import re
import stat
from pathlib import Path

from database.manager import Base


ROOT = Path(__file__).resolve().parents[1]


def _migration_created_tables():
    tables = set()
    for path in (ROOT / "migrations").glob("*.sql"):
        text = path.read_text(encoding="utf-8", errors="ignore")
        for match in re.finditer(
            r"CREATE\s+TABLE\s+(?:IF\s+NOT\s+EXISTS\s+)?(?:public\.)?([\w_]+)",
            text,
            re.IGNORECASE,
        ):
            tables.add(match.group(1))
    return tables


def test_all_orm_metadata_tables_have_create_table_migration():
    metadata_tables = set(Base.metadata.tables)
    migration_tables = _migration_created_tables()

    assert metadata_tables - migration_tables == set()


def test_v2_blocker_migrations_exist_and_are_runner_readable():
    required = [
        "031_fix_incidents_autoheal_schema.sql",
        "032_market_intel_core_schema.sql",
        "033_fix_host_health_probe_labels.sql",
        "034_add_embedding_signature_to_rag_tables.sql",
        "035_core_business_tables_baseline.sql",
        "036_normalize_incidents_dual_columns.sql",
        "037_add_action_plans_guardrails.sql",
    ]

    for filename in required:
        path = ROOT / "migrations" / filename
        assert path.exists(), f"missing migration: {filename}"
        mode = stat.S_IMODE(path.stat().st_mode)
        assert mode & stat.S_IRGRP, f"{filename} is not group-readable"
        assert mode & stat.S_IROTH, f"{filename} is not world-readable"


def test_legacy_zero_byte_database_decoys_do_not_return():
    for filename in ["momo.db", "momo_data.db", "momo_database.db"]:
        assert not (ROOT / "database" / filename).exists()