"""Integration checks use real bench workflows and deterministic responses."""
import importlib.util
import json
from pathlib import Path
import subprocess
import sys

import pytest
from infospace_bench import register_artifact
from infospace_bench.workflow import FixtureAssistedGenerationAdapter

REPO = Path(__file__).resolve().parents[1]
spec = importlib.util.spec_from_file_location("research_bench", REPO / "scripts/research_bench.py")
bench = importlib.util.module_from_spec(spec)
spec.loader.exec_module(bench)
FIXTURES = REPO / "research/bench/fixtures"


def initialize(tmp_path):
    return bench.initialize(FIXTURES / "source.md", tmp_path, "synthetic-probe")


def adapter():
    return FixtureAssistedGenerationAdapter.from_file(FIXTURES / "responses.yaml")


def test_pipeline_carries_source_and_previous_outputs_into_review(tmp_path):
    root = initialize(tmp_path)
    delegate = adapter()
    prompts = {}

    class Capture:
        def generate(self, request):
            prompts[request.stage_id] = request.prompt
            return delegate.generate(request)

    result = bench.execute(root, Capture())
    assert result["provider_calls_attempted"] == 4
    assert result["status"] == "completed"
    assert "server can reject submission" in prompts["critique"]
    assert "# Synthetic claims" in prompts["critique"]
    assert "# Local Draft State" in prompts["critique"]
    assert "only P01 exists" in prompts["critique"]
    assert "{{" not in prompts["critique"]
    assert (root / "output/evaluations/source-review.md").exists()
    index = (root / "artifacts/index.yaml").read_text()
    assert "provider: fixture" in index
    assert result["review_status"] == "unreviewed"
    assert result["evidence_kind"] == "synthetic"
    assert not list((root / "artifacts/entities").glob("*.md"))
    assert not (root / "patterns").exists()
    with pytest.raises(ValueError, match="already attempted"):
        bench.execute(root, Capture())


def test_mutated_source_and_multiple_sources_are_rejected(tmp_path):
    root = initialize(tmp_path)
    source = root / "artifacts/sources/source.md"
    original = source.read_bytes()
    source.write_text("changed")
    with pytest.raises(ValueError, match="Source changed"):
        bench.plan(root)
    source.write_bytes(original)
    register_artifact(root, artifact_id="source/second.md", path=source,
                      kind="source", title="Second")
    with pytest.raises(ValueError, match="Exactly one"):
        bench.plan(root)


def test_call_cap_prevents_provider_use(tmp_path):
    root = initialize(tmp_path)

    class NeverCall:
        def generate(self, request):
            pytest.fail("Provider must not be called")

    with pytest.raises(ValueError, match="exceed"):
        bench.execute(root, NeverCall(), max_calls=3)
    assert not (root / "reports/research-run.json").exists()


def test_failure_is_recorded_and_cannot_be_silently_retried(tmp_path):
    root = initialize(tmp_path)

    class Fail:
        def generate(self, request):
            raise RuntimeError("fixture failure")

    with pytest.raises(RuntimeError):
        bench.execute(root, Fail())
    receipt = json.loads((root / "reports/research-run.json").read_text())
    assert receipt["status"] == "failed"
    assert receipt["provider_calls_attempted"] == 1
    with pytest.raises(ValueError, match="already attempted"):
        bench.execute(root, adapter())


def test_unidentifiable_source_is_rejected_before_creating_workspace(tmp_path):
    source = tmp_path / "unidentified.md"
    source.write_text("# No bibliography")
    with pytest.raises(ValueError, match="frontmatter"):
        bench.initialize(source, tmp_path, "invalid")
    assert not (tmp_path / "infospaces/invalid").exists()


def test_negative_extraction_is_a_valid_result(tmp_path):
    from infospace_bench.workflow import AssistedGenerationResult

    root = initialize(tmp_path)

    class Negative:
        def generate(self, request):
            return AssistedGenerationResult(
                markdown="# No supported candidates\n\nInsufficient synthetic evidence.\n",
                provider="fixture",
            )

    assert bench.execute(root, Negative())["status"] == "completed"
    assert not list((root / "artifacts/entities").glob("*.md"))


def test_cli_refuses_fixture_output_on_real_source(tmp_path):
    source = tmp_path / "source.md"
    source.write_text((FIXTURES / "source.md").read_text().replace(
        "evidence_kind: synthetic", "evidence_kind: primary"))
    root = bench.initialize(source, tmp_path, "primary-probe")
    result = subprocess.run([
        sys.executable, str(REPO / "scripts/research_bench.py"), "run", str(root),
        "--fixture-responses", str(FIXTURES / "responses.yaml"),
    ], capture_output=True, text=True)
    assert result.returncode != 0
    assert "only run against synthetic" in result.stderr
    assert not (root / "reports/research-run.json").exists()