feat(activitypub-base): LikeActivity struct + on_like/on_announce_received trait methods

crates/adapters/activitypub-base/src/activities.rs

@@ -13,6 +13,16 @@ use url::Url;
 #[serde(rename = "Announce")]
 pub struct AnnounceType;
 
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename = "Like")]
+pub struct LikeType;
+
+impl Default for LikeType {
+    fn default() -> Self {
+        Self
+    }
+}
+
 use crate::actors::DbActor;
 use crate::data::FederationData;
 use crate::error::Error;
@@ -511,6 +521,18 @@ impl Activity for AnnounceActivity {
     }
 }
 
+// --- Like ---
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct LikeActivity {
+    pub id: Url,
+    #[serde(rename = "type")]
+    pub kind: LikeType,
+    pub actor: ObjectId<DbActor>,
+    pub object: Url,
+}
+
 // --- Add ---
 
 #[derive(Clone, Default, Debug, Serialize, Deserialize)]