From 2a29f41aa8f7edfc68d464f13925a0e4a21da6b8 Mon Sep 17 00:00:00 2001
From: clawbot <clawbot@noreply.example.org>
Date: Sat, 7 Mar 2026 05:48:10 -0800
Subject: [PATCH] fix: bundle preact into SPA instead of leaving as external
 require

The esbuild config had --external:preact which told the bundler to leave
preact as a require() call instead of including it in the bundle. Since
the SPA loads app.js directly in the browser (no CDN or import map for
preact), the browser has no require() function and throws:

  Uncaught Error: Dynamic require of "preact" is not supported

Fix:
- Remove --external:preact from build.sh so preact is bundled into app.js
- Add --format=esm to output proper ESM instead of IIFE with CJS shims
- Update index.html to use <script type="module"> for ESM compatibility
- Remove the fallback build command (no longer needed)
- Rebuild dist/app.js with preact properly inlined

closes #48
---
 web/build.sh        | 12 ++----------
 web/dist/app.js     |  4 ++--
 web/dist/index.html |  2 +-
 web/src/index.html  |  2 +-
 4 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/web/build.sh b/web/build.sh
index 655225d..e799aac 100755
--- a/web/build.sh
+++ b/web/build.sh
@@ -16,19 +16,11 @@ fi
 
 mkdir -p dist
 
-# Build JS bundle
-${NPX:+$NPX} esbuild src/app.jsx \
-  --bundle \
-  --minify \
-  --jsx-factory=h \
-  --jsx-fragment=Fragment \
-  --define:process.env.NODE_ENV=\"production\" \
-  --external:preact \
-  --outfile=dist/app.js \
-  2>/dev/null || \
+# Build JS bundle — preact must be bundled (no CDN/external loader)
 ${NPX:+$NPX} esbuild src/app.jsx \
   --bundle \
   --minify \
+  --format=esm \
   --jsx-factory=h \
   --jsx-fragment=Fragment \
   --define:process.env.NODE_ENV=\"production\" \
diff --git a/web/dist/app.js b/web/dist/app.js
index 3205565..8ad82e7 100644
--- a/web/dist/app.js
+++ b/web/dist/app.js
@@ -1,2 +1,2 @@
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M("/messages",{method:"POST",body:JSON.stringify({command:"PART",to:o})})}catch{}_(l=>l.filter(f=>!(f.type==="channel"&&f.name===o))),u(0)},_t=o=>{let l=i[o];l.type==="channel"?we(l.name):l.type==="dm"&&(_(f=>f.filter((d,S)=>S!==o)),c>=o&&u(Math.max(0,c-1)))},Ce=o=>{_(f=>f.find(d=>d.type==="dm"&&d.name===o)?f:[...f,{type:"dm",name:o}]);let l=i.findIndex(f=>f.type==="dm"&&f.name===o);u(l>=0?l:i.length)},Te=async()=>{let o=T.trim();if(!o)return;g("");let l=i[c];if(!(!l||l.type==="server")){if(o.startsWith("/")){let f=o.split(" "),d=f[0].toLowerCase();if(d==="/join"&&f[1]){le(f[1]);return}if(d==="/part"){l.type==="channel"&&we(l.name);return}if(d==="/msg"&&f[1]&&f.slice(2).join(" ")){let S=f[1],x=f.slice(2).join(" ");try{await M("/messages",{method:"POST",body:JSON.stringify({command:"PRIVMSG",to:S,body:[x]})}),Ce(S)}catch(Y){W("Server",`DM failed: ${Y.data?.error||"error"}`)}return}if(d==="/nick"&&f[1]){try{await M("/messages",{method:"POST",body:JSON.stringify({command:"NICK",body:[f[1]]})})}catch(S){W("Server",`Nick change failed: ${S.data?.error||"error"}`)}return}if(d==="/topic"&&l.type==="channel"){let S=f.slice(1).join(" ");try{await M("/messages",{method:"POST",body:JSON.stringify({command:"TOPIC",to:l.name,body:[S]})})}catch(x){W("Server",`Topic failed: ${x.data?.error||"error"}`)}return}W("Server",`Unknown command: ${d}`);return}try{await M("/messages",{method:"POST",body:JSON.stringify({command:"PRIVMSG",to:l.name,body:[o]})})}catch(f){W(l.name,`Send failed: ${f.data?.error||"error"}`)}}};if(!e)return y(kt,{onLogin:rt});let j=i[c]||i[0],st=m[j.name]||[],Ie=v[j.name]||[],ue=p[j.name]||"";return y("div",{class:"app"},y("div",{class:"tab-bar"},!D&&y("div",{class:"connection-status"},"\u26A0 Reconnecting..."),i.map((o,l)=>y("div",{class:`tab ${l===c?"active":""}`,onClick:()=>u(l)},o.type==="dm"?`\u2192${o.name}`:o.name,w[o.name]>0&&l!==c&&y("span",{class:"unread-badge"},w[o.name]),o.type!=="server"&&y("span",{class:"close-btn",onClick:f=>{f.stopPropagation(),_t(l)}},"\xD7"))),y("div",{class:"join-dialog"},y("input",{placeholder:"#channel",value:b,onInput:o=>A(o.target.value),onKeyDown:o=>o.key==="Enter"&&le(b)}),y("button",{onClick:()=>le(b)},"Join"))),j.type==="channel"&&ue&&y("div",{class:"topic-bar",title:ue},ue),y("div",{class:"content"},y("div",{class:"messages-pane"},y("div",{class:j.type==="server"?"server-messages":"messages"},st.map(o=>y(St,{msg:o})),y("div",{ref:L})),j.type!=="server"&&y("div",{class:"input-bar"},y("input",{ref:Se,placeholder:`Message ${j.name}...`,value:T,onInput:o=>g(o.target.value),onKeyDown:o=>o.key==="Enter"&&Te()}),y("button",{onClick:Te},"Send"))),j.type==="channel"&&y("div",{class:"user-list"},y("h3",null,"Users (",Ie.length,")"),Ie.map(o=>y("div",{class:"user",onClick:()=>Ce(o.nick),style:{color:ot(o.nick)}},o.nick)))))}Je(y(wt,null),document.getElementById("root"));
diff --git a/web/dist/index.html b/web/dist/index.html
index 282793f..13cfc93 100644
--- a/web/dist/index.html
+++ b/web/dist/index.html
@@ -8,6 +8,6 @@
 </head>
 <body>
   <div id="root"></div>
-  <script src="/app.js"></script>
+  <script type="module" src="/app.js"></script>
 </body>
 </html>
diff --git a/web/src/index.html b/web/src/index.html
index 282793f..13cfc93 100644
--- a/web/src/index.html
+++ b/web/src/index.html
@@ -8,6 +8,6 @@
 </head>
 <body>
   <div id="root"></div>
-  <script src="/app.js"></script>
+  <script type="module" src="/app.js"></script>
 </body>
 </html>
-- 
2.49.1