#!/usr/bin/env python3
"""CI check: ensure no duplicate model IDs exist in provider configs.

Catches the class of bugs where a rename introduces a duplicate entry
(e.g. PR #225 kimi-for-coding -> kimi-k2.5 when kimi-k2.5 already existed).

Runtime target: < 2 seconds.
"""

from __future__ import annotations

import sys
from pathlib import Path

# Allow running from repo root
REPO_ROOT = Path(__file__).parent.parent
sys.path.insert(0, str(REPO_ROOT))


def check_openrouter_models() -> list[str]:
    """Check OPENROUTER_MODELS for duplicate model IDs."""
    try:
        from hermes_cli.models import OPENROUTER_MODELS
    except ImportError:
        return []

    errors = []
    seen: dict[str, int] = {}
    for i, (model_id, _desc) in enumerate(OPENROUTER_MODELS):
        if model_id in seen:
            errors.append(
                f"  OPENROUTER_MODELS: duplicate '{model_id}' "
                f"(index {seen[model_id]} and {i})"
            )
        else:
            seen[model_id] = i
    return errors


def check_provider_models() -> list[str]:
    """Check _PROVIDER_MODELS for duplicate model IDs within each provider list."""
    from hermes_cli.models import _PROVIDER_MODELS

    errors = []
    for provider, models in _PROVIDER_MODELS.items():
        seen: dict[str, int] = {}
        for i, model_id in enumerate(models):
            if model_id in seen:
                errors.append(
                    f"  _PROVIDER_MODELS['{provider}']: duplicate '{model_id}' "
                    f"(index {seen[model_id]} and {i})"
                )
            else:
                seen[model_id] = i
    return errors


def main() -> int:
    errors = []
    errors.extend(check_openrouter_models())
    errors.extend(check_provider_models())

    if errors:
        print(f"FAIL: {len(errors)} duplicate model(s) found:")
        for e in errors:
            print(e)
        return 1

    print("OK: no duplicate model entries")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())