update configuration management

Cargo.toml

@@ -82,6 +82,7 @@ crossbeam = { version = "0.8.4", features = ["crossbeam-channel"] }
 uuid = { version = "1.12.1", features = ["v4"] }
 etcetera = "0.8.0"
 tracing-appender = "0.2.3"
+confy = "0.6.1"
 
 [features]
 default = ["tui"]

src/cli/mod.rs

@@ -7,6 +7,7 @@ use ingestion::IngestionCommand;
 use miette::IntoDiagnostic;
 use sea_orm::prelude::async_trait::async_trait;
 use substance::SubstanceCommand;
+use std::path::PathBuf;
 
 use crate::core::CommandHandler;
 use crate::utils::AppContext;

src/core/config.rs

@@ -1,42 +1,67 @@
-use lazy_static::lazy_static;
+use serde::{Deserialize, Serialize};
+use std::env;
 use std::env::temp_dir;
-use std::path::Path;
 use std::path::PathBuf;
+use directories::ProjectDirs;
+use lazy_static::lazy_static;
+use crate::cli::Cli;
 
 pub const NAME: &str = env!("CARGO_PKG_NAME");
 pub const VERSION: &str = env!("CARGO_PKG_VERSION");
 
-lazy_static::lazy_static! {
-    pub static ref CONFIG: Config = Config::default();
-    /// Returns the path to the project's data directory.
-   pub static ref DATA_DIR: Box<Path> = directories::ProjectDirs::from("com", "keinsell", NAME).unwrap_or_else(|| panic!("project data directory not found")).data_dir().into();
-    /// Returns the path to the project's cache directory.
-  pub  static ref CACHE_DIR: Box<Path> = directories::ProjectDirs::from("com", "keinsell", NAME).unwrap_or_else(|| panic!("project data directory not found")).cache_dir().into();
-    /// Returns the path to the project's config directory.
-  pub   static ref CONFIG_DIR: Box<Path> = directories::ProjectDirs::from("com", "keinsell", NAME).unwrap_or_else(|| panic!("project data directory not found")).config_dir().into();
+lazy_static! {
+    pub static ref DATA_DIR: PathBuf = {
+        ProjectDirs::from("com", "keinsell", NAME)
+            .expect("project data directory not found")
+            .data_dir()
+            .to_path_buf()
+    };
+    pub static ref CACHE_DIR: PathBuf = {
+        ProjectDirs::from("com", "keinsell", NAME)
+            .expect("project cache directory not found")
+            .cache_dir()
+            .to_path_buf()
+    };
+    pub static ref CONFIG_DIR: PathBuf = {
+        ProjectDirs::from("com", "keinsell", NAME)
+            .expect("project config directory not found")
+            .config_dir()
+            .to_path_buf()
+    };
 }
 
-
-// TODO(NEU-1): Implement
-#[derive(Debug, Clone)]
-pub struct Config
-{
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct Config {
     pub sqlite_path: PathBuf,
+    pub version: Option<u32>,
 }
 
-impl Default for Config
-{
-    fn default() -> Self
-    {
-        let mut journal_path = DATA_DIR.join("journal.db").clone();
-
-        if cfg!(test) || cfg!(debug_assertions)
-        {
-            journal_path = temp_dir().join("neuronek.sqlite");
+impl Default for Config {
+    fn default() -> Self {
+        let default_db = if cfg!(test) || cfg!(debug_assertions) {
+            temp_dir().join("neuronek.sqlite")
+        } else {
+            DATA_DIR.join("journal.db")
+        };
+        Config {
+            sqlite_path: default_db,
+            version: Some(1),
         }
+    }
+}
 
-        Config {
-            sqlite_path: journal_path,
+impl Config {
+    pub fn load() -> Self {
+        // Load config from file; if not available, use default
+        let mut cfg: Config = confy::load(NAME, None).unwrap_or_default();
+
+        if let Ok(env_sqlite) = env::var("NEURONEK_SQLITE_PATH") {
+            cfg.sqlite_path = PathBuf::from(env_sqlite);
         }
+
+        // TODO: Add config schema migration
+
+        confy::store(NAME, None, &cfg).expect("Failed to store configuration");
+        cfg
     }
 }