Config save and load start

src/server/domain.rs

@@ -1,7 +1,9 @@
 use std::{ops::RangeInclusive, path::PathBuf, str::FromStr};
 
+use serde::{Deserialize, Serialize};
+use serde_json::json;
 use tokio::{
-    fs::{File, create_dir},
+    fs::{File, create_dir, read, read_dir},
     io::{self, AsyncWriteExt},
     sync::{RwLock, watch},
 };
@@ -9,21 +11,23 @@ use tokio_stream::wrappers::BroadcastStream;
 use uuid::Uuid;
 
 use crate::{
-    config::{MinecraftType, MinecraftVersion, StreamSource, Version, stream::InstanceEvent},
+    config::{self, MinecraftType, MinecraftVersion, StreamSource, Version, stream::InstanceEvent},
     error::{CreationError, ServerError, SubscribeError},
     instance::InstanceHandle,
     manifests::vanilla::{VanillaManifestV2, VanillaManifestV2Version, VanillaReleaseManifest},
     server,
 };
 
+#[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct MineGuardConfig {
     uuid: Uuid,
-    server_dir: PathBuf,
-    jar_path: PathBuf,
-    mc_version: MinecraftVersion,
-    mc_type: MinecraftType,
+    pub server_dir: PathBuf,
+    pub jar_path: PathBuf,
+    pub mc_version: MinecraftVersion,
+    pub mc_type: MinecraftType,
 }
 
+#[derive(Debug)]
 pub struct MineGuardServer {
     pub handle: RwLock<InstanceHandle>,
     pub config: RwLock<MineGuardConfig>,
@@ -42,6 +46,15 @@ impl MineGuardConfig {
 }
 
 impl MineGuardServer {
+    async fn load_cfg_handle(
+        config: MineGuardConfig,
+        handle: InstanceHandle,
+    ) -> Result<Self, CreationError> {
+        Ok(Self {
+            config: RwLock::new(config),
+            handle: RwLock::new(handle),
+        })
+    }
     pub async fn create(
         mc_version: MinecraftVersion,
         mc_type: MinecraftType,
@@ -62,6 +75,11 @@ impl MineGuardServer {
             .await
             .map_err(|_| CreationError::DirectoryError)?;
 
+        let internal_dir = server_root.join(".mineguard");
+        create_dir(internal_dir)
+            .await
+            .map_err(|_| CreationError::DirectoryError)?;
+
         let mut url = String::new();
 
         if mc_type == MinecraftType::Vanilla {
@@ -162,4 +180,69 @@ impl MineGuardServer {
 
         Ok(())
     }
+
+    pub async fn write_config(&self) -> Result<(), ServerError> {
+        let config_r = self.config.read().await;
+        let root_path = config_r.server_dir.clone();
+        let config_clone = config_r.clone();
+        drop(config_r);
+
+        let config_path = root_path.join(".mineguard/config.json");
+
+        let json = serde_json::to_vec_pretty(&config_clone).map_err(|_| ServerError::FileIO)?;
+
+        File::create(config_path)
+            .await
+            .map_err(|_| ServerError::FileIO)?
+            .write_all(&json)
+            .await
+            .map_err(|_| ServerError::FileIO)?;
+
+        Ok(())
+    }
+
+    pub async fn load(path: &PathBuf) -> Result<Self, CreationError> {
+        let config_path = path.join(".mineguard/config.json");
+
+        let data = read(config_path)
+            .await
+            .map_err(|_| CreationError::DirectoryError)?;
+
+        let config: MineGuardConfig =
+            serde_json::from_slice(&data).map_err(|_| CreationError::CreationError)?;
+        let handle = InstanceHandle::new_with_config(config.clone())
+            .map_err(|_| CreationError::CreationError)?;
+
+        MineGuardServer::load_cfg_handle(config, handle).await
+    }
+
+    pub async fn load_all(path: PathBuf) -> Result<Vec<Self>, CreationError> {
+        let mut dirs = Vec::new();
+        let mut entries = read_dir(path)
+            .await
+            .map_err(|_| CreationError::DirectoryError)?;
+
+        while let Some(entry) = entries
+            .next_entry()
+            .await
+            .map_err(|_| CreationError::DirectoryError)?
+        {
+            let meta = entry
+                .metadata()
+                .await
+                .map_err(|_| CreationError::DirectoryError)?;
+            if meta.is_dir() {
+                dirs.push(entry.path());
+            }
+        }
+
+        let mut servers: Vec<Self> = Vec::new();
+
+        for v in dirs {
+            println!("{}", v.to_str().unwrap());
+            servers.push(Self::load(&v).await?);
+        }
+
+        Ok(servers)
+    }
 }