refactor(instagram): organize files

src/handlers/mod.rs

@@ -0,0 +1,28 @@
+mod instagram;
+
+use crate::error::Result;
+use teloxide::{Bot, types::ChatId};
+
+#[async_trait::async_trait]
+pub trait SocialHandler: Send + Sync {
+    /// Short name used for logging etc.
+    fn name(&self) -> &'static str;
+
+    /// Try to extract a platform-specific identifier (shortcode, id, url)
+    /// from arbitrary text. Return `Some` if the handler should handle this message.
+    fn try_extract(&self, text: &str) -> Option<String>;
+
+    /// Do the heavy-lifting: fetch media and send to `chat_id`.
+    async fn handle(&self, bot: &Bot, chat_id: ChatId, id: String) -> Result<()>;
+
+    /// Clone a boxed handler.
+    fn box_clone(&self) -> Box<dyn SocialHandler>;
+}
+
+impl Clone for Box<dyn SocialHandler> {
+    fn clone(&self) -> Self {
+        self.box_clone()
+    }
+}
+
+pub use instagram::InstagramHandler;