"""build_user_prompt is the heart of the AI log — verify shape."""
from __future__ import annotations

import pytest

pytest.importorskip("httpx")
pytest.importorskip("tenacity")
pytest.importorskip("pydantic_settings")

from datetime import datetime, timezone

from app.services.openrouter import SYSTEM_PROMPT, build_user_prompt


def test_system_prompt_has_voice_anchors():
    # Tripwires for prompt regressions.
    for marker in ["Objective", "Lens", "Discipline", "watch list"]:
        assert marker in SYSTEM_PROMPT


def test_build_user_prompt_includes_anchor_and_reference():
    out = build_user_prompt(
        today=datetime(2026, 5, 15, tzinfo=timezone.utc),
        anchor="2026-03-04",
        quotes_by_group={"equity": [{"symbol": "^GSPC", "label": "S&P 500"}]},
        headlines_by_bucket={"world": [{"when": "2026-05-15T10:00", "source": "BBC", "title": "x"}]},
        reference_line="S&P 7501 · VIX 18",
    )
    assert "2026-05-15" in out
    assert "Anchor reference date: 2026-03-04" in out
    assert "S&P 7501" in out
    assert "WORLD" in out
    assert "^GSPC" in out


def test_build_user_prompt_omits_empty_buckets():
    out = build_user_prompt(
        today=datetime(2026, 5, 15, tzinfo=timezone.utc),
        anchor=None,
        quotes_by_group={},
        headlines_by_bucket={"world": [], "tech": [{"when": "2026-05-15T10:00",
                                                    "source": "X", "title": "AI thing"}]},
    )
    assert "TECH" in out
    assert "WORLD" not in out