const MATRIX_OPENCLAW_PRESENTATION_KEY = "com.openclaw.presentation" as const;

const MATRIX_OPENCLAW_PRESENTATION_TYPE = "message.presentation" as const;

const MATRIX_EMPTY_PRESENTATION_FALLBACK_TEXT = "---";

type MatrixChannelData = {

extraContent?: MatrixExtraContentFields;

presentation: MessagePresentation;

}): ReplyPayload {

const matrixData = resolveMatrixChannelData(params.payload);

const fallbackText = renderMessagePresentationFallbackText({

text: params.payload.text,

presentation: params.presentation,

});

return {

...params.payload,

text: renderMessagePresentationFallbackText({

text: params.payload.text,

presentation: params.presentation,

}),

text: fallbackText.trim() ? fallbackText : MATRIX_EMPTY_PRESENTATION_FALLBACK_TEXT,

channelData: {

...params.payload.channelData,

matrix: {

};

}

function resolveMatrixPayloadText(payload: ReplyPayload): string {

const text = payload.text ?? "";

if (text.trim() || !resolveMatrixPresentationContent(payload)) {

return text;

}

return MATRIX_EMPTY_PRESENTATION_FALLBACK_TEXT;

}

function resolveMatrixExtraContent(payload: ReplyPayload): MatrixExtraContentFields | undefined {

const presentation = resolveMatrixPresentationContent(payload);

return presentation ? { [MATRIX_OPENCLAW_PRESENTATION_KEY]: presentation } : undefined;

...(replyToMode !== undefined ? { replyToMode } : {}),

});

const urls = resolvePayloadMediaUrls(payload);

const payloadText = resolveMatrixPayloadText(payload);

if (urls.length > 0) {

let lastResult: Awaited<ReturnType<typeof send>> | undefined;

for (let i = 0; i < urls.length; i++) {

const isFirst = i === 0;

lastResult = await send(to, isFirst ? (payload.text ?? "") : "", {

lastResult = await send(to, isFirst ? payloadText : "", {

cfg,

mediaUrl: urls[i],

mediaAccess,

roomId: lastResult!.roomId,

};

}

const result = await send(to, payload.text ?? "", {

const result = await send(to, payloadText, {

cfg,

mediaUrl: payload.mediaUrl,

mediaAccess,