implement command root

crates/commands/src/commands.udl

@@ -1,5 +1,6 @@
 namespace commands {
     CommandResult parse_command(string prefix, string input);
+    string get_related_commands(string prefix, string input);
 };
 [Enum]
 interface CommandResult {

crates/commands/src/lib.rs

@@ -1,6 +1,6 @@
-use std::collections::HashMap;
+use std::{collections::HashMap, fmt::Write, usize};
 
-use command_parser::{parameter::ParameterValue, Tree};
+use command_parser::{parameter::ParameterValue, token::TokenMatchResult, Tree};
 
 uniffi::include_scaffolding!("commands");
 
@@ -143,3 +143,22 @@ pub fn parse_command(prefix: String, input: String) -> CommandResult {
         },
     )
 }
+
+pub fn get_related_commands(prefix: String, input: String) -> String {
+    let mut s = String::new();
+    for command in command_definitions::all() {
+        if command.tokens.first().map_or(false, |token| {
+            token
+                .try_match(Some(&input))
+                .map_or(false, |r| matches!(r, TokenMatchResult::MatchedValue))
+        }) {
+            writeln!(
+                &mut s,
+                "- **{prefix}{command}** - *{help}*",
+                help = command.help
+            )
+            .unwrap();
+        }
+    }
+    s
+}

crates/commands/src/main.rs

@@ -4,6 +4,16 @@ use command_parser::Tree;
 use commands::COMMAND_TREE;
 
 fn main() {
+    parse();
+}
+
+fn related() {
+    let cmd = std::env::args().nth(1).unwrap();
+    let related = commands::get_related_commands("pk;".to_string(), cmd);
+    println!("Related commands:\n{related}");
+}
+
+fn parse() {
     let cmd = std::env::args()
         .skip(1)
         .intersperse(" ".to_string())