27 lines
1.6 KiB
TypeScript
27 lines
1.6 KiB
TypeScript
import type { ValueSchema } from "@wrnexus/blocks";
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export interface TextRun { text: string; bold?: boolean; italic?: boolean; underline?: boolean }
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export const richTextSchema: ValueSchema<TextRun[]> = {
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kind: "rich-text",
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parse(value = [], path = "richText") {
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if (!Array.isArray(value) || value.length > 4000 || value.some(run => !run || typeof run !== "object" || typeof run.text !== "string" || Object.keys(run).some(key => !["text", "bold", "italic", "underline"].includes(key)) || ["bold", "italic", "underline"].some(key => run[key] !== undefined && typeof run[key] !== "boolean")) || value.reduce((size, run) => size + run.text.length, 0) > 200000)
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return { ok: false, errors: [{code: "email.rich-text", message: "Invalid or oversized rich text.", severity: "error", path}] };
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return { ok: true, value };
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},
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};
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const escape = (value: string) => value.replaceAll("&", "&").replaceAll("<", "<").replaceAll(">", ">").replaceAll('"', """).replaceAll("'", "'").replace(/\r\n?|\n/g, "<br />");
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/** Ignore stale formatting if a plain-text inspector or importer changed the text. */
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export function renderRichText(props: Record<string, unknown>): string {
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const parsed = richTextSchema.parse(props.richText);
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const text = String(props.text ?? "");
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if (!parsed.ok || !parsed.value.length || parsed.value.map(run => run.text).join("") !== text) return escape(text);
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return parsed.value.map(run => {
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let result = escape(run.text);
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if (run.underline) result = `<u>${result}</u>`;
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if (run.italic) result = `<em>${result}</em>`;
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if (run.bold) result = `<strong>${result}</strong>`;
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return result;
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}).join("");
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}
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