refactor: replace actors framework events boilerplate code with macros

Cargo.toml

@@ -194,6 +194,7 @@ pallet-storage-providers-runtime-api = { path = "pallets/providers/runtime-api",
 
 # Local - StorageHub Client (used by the node, can be std or no_std)
 shc-actors-framework = { path = "client/actors-framework", default-features = false }
+shc-actors-framework-macro = { path = "client/actors-framework-macro", default-features = false }
 shc-blockchain-service = { path = "client/blockchain-service", default-features = false }
 shc-file-transfer-service = { path = "client/file-transfer-service", default-features = false }
 shc-indexer-service = { path = "client/indexer-service", default-features = false }

client/actors-framework-macro/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "actors-framework-macro"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
+proc-macro2 = "1.0"
+quote = "1.0"
+syn = { version = "1.0", features = ["full"] }

client/actors-framework-macro/src/lib.rs

@@ -0,0 +1,17 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(EventBusMessage)]
+pub fn derive_event_bus_message(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+    let name = input.ident;
+
+    let expanded = quote! {
+        impl EventBusMessage for #name {}
+    };
+
+    TokenStream::from(expanded)
+}

client/actors-framework/Cargo.toml

@@ -24,4 +24,6 @@ sc-service = { workspace = true }
 sc-utils = { workspace = true }
 
 sp-core = { workspace = true }
-sp-runtime = { workspace = true }
+sp-runtime = { workspace = true }
+
+actors-framework-macro = { workspace = true }

client/actors-framework/src/event_bus.rs

@@ -107,3 +107,37 @@ impl<T: EventBusMessage, E: EventHandler<T> + Send + 'static> EventBusListener<T
         spawner.spawn(async move { self.run().await });
     }
 }
+
+#[macro_export]
+macro_rules! define_event_bus {
+    ($provider_name:ident, $($event_type:ty),+) => {
+        #[derive(Clone, Default)]
+        pub struct $provider_name {
+            $(pub $event_type: EventBus<$event_type>,)+
+        }
+
+        $(
+            impl ProvidesEventBus<$event_type> for $provider_name {
+                fn event_bus(&self) -> &EventBus<$event_type> {
+                    &self.$event_type
+                }
+            }
+        )+
+    };
+}
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(EventBusMessage)]
+pub fn derive_event_bus_message(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+    let name = input.ident;
+
+    let expanded = quote! {
+        impl EventBusMessage for #name {}
+    };
+
+    TokenStream::from(expanded)
+}

client/blockchain-service/Cargo.toml

@@ -67,3 +67,5 @@ pallet-proofs-dealer = { workspace = true }
 pallet-proofs-dealer-runtime-api = { workspace = true }
 pallet-storage-providers = { workspace = true }
 pallet-storage-providers-runtime-api = { workspace = true }
+
+actors-framework-macro = { workspace = true }