Break: add initial meta.json support

src/models/battle_results_dat.rs

@@ -35,17 +35,13 @@ impl BattleResultsDat {
     pub fn from_reader(reader: impl Read) -> Result<Self> {
         serde_pickle::from_reader(reader, Default::default()).map_err(Error::UnpickleFailed)
     }
-
-    /// Decodes the battle results from the internal buffer.
-    pub fn decode_battle_results(&self) -> Result<BattleResults> {
-        BattleResults::decode(self.buffer.as_ref()).map_err(Error::DecodeFailed)
-    }
 }
 
 impl TryInto<BattleResults> for BattleResultsDat {
     type Error = Error;
 
+    /// Decodes the battle results from the internal buffer.
     fn try_into(self) -> Result<BattleResults> {
-        self.decode_battle_results()
+        BattleResults::decode(self.buffer.as_ref()).map_err(Error::DecodeFailed)
     }
 }

src/models/meta.rs

@@ -0,0 +1,28 @@
+use std::io::Read;
+
+use serde::Deserialize;
+
+use crate::error::Error;
+use crate::result::Result;
+
+/// The model for `meta.json`.
+#[derive(Deserialize)]
+pub struct Meta {
+    #[serde(rename = "playerName")]
+    pub player_name: String,
+
+    #[serde(rename = "arenaUniqueId")]
+    pub arena_unique_id: String,
+
+    #[serde(rename = "battleDuration")]
+    pub battle_duration_secs: f64,
+
+    #[serde(rename = "vehicleCompDescriptor")]
+    pub tank_id: u16,
+}
+
+impl Meta {
+    pub fn from_reader(reader: impl Read) -> Result<Self> {
+        serde_json::from_reader(reader).map_err(Error::JsonDecodeFailed)
+    }
+}