"""Testy API regulation_context_provider — per-grant formatting i snapshoty."""
from core.match.matcher_helpers import (
    build_nabory_context_for_matcher,
    format_grant_for_matcher_prompt,
)
from core.search.regulation_context_provider import (
    format_regulation_context_for_prompt,
    get_regulation_context_for_candidates,
)
from core.search.regulation_snapshot import regulation_snapshot_store


def test_get_regulation_context_returns_dict_keyed_by_grant_id():
    candidates = [
        {"id": "g1", "name": "Program A", "description": "Opis A"},
        {"id": "g2", "program": "PARP", "description": "Opis B"},
    ]
    ctx = get_regulation_context_for_candidates(candidates)
    assert isinstance(ctx, dict)
    assert "g1" in ctx
    assert "g2" in ctx
    assert ctx["g1"][0]["program"] == "Program A"


def test_get_regulation_context_uses_snapshots_when_available():
    snap = regulation_snapshot_store.create_snapshot(
        program="PARP|SMART TEST",
        call_name="SMART TEST",
        source_url="https://example.com/regulamin.pdf",
        raw_text="§ 1 Beneficjent musi spełniać warunki kwalifikowalności kosztów kwalifikowalnych.",
        module="regulamin",
    )
    candidates = [{
        "id": "grant-smart",
        "program": "PARP",
        "name": "SMART TEST",
        "regulation_urls": [snap.source_url],
    }]
    ctx = get_regulation_context_for_candidates(candidates, k_per_grant=3)
    assert ctx["grant-smart"]
    assert ctx["grant-smart"][0]["source"] == "snapshot"
    assert "kwalifikowalności" in ctx["grant-smart"][0]["excerpt"].lower()


def test_format_regulation_context_for_prompt_accepts_grant_id():
    ctx = {
        "g1": [{"program": "Prog1", "doc_role": "regulamin", "excerpt": "Fragment regulaminu 1"}],
        "g2": [{"program": "Prog2", "doc_role": "ogloszenie", "excerpt": "Fragment regulaminu 2"}],
    }
    out = format_regulation_context_for_prompt(ctx, "g1")
    assert "Prog1" in out
    assert "[regulamin]" in out
    assert "Fragment regulaminu 1" in out
    assert "Prog2" not in out


def test_format_regulation_context_for_prompt_without_grant_id_flattens_dict():
    ctx = {
        "g1": [{"program": "Prog1", "doc_role": "rwp", "excerpt": "A"}],
        "g2": [{"program": "Prog2", "doc_role": "ogloszenie", "excerpt": "B"}],
    }
    out = format_regulation_context_for_prompt(ctx)
    assert "Prog1" in out
    assert "Prog2" in out
    assert "[rwp]" in out


def test_format_grant_for_matcher_prompt_with_two_arg_formatter():
    grant = {"id": "g1", "program": "PARP", "name": "SMART", "description": "Test"}
    ctx = get_regulation_context_for_candidates([grant])
    block = format_grant_for_matcher_prompt(
        grant,
        ctx,
        format_regulation_context_for_prompt,
    )
    assert "g1" in block
    assert "SMART" in block
    assert "Test" in block


def test_build_nabory_context_for_matcher_no_signature_error():
    nabory = [
        {"id": "g1", "program": "PARP", "name": "A", "description": "d1"},
        {"id": "g2", "program": "FENG", "name": "B", "description": "d2"},
    ]
    ctx = get_regulation_context_for_candidates(nabory)
    result = build_nabory_context_for_matcher(
        nabory,
        ctx,
        format_regulation_context_for_prompt,
    )
    assert "g1" in result
    assert "g2" in result