From 9d0c0b3fb0570ef82f3d240ac5dd6d35c8b71b82 Mon Sep 17 00:00:00 2001
From: Erik Chou <kire5030@gmail.com>
Date: Tue, 24 Feb 2026 15:20:08 -0800
Subject: [PATCH] Add JsDos and Ruffle engine types

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 src/config.rs  | 60 +++++++++++++++++++++++++++++++++++++++++---------
 src/dev/mod.rs |  6 ++---
 2 files changed, 53 insertions(+), 13 deletions(-)

diff --git a/src/config.rs b/src/config.rs
index 21ff719..93d1c66 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -102,6 +102,18 @@ pub struct CustomSection {
     pub entrypoint: String,
 }
 
+#[derive(Debug, Deserialize)]
+pub struct JsDosSection {
+    pub version: String,
+    pub entrypoint: String,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct RuffleSection {
+    pub version: String,
+    pub entrypoint: String,
+}
+
 #[derive(Debug, Deserialize)]
 pub struct WavedashConfig {
     pub game_id: String,
@@ -116,6 +128,12 @@ pub struct WavedashConfig {
 
     #[serde(rename = "custom")]
     pub custom: Option<CustomSection>,
+
+    #[serde(rename = "jsdos")]
+    pub jsdos: Option<JsDosSection>,
+
+    #[serde(rename = "ruffle")]
+    pub ruffle: Option<RuffleSection>,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -123,6 +141,8 @@ pub enum EngineKind {
     Godot,
     Unity,
     Custom,
+    JsDos,
+    Ruffle,
 }
 
 impl EngineKind {
@@ -131,6 +151,8 @@ impl EngineKind {
             EngineKind::Godot => "godot",
             EngineKind::Unity => "unity",
             EngineKind::Custom => "custom",
+            EngineKind::JsDos => "jsdos",
+            EngineKind::Ruffle => "ruffle",
         }
     }
 
@@ -139,6 +161,8 @@ impl EngineKind {
             EngineKind::Godot => "GODOT",
             EngineKind::Unity => "UNITY",
             EngineKind::Custom => "CUSTOM",
+            EngineKind::JsDos => "JSDOS",
+            EngineKind::Ruffle => "RUFFLE",
         }
     }
 }
@@ -160,16 +184,24 @@ impl WavedashConfig {
     }
 
     pub fn engine_type(&self) -> Result<EngineKind> {
-        match (
-            self.godot.is_some(),
-            self.unity.is_some(),
-            self.custom.is_some(),
-        ) {
-            (true, false, false) => Ok(EngineKind::Godot),
-            (false, true, false) => Ok(EngineKind::Unity),
-            (false, false, true) => Ok(EngineKind::Custom),
+        let engines: Vec<EngineKind> = [
+            self.godot.is_some().then_some(EngineKind::Godot),
+            self.unity.is_some().then_some(EngineKind::Unity),
+            self.custom.is_some().then_some(EngineKind::Custom),
+            self.jsdos.is_some().then_some(EngineKind::JsDos),
+            self.ruffle.is_some().then_some(EngineKind::Ruffle),
+        ]
+        .into_iter()
+        .flatten()
+        .collect();
+
+        match engines.len() {
+            1 => Ok(engines[0]),
+            0 => anyhow::bail!(
+                "Config must have exactly one engine section: [godot], [unity], [custom], [jsdos], or [ruffle]"
+            ),
             _ => anyhow::bail!(
-                "Config must have exactly one of [godot], [unity], or [custom] sections"
+                "Config must have exactly one engine section: [godot], [unity], [custom], [jsdos], or [ruffle]"
             ),
         }
     }
@@ -181,12 +213,20 @@ impl WavedashConfig {
             Ok(&unity.version)
         } else if let Some(ref custom) = self.custom {
             Ok(&custom.version)
+        } else if let Some(ref jsdos) = self.jsdos {
+            Ok(&jsdos.version)
+        } else if let Some(ref ruffle) = self.ruffle {
+            Ok(&ruffle.version)
         } else {
             anyhow::bail!("No engine section found")
         }
     }
 
     pub fn entrypoint(&self) -> Option<&str> {
-        self.custom.as_ref().map(|c| c.entrypoint.as_str())
+        self.custom
+            .as_ref()
+            .map(|c| c.entrypoint.as_str())
+            .or_else(|| self.jsdos.as_ref().map(|j| j.entrypoint.as_str()))
+            .or_else(|| self.ruffle.as_ref().map(|r| r.entrypoint.as_str()))
     }
 }
diff --git a/src/dev/mod.rs b/src/dev/mod.rs
index f83aff5..5b5f5ba 100644
--- a/src/dev/mod.rs
+++ b/src/dev/mod.rs
@@ -63,11 +63,11 @@ pub async fn handle_dev(config_path: Option<PathBuf>, verbose: bool, no_open: bo
     let engine_kind = wavedash_config.engine_type()?;
     let engine_label = engine_kind.as_label();
 
-    let entrypoint = if matches!(engine_kind, EngineKind::Custom) {
+    let entrypoint = if matches!(engine_kind, EngineKind::Custom | EngineKind::JsDos | EngineKind::Ruffle) {
         Some(
             wavedash_config
                 .entrypoint()
-                .ok_or_else(|| anyhow::anyhow!("Custom engine configs require an entrypoint"))?
+                .ok_or_else(|| anyhow::anyhow!("Engine config requires an entrypoint"))?
                 .to_string(),
         )
     } else {
@@ -88,7 +88,7 @@ pub async fn handle_dev(config_path: Option<PathBuf>, verbose: bool, no_open: bo
             })?;
             Some(fetch_entrypoint_params(engine_label, html_path).await?)
         }
-        EngineKind::Custom => None,
+        EngineKind::Custom | EngineKind::JsDos | EngineKind::Ruffle => None,
     };
 
     let (rustls_config, cert_path, _key_path) = load_or_create_certificates().await?;