//! Configuration for a channel manager (and, therefore, channels)
//!
//! # Semver note
//!
//! Most types in this module are re-exported by `arti-client`.

use tor_config::impl_standard_builder;
use tor_config::{ConfigBuildError, PaddingLevel};

use derive_builder::Builder;
use serde::{Deserialize, Serialize};

/// Channel configuration
///
/// This type is immutable once constructed.  To build one, use
/// [`ChannelConfigBuilder`], or deserialize it from a string.
#[derive(Debug, Clone, Builder, Eq, PartialEq)]
#[builder(build_fn(error = "ConfigBuildError"))]
#[builder(derive(Debug, Serialize, Deserialize))]
pub struct ChannelConfig {
    /// Control of channel padding
    #[builder(default)]
    pub(crate) padding: PaddingLevel,
}
impl_standard_builder! { ChannelConfig }

#[cfg(feature = "testing")]
impl ChannelConfig {
    /// The padding level (accessor for testing)
    pub fn padding(&self) -> PaddingLevel {
        self.padding
    }
}

#[cfg(test)]
mod test {
    // @@ begin test lint list maintained by maint/add_warning @@
    #![allow(clippy::bool_assert_comparison)]
    #![allow(clippy::clone_on_copy)]
    #![allow(clippy::dbg_macro)]
    #![allow(clippy::mixed_attributes_style)]
    #![allow(clippy::print_stderr)]
    #![allow(clippy::print_stdout)]
    #![allow(clippy::single_char_pattern)]
    #![allow(clippy::unwrap_used)]
    #![allow(clippy::unchecked_duration_subtraction)]
    #![allow(clippy::useless_vec)]
    #![allow(clippy::needless_pass_by_value)]
    //! <!-- @@ end test lint list maintained by maint/add_warning @@ -->
    use super::*;

    #[test]
    fn channel_config() {
        let config = ChannelConfig::default();

        assert_eq!(PaddingLevel::Normal, config.padding);
    }
}