feat: support for 'ironvar' dynamic variables

src/ipc/commands.rs

@@ -10,5 +10,21 @@ pub enum Command {
 
     /// Open the GTK inspector
     Inspect,
-}
 
+    /// Set an `ironvar` value.
+    /// This creates it if it does not already exist, and updates it if it does.
+    /// Any references to this variable are automatically and immediately updated.
+    /// Keys and values can be any valid UTF-8 string.
+    Set {
+        /// Variable key. Can be any valid UTF-8 string.
+        key: Box<str>,
+        /// Variable value. Can be any valid UTF-8 string.
+        value: String,
+    },
+
+    /// Get the current value of an `ironvar`.
+    Get {
+        /// Variable key.
+        key: Box<str>,
+    },
+}

src/ipc/responses.rs

@@ -4,6 +4,7 @@ use serde::{Deserialize, Serialize};
 #[serde(tag = "type")]
 pub enum Response {
     Ok,
+    OkValue { value: String },
     Err { message: Option<String> },
 }
 

src/ipc/server.rs

@@ -106,6 +106,22 @@ impl Ipc {
             Command::Inspect => {
                 gtk::Window::set_interactive_debugging(true);
                 Response::Ok
+            },
+            Command::Set { key, value } => {
+                let variable_manager = get_variable_manager();
+                let mut variable_manager = write_lock!(variable_manager);
+                match variable_manager.set(key, value) {
+                    Ok(_) => Response::Ok,
+                    Err(err) => Response::error(&format!("{err}")),
+                }
+            }
+            Command::Get { key } => {
+                let variable_manager = get_variable_manager();
+                let value = read_lock!(variable_manager).get(&key);
+                match value {
+                    Some(value) => Response::OkValue { value },
+                    None => Response::error("Variable not found"),
+                }
             }
             Command::Ping => Response::Ok,
         }