import unittest
from pathlib import Path

try:
    import tomllib
except ModuleNotFoundError:  # pragma: no cover
    import tomli as tomllib


ROOT = Path(__file__).resolve().parents[1]
AGENT_PATH = ROOT / ".codex" / "agents" / "research-agent.toml"
RESEARCH_README = ROOT / "docs" / "research" / "README.md"


class ResearchAgentConfigTests(unittest.TestCase):
    def test_research_agent_toml_has_required_codex_fields(self):
        data = tomllib.loads(AGENT_PATH.read_text(encoding="utf-8"))

        self.assertEqual(data["name"], "research-agent")
        self.assertIn("FEM theory", data["description"])
        self.assertEqual(data["sandbox_mode"], "read-only")
        self.assertEqual(data["model_reasoning_effort"], "extra high")
        self.assertIn("developer_instructions", data)

    def test_research_agent_instructions_enforce_boundaries(self):
        instructions = AGENT_PATH.read_text(encoding="utf-8")

        for required_text in (
            "Do not implement code.",
            "Do not finalize FEM formulations.",
            "Do not run Abaqus, Nastran, or any reference solver.",
            "Do not generate reference CSVs.",
            "docs/AGENT_RULES.md",
            "docs/requirements/<feature-id>.md",
            "Separate verified facts from inference.",
        ):
            self.assertIn(required_text, instructions)

    def test_research_agent_instructions_define_output_contract(self):
        instructions = AGENT_PATH.read_text(encoding="utf-8")

        for required_text in (
            "Source Inventory",
            "Candidate Benchmarks",
            "Verification Relevance",
            "Applicability Limits",
            "Downstream Handoff",
        ):
            self.assertIn(required_text, instructions)

    def test_research_agent_instructions_define_source_policy(self):
        instructions = AGENT_PATH.read_text(encoding="utf-8")

        for required_text in (
            "ASME V&V 10",
            "Abaqus Verification Guide",
            "Abaqus Benchmarks Guide",
            "NAFEMS benchmarks",
            "NASA FEMCI",
            "MMS and MES papers",
        ):
            self.assertIn(required_text, instructions)

    def test_research_document_guide_defines_output_contract(self):
        guide = RESEARCH_README.read_text(encoding="utf-8")

        for required_text in (
            "Source Reliability Tier",
            "Source Inventory",
            "Candidate Benchmarks",
            "Verification Relevance",
            "Applicability Limits",
            "Downstream Handoff",
        ):
            self.assertIn(required_text, guide)


if __name__ == "__main__":
    unittest.main()