fix(prefix): prevent multiple prefix usage like ++++ping (#1)

src/commands/automation/piconly.rs

@@ -28,11 +28,10 @@ fn has_only_photo_attachments(msg: &Message) -> bool {
 }
 
 fn is_piconly_command_message(content: &str, prefix: &str) -> bool {
-    if !content.starts_with(prefix) {
+    let Some(without_prefix) = content.strip_prefix(prefix) else {
         return false;
-    }
-
-    let without_prefix = content.trim_start_matches(prefix).trim();
+    };
+    let without_prefix = without_prefix.trim();
     without_prefix
         .split_whitespace()
         .next()

src/commands/mod.rs

@@ -662,7 +662,7 @@ pub fn command_metadata_by_key(key: &str) -> Option<CommandMetadata> {
 }
 
 pub fn resolve_default_alias(alias: &str) -> Option<&'static str> {
-    let normalized = alias.trim().trim_start_matches('+').to_lowercase();
+    let normalized = alias.trim().to_lowercase();
     all_command_metadata().into_iter().find_map(|meta| {
         if meta
             .default_aliases

src/events/message.rs

@@ -110,11 +110,10 @@ pub async fn handle_message(ctx: &Context, msg: &Message) {
         return;
     }
 
-    if !content.starts_with(&prefix_value) {
+    let Some(without_prefix) = content.strip_prefix(&prefix_value) else {
         return;
-    }
-
-    let without_prefix = content.trim_start_matches(&prefix_value).trim();
+    };
+    let without_prefix = without_prefix.trim();
     if without_prefix.is_empty() {
         return;
     }