1 files changed, 44 insertions, 0 deletions
diff --git a/src/configuration.rs b/src/configuration.rs
new file mode 100644
index 0000000..f74d96f
--- /dev/null
+++ b/src/configuration.rs
@@ -0,0 +1,44 @@
+use lexopt::{Parser, prelude::*};
+
+const DEFAULT_ADDRESS: &str = "127.0.0.1:5500";
+
+#[derive(Clone)]
+pub struct Configuration {
+    pub address: String,
+}
+
+impl Default for Configuration {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl Configuration {
+    #[must_use]
+    pub fn new() -> Self {
+        let mut address = DEFAULT_ADDRESS.to_string();
+
+        let mut parser = Parser::from_env();
+
+        while let Ok(Some(argument)) = parser.next() {
+            match argument {
+                Short('l') | Long("listen-address") => {
+                    if let Ok(value) = parser.value().and_then(|v| v.parse()) {
+                        address = value;
+                    } else {
+                        eprintln!("Warning: Invalid listen address ignored.");
+                    }
+                }
+                Long("help") => {
+                    println!("Usage: linea-caliente [-l|--listen-address=LISTEN_ADDRESS]");
+                    std::process::exit(0);
+                }
+                _ => {
+                    eprintln!("Warning: Unknown argument ignored");
+                }
+            }
+        }
+
+        Configuration { address }
+    }
+}