"""Testy kontekstu regulaminowego w generatorze (external_context → snapshot boost)."""
from unittest.mock import MagicMock, patch

from agents.generator_agent import DocumentGeneratorAgent


def _state(**overrides):
    base = {
        "project_id": "proj-1",
        "namespace": "tenant_test",
        "document_type": "Eurogranty PARP",
        "project_description": "Projekt B+R",
        "external_context": {
            "regulation_snapshot_id": "snap-abc",
            "regulation_urls": ["https://example.com/reg.pdf"],
            "required_sections": ["Opis projektu", "Budżet"],
            "grant_name": "Eurogranty",
            "program_type": "PARP",
        },
    }
    base.update(overrides)
    return base


@patch("core.search.regulation_snapshot.regulation_snapshot_store")
def test_build_regulation_boost_uses_snapshot_id(mock_store):
    snap = MagicMock()
    snap.key_rules = ["Reguła 1", "Reguła 2"]
    snap.version_hash = "hash123"
    mock_store.get_by_id.return_value = snap

    agent = DocumentGeneratorAgent()
    boost = agent._build_regulation_boost(_state())

    assert "[REGULATION SNAPSHOT v5.0" in boost
    assert "Reguła 1" in boost
    mock_store.get_by_id.assert_called_once_with("snap-abc")


def test_regulation_context_present_from_external_context():
    agent = DocumentGeneratorAgent()
    assert agent._regulation_context_present(_state(), context="Brak RAG") is True


def test_regulation_context_present_from_formatted_boost():
    agent = DocumentGeneratorAgent()
    ctx = "Kontekst regulaminowy (wiele dokumentów):\n- [regulamin] Test"
    assert agent._regulation_context_present({}, context=ctx) is True


@patch("agents.generator_agent.DocumentGeneratorAgent._build_regulation_boost")
@patch("agents.generator_agent.get_parent_document_retriever")
def test_fetch_context_includes_regulation_boost(mock_retriever, mock_boost):
    mock_retriever.return_value.invoke.return_value = []
    mock_boost.return_value = "\n\n[REGULATION SNAPSHOT v5.0 - TEST]:\n- reguła\n"

    agent = DocumentGeneratorAgent()
    out = agent.fetch_context(
        {
            **_state(),
            "sections_plan": [{"title": "Wstęp", "type": "intro"}],
            "current_section_idx": 0,
            "graph_step": 0,
            "traceability_data": {},
        }
    )

    assert "[REGULATION SNAPSHOT v5.0" in out["context"]
    mock_boost.assert_called_once()


def test_build_generator_external_context_extracts_regulation_fields():
    from endpoints.generator import _build_generator_external_context

    project = MagicMock()
    project.external_context = {
        "regulation_snapshot_id": "snap-1",
        "regulation_urls": ["https://a.pdf", "https://b.pdf"],
        "regulation_url": "https://a.pdf",
        "required_sections": ["Sekcja A"],
        "grant_name": "Program X",
    }
    project.program_name = "Program X"
    project.program_type = "PARP"
    project.grant_id = "grant-1"

    ctx = _build_generator_external_context(project)

    assert ctx["regulation_snapshot_id"] == "snap-1"
    assert ctx["required_sections"] == ["Sekcja A"]
    assert "https://a.pdf" in ctx["regulation_urls"]
    assert ctx["grant_name"] == "Program X"