fix: unify chat process and reply presentation

src/features/agent/answer-ui/answer-presentation.ts

@@ -1,25 +1,103 @@
 import type { AgentChatMessage } from "../types";
 import type { AnswerUiPart } from "./contract";
 
+/** Short notes and map confirmations stay inline; dense data and reports can expand. */
+export function canExpandAnswer(parts: AnswerUiPart[]): boolean {
+  let textLength = 0;
+  for (const part of parts) {
+    if (part.type === "text") {
+      textLength += part.text.replace(/\[\[ui:[^\]\r\n]*\]\]/g, "").length;
+    } else {
+      for (const node of Object.values(part.block.spec.elements)) {
+        if (["Table", "Chart", "FollowUpForm"].includes(node.type)) return true;
+        if (node.type === "Text" && typeof node.props.text === "string") textLength += node.props.text.length;
+        if (node.type === "Evidence" && typeof node.props.summary === "string") textLength += node.props.summary.length;
+        if (node.type === "Result" && typeof node.props.summary === "string") textLength += node.props.summary.length;
+      }
+    }
+  }
+  return textLength >= 1200;
+}
+
+/** Readable copy/TTS text for the same ordered parts shown in the answer. */
+export function getAnswerPartsTranscript(parts: AnswerUiPart[]): string {
+  return parts.reduce((text, part) => {
+    const next = part.type === "text" ? part.text : part.block.fallback_text;
+    if (!text || !next) return text + next;
+    return text + (text.endsWith("\n") || next.startsWith("\n") ? "" : "\n\n") + next;
+  }, "");
+}
+
+/** Final report transcript excludes process blocks and resolves authorized anchors. */
+export function getFinalAnswerTranscript(message: AgentChatMessage): string {
+  return getAnswerPartsTranscript(getAnswerPresentation(message).report);
+}
+
+function splitAnchors(content: string): Array<{ text: string } | { id: string }> {
+  const result: Array<{ text: string } | { id: string }> = [];
+  let buffer = "";
+  let fence: { character: string; length: number } | undefined;
+  for (const line of content.match(/[^\n]*\n|[^\n]+$/g) ?? []) {
+    const bare = line.replace(/\r?\n$/, "");
+    const delimiter = /^ {0,3}(`{3,}|~{3,})(.*)$/.exec(bare);
+    if (fence) {
+      buffer += line;
+      if (delimiter && delimiter[1][0] === fence.character && delimiter[1].length >= fence.length && !delimiter[2].trim()) fence = undefined;
+      continue;
+    }
+    if (delimiter) {
+      fence = { character: delimiter[1][0], length: delimiter[1].length };
+      buffer += line;
+      continue;
+    }
+    const anchor = /^ {0,3}\[\[ui:([^\]\r\n]*)\]\][ \t]*$/.exec(bare);
+    if (!anchor) { buffer += line; continue; }
+    if (buffer.trim()) result.push({ text: buffer });
+    buffer = "";
+    result.push({ id: anchor[1] });
+  }
+  if (buffer.trim()) result.push({ text: buffer });
+  return result;
+}
+
 export function getAnswerPresentation(message: AgentChatMessage): {
   report: AnswerUiPart[];
   process: AnswerUiPart[];
   final: boolean;
 } {
-  const parts =
-    message.answerParts ??
+  const parts = message.answerParts ??
     (message.content ? [{ type: "text" as const, text: message.content }] : []);
-  if (!message.finalAnswer) return { report: parts, process: [], final: false };
-  const selected = new Set(message.finalAnswer.uiBlockIds);
-  const report: AnswerUiPart[] = [{ type: "text", text: message.finalAnswer.content }];
-  for (const id of selected) {
-    const part = parts.find((item) => item.type === "answer-ui" && item.block.block_id === id);
-    if (part) report.push(part);
+  if (!message.finalAnswer) {
+    const isProcess = (part: AnswerUiPart) => part.type === "answer-ui" && part.block.phase === "process";
+    return { report: parts.filter((part) => !isProcess(part)), process: parts.filter(isProcess), final: false };
   }
-  const process = parts.filter((part) =>
-    part.type === "answer-ui"
-      ? !selected.has(part.block.block_id)
-      : part.text.trim() !== message.finalAnswer!.content.trim()
-  );
+  const selected = new Set(message.finalAnswer.uiBlockIds);
+  const available = new Map(parts.flatMap((part) =>
+    part.type === "answer-ui" ? [[part.block.block_id, part] as const] : []));
+  const mounted = new Set<string>();
+  const anchored = new Set<string>();
+  const report: AnswerUiPart[] = [];
+  for (const segment of splitAnchors(message.finalAnswer.content)) {
+    if ("text" in segment) { report.push({ type: "text", text: segment.text }); continue; }
+    anchored.add(segment.id);
+    const part = available.get(segment.id);
+    if (!selected.has(segment.id) || !part || part.block.phase === "process") {
+      report.push({ type: "text", text: "交互内容暂不可用。\n" });
+    } else if (!mounted.has(segment.id)) {
+      mounted.add(segment.id);
+      report.push(part);
+    }
+  }
+  // Old reports carried references without positional anchors.
+  for (const id of selected) {
+    const part = available.get(id);
+    if (part && part.block.phase !== "process" && !mounted.has(id) && !anchored.has(id)) {
+      mounted.add(id);
+      report.push(part);
+    }
+  }
+  const process = parts.filter((part) => part.type === "answer-ui"
+    ? !mounted.has(part.block.block_id)
+    : part.text.trim() !== message.finalAnswer!.content.trim());
   return { report, process, final: true };
 }