38 lines
1.7 KiB
TypeScript
38 lines
1.7 KiB
TypeScript
/**
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* THE SESSION MARKDOWN EXPORT (owner, release polish 2026-10-06): the
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* user-facing export the session-markdown engine was built for — the
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* same document the extractor reads, minted anchorless (anchors are
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* extraction provenance; a learner's export carries no message ids).
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*
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* GET /api/chats/:id/markdown → the whole session as one markdown file
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* (Content-Disposition attachment; filename from the slugified title).
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* 404 unknown chat. Both session kinds export — practice sessions ride
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* the same engine (problem/conclude results render as tool blocks,
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* markers are invisible by the engine's law).
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*/
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import { sessionMarkdown } from "@/src/core";
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import { getChat, applicationLanguage } from "@/src/server";
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/** Filename-safe title (own module scope on purpose: tiny + pure). */
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function slugify(title: string): string {
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const slug = title
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.toLowerCase()
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.normalize("NFKD")
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.replace(/[^\p{L}\p{N}]+/gu, "-")
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.replace(/^-+|-+$/g, "");
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return slug.length > 0 ? slug : "session";
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}
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export async function GET(_req: Request, ctx: { params: Promise<{ id: string }> }): Promise<Response> {
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const { id } = await ctx.params;
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const record = getChat(id);
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if (!record) return Response.json({ error: "Unknown chat" }, { status: 404 });
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const markdown = sessionMarkdown(record.messages, { title: record.title, anchors: false, language: applicationLanguage(_req.headers.get("accept-language")) });
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return new Response(markdown, {
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headers: {
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"content-type": "text/markdown; charset=utf-8",
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"content-disposition": `attachment; filename="${/^[a-z0-9-]+$/.test(slugify(record.title)) ? slugify(record.title) : "session"}.md"; filename*=UTF-8''${encodeURIComponent(slugify(record.title))}.md`,
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},
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});
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}
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