from app.screener.ai_news import telegram as tg


def _row(ticker, score, reason="r"):
    return {"ticker": ticker, "score_raw": score, "reason": reason,
            "news_count": 5, "tokens_input": 100, "tokens_output": 20,
            "model": "m"}


def test_build_message_includes_top_sections():
    msg = tg.build_message(
        asof="2026-05-13",
        top_pos=[_row("005930", 8.5, "HBM 호재")],
        top_neg=[_row("373220", -6.3, "수주 지연")],
        tokens_input=10000, tokens_output=2000,
    )
    assert "AI 뉴스 분석" in msg
    assert "호재 Top" in msg
    assert "악재 Top" in msg
    assert "005930" in msg
    # score는 MarkdownV2 escape 거쳐 "8\.5" 형태 ('.' 가 reserved)
    assert "8\\.5" in msg
    assert "HBM" in msg
    assert "373220" in msg


def test_build_message_escapes_markdownv2_specials():
    msg = tg.build_message(
        asof="2026-05-13",
        top_pos=[_row("005930", 3.0, "테스트(괄호) [대괄호]")],
        top_neg=[],
        tokens_input=100, tokens_output=20,
    )
    # MarkdownV2 특수문자 ( ) [ ] 이 escape 되어야 함
    assert r"\(" in msg or r"\)" in msg
    assert r"\[" in msg or r"\]" in msg


def test_build_message_cost_won_line():
    msg = tg.build_message(
        asof="2026-05-13", top_pos=[], top_neg=[],
        tokens_input=10000, tokens_output=2000,
    )
    # tokens_input × 0.0013 + tokens_output × 0.0065 = 13 + 13 = ₩26
    assert "₩26" in msg or "₩ 26" in msg or "₩" in msg


def test_build_message_empty_lists():
    msg = tg.build_message(
        asof="2026-05-13", top_pos=[], top_neg=[],
        tokens_input=0, tokens_output=0,
    )
    # 빈 리스트라도 헤더는 있어야 함
    assert "호재 Top" in msg
    assert "악재 Top" in msg


def test_build_message_includes_mapping_line():
    msg = tg.build_message(
        asof="2026-05-14",
        top_pos=[_row("005930", 8.5, "HBM 호재")],
        top_neg=[],
        tokens_input=1000, tokens_output=200,
        mapping={"total_articles": 35, "matched_pairs": 50, "hit_tickers": 42},
    )
    assert "매핑" in msg
    assert "42" in msg
    assert "50" in msg
    assert "35" in msg


def test_build_message_without_mapping_omits_line():
    msg = tg.build_message(
        asof="2026-05-14",
        top_pos=[],
        top_neg=[],
        tokens_input=1000, tokens_output=200,
    )
    assert "매핑" not in msg
