35 lines
1.5 KiB
TypeScript
35 lines
1.5 KiB
TypeScript
export type AssistantMentionReference = {
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type: "app" | "integration" | "board" | "widget";
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id: string;
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};
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const mentionPattern = /:(app|integration|board|widget)\[([^\]\n]{1,1024})\](?:\{name=([^}\n]{1,1024})\})?/gu;
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const getMessageText = (message: { parts: unknown[] }) =>
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message.parts
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.flatMap((part) => {
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if (!part || typeof part !== "object" || Array.isArray(part)) return [];
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const value = part as Record<string, unknown>;
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return value.type === "text" && typeof value.text === "string" ? [value.text] : [];
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})
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.join("\n");
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export const getRequestedMentionIds = (messages: { role: "user" | "assistant"; parts: unknown[] }[]) => {
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const mentions = new Map<string, AssistantMentionReference>();
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for (const message of messages) {
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if (message.role !== "user") continue;
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for (const match of getMessageText(message).matchAll(mentionPattern)) {
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const type = match[1] as AssistantMentionReference["type"];
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// assistant-ui stores the display label between brackets and the stable entity ID in `name`.
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// Keep the bracket value as a fallback for older messages written before named directives.
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const id = match[3] ?? match[2];
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if (id) mentions.set(`${type}:${id}`, { type, id });
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if (mentions.size >= 30) return [...mentions.values()];
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}
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}
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return [...mentions.values()];
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};
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export const sanitizeAttachmentFilename = (filename: string | undefined) =>
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(filename ?? "document").replaceAll(/[\n"<>]/gu, "_");
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