Refactor Java runtime to async modular system with Adoptium support (#82)

1 files changed, 114 insertions, 0 deletions

diff --git a/src-tauri/src/core/java/persistence.rs b/src-tauri/src/core/java/persistence.rs
new file mode 100644
index 0000000..fd81394
--- /dev/null
+++ b/src-tauri/src/core/java/persistence.rs
@@ -0,0 +1,114 @@
+use serde::{Deserialize, Serialize};
+use std::path::PathBuf;
+use tauri::{AppHandle, Manager};
+
+use super::error::JavaError;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct JavaConfig {
+    pub user_defined_paths: Vec<String>,
+    pub preferred_java_path: Option<String>,
+    pub last_detection_time: u64,
+}
+
+impl Default for JavaConfig {
+    fn default() -> Self {
+        Self {
+            user_defined_paths: Vec::new(),
+            preferred_java_path: None,
+            last_detection_time: 0,
+        }
+    }
+}
+
+fn get_java_config_path(app_handle: &AppHandle) -> PathBuf {
+    app_handle
+        .path()
+        .app_data_dir()
+        .unwrap()
+        .join("java_config.json")
+}
+
+pub fn load_java_config(app_handle: &AppHandle) -> JavaConfig {
+    let config_path = get_java_config_path(app_handle);
+    if !config_path.exists() {
+        return JavaConfig::default();
+    }
+
+    match std::fs::read_to_string(&config_path) {
+        Ok(content) => match serde_json::from_str(&content) {
+            Ok(config) => config,
+            Err(err) => {
+                // Log the error but don't panic - return default config
+                log::warn!(
+                    "Failed to parse Java config at {}: {}. Using default configuration.",
+                    config_path.display(),
+                    err
+                );
+                JavaConfig::default()
+            }
+        },
+        Err(err) => {
+            log::warn!(
+                "Failed to read Java config at {}: {}. Using default configuration.",
+                config_path.display(),
+                err
+            );
+            JavaConfig::default()
+        }
+    }
+}
+
+pub fn save_java_config(app_handle: &AppHandle, config: &JavaConfig) -> Result<(), JavaError> {
+    let config_path = get_java_config_path(app_handle);
+    let content = serde_json::to_string_pretty(config)?;
+
+    std::fs::create_dir_all(config_path.parent().ok_or_else(|| {
+        JavaError::InvalidConfig("Java config path has no parent directory".to_string())
+    })?)?;
+
+    std::fs::write(&config_path, content)?;
+    Ok(())
+}
+
+#[allow(dead_code)]
+pub fn add_user_defined_path(app_handle: &AppHandle, path: String) -> Result<(), JavaError> {
+    let mut config = load_java_config(app_handle);
+    if !config.user_defined_paths.contains(&path) {
+        config.user_defined_paths.push(path);
+    }
+    save_java_config(app_handle, &config)
+}
+
+#[allow(dead_code)]
+pub fn remove_user_defined_path(app_handle: &AppHandle, path: &str) -> Result<(), JavaError> {
+    let mut config = load_java_config(app_handle);
+    config.user_defined_paths.retain(|p| p != path);
+    save_java_config(app_handle, &config)
+}
+
+#[allow(dead_code)]
+pub fn set_preferred_java_path(
+    app_handle: &AppHandle,
+    path: Option<String>,
+) -> Result<(), JavaError> {
+    let mut config = load_java_config(app_handle);
+    config.preferred_java_path = path;
+    save_java_config(app_handle, &config)
+}
+
+#[allow(dead_code)]
+pub fn get_preferred_java_path(app_handle: &AppHandle) -> Option<String> {
+    let config = load_java_config(app_handle);
+    config.preferred_java_path
+}
+
+#[allow(dead_code)]
+pub fn update_last_detection_time(app_handle: &AppHandle) -> Result<(), JavaError> {
+    let mut config = load_java_config(app_handle);
+    config.last_detection_time = std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .map_err(|e| JavaError::Other(format!("System time error: {}", e)))?
+        .as_secs();
+    save_java_config(app_handle, &config)
+}