add match meta header to logs

1 files changed, 36 insertions, 1 deletions

diff --git a/planetwars-localdev/src/match_runner/mod.rs b/planetwars-localdev/src/match_runner/mod.rs
index 2715b96..50b7a3b 100644
--- a/planetwars-localdev/src/match_runner/mod.rs
+++ b/planetwars-localdev/src/match_runner/mod.rs
@@ -3,23 +3,38 @@ mod match_context;
 mod pw_match;
 
 use std::{
+    io::Write,
     path::PathBuf,
     sync::{Arc, Mutex},
 };
 
 use match_context::MatchCtx;
 use planetwars_rules::PwConfig;
+use serde::{Deserialize, Serialize};
 
 use crate::BotConfig;
 
 use self::match_context::{EventBus, PlayerHandle};
 
 pub struct MatchConfig {
+    pub map_name: String,
     pub map_path: PathBuf,
     pub log_path: PathBuf,
     pub players: Vec<MatchBot>,
 }
 
+#[derive(Serialize, Deserialize)]
+pub struct MatchMeta {
+    pub map_name: String,
+    pub timestamp: chrono::DateTime<chrono::Local>,
+    pub players: Vec<PlayerInfo>,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct PlayerInfo {
+    pub name: String,
+}
+
 pub struct MatchBot {
     pub name: String,
     pub bot_config: BotConfig,
@@ -48,7 +63,27 @@ pub async fn run_match(config: MatchConfig) {
             (player_id, Box::new(handle) as Box<dyn PlayerHandle>)
         })
         .collect();
-    let log_file = std::fs::File::create(config.log_path).expect("could not create log file");
+    let mut log_file = std::fs::File::create(config.log_path).expect("could not create log file");
+
+    // assemble the math meta struct
+    let match_meta = MatchMeta {
+        map_name: config.map_name.clone(),
+        timestamp: chrono::Local::now(),
+        players: config
+            .players
+            .iter()
+            .map(|bot| PlayerInfo {
+                name: bot.name.clone(),
+            })
+            .collect(),
+    };
+    write!(
+        log_file,
+        "{}\n",
+        serde_json::to_string(&match_meta).unwrap()
+    )
+    .unwrap();
+
     let match_ctx = MatchCtx::new(event_bus, players, log_file);
 
     let match_state = pw_match::PwMatch::create(match_ctx, pw_config);