hmr fixes

allow page refresh, add keep-alive ping

example/deno.jsonc

@@ -3,8 +3,6 @@
     "imports":
     {
         "react": "https://esm.sh/stable/preact@10.13.2/compat",
-        "preact": "https://esm.sh/stable/preact@10.13.2/",
-        "@deep/": "./deep/",
         "@eno/app": "./app.tsx",
         "@eno/iso": "http://localhost:4507/lib/iso.tsx"
     },

lib/hmr.tsx

@@ -1,7 +1,8 @@
 
 let reloads = 0;
 const listeners = new Map() as Map<string, Array<(module:unknown)=>void>>;
-new WebSocket("ws://"+document.location.host).addEventListener('message', (event) =>
+const socket:WebSocket = new WebSocket("ws://"+document.location.host);
+socket.addEventListener('message', (event) =>
 {
     let handlers = listeners.get(event.data)??[];
     reloads++;
@@ -13,6 +14,7 @@ new WebSocket("ws://"+document.location.host).addEventListener('message', (event
         })
     ).then(()=>HMR.update());
 });
+const socketTimer = setInterval(()=>{socket.send("ping")}, 1000);
 
 export const FileListen =(inPath:string, inHandler:()=>void)=>
 {

server.tsx

@@ -89,6 +89,7 @@ function Transpiler(inDevMode:boolean)
     :
     ()=>false;
 
+    let reloads = 0;
     const watcher =async()=>
     {
         const FilesChanged:Map<string, string> = new Map();
@@ -99,6 +100,13 @@ function Transpiler(inDevMode:boolean)
                 const key = path.substring(Deno.cwd().length).replaceAll("\\", "/");
                 if(action != "remove")
                 {
+                    if(Imports?.imports)
+                    {
+                        reloads++;
+                        const importApp = Imports.imports["@eno/app"];
+                        const imp = await import(Path.Active+importApp+"?reloads="+reloads);
+                        App = imp.default;
+                    }
                     await TranspileURL(Path.Active+key, key, false);
                     SocketsBroadcast(key);
                 }
@@ -294,7 +302,8 @@ console.log(`Dev Mode: ${DevMode}`);
 console.log(`Args seen: `, Flags);
 
 const {Transpileable, TranspileURL, SocketsHandler} = Transpiler(DevMode);
-const {Imports, App, TwindInst, Error} = await Configure(DevMode, Path.LibDir);
+let {Imports, App, TwindInst, Error} = await Configure(DevMode, Path.LibDir);
+
 if(Error)
 {
     console.log(Error);