"""Tests for the legacy model configuration migration."""

from agenteval.config import get_settings
from agenteval.storage.db import ModelConfigDB, ScenarioDB, ScenarioModelBindingDB
from cryptography.fernet import Fernet
from sqlmodel import select

from scripts.migrate_model_configs import migrate


def _legacy_scenario() -> ScenarioDB:
    scenario = ScenarioDB(id="legacy-scenario", name="legacy")
    scenario.set_llm_config(
        {"api_url": "https://models.example.com/v1/chat/completions", "api_key": "secret", "model": "chat"}
    )
    scenario.set_cases(
        [
            {
                "id": "case-1",
                "messages": ["hello"],
                "eval_rules": [
                    {
                        "type": "llm_score",
                        "params": {
                            "api_url": "https://models.example.com/v1/chat/completions",
                            "api_key": "secret",
                            "model": "chat",
                            "criteria": "准确",
                        },
                    }
                ],
            }
        ]
    )
    return scenario


def test_migration_dry_run_and_apply_are_secret_safe(db_session, monkeypatch):
    scenario = _legacy_scenario()
    db_session.add(scenario)
    db_session.commit()
    monkeypatch.setattr(get_settings(), "secret_key", Fernet.generate_key().decode("ascii"))

    preview = migrate(db_session, apply=False)
    assert preview == {"scenarios": 1, "bindings": 2, "configs": 1}
    assert db_session.exec(select(ModelConfigDB)).all() == []

    result = migrate(db_session, apply=True)
    assert result == preview
    configs = db_session.exec(select(ModelConfigDB)).all()
    bindings = db_session.exec(select(ScenarioModelBindingDB)).all()
    assert len(configs) == 1
    assert len(bindings) == 2
    assert configs[0].api_key_encrypted != "secret"

    refreshed = db_session.get(ScenarioDB, scenario.id)
    assert refreshed.get_llm_config() is None
    rule_params = refreshed.get_cases()[0]["eval_rules"][0]["params"]
    assert rule_params == {"criteria": "准确"}

    rerun = migrate(db_session, apply=True)
    assert rerun["bindings"] == 0
    assert len(db_session.exec(select(ModelConfigDB)).all()) == 1
    assert len(db_session.exec(select(ScenarioModelBindingDB)).all()) == 2