Function resolve_routing_path 

pub const fn resolve_routing_path(
    capabilities: &ProxyCapabilities,
    preference: TransportPreference,
) -> RoutingPath

Resolve the RoutingPath for a request given proxy capabilities and the caller’s transport preference.

Decision logic

Preference	supports_http3_tunnel	Result
PreferH3	true	H3OverUdp
PreferH3	false	H1H2OverTcp
ForceTcp	any	H1H2OverTcp
PersistentTcp	any	PersistentTcp

Example

use stygian_proxy::routing::{resolve_routing_path, TransportPreference};
use stygian_proxy::types::{ProxyCapabilities, RoutingPath};

let caps = ProxyCapabilities { supports_http3_tunnel: true, ..Default::default() };
assert_eq!(
    resolve_routing_path(&caps, TransportPreference::PreferH3),
    RoutingPath::H3OverUdp,
);
assert_eq!(
    resolve_routing_path(&caps, TransportPreference::ForceTcp),
    RoutingPath::H1H2OverTcp,
);
let fallback = ProxyCapabilities::default();
assert_eq!(
    resolve_routing_path(&fallback, TransportPreference::PreferH3),
    RoutingPath::H1H2OverTcp,
);