"""Static safety and inventory checks for the model_operations V0.1 DDL."""

from __future__ import annotations

import re
from pathlib import Path


BASE = Path(__file__).parent
EXPECTED_TABLES = {
    "ops_model_categories",
    "ops_banks",
    "ops_model_instances",
    "ops_model_versions",
    "ops_monitor_batches",
    "ops_monitor_results",
    "ops_monitor_feature_metrics",
    "ops_monitor_distributions",
    "ops_rule_versions",
    "ops_rule_items",
    "ops_monitor_evaluations",
    "ops_monitor_reviews",
    "ops_outbox_events",
    "ops_consumer_inbox",
    "ops_report_template_versions",
    "ops_prompt_versions",
    "ops_prompt_regression_runs",
    "ops_reports",
    "ops_report_revisions",
    "ops_bank_report_configs",
    "ops_workflows",
    "ops_workflow_stages",
    "ops_documents",
    "ops_usage_events",
}


def main() -> None:
    sql_files = sorted(BASE.glob("*.sql"))
    combined = "\n".join(path.read_text(encoding="utf-8") for path in sql_files)
    tables = {
        match.lower()
        for match in re.findall(
            r"CREATE\s+TABLE\s+IF\s+NOT\s+EXISTS\s+([a-zA-Z0-9_]+)",
            combined,
            flags=re.IGNORECASE,
        )
    }
    missing = EXPECTED_TABLES - tables
    extra = tables - EXPECTED_TABLES
    assert not missing, f"missing tables: {sorted(missing)}"
    assert not extra, f"unexpected tables: {sorted(extra)}"
    assert len(re.findall(r"CREATE\s+OR\s+REPLACE\s+VIEW", combined, re.I)) == 1
    assert not re.search(r"\b(DROP|TRUNCATE|DELETE\s+FROM)\b", combined, re.I)
    assert not re.search(
        r"\b(?:FROM|JOIN|UPDATE|INTO|REFERENCES|TABLE)\s+model_platform\.",
        combined,
        re.I,
    ), "cross-database SQL object reference found"
    for path in sql_files:
        line_count = len(path.read_text(encoding="utf-8").splitlines())
        assert line_count <= 500, f"{path.name} exceeds 500 lines"
    print(
        f"validated {len(sql_files)} SQL files: "
        f"{len(tables)} tables, 1 view, no destructive statements"
    )


if __name__ == "__main__":
    main()