commands: implement response parser for tagtypes available

src/commands/connection_settings/tag_types_available.rs

@@ -1,12 +1,13 @@
 use crate::{
-    Request,
-    commands::{Command, RequestParserResult, ResponseAttributes, ResponseParserError},
+    commands::{expect_property_type, Command, RequestParserResult, ResponseAttributes, ResponseParserError}, Request
 };
 
 pub struct TagTypesAvailable;
 
+pub type TagTypesAvailableResponse = Vec<String>;
+
 impl Command for TagTypesAvailable {
-    type Response = ();
+    type Response = TagTypesAvailableResponse;
     const COMMAND: &'static str = "tagtypes available";
 
     fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
@@ -17,6 +18,19 @@ impl Command for TagTypesAvailable {
     fn parse_response(
         parts: ResponseAttributes<'_>,
     ) -> Result<Self::Response, ResponseParserError<'_>> {
-        unimplemented!()
+        let parts: Vec<_> = parts.into();
+
+        let mut tagtypes = Vec::with_capacity(parts.len());
+        for (key, value) in parts.into_iter() {
+            if key != "tagtype" {
+                return Err(ResponseParserError::UnexpectedProperty(key));
+            }
+
+            let tagtype = expect_property_type!(Some(value), "tagtype", Text).to_string();
+
+            tagtypes.push(tagtype);
+        }
+
+        Ok(tagtypes)
     }
 }