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/**
* Pure validation for Named Agent form fields — zero DOM, zero effects.
*
* A Named Agent is usable only when (plan §5.4): the name is nonempty + unique
* case-insensitively, and a provider + model are selected. These pure helpers
* drive the card UI's validity gating + inline messages; the backend remains
* the authority (it 400s/conflicts on a duplicate or empty name / malformed
* model identifier).
*/
/** Trim + collapse runs of whitespace inside a name (survey-style display). */
export function normalizeName(raw: string): string {
return raw.trim().replace(/\s+/g, " ");
}
/**
* A name-validation error message, or `null` when the name is valid. `otherNames`
* are the OTHER agents' names for the case-insensitive uniqueness check (the
* caller EXCLUDES the card's own last-persisted name / the card being edited).
*/
export function nameError(name: string, otherNames: readonly string[]): string | null {
const normalized = normalizeName(name);
if (normalized.length === 0) return "Name is required.";
const lower = normalized.toLowerCase();
for (const other of otherNames) {
if (other.trim().toLowerCase() === lower) return "A named agent with this name already exists.";
}
return null;
}
/** True iff `name` is a unique, nonempty agent name among `otherNames`. */
export function isUsableName(name: string, otherNames: readonly string[]): boolean {
return nameError(name, otherNames) === null;
}
/**
* Whether a full model identifier is syntactically valid — a canonical
* `<provider>/<model>` with a nonempty provider (the part before the first "/")
* AND a nonempty model (the part after). A slashless or provider-only value is
* invalid for a Named Agent (it must resolve to a concrete model).
*/
export function isUsableModel(full: string): boolean {
const i = full.indexOf("/");
if (i <= 0) return false; // no slash, or empty provider
const model = full.slice(i + 1);
return model.length > 0;
}
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