Cargo.lock

@@ -1745,10 +1745,14 @@ version = "0.1.0"
 dependencies = [
  "byteorder",
  "crc32fast",
+ "prettyplease",
  "prost",
  "prost-build",
  "quote",
+ "serde",
+ "serde_json",
  "shorekeeper-protocol-derive",
+ "syn",
  "thiserror",
 ]
 

shorekeeper-protocol/Cargo.toml

@@ -8,8 +8,12 @@ byteorder.workspace = true
 crc32fast.workspace = true
 thiserror.workspace = true
 prost.workspace = true
+serde.workspace = true
+serde_json.workspace = true
 shorekeeper-protocol-derive.workspace = true
 
 [build-dependencies]
 prost-build.workspace = true
 quote = "1.0.35"
+syn = "2.0.76"
+prettyplease = "0.2.22"

shorekeeper-protocol/build.rs

@@ -3,8 +3,9 @@ use std::{
     io::{self, BufRead},
     path::Path,
 };
+use std::io::Write;
 
-use quote::quote;
+use quote::{format_ident, quote};
 
 const CODEGEN_OUT_DIR: &str = "generated/";
 
@@ -26,9 +27,11 @@ pub fn main() {
         prost_build::Config::new()
             .out_dir(CODEGEN_OUT_DIR)
             .type_attribute(".", "#[derive(shorekeeper_protocol_derive::MessageID)]")
+            .type_attribute(".", "#[derive(serde::Serialize,serde::Deserialize)]")
             .compile_protos(&[proto_file], &["shorekeeper"])
             .unwrap();
 
+        impl_dumper(Path::new("generated/shorekeeper.rs")).unwrap();
         impl_message_id(Path::new("generated/shorekeeper.rs")).unwrap();
     }
 
@@ -92,10 +95,11 @@ pub fn impl_proto_config(csv_path: &Path, codegen_path: &Path) -> io::Result<()>
                 }
             }
         }
-    }
+    };
-    .to_string();
 
-    fs::write(codegen_path, generated_code.as_bytes())?;
+    let syntax_tree = syn::parse2(generated_code).unwrap();
+    let formatted = prettyplease::unparse(&syntax_tree);
+    fs::write(codegen_path, formatted.as_bytes())?;
     Ok(())
 }
 
@@ -126,3 +130,54 @@ fn make_message_id_attr(line: &str) -> Option<String> {
     let id = line.trim_start().split(' ').nth(2)?.parse::<u16>().ok()?;
     Some(format!("#[message_id({id})]"))
 }
+
+pub fn impl_dumper(codegen_path: &Path) -> io::Result<()> {
+    let file = fs::File::open(codegen_path)?;
+    let reader = io::BufReader::new(file);
+    let mut match_arms = quote! {};
+
+    let mut id = None;
+    for line in reader.lines() {
+        let line = line?;
+
+        if line.contains("MessageId:") {
+            id = Some(
+                line.trim_start().split(' ').nth(2).unwrap().parse::<u16>().ok().unwrap()
+            );
+        } else if line.contains("pub struct") {
+            if let Some(id) = id.take() {
+                let name = format_ident!(
+                    "{}", line.trim_start().split(' ').nth(2).unwrap().to_string()
+                );
+                match_arms = quote! {
+                    #match_arms
+                    #id => serde_json::to_string(&#name::decode(data).unwrap()),
+                };
+            }
+        }
+    }
+
+    let generated_code = quote! {
+        pub mod proto_dumper {
+            use prost::Message;
+            use crate::*;
+            use crate::ai::*;
+            use crate::combat_message::*;
+            use crate::debug::*;
+            use crate::summon::*;
+
+            pub fn get_debug_info(id: u16, data: &[u8]) -> String {
+                match id {
+                    #match_arms
+                    _ => Ok("".to_string()),
+                }.unwrap()
+            }
+        }
+    };
+
+    let syntax_tree = syn::parse2(generated_code).unwrap();
+    let formatted = prettyplease::unparse(&syntax_tree);
+    let mut file = fs::OpenOptions::new().append(true).open(codegen_path)?;
+    file.write(formatted.as_bytes())?;
+    Ok(())
+}