from pathlib import Path

from docforge.loaders import GriffeLoader, discover_module_paths
from docforge import MCPRenderer


def test_mcp_emits_all_modules(tmp_path: Path) -> None:
    project_root = Path(__file__).resolve().parents[3]
    loader = GriffeLoader()
    discovered_paths = discover_module_paths(
        "docforge",
        project_root=project_root,
    )

    project = loader.load_project(discovered_paths)

    renderer = MCPRenderer()
    renderer.generate_sources(project, tmp_path)

    emitted = {
        p.relative_to(tmp_path).as_posix()
        for p in (tmp_path / "modules").rglob("*.json")
    }

    expected = {
        f"modules/{m.path}.json"
        for m in project.get_all_modules()
    }

    missing = expected - emitted
    assert not missing, f"Missing MCP module JSON files: {missing}"

    # also assert nav.json exists
    assert (tmp_path / "nav.json").exists()