from pathlib import Path

from aether_ad.core.context import load_context
from aether_ad.core.engine import GenesisEngine
from aether_ad.core.genome import load_genome

ROOT = Path(__file__).resolve().parent.parent


def test_e2e_no_llm():
    """End-to-end with no LLM backend (template fallbacks) should still produce seeds."""
    product = load_genome(ROOT / "aether_ad" / "data" / "products" / "watch_a.json")
    context = load_context(ROOT / "aether_ad" / "data" / "tensions" / "default_tensions.json")
    engine = GenesisEngine(
        llm=None,
        context=context,
        seed_count_per_run=6,
        keep_top_k=3,
        rng_seed=7,
    )
    scored = engine.generate(
        product=product,
        tension_id="T01_first_challenge_first_success",
        persona_text="첫 출근하는 25세 신입사원, 두근거림",
        duration=15,
    )
    assert len(scored) == 3
    for s in scored:
        assert s.seed.beats, "every seed must have beats"
        assert 0.0 <= s.score.final <= 1.0
    assert max(s.score.final for s in scored) > 0.0