import importlib.util
import unittest
from pathlib import Path


def load_round04_runner():
    script_path = Path(__file__).resolve().parents[1] / "scripts" / "run_round04_blind_routing.py"
    spec = importlib.util.spec_from_file_location("run_round04_blind_routing", script_path)
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)
    return module


class Round04BlindRoutingTests(unittest.TestCase):
    def test_loads_frozen_blind_inputs_without_expected_routing(self):
        runner = load_round04_runner()
        root = Path(__file__).resolve().parents[1]

        input_set = runner.load_blind_inputs(root)

        self.assertEqual(input_set["blind_input_set_id"], "round04_blind_inputs_2026-06-18_v0.1")
        self.assertEqual(len(input_set["inputs"]), 38)
        for item in input_set["inputs"]:
            self.assertIn("input_id", item)
            self.assertIn("category_for_owner_review", item)
            self.assertIn("input_text", item)
            self.assertNotIn("expected_selector_behavior", item)
            self.assertNotIn("expected_primary_model", item)

    def test_evaluates_blind_input_without_answer_key_fields(self):
        runner = load_round04_runner()
        root = Path(__file__).resolve().parents[1]
        input_set = runner.load_blind_inputs(root)

        result = runner.evaluate_blind_input(root, input_set["inputs"][0])

        self.assertEqual(result["input_id"], "R04-BI-001")
        self.assertEqual(result["category_for_owner_review"], "explicit_no_call_fact_lookup")
        self.assertIn("selected_models", result)
        self.assertIn("rejected_models", result)
        self.assertIn("no_call", result)
        self.assertIn("routing_notes", result)
        self.assertNotIn("expected_selector_behavior", result)
        self.assertNotIn("expected_primary_model", result)

    def test_report_states_results_are_not_scored_against_expected_routing(self):
        runner = load_round04_runner()
        root = Path(__file__).resolve().parents[1]
        input_set = runner.load_blind_inputs(root)
        results = [
            runner.evaluate_blind_input(root, item)
            for item in input_set["inputs"][:2]
        ]

        report_text = runner.render_report(input_set, results)

        self.assertIn("# Round 04 Blind Routing Evaluation Report", report_text)
        self.assertIn("Expected routing labels: `not included before first blind run`", report_text)
        self.assertIn("Inputs evaluated: 2", report_text)
        self.assertIn("R04-BI-001", report_text)
        self.assertIn("R04-BI-002", report_text)


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