move transport config checks to respective modules

1 files changed, 20 insertions, 0 deletions

diff --git a/src/transport/mycelium/mod.rs b/src/transport/mycelium/mod.rs
index 7abcced..20abee8 100644
--- a/src/transport/mycelium/mod.rs
+++ b/src/transport/mycelium/mod.rs
@@ -91,6 +91,26 @@ pub(crate) struct MyceliumTransport {
     local_id: String,
 }
 
+/// This transport's options, checked when the configuration is loaded
+/// (`config::Settings::check`): a daemon elsewhere (`mycelium-rest-url`) by a URL, and
+/// none of the options only a supervised one takes with it; a private network with
+/// both its key and its name.
+pub(crate) fn check(settings: &crate::config::Settings) -> Result<()> {
+    if let Some(url) = &settings.mycelium_rest_url {
+        Url::parse(url).with_context(|| format!("mycelium-rest-url {url:?}"))?;
+        if let Some((name, _)) = settings.supervised_only().iter().find(|(_, set)| *set) {
+            anyhow::bail!(
+                "{name} is for a supervised Mycelium daemon and can't be combined with mycelium-rest-url"
+            );
+        }
+    }
+    // A private network has both; one alone would be ignored or invented.
+    if settings.mycelium_network_key_file.is_some() != settings.mycelium_network_name.is_some() {
+        anyhow::bail!("mycelium-network-key-file and mycelium-network-name go together");
+    }
+    Ok(())
+}
+
 /// The transport as `settings` configure it (`transport::start`): its daemon supervised
 /// (started, which can take a while) or one running elsewhere. None if `stop` came
 /// first.