From e64a144620d2aa02daf10b066ce02382f15c2fbb Mon Sep 17 00:00:00 2001
From: Jacob Babich <jacob@katniss.top>
Date: Sun, 21 Jan 2024 00:45:33 -0500
Subject: [PATCH] meta: initial commit

---
 .gitignore  |   1 +
 Cargo.lock  | 342 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |  10 ++
 src/main.rs | 111 +++++++++++++++++
 4 files changed, 464 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..28dc4c3
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,342 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
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+dependencies = [
+ "gimli",
+]
+
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+
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+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "event-listener-strategy",
+ "futures-core",
+ "pin-project-lite",
+]
+
+[[package]]
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+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
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+ "libc",
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+ "pin-project-lite",
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+[[package]]
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+ "windows-sys",
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+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
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+[[package]]
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+[[package]]
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..b089671
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "minecraft-frequent-saver"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+async-channel = "2.1.1"
+tokio = { version = "1.35.1", features = ["rt-multi-thread", "process", "macros", "time"] }
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..b388652
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,111 @@
+use std::{ffi::OsStr, time::Duration};
+
+use tokio::{process::Command, time::sleep};
+
+enum SaveMessage {
+    SoftSave,
+    HardSave,
+}
+
+async fn produce_soft_saves(tx: async_channel::Sender<SaveMessage>) {
+    let secs = 60;
+
+    let duration = Duration::from_secs(secs);
+    let mut interval = tokio::time::interval(duration);
+
+    loop {
+        interval.tick().await;
+
+        tx.send(SaveMessage::SoftSave).await.unwrap();
+    }
+}
+
+async fn produce_hard_saves(tx: async_channel::Sender<SaveMessage>) {
+    let secs = 240;
+
+    let duration = Duration::from_secs(secs);
+    let mut interval = tokio::time::interval(duration);
+
+    loop {
+        interval.tick().await;
+
+        tx.send(SaveMessage::HardSave).await.unwrap();
+    }
+}
+
+async fn consume_scheduled_saves(rx: async_channel::Receiver<SaveMessage>) {
+    while let Ok(msg) = rx.recv().await {
+        match msg {
+            SaveMessage::SoftSave => {
+                do_soft_save_with_announcement().await;
+            }
+            SaveMessage::HardSave => {
+                do_hard_save_with_announcement().await;
+            }
+        }
+    }
+}
+
+async fn run_rcon_command<I, S: AsRef<OsStr>>(command: I)
+where
+    I: IntoIterator<Item = S>,
+{
+    Command::new("docker")
+        .current_dir("/home/jacob/docker/stacks/minecraft")
+        .args(["compose", "exec", "-it", "atm9nf-server", "rcon-cli"])
+        .args(command)
+        .spawn()
+        .unwrap()
+        .wait()
+        .await
+        .unwrap();
+}
+
+async fn do_soft_save_with_announcement() {
+    run_rcon_command([
+        "say",
+        "Soft saving now. No need to interrupt what you're doing.",
+    ])
+    .await;
+
+    run_rcon_command(["save-all"]).await;
+}
+
+async fn do_hard_save_with_announcement() {
+    let ten_seconds = Duration::from_secs(10);
+    let duration = ten_seconds;
+    let delay = tokio::spawn(sleep(duration));
+
+    run_rcon_command([
+        "say",
+        "Hard saving in 10 seconds. Get to safety and pause your activities.",
+    ])
+    .await;
+
+    run_rcon_command(["save-all"]).await;
+
+    delay.await.unwrap();
+
+    run_rcon_command(["save-all", "flush"]).await;
+
+    run_rcon_command([
+        "say",
+        "The hard save has been completed. We do this to lower crash risks. Thanks.",
+    ])
+    .await;
+}
+
+#[tokio::main]
+async fn main() {
+    let (tx, rx) = async_channel::bounded(8);
+
+    let soft_save_producer = tokio::spawn(produce_soft_saves(tx.clone()));
+    let hard_save_producer = tokio::spawn(produce_hard_saves(tx));
+
+    let consumer = tokio::spawn(consume_scheduled_saves(rx));
+
+    soft_save_producer.await.unwrap();
+    hard_save_producer.await.unwrap();
+
+    consumer.await.unwrap();
+}