package {package_name};
// TODO(b/303773055): Remove the annotation after access issue is resolved.
import android.compat.annotation.UnsupportedAppUsage;
{{ if not is_test_mode }}
{{ if is_read_write- }}
import android.provider.DeviceConfig;
import android.provider.DeviceConfig.Properties;
{{ endif }}
/** @hide */
public final class FeatureFlagsImpl implements FeatureFlags \{
{{ if is_read_write- }}
{{ for properties in properties_set }}
    private Properties {properties};
{{ endfor }}
{{ endif- }}

{{ for flag in flag_elements }}
    @Override
    @UnsupportedAppUsage
    public boolean {flag.method_name}() \{
    {{ -if flag.is_read_write }}
        if ({flag.properties} == null) \{
            {flag.properties} =
                getProperties(
                    "{flag.device_config_namespace}",
                    "{flag.device_config_flag}"
                );
        }
        return {flag.properties}
                .getBoolean(
                    "{flag.device_config_flag}",
                    {flag.default_value}
                );
    {{ else }}
        return {flag.default_value};
    {{ endif- }}
    }
{{ endfor }}

{{ -if is_read_write }}
    private Properties getProperties(
            String namespace,
            String flagName) \{
        Properties properties = null;
        try \{
            properties = DeviceConfig.getProperties(namespace);
        } catch (NullPointerException e) \{
            throw new RuntimeException(
                "Cannot read value of flag " + flagName + " from DeviceConfig. "
                + "It could be that the code using flag executed "
                + "before SettingsProvider initialization. "
                + "Please use fixed read-only flag by adding "
                + "is_fixed_read_only: true in flag declaration.",
                e
            );
        }

        return properties;
    }
{{ endif- }}
}
{{ else }}
{#- Generate only stub if in test mode #}
/** @hide */
public final class FeatureFlagsImpl implements FeatureFlags \{
{{ for flag in flag_elements }}
    @Override
    @UnsupportedAppUsage
    public boolean {flag.method_name}() \{
        throw new UnsupportedOperationException(
            "Method is not implemented.");
    }
{{ endfor }}
}
{{ endif }}