From c490c1e77f54eb3dfdc65e991a4019fa41cf1486 Mon Sep 17 00:00:00 2001
From: Meta Vens <rwvens@hotmail.com>
Date: Mon, 13 Jul 2026 17:28:21 +0100
Subject: [PATCH] Reconcile controls from provider receipts

---
 packages/eve-browser-lowering/dist/index.js |  1 +
 packages/eve-browser-lowering/src/index.ts  |  1 +
 web/surface.js                              | 31 ++++++++++++++++++++-
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/packages/eve-browser-lowering/dist/index.js b/packages/eve-browser-lowering/dist/index.js
index 114989a..588735f 100644
--- a/packages/eve-browser-lowering/dist/index.js
+++ b/packages/eve-browser-lowering/dist/index.js
@@ -1307,6 +1307,7 @@ function renderSlider(props, children, options) {
     const max = Number(props.max ?? 1);
     const slider = el("div", "cultui-slider");
     slider.dataset.skin = stringProp(props.skin, "default");
+    slider.dataset.bind = stringProp(props.bind, "");
     applyControlBoxProps(slider, box);
     const visual = el("div", "cultui-slider-visual");
     const input = el("input", "cultui-slider-input");
diff --git a/packages/eve-browser-lowering/src/index.ts b/packages/eve-browser-lowering/src/index.ts
index 38db31e..b7e254f 100644
--- a/packages/eve-browser-lowering/src/index.ts
+++ b/packages/eve-browser-lowering/src/index.ts
@@ -1540,6 +1540,7 @@ function renderSlider(
   const max = Number(props.max ?? 1);
   const slider = el("div", "cultui-slider");
   slider.dataset.skin = stringProp(props.skin, "default");
+  slider.dataset.bind = stringProp(props.bind, "");
   applyControlBoxProps(slider, box);
   const visual = el("div", "cultui-slider-visual");
   const input = el("input", "cultui-slider-input") as HTMLInputElement;
diff --git a/web/surface.js b/web/surface.js
index aa5f965..600a606 100644
--- a/web/surface.js
+++ b/web/surface.js
@@ -244,6 +244,35 @@ async function publishCommandIntent(intent, component) {
     console.error("Eve command failed", receipt);
     return;
   }
-  statusEl.textContent = `command accepted ${command.command}`;
+  if (
+    receipt.schema !== "gamecult.eve.command_receipt.v1" ||
+    !receipt.commandId ||
+    receipt.command !== command.command ||
+    receipt.state !== "reconciled"
+  ) {
+    statusEl.textContent = `command failed ${command.command}`;
+    console.error("Eve command returned no correlated provider receipt", receipt);
+    return;
+  }
+  applyCommandReceipt(receipt);
+  statusEl.textContent = `command ${receipt.state} ${command.command}`;
   console.info("Eve command receipt", receipt);
 }
+
+function applyCommandReceipt(receipt) {
+  for (const diagnostic of receipt.diagnostics || []) {
+    if (!diagnostic?.binding || diagnostic.value === undefined) continue;
+    for (const control of document.querySelectorAll(`[data-bind="${CSS.escape(diagnostic.binding)}"]`)) {
+      const input = control.querySelector("input[type=range]");
+      if (input) {
+        input.value = String(diagnostic.value);
+        const min = Number(input.min || 0);
+        const max = Number(input.max || 1);
+        const value = Number(diagnostic.value);
+        const percent = max === min ? 0 : ((value - min) / (max - min)) * 100;
+        control.style.setProperty("--cultui-slider-value", `${Math.max(0, Math.min(100, percent))}%`);
+      }
+      control.dataset.value = String(diagnostic.value);
+    }
+  }
+}