jaredandClaude Opus 5
9f8fae964d
m.replace events no longer appear as their own "* text" line — the original row gets m.new_content and an (edited) marker. Media rows carry a [Image]/[Video]/[Audio]/[File] prefix and the JSON export includes mediaUrl; the UI notes attachments aren't included. Unit-tested. Fixes #50 Fixes #81 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
77 lines
2.5 KiB
TypeScript
77 lines
2.5 KiB
TypeScript
// Pure helpers for ExportRoomHistory.tsx, kept SDK/DOM-free so they're easy to
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// unit test in isolation.
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export type RawExportRecord = {
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eventId: string;
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ts: number;
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sender: string;
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body: string;
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msgtype: string;
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// Set when this record IS an m.replace edit event, to the event id it targets.
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editsEventId?: string;
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// The m.new_content.body carried by an m.replace edit event.
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newBody?: string;
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};
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export type ResolvedExportRecord = {
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eventId: string;
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ts: number;
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sender: string;
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body: string;
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msgtype: string;
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edited: boolean;
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};
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// Human-readable label for media msgtypes, used to prefix txt/html export rows
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// so a media message isn't indistinguishable from a plain-text one.
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export const MEDIA_TYPE_LABELS: Partial<Record<string, string>> = {
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'm.image': 'Image',
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'm.video': 'Video',
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'm.audio': 'Audio',
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'm.file': 'File',
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};
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/**
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* Resolves m.replace (edit) events against the original message they target:
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* the edit event is dropped from the output (it should not appear as its own
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* row), and the original message's body is replaced with the edit's
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* `m.new_content.body`, marked `edited: true`.
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*
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* Order-independent: edits may appear before or after their target in the
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* input (e.g. across separate back-pagination batches).
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*/
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export function resolveMessageEdits(records: RawExportRecord[]): ResolvedExportRecord[] {
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const edits = new Map<string, string>();
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for (const record of records) {
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if (record.editsEventId && record.newBody) {
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edits.set(record.editsEventId, record.newBody);
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}
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}
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const resolved: ResolvedExportRecord[] = [];
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for (const record of records) {
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// Edit events never become their own row.
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if (record.editsEventId) continue;
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const editedBody = edits.get(record.eventId);
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resolved.push({
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eventId: record.eventId,
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ts: record.ts,
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sender: record.sender,
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body: editedBody ?? record.body,
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msgtype: record.msgtype,
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edited: editedBody !== undefined,
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});
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}
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return resolved;
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}
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// Prefixes a media message's body with a "[Image]"-style marker for txt/html
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// export output, and appends an "(edited)" suffix when applicable. Plain-text
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// messages are returned unchanged (aside from the edited suffix).
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export function formatExportBody(record: ResolvedExportRecord): string {
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const label = MEDIA_TYPE_LABELS[record.msgtype];
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const mediaPrefix = label ? `[${label}] ` : '';
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const editedSuffix = record.edited ? ' (edited)' : '';
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return `${mediaPrefix}${record.body}${editedSuffix}`;
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}
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