Wrap Client internals in Arc for cheap cloning

src/client.rs

@@ -2,6 +2,7 @@
 
 use crate::apis::{AlbumsApi, AssetsApi, ServerApi, TimelineApi};
 use crate::error::{ImmichError, Result};
+use std::sync::Arc;
 use std::time::Duration;
 
 /// Configuration for the Immich client
@@ -56,13 +57,22 @@ impl Config {
     }
 }
 
-/// Client for making requests to the Immich API
-#[derive(Debug, Clone)]
-pub struct Client {
+/// Internal client data wrapped in Arc for cheap cloning
+#[derive(Debug)]
+struct ClientInner {
     config: Config,
     http: reqwest::Client,
 }
 
+/// Client for making requests to the Immich API
+///
+/// This struct is cheap to clone - it uses an internal Arc to share the underlying
+/// HTTP client and configuration.
+#[derive(Debug, Clone)]
+pub struct Client {
+    inner: Arc<ClientInner>,
+}
+
 impl Client {
     /// Create a new client with the given configuration
     pub fn new(config: Config) -> Result<Self> {
@@ -86,8 +96,10 @@ impl Client {
             .build()?;
 
         Ok(Self {
-            config: Config { base_url, ..config },
-            http,
+            inner: Arc::new(ClientInner {
+                config: Config { base_url, ..config },
+                http,
+            }),
         })
     }
 
@@ -97,38 +109,46 @@ impl Client {
     }
 
     /// Set the API key
-    pub fn with_api_key(mut self, api_key: impl Into<String>) -> Self {
-        self.config.api_key = Some(api_key.into());
-        self
+    pub fn with_api_key(self, api_key: impl Into<String>) -> Self {
+        // We need to create a new ClientInner since we can't modify Arc contents
+        let mut config = self.inner.config.clone();
+        config.api_key = Some(api_key.into());
+
+        Self {
+            inner: Arc::new(ClientInner {
+                config,
+                http: self.inner.http.clone(),
+            }),
+        }
     }
 
     /// Get the configuration
     pub fn config(&self) -> &Config {
-        &self.config
+        &self.inner.config
     }
 
     /// Get the base URL
     pub fn base_url(&self) -> &str {
-        &self.config.base_url
+        &self.inner.config.base_url
     }
 
     /// Check if the client has an API key configured
     pub fn has_api_key(&self) -> bool {
-        self.config.api_key.is_some()
+        self.inner.config.api_key.is_some()
     }
 
     /// Get the underlying HTTP client
     pub fn http(&self) -> &reqwest::Client {
-        &self.http
+        &self.inner.http
     }
 
     /// Create an authenticated request builder
     pub fn request(&self, method: reqwest::Method, path: &str) -> reqwest::RequestBuilder {
-        let url = format!("{}/api{}", self.config.base_url, path);
-        let mut builder = self.http.request(method, &url);
+        let url = format!("{}/api{}", self.inner.config.base_url, path);
+        let mut builder = self.inner.http.request(method, &url);
 
         // Add API key authentication
-        if let Some(ref api_key) = self.config.api_key {
+        if let Some(ref api_key) = self.inner.config.api_key {
             builder = builder.header("x-api-key", api_key);
         }
 
@@ -137,7 +157,7 @@ impl Client {
 
     /// Execute a request and handle common error cases
     pub async fn execute(&self, request: reqwest::Request) -> Result<reqwest::Response> {
-        let response = self.http.execute(request).await?;
+        let response = self.inner.http.execute(request).await?;
 
         if response.status().is_success() {
             Ok(response)