lla_plugin_utils/
actions.rsuse std::collections::HashMap;
pub struct Action {
pub handler: Box<dyn Fn(&[String]) -> Result<(), String> + Send + Sync>,
pub help: ActionHelp,
}
pub struct ActionHelp {
pub usage: String,
pub description: String,
pub examples: Vec<String>,
}
pub struct ActionRegistry {
actions: HashMap<String, Action>,
}
impl ActionRegistry {
pub fn new() -> Self {
Self {
actions: HashMap::new(),
}
}
pub fn register<F>(&mut self, name: &str, help: ActionHelp, handler: F)
where
F: Fn(&[String]) -> Result<(), String> + Send + Sync + 'static,
{
self.actions.insert(
name.to_string(),
Action {
handler: Box::new(handler),
help,
},
);
}
pub fn handle(&self, action: &str, args: &[String]) -> Result<(), String> {
match self.actions.get(action) {
Some(action) => (action.handler)(args),
None => Err(format!("Unknown action: {}", action)),
}
}
pub fn get_help(&self) -> Vec<(&str, &ActionHelp)> {
self.actions
.iter()
.map(|(name, action)| (name.as_str(), &action.help))
.collect()
}
}
impl Default for ActionRegistry {
fn default() -> Self {
Self::new()
}
}
#[macro_export]
macro_rules! define_action {
($registry:expr, $name:expr, $usage:expr, $description:expr, $examples:expr, $handler:expr) => {
$registry.register(
$name,
$crate::actions::ActionHelp {
usage: $usage.to_string(),
description: $description.to_string(),
examples: $examples.iter().map(|s| s.to_string()).collect(),
},
$handler,
);
};
}