Refine issue chat chain-of-thought mapping

ui/src/lib/transcriptPresentation.ts

@@ -0,0 +1,204 @@
+type TranscriptDensity = "comfortable" | "compact";
+
+type TranscriptActivity = {
+  activityId?: string;
+  name: string;
+  status: "running" | "completed";
+};
+
+function asRecord(value: unknown): Record<string, unknown> | null {
+  if (typeof value !== "object" || value === null || Array.isArray(value)) return null;
+  return value as Record<string, unknown>;
+}
+
+function compactWhitespace(value: string): string {
+  return value.replace(/\s+/g, " ").trim();
+}
+
+function truncate(value: string, max: number): string {
+  return value.length > max ? `${value.slice(0, Math.max(0, max - 1))}...` : value;
+}
+
+function humanizeLabel(value: string): string {
+  return value
+    .replace(/[_-]+/g, " ")
+    .trim()
+    .replace(/\b\w/g, (char) => char.toUpperCase());
+}
+
+function stripWrappedShell(command: string): string {
+  const trimmed = compactWhitespace(command);
+  const shellWrapped = trimmed.match(/^(?:(?:\/bin\/)?(?:zsh|bash|sh)|cmd(?:\.exe)?(?:\s+\/d)?(?:\s+\/s)?(?:\s+\/c)?)\s+(?:-lc|\/c)\s+(.+)$/i);
+  const inner = shellWrapped?.[1] ?? trimmed;
+  const quoted = inner.match(/^(['"])([\s\S]*)\1$/);
+  return compactWhitespace(quoted?.[2] ?? inner);
+}
+
+function formatUnknown(value: unknown): string {
+  if (typeof value === "string") return value;
+  if (value === null || value === undefined) return "";
+  try {
+    return JSON.stringify(value, null, 2);
+  } catch {
+    return String(value);
+  }
+}
+
+function summarizeRecord(record: Record<string, unknown>, keys: string[]): string | null {
+  for (const key of keys) {
+    const value = record[key];
+    if (typeof value === "string" && value.trim()) {
+      return truncate(compactWhitespace(value), 120);
+    }
+  }
+  return null;
+}
+
+function parseStructuredToolResult(result: string | undefined) {
+  if (!result) return null;
+  const lines = result.split(/\r?\n/);
+  const metadata = new Map<string, string>();
+  let bodyStartIndex = lines.findIndex((line) => line.trim() === "");
+  if (bodyStartIndex === -1) bodyStartIndex = lines.length;
+
+  for (let index = 0; index < bodyStartIndex; index += 1) {
+    const match = lines[index]?.match(/^([a-z_]+):\s*(.+)$/i);
+    if (match) {
+      metadata.set(match[1].toLowerCase(), compactWhitespace(match[2]));
+    }
+  }
+
+  const body = lines.slice(Math.min(bodyStartIndex + 1, lines.length))
+    .map((line) => compactWhitespace(line))
+    .filter(Boolean)
+    .join("\n");
+
+  return {
+    command: metadata.get("command") ?? null,
+    status: metadata.get("status") ?? null,
+    exitCode: metadata.get("exit_code") ?? null,
+    body,
+  };
+}
+
+export function formatToolPayload(value: unknown): string {
+  if (typeof value === "string") {
+    try {
+      return JSON.stringify(JSON.parse(value), null, 2);
+    } catch {
+      return value;
+    }
+  }
+  return formatUnknown(value);
+}
+
+export function parseToolPayload(value: string): unknown {
+  try {
+    return JSON.parse(value);
+  } catch {
+    return value;
+  }
+}
+
+export function isCommandTool(name: string, input: unknown): boolean {
+  if (name === "command_execution" || name === "shell" || name === "shellToolCall" || name === "bash") {
+    return true;
+  }
+  if (typeof input === "string") {
+    return /\b(?:bash|zsh|sh|cmd|powershell)\b/i.test(input);
+  }
+  const record = asRecord(input);
+  return Boolean(record && (typeof record.command === "string" || typeof record.cmd === "string"));
+}
+
+export function displayToolName(name: string, input: unknown): string {
+  if (isCommandTool(name, input)) return "Executing command";
+  return humanizeLabel(name);
+}
+
+export function summarizeToolInput(
+  name: string,
+  input: unknown,
+  density: TranscriptDensity = "comfortable",
+): string {
+  const compactMax = density === "compact" ? 72 : 120;
+  if (typeof input === "string") {
+    const normalized = isCommandTool(name, input) ? stripWrappedShell(input) : compactWhitespace(input);
+    return truncate(normalized, compactMax);
+  }
+  const record = asRecord(input);
+  if (!record) {
+    const serialized = compactWhitespace(formatUnknown(input));
+    return serialized ? truncate(serialized, compactMax) : `Inspect ${name} input`;
+  }
+
+  const command = typeof record.command === "string"
+    ? record.command
+    : typeof record.cmd === "string"
+      ? record.cmd
+      : null;
+  if (command && isCommandTool(name, record)) {
+    return truncate(stripWrappedShell(command), compactMax);
+  }
+
+  const direct =
+    summarizeRecord(record, ["command", "cmd", "path", "filePath", "file_path", "query", "url", "prompt", "message"])
+    ?? summarizeRecord(record, ["pattern", "name", "title", "target", "tool"])
+    ?? null;
+  if (direct) return truncate(direct, compactMax);
+
+  if (Array.isArray(record.paths) && record.paths.length > 0) {
+    const first = record.paths.find((value): value is string => typeof value === "string" && value.trim().length > 0);
+    if (first) {
+      return truncate(`${record.paths.length} paths, starting with ${first}`, compactMax);
+    }
+  }
+
+  const keys = Object.keys(record);
+  if (keys.length === 0) return `No ${name} input`;
+  if (keys.length === 1) return truncate(`${keys[0]} payload`, compactMax);
+  return truncate(`${keys.length} fields: ${keys.slice(0, 3).join(", ")}`, compactMax);
+}
+
+export function summarizeToolResult(
+  result: string | undefined,
+  isError: boolean | undefined,
+  density: TranscriptDensity = "comfortable",
+): string {
+  if (!result) return isError ? "Tool failed" : "Waiting for result";
+  const structured = parseStructuredToolResult(result);
+  if (structured) {
+    if (structured.body) {
+      return truncate(structured.body.split("\n")[0] ?? structured.body, density === "compact" ? 84 : 140);
+    }
+    if (structured.status === "completed") return "Completed";
+    if (structured.status === "failed" || structured.status === "error") {
+      return structured.exitCode ? `Failed with exit code ${structured.exitCode}` : "Failed";
+    }
+  }
+  const lines = result
+    .split(/\r?\n/)
+    .map((line) => compactWhitespace(line))
+    .filter(Boolean);
+  const firstLine = lines[0] ?? result;
+  return truncate(firstLine, density === "compact" ? 84 : 140);
+}
+
+export function parseSystemActivity(text: string): TranscriptActivity | null {
+  const match = text.match(/^item (started|completed):\s*([a-z0-9_-]+)(?:\s+\(id=([^)]+)\))?$/i);
+  if (!match) return null;
+  return {
+    status: match[1].toLowerCase() === "started" ? "running" : "completed",
+    name: humanizeLabel(match[2] ?? "Activity"),
+    activityId: match[3] || undefined,
+  };
+}
+
+export function shouldHideNiceModeStderr(text: string): boolean {
+  const normalized = compactWhitespace(text).toLowerCase();
+  return normalized.startsWith("[paperclip] skipping saved session resume");
+}
+
+export function summarizeNotice(text: string, max = 160): string {
+  return truncate(compactWhitespace(text), max);
+}