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/**
* Pure provider/model dropdown helpers for the Named Agents editor — zero DOM.
*
* A Named Agent's persisted `model` is the canonical `<provider>/<model>`
* identifier, but the edit UI splits it into a provider dropdown + a model
* dropdown (plan §3/§5.2). These helpers derive those dropdowns from the raw
* `GET /models` catalog — the SAME key grouping the regular model picker uses.
* Catalog latency is acceptable here (human configuration), and it must not
* affect the agent-facing list/summon hot paths (plan §9).
*/
/** The provider id prefix of a `<provider>/<model>` name (the part before the first `/`, or the whole string). */
export function providerFromModel(full: string): string {
const i = full.indexOf("/");
return i === -1 ? full : full.slice(0, i);
}
/** The model suffix of a `<provider>/<model>` name (the part after the first `/`; empty when slashless). */
export function modelFromFull(full: string): string {
const i = full.indexOf("/");
return i === -1 ? "" : full.slice(i + 1);
}
/** Recombine a provider + model suffix into a canonical `<provider>/<model>` name (provider-only if no model). */
export function joinModel(provider: string, model: string): string {
return model === "" ? provider : `${provider}/${model}`;
}
/**
* Distinct provider ids across the catalog, in first-seen order, with numbered
* OpenCode credentials sorted NUMERICALLY before other providers (the same
* grouping the regular model picker uses — `opencode-2` before `opencode-10`,
* then everything else). A friendly display label is produced separately so the
* RAW id stays what gets persisted.
*/
export function providerOptions(models: readonly string[]): string[] {
const seen = new Set<string>();
const openCodeKeys: Array<{ key: string; n: number }> = [];
const otherKeys: string[] = [];
for (const full of models) {
const p = providerFromModel(full);
if (p === "" || seen.has(p)) continue;
seen.add(p);
const n = openCodeNumber(p);
if (n !== null) openCodeKeys.push({ key: p, n });
else otherKeys.push(p);
}
openCodeKeys.sort((a, b) => a.n - b.n);
return [...openCodeKeys.map((e) => e.key), ...otherKeys];
}
/** The numeric identity of a numbered OpenCode provider (`opencode-1` → 1), or null. */
export function openCodeNumber(key: string): number | null {
const m = /^opencode-([1-9][0-9]*)$/.exec(key);
return m === null ? null : Number(m[1]);
}
/**
* Friendly display label for a provider id: `opencode-<n>` → "OpenCode #<n>";
* any other id unchanged. Presentation only — the RAW id is what gets persisted.
*/
export function providerLabel(provider: string): string {
const n = openCodeNumber(provider);
return n === null ? provider : `OpenCode #${n}`;
}
/** The model suffixes available under a given provider, in catalog order. */
export function modelsForProvider(models: readonly string[], provider: string): string[] {
const out: string[] = [];
for (const full of models) {
if (providerFromModel(full) === provider) out.push(modelFromFull(full));
}
return out;
}
/**
* The model suffixes in the catalog that a Named Agent's model suffix may match.
* A saved Named Agent may reference a provider/model pair no longer present in a
* live catalog (e.g. a credential was removed); the editor then shows the saved
* RAW full name as an unavailable selection rather than silently rewriting it.
*/
export function fullModelFromSelection(provider: string, model: string): string {
return joinModel(provider, model);
}
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