"""
Unit tests for compose() — the brain.

Tests cover: message body generation, CTA, template params,
category-specific outputs, and customer-facing messages.
"""
import sys
import os
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from app.core.compose import compose


# ── Sample contexts for testing ─────────────────────────────────────────────

DENTIST_CATEGORY = {
    "slug": "dentists",
    "voice": {"tone": "peer_clinical", "vocab_taboo": ["cure", "guaranteed"]},
    "peer_stats": {"avg_rating": 4.4, "avg_ctr": 0.030},
    "digest": [
        {"id": "d_2026W17_jida_fluoride", "kind": "research",
         "title": "3-mo fluoride recall cuts caries recurrence 38% better than 6-mo",
         "source": "JIDA Oct 2026, p.14", "trial_n": 2100,
         "patient_segment": "high_risk_adults"}
    ],
    "offer_catalog": [],
    "seasonal_beats": [],
    "trend_signals": [],
}

MERCHANT_DRMEERA = {
    "merchant_id": "m_001_drmeera",
    "category_slug": "dentists",
    "identity": {"name": "Dr. Meera's Dental Clinic", "owner_first_name": "Meera",
                 "city": "Delhi", "locality": "Lajpat Nagar", "verified": True,
                 "languages": ["en", "hi"]},
    "subscription": {"status": "active", "plan": "Pro", "days_remaining": 82},
    "performance": {"views": 2410, "calls": 18, "directions": 45, "ctr": 0.021,
                    "delta_7d": {"views_pct": 0.18, "calls_pct": -0.05}},
    "offers": [{"id": "o1", "title": "Dental Cleaning @ ₹299", "status": "active"}],
    "customer_aggregate": {"total_unique_ytd": 540, "lapsed_180d_plus": 78,
                           "retention_6mo_pct": 0.38, "high_risk_adult_count": 124},
    "signals": ["stale_posts:22d", "ctr_below_peer_median"],
    "review_themes": [],
}

TRIGGER_RESEARCH = {
    "id": "trg_001", "scope": "merchant", "kind": "research_digest",
    "source": "external", "merchant_id": "m_001_drmeera",
    "payload": {"category": "dentists", "top_item_id": "d_2026W17_jida_fluoride"},
    "urgency": 2, "suppression_key": "research:dentists:2026-W17",
    "expires_at": "2026-05-03T00:00:00Z",
}

TRIGGER_PERF_DIP = {
    "id": "trg_004", "scope": "merchant", "kind": "perf_dip",
    "source": "internal", "merchant_id": "m_002",
    "payload": {"metric": "calls", "delta_pct": -0.50, "window": "7d"},
    "urgency": 4, "suppression_key": "perf_dip:m_002:calls:2026-W17",
}

CUSTOMER_PRIYA = {
    "customer_id": "c_001_priya",
    "merchant_id": "m_001_drmeera",
    "identity": {"name": "Priya", "language_pref": "hi-en mix"},
    "relationship": {"visits_total": 4, "last_visit": "2026-05-12"},
    "state": "lapsed_soft",
}

TRIGGER_RECALL = {
    "id": "trg_003", "scope": "customer", "kind": "recall_due",
    "source": "internal", "merchant_id": "m_001_drmeera",
    "customer_id": "c_001_priya",
    "payload": {"service_due": "6_month_cleaning",
                "available_slots": [{"label": "Wed 5 Nov, 6pm"}, {"label": "Thu 6 Nov, 5pm"}]},
    "urgency": 3, "suppression_key": "recall:c_001:6mo",
}


# ── Tests ────────────────────────────────────────────────────────────────────

def test_research_digest_compose():
    result = compose(DENTIST_CATEGORY, MERCHANT_DRMEERA, TRIGGER_RESEARCH)
    assert "body" in result
    assert len(result["body"]) > 30
    # Should mention JIDA
    assert "JIDA" in result["body"] or "jida" in result["body"].lower()
    # Should mention the merchant's patients
    assert "124" in result["body"] or "high-risk" in result["body"]
    # Should have a CTA
    assert "?" in result["body"]
    print(f"PASS: research_digest — {result['body'][:80]}...")


def test_perf_dip_compose():
    merchant = {**MERCHANT_DRMEERA, "merchant_id": "m_002",
                "performance": {"views": 980, "calls": 4, "delta_7d": {"calls_pct": -0.50}}}
    result = compose(DENTIST_CATEGORY, merchant, TRIGGER_PERF_DIP)
    assert "body" in result
    assert "50%" in result["body"] or "calls" in result["body"]
    print(f"PASS: perf_dip — {result['body'][:80]}...")


def test_recall_customer_facing():
    result = compose(DENTIST_CATEGORY, MERCHANT_DRMEERA, TRIGGER_RECALL, CUSTOMER_PRIYA)
    assert "body" in result
    assert "Priya" in result["body"]
    assert "Dental Clinic" in result["body"] or "Dr. Meera" in result["body"]
    print(f"PASS: recall — {result['body'][:80]}...")


def test_no_taboo_terms():
    result = compose(DENTIST_CATEGORY, MERCHANT_DRMEERA, TRIGGER_RESEARCH)
    body_l = result["body"].lower()
    assert "cure" not in body_l
    assert "guaranteed" not in body_l
    print("PASS: no taboo terms in dentist output")


def test_compose_returns_required_keys():
    result = compose(DENTIST_CATEGORY, MERCHANT_DRMEERA, TRIGGER_RESEARCH)
    for key in ("body", "cta", "rationale"):
        assert key in result, f"Missing key: {key}"
    print("PASS: all required keys present")


if __name__ == "__main__":
    test_research_digest_compose()
    test_perf_dip_compose()
    test_recall_customer_facing()
    test_no_taboo_terms()
    test_compose_returns_required_keys()
    print("\nAll compose tests passed!")