refactor option write / reads

src/commands/delete.rs

@@ -1,8 +1,13 @@
 use std::io::Cursor;
 
-use bytes::{BufMut as _, BytesMut};
+use bytes::BytesMut;
 
-use crate::{Result, buffer::try_get_string, connection::Connection, database::Database};
+use crate::{
+    Result,
+    buffer::{ArchiveBuf as _, ArchiveBufMut},
+    connection::Connection,
+    database::Database,
+};
 
 #[derive(Debug, Clone)]
 pub struct Delete {
@@ -14,22 +19,15 @@ impl Delete {
         let value = db.delete(&self.key).await;
 
         let mut buf = BytesMut::new();
-        match value {
-            Some(v) => {
-                buf.put_u8(1);
-                buf.put_u32(v.len() as u32);
-                buf.put_slice(&v);
-            }
-            None => buf.put_u8(0),
-        }
+        buf.put_option(value, ArchiveBufMut::put_bytes_with_length);
 
         connection.write(buf.into()).await?;
 
         Ok(())
     }
 
-    pub fn parse(bytes: &mut Cursor<&[u8]>) -> Result<Self> {
-        let key = try_get_string(bytes)?;
+    pub fn parse(buf: &mut Cursor<&[u8]>) -> Result<Self> {
+        let key = buf.try_get_string()?;
 
         Ok(Self { key })
     }