refactor: rename rpc to activity

src/activity/mod.rs

@@ -0,0 +1,2 @@
+pub mod presence;
+pub mod types;

src/activity/types.rs

@@ -0,0 +1,42 @@
+use crate::json::parser::Deserializable;
+
+pub struct Packet {
+    pub pid: u32,
+    pub activity: Option<Activity>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+pub struct Activity {
+    pub details: Option<String>,
+    pub state: Option<String>,
+    pub large_image: Option<String>,
+    pub large_text: Option<String>,
+    pub small_image: Option<String>,
+    pub small_text: Option<String>,
+    pub buttons: Option<Vec<ActivityButton>>,
+    pub timestamp: Option<u128>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct ActivityButton {
+    pub label: String,
+    pub url: String,
+}
+
+impl Deserializable for ActivityButton {
+    fn deserialize(
+        input: &std::collections::HashMap<String, crate::json::parser::Value>,
+    ) -> Result<Self, String> {
+        let label = input
+            .get("label")
+            .and_then(|v| v.as_str())
+            .ok_or("Missing or invalid 'label' field")?
+            .to_string();
+        let url = input
+            .get("url")
+            .and_then(|v| v.as_str())
+            .ok_or("Missing or invalid 'url' field")?
+            .to_string();
+        Ok(ActivityButton { label, url })
+    }
+}