Break: make winner_team_number optional

src/models/battle_results.rs

@@ -1,5 +1,5 @@
 use prost::bytes::Buf;
-use prost::Message;
+use prost::{Enumeration, Message};
 use serde::Serialize;
 
 use crate::result::Result;
@@ -22,8 +22,8 @@ pub struct BattleResults {
     #[prost(int64, tag = "2")]
     pub timestamp: i64,
 
-    #[prost(enumeration = "TeamNumber", tag = "3")]
-    pub winner_team_number: i32,
+    #[prost(enumeration = "TeamNumber", optional, tag = "3")]
+    pub winner_team_number: Option<i32>,
 
     /// Replay's author results.
     #[prost(message, required, tag = "8")]
@@ -78,9 +78,7 @@ pub struct PlayerInfo {
     pub avatar: Avatar,
 }
 
-#[derive(
-    Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, prost::Enumeration, Serialize,
-)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, Enumeration, Serialize)]
 #[repr(i32)]
 pub enum TeamNumber {
     One = 1,

src/models/data.rs

@@ -3,8 +3,8 @@
 pub mod entity_method;
 pub mod packet;
 pub mod payload;
-pub mod subtype_2f;
 pub mod type_0;
+pub mod update_arena;
 
 use std::io::Read;
 

src/models/data/entity_method.rs

@@ -5,7 +5,7 @@ use serde::Serialize;
 use serde_with::serde_as;
 
 use crate::models::data::read_quirky_length;
-use crate::models::data::subtype_2f::Subtype2F;
+use crate::models::data::update_arena::UpdateArena;
 use crate::result::Result;
 
 #[serde_as]
@@ -13,7 +13,7 @@ use crate::result::Result;
 pub enum EntityMethod {
     Subtype2F {
         field_number: u64,
-        sub_type_2f: Subtype2F,
+        sub_type_2f: UpdateArena,
 
         /// Original payload for investigation.
         #[serde_as(as = "serde_with::hex::Hex")]
@@ -45,7 +45,7 @@ impl EntityMethod {
                 let message_length = read_quirky_length(&mut reader)?;
                 Self::Subtype2F {
                     field_number,
-                    sub_type_2f: Subtype2F::decode(&reader[..message_length])?,
+                    sub_type_2f: UpdateArena::decode(&reader[..message_length])?,
                     payload,
                 }
             }

src/models/data/update_arena.rs

@@ -1,8 +1,9 @@
 use prost::Message;
 use serde::Serialize;
 
+/// Subtype `0x2F`.
 #[derive(Message, Serialize)]
-pub struct Subtype2F {
+pub struct UpdateArena {
     #[prost(message, tag = "1")]
     pub players: Option<Players>,
 }

tests/battle_results.rs

@@ -11,7 +11,7 @@ fn player_results_ok() -> Result<()> {
     assert_eq!(battle_results_dat.arena_unique_id, 1661909200500084);
     let battle_results: BattleResults = battle_results_dat.try_into()?;
 
-    assert_eq!(battle_results.winner_team_number, 2);
+    assert_eq!(battle_results.winner_team_number, Some(2));
 
     assert_eq!(battle_results.author.team_number, 2);
     assert_eq!(battle_results.author.credits_earned, 59518);
@@ -117,3 +117,11 @@ fn victory_points_ok() -> Result<()> {
 
     Ok(())
 }
+
+#[test]
+fn draw_ok() -> Result<()> {
+    let battle_results = Replay::open(File::open("tests/replays/20230503_0027__helaas_pindakaas_A140_ASTRON_REX_105_2319058483532631656.wotbreplay")?)?
+        .read_battle_results()?;
+    assert_eq!(battle_results.winner_team_number, None);
+    Ok(())
+}