feat: create tuono_internal crate (#395)

crates/tuono_internal/src/config.rs

@@ -0,0 +1,24 @@
+use serde::Deserialize;
+use std::fs::read_to_string;
+use std::io;
+use std::path::PathBuf;
+
+#[derive(Deserialize)]
+pub struct ServerConfig {
+    pub host: String,
+    pub port: u16,
+}
+
+#[derive(Deserialize)]
+pub struct Config {
+    pub server: ServerConfig,
+}
+
+impl Config {
+    pub fn get() -> io::Result<Config> {
+        let config_file = read_to_string(PathBuf::from_iter([".tuono", "config", "config.json"]))?;
+
+        serde_json::from_str(&config_file)
+            .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))
+    }
+}

crates/tuono_internal/src/lib.rs

@@ -0,0 +1 @@
+pub mod config;