtering by source/target view."""

    @pytest.mark.asyncio
    async def test_matrix_page_caps_at_100(self) -> None:
        """Test that page_size is capped at 100."""


class TestGetImpactByDepth:
    """Tests for get_impact_by_depth tool."""

    @pytest.mark.asyncio
    async def test_impact_by_depth_returns_single_level(self) -> None:
        """Test that only items at specified depth are returned."""

    @pytest.mark.asyncio
    async def test_impact_by_depth_zero_returns_root(self) -> None:
        """Test depth 0 returns root item."""

    @pytest.mark.asyncio
    async def test_impact_by_depth_indicates_children(self) -> None:
        """Test that has_children flag is set correctly."""


class TestGetItemsPage:
    """Tests for get_items_page tool."""

    @pytest.mark.asyncio
    async def test_items_page_basic(self) -> None:
        """Test basic pagination."""

    @pytest.mark.asyncio
    async def test_items_page_filter_by_view(self) -> None:
        """Test filtering by view."""

    @pytest.mark.asyncio
    async def test_items_page_filter_by_status(self) -> None:
        """Test filtering by status."""

    @pytest.mark.asyncio
    async def test_items_page_sorting(self) -> None:
        """Test sorting options."""


class TestGetLinksPage:
    """Tests for get_links_page tool."""

    @pytest.mark.asyncio
    async def test_links_page_basic(self) -> None:
        """Test basic pagination."""

    @pytest.mark.asyncio
    async def test_links_page_filter_by_type(self) -> None:
        """Test filtering by link type."""

    @pytest.mark.asyncio
    async def test_links_page_filter_by_source(self) -> None:
        """Test filtering by source item."""
