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use std::path::Path;
use serde::{Deserialize, Serialize};
use tokio::{fs::File, io::AsyncWriteExt};
use planetwars_rules::protocol::State;
use tokio::sync::mpsc;
#[derive(Serialize, Deserialize, Debug)]
#[serde(tag = "type")]
pub enum MatchLogMessage {
#[serde(rename = "gamestate")]
GameState(State),
#[serde(rename = "stderr")]
StdErr(StdErrMessage),
#[serde(rename = "bad_command")]
BadCommand {
player_id: u32,
command: String,
error: String,
},
}
#[derive(Serialize, Deserialize, Debug)]
pub struct StdErrMessage {
pub player_id: u32,
pub message: String,
}
pub type MatchLogger = mpsc::UnboundedSender<MatchLogMessage>;
pub async fn create_log_sink(log_file_path: &Path) -> MatchLogger {
let (tx, rx) = mpsc::unbounded_channel();
let log_file = File::create(log_file_path)
.await
.expect("Could not create log file");
tokio::spawn(run_log_sink(rx, log_file));
tx
}
async fn run_log_sink(mut rx: mpsc::UnboundedReceiver<MatchLogMessage>, mut file: File) {
while let Some(message) = rx.recv().await {
let json = serde_json::to_string(&message).expect("failed to serialize message");
file.write_all(json.as_bytes())
.await
.expect("failed to write log message to file");
file.write_all(b"\n")
.await
.expect("failed to write newline log message to file");
}
}
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