From 9b835a4b6e180bd8e5e0a3b3aba223e3fa4fb74e Mon Sep 17 00:00:00 2001
From: teahubxyz <boring+teahub@agentmail.to>
Date: Fri, 23 Oct 2026 19:12:16 +0000
Subject: [PATCH] havre: the model picker's order (by name, cheapest first,
 priciest first) as pure functions

---
 ventures/havre/abilities.js | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/ventures/havre/abilities.js b/ventures/havre/abilities.js
index 443a385..12dfb5a 100644
--- a/ventures/havre/abilities.js
+++ b/ventures/havre/abilities.js
@@ -81,6 +81,41 @@ export const voicePrice = (model, chars) => (model && model.perMChars != null ?
 /** a minute of your voice, heard */
 export const hearingPerMinute = (model) => (model && model.perSecond != null ? model.perSecond * 60 : null);
 
+/**
+ * What a model costs, as the numbers the model picker sorts by, the first counting most: a text model's price in, then
+ * out (a chat is mostly what's sent in: the card, the memories, the conversation so far); a photo's price, then what each
+ * picture past the included ones adds; a voice's price for a million characters; hearing's price for a second. null when
+ * Venice lists no price (a clip: it prices each one when asked).
+ */
+export function modelCost(type, model) {
+  if (!model) return null;
+  const n = (x) => (typeof x === "number" && Number.isFinite(x) ? x : null);
+  const keys = type === "text" ? [n(model.input), n(model.output)]
+    : type === "inpaint" || type === "image" ? [n(model.price), n(model.extra)]
+    : type === "tts" ? [n(model.perMChars)]
+    : type === "asr" ? [n(model.perSecond)]
+    : [];
+  return keys.length && keys[0] != null ? keys.map((k) => k ?? 0) : null;
+}
+/** the orders the model picker has: by name (the one in use first), cheapest first, priciest first */
+export const MODEL_SORTS = ["name", "cheapest", "priciest"];
+/**
+ * The model picker's list in order, as a new list. "name": the ones rank puts higher first (the one in use, then the
+ * character's own), then A to Z. "cheapest" and "priciest": by modelCost, A to Z between equals, the ones without a price
+ * last either way, and none held at the top, so the one in use shows where its price puts it.
+ */
+export function sortModels(list, how = "name", { type = "text", rank = () => 0 } = {}) {
+  const all = [...(list || [])], byName = (a, b) => String(a.name || a.id).localeCompare(String(b.name || b.id));
+  if (how !== "cheapest" && how !== "priciest") return all.sort((a, b) => rank(b) - rank(a) || byName(a, b));
+  const dir = how === "priciest" ? -1 : 1, cost = new Map(all.map((m) => [m, modelCost(type, m)]));
+  return all.sort((a, b) => {
+    const x = cost.get(a), y = cost.get(b);
+    if (!x || !y) return (x ? 0 : 1) - (y ? 0 : 1) || byName(a, b);
+    for (let i = 0; i < x.length; i++) if (x[i] !== y[i]) return dir * (x[i] - y[i]);
+    return byName(a, b);
+  });
+}
+
 // ---------- what goes into a photo or a clip ----------
 
 // Content filters (Venice's, and the ones of the models' makers) read the words in a prompt, not the "no" in front of