//! Vanguard manager configuration

use std::time::Duration;

use tor_netdir::params::NetParameters;

use crate::VanguardMode;

/// The default L2 pool size.

const DEFAULT_L2_POOL_SIZE: usize = 4;

/// The default minimum lifetime of L2 guards.

const DEFAULT_L2_GUARD_LIFETIME_MIN: Duration = Duration::from_secs(3600 * 24);

/// The default maximum lifetime of L2 guards.

const DEFAULT_L2_GUARD_LIFETIME_MAX: Duration = Duration::from_secs(3600 * 24 * 12);

/// The default L3 pool size.

const DEFAULT_L3_POOL_SIZE: usize = 8;

/// The default minimum lifetime of L3 guards.

const DEFAULT_L3_GUARD_LIFETIME_MIN: Duration = Duration::from_secs(3600);

/// The default maximum lifetime of L3 guards.

const DEFAULT_L3_GUARD_LIFETIME_MAX: Duration = Duration::from_secs(3600 * 48);

/// A set of parameters, derived from the consensus document,

/// controlling the behavior of a [`VanguardMgr`](crate::vanguards::VanguardMgr).

///

/// Note: these are not part of [`VanguardConfig`](crate::VanguardConfig),

/// because like all Tor network parameters,

/// they can be overridden via the `TorClientConfig::override_net_params`.

//

// TODO(#1382): vanguards_enabled and vanguards_hs_service are currently unused,

// because the vanguard mode is read from the VanguardConfig.

#[derive(Debug, Clone, amplify::Getters)]

pub struct VanguardParams {

    /// The type of vanguards to use by default when building onion service circuits.

    #[getter(as_copy)]

    vanguards_enabled: VanguardMode,

    /// If higher than `vanguards-enabled`,

    /// and we are running an onion service,

    /// we use this level for all our onion service circuits.

    #[getter(as_copy)]

    vanguards_hs_service: VanguardMode,

    /// The number of guards in the L2 guardset

    #[getter(as_copy)]

    l2_pool_size: usize,

    /// The minimum lifetime of L2 guards

    #[getter(as_copy)]

    l2_lifetime_min: Duration,

    /// The maximum lifetime of L2 guards

    #[getter(as_copy)]

    l2_lifetime_max: Duration,

    /// The number of guards in the L3 guardset

    #[getter(as_copy)]

    l3_pool_size: usize,

    /// The minimum lifetime of L3 guards

    #[getter(as_copy)]

    l3_lifetime_min: Duration,

    /// The maximum lifetime of L3 guards

    #[getter(as_copy)]

    l3_lifetime_max: Duration,

}

impl Default for VanguardParams {

}

impl TryFrom<&NetParameters> for VanguardParams {

    type Error = tor_units::Error;

        /// Return a pair of `(min, max)` values representing a closed interval.

        ///

        /// If `min <= max`, returns `(min, max)`.

        /// Otherwise, returns `(default_min, default_max)`.

            } else {

            }

            DEFAULT_L2_GUARD_LIFETIME_MIN,

            DEFAULT_L2_GUARD_LIFETIME_MAX,

        );

            DEFAULT_L3_GUARD_LIFETIME_MIN,

            DEFAULT_L3_GUARD_LIFETIME_MAX,

        );

        Ok(VanguardParams {

        })

}