import pytest

from src.server.models.config import (
    AppConfig,
    ConfigUpdate,
    LoggingConfig,
    SchedulerConfig,
    ValidationResult,
)


def test_scheduler_defaults_and_validation():
    sched = SchedulerConfig()
    assert sched.enabled is True
    assert sched.interval_minutes == 60

    with pytest.raises(ValueError):
        SchedulerConfig(interval_minutes=0)


def test_logging_config_defaults_and_values():
    log = LoggingConfig()
    assert log.level == "INFO"
    assert log.file is None
    assert log.backup_count == 3


def test_appconfig_and_config_update_apply_to():
    base = AppConfig()

    upd = ConfigUpdate(
        scheduler=SchedulerConfig(enabled=False, interval_minutes=30)
    )
    new = upd.apply_to(base)
    assert isinstance(new, AppConfig)
    assert new.scheduler.enabled is False
    assert new.scheduler.interval_minutes == 30

    upd2 = ConfigUpdate(other={"b": 2})
    new2 = upd2.apply_to(base)
    assert new2.other.get("b") == 2


def test_backup_and_validation():
    cfg = AppConfig()
    # default backups disabled -> valid
    res: ValidationResult = cfg.validate_config()
    assert res.valid is True

    # enable backups but leave path empty -> invalid
    cfg.backup.enabled = True
    cfg.backup.path = ""
    res2 = cfg.validate_config()
    assert res2.valid is False
    assert any("backup.path" in e for e in res2.errors)