From bba94e244c2dacaaeb1c4a7f4c6f6c29c9364e05 Mon Sep 17 00:00:00 2001
From: Klesti Selimaj <klesti.selimay@icloud.com>
Date: Fri, 24 Jul 2026 16:36:44 +0200
Subject: [PATCH] Config

---
 Cargo.lock           | 32 ++++++++++++++++++++++++++
 Cargo.toml           |  2 ++
 src/engine/config.rs | 54 ++++++++++++++++++++++++++++++++++++++++++++
 src/engine/main.rs   |  1 +
 4 files changed, 89 insertions(+)
 create mode 100644 src/engine/config.rs

diff --git a/Cargo.lock b/Cargo.lock
index a60d9a7..fc34e9b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3888,8 +3888,10 @@ dependencies = [
  "pulse-ui",
  "pulse-wire",
  "rand 0.8.7",
+ "serde",
  "serde_json",
  "tokio",
+ "toml",
 ]
 
 [[package]]
@@ -4729,6 +4731,15 @@ dependencies = [
  "zmij",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6662b5879511e06e8999a8a235d848113e942c9124f211511b16466ee2995f26"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.1"
@@ -5240,6 +5251,21 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "toml"
+version = "1.1.3+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53c96ecdfa941c8fc4fcaed14f99ada8ebed502eef533015095a07e3301d4c3c"
+dependencies = [
+ "indexmap 2.14.0",
+ "serde_core",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_parser",
+ "toml_writer",
+ "winnow",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "1.1.1+spec-1.1.0"
@@ -5270,6 +5296,12 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "toml_writer"
+version = "1.1.2+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d56353a2a665ad0f41a421187180aab746c8c325620617ad883a99a1cbe66d2"
+
 [[package]]
 name = "tonic"
 version = "0.14.6"
diff --git a/Cargo.toml b/Cargo.toml
index 22ba238..f70095e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,6 +20,8 @@ crossterm = { workspace = true }
 hypersdk = "0.2.14"
 serde_json = "1"
 rand = "0.8.7"
+toml = "1.1.3"
+serde = { version = "1.0.229", features = ["serde_derive"] }
 
 [workspace]
 members = ["pulse-macros", "pulse-ui", "pulse-wire"]
diff --git a/src/engine/config.rs b/src/engine/config.rs
new file mode 100644
index 0000000..3380131
--- /dev/null
+++ b/src/engine/config.rs
@@ -0,0 +1,54 @@
+use std::path::PathBuf;
+
+pub fn home_dir() -> tokio::io::Result<PathBuf> {
+    std::env::home_dir().ok_or_else(|| {
+        tokio::io::Error::new(std::io::ErrorKind::NotFound, "Unable to get home directory")
+    })
+}
+
+pub fn pulse_directory() -> tokio::io::Result<PathBuf> {
+    Ok(home_dir()?.join(".config/pulse-trader"))
+}
+
+pub fn pulse_config_directory() -> tokio::io::Result<PathBuf> {
+    Ok(home_dir()?.join(".config/pulse-trader/config.toml"))
+}
+
+#[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
+pub struct WatchList {
+    symbols: Vec<String>,
+}
+
+#[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
+pub struct Config {
+    watchlist: WatchList,
+}
+
+impl Config {
+    pub async fn new() -> tokio::io::Result<Self> {
+        let path = pulse_config_directory()?;
+
+        if !path.exists() {
+            let default = Self::default();
+
+            tokio::fs::create_dir_all(path.parent().unwrap()).await?;
+            tokio::fs::write(&path, default.to_string()?).await?;
+
+            return Ok(default);
+        }
+
+        let output = tokio::fs::read_to_string(path).await?;
+
+        Self::from_str(&output)
+    }
+
+    pub fn from_str(s: &str) -> tokio::io::Result<Self> {
+        toml::from_str(s)
+            .map_err(|v| tokio::io::Error::new(std::io::ErrorKind::InvalidInput, v.to_string()))
+    }
+
+    pub fn to_string(&self) -> tokio::io::Result<String> {
+        toml::to_string(self)
+            .map_err(|v| tokio::io::Error::new(std::io::ErrorKind::Other, v.to_string()))
+    }
+}
diff --git a/src/engine/main.rs b/src/engine/main.rs
index bb7f06f..b1a7454 100644
--- a/src/engine/main.rs
+++ b/src/engine/main.rs
@@ -1,3 +1,4 @@
+pub mod config;
 pub mod engine;
 pub mod fetch;
 pub mod terminal;