From c546e2ef6c69bb1c6a86093f3cc7b2dab20d6ac4 Mon Sep 17 00:00:00 2001
From: Max Audron <audron@cocaine.farm>
Date: Sat, 25 Apr 2020 19:35:29 +0200
Subject: finish parsing of primitive types

---
 src/protocol/primitive/bufferinfo.rs | 74 ++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 src/protocol/primitive/bufferinfo.rs

(limited to 'src/protocol/primitive/bufferinfo.rs')

diff --git a/src/protocol/primitive/bufferinfo.rs b/src/protocol/primitive/bufferinfo.rs
new file mode 100644
index 0000000..4c69286
--- /dev/null
+++ b/src/protocol/primitive/bufferinfo.rs
@@ -0,0 +1,74 @@
+use std::vec::Vec;
+
+use failure::Error;
+
+use crate::protocol::primitive::deserialize::{Deserialize, DeserializeUTF8};
+use crate::protocol::primitive::serialize::{Serialize, SerializeUTF8};
+use crate::protocol::primitive::String;
+
+extern crate bytes;
+
+#[derive(Clone, Debug, std::cmp::PartialEq)]
+pub struct BufferInfo {
+    pub id: i32,         // a unique, sequential id for the buffer
+    pub network_id: i32, // NetworkId of the network the buffer belongs to
+    pub buffer_type: BufferType,
+    pub name: String, // BufferName as displayed to the user
+}
+
+impl Serialize for BufferInfo {
+    fn serialize(&self) -> Result<Vec<u8>, Error> {
+        let mut values: Vec<u8> = Vec::new();
+
+        values.append(&mut i32::serialize(&self.id)?);
+        values.append(&mut i32::serialize(&self.network_id)?);
+        values.append(&mut i16::serialize(&(self.buffer_type as i16))?);
+        values.append(&mut vec![0, 0, 0, 0]);
+        values.append(&mut String::serialize_utf8(&self.name)?);
+
+        Ok(values)
+    }
+}
+
+impl Deserialize for BufferInfo {
+    fn parse(b: &[u8]) -> Result<(usize, Self), Error> {
+        let (_, id) = i32::parse(&b[0..4])?;
+        let (_, network_id) = i32::parse(&b[4..8])?;
+        let (_, buffer_type) = i16::parse(&b[8..10])?;
+
+        // There are 4 additional undocumted Bytes in the BufferInfo
+        // so we start at byte 14
+        let (size, name) = String::parse_utf8(&b[14..])?;
+
+        return Ok((
+            14 + size,
+            Self {
+                id,
+                network_id,
+                buffer_type: BufferType::from(buffer_type),
+                name,
+            },
+        ));
+    }
+}
+
+#[repr(i16)]
+#[derive(Copy, Clone, Debug, std::cmp::PartialEq)]
+pub enum BufferType {
+    Status = 0x01,
+    Channel = 0x02,
+    Query = 0x04,
+    Group = 0x08,
+}
+
+impl From<i16> for BufferType {
+    fn from(value: i16) -> Self {
+        match value {
+            0x01 => return Self::Status,
+            0x02 => return Self::Channel,
+            0x04 => return Self::Query,
+            0x08 => return Self::Group,
+            _ => unimplemented!(),
+        }
+    }
+}
-- 
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