export function getStatusPluginOwnershipSource(): string[] {
  return [
    '',
    'function currentAttention() {',
    '  let latestQuestion = null;',
    '  for (const attention of pendingAttentionByKey.values()) {',
    '    if (attention.hookEventName === "PermissionRequest") return attention;',
    '    latestQuestion = attention;',
    '  }',
    '  return latestQuestion;',
    '}',
    '',
    'function attentionKey(factoryID, hookEventName, requestID, sourceSessionID) {',
    '  // Why: custom plugins may reuse request IDs across sessions or factories;',
    '  // JSON tuple identity prevents one owner from hiding another blocker.',
    '  return JSON.stringify([factoryID, hookEventName, requestID, sourceSessionID || ""]);',
    '}',
    '',
    'function clearAttentionForSession(sessionID, factoryID) {',
    '  let rootSessionID = null;',
    '  for (const [key, attention] of pendingAttentionByKey) {',
    '    if (attention.sourceSessionID === sessionID && attention.factoryID === factoryID) {',
    '      pendingAttentionByKey.delete(key);',
    '      rootSessionID = attention.properties?.sessionID || sessionID;',
    '    }',
    '  }',
    '  return rootSessionID;',
    '}',
    '',
    'function clearQuestionForToolPart(part, sessionID, factoryID) {',
    '  if (',
    '    part?.type !== "tool" ||',
    '    part.tool !== "question" ||',
    '    (part.state?.status !== "completed" && part.state?.status !== "error")',
    '  ) return null;',
    '  let rootSessionID = null;',
    '  for (const [key, attention] of pendingAttentionByKey) {',
    '    const tool = attention.properties?.tool;',
    '    if (',
    '      attention.hookEventName === "AskUserQuestion" &&',
    '      attention.sourceSessionID === sessionID &&',
    '      attention.factoryID === factoryID &&',
    '      tool?.messageID === part.messageID &&',
    '      tool?.callID === part.callID',
    '    ) {',
    '      pendingAttentionByKey.delete(key);',
    '      rootSessionID = attention.properties?.sessionID || sessionID;',
    '    }',
    '  }',
    '  return rootSessionID;',
    '}',
    '',
    'function clearAttentionForResolution(event, sessionID, factoryID) {',
    '  const hookEventName =',
    '    event.type === "permission.replied" ? "PermissionRequest" : "AskUserQuestion";',
    '  const requestID = event.properties?.requestID || "";',
    '  const key = attentionKey(factoryID, hookEventName, requestID, sessionID);',
    '  const attention = pendingAttentionByKey.get(key);',
    '  if (!attention || attention.sourceSessionID !== sessionID) return null;',
    '  pendingAttentionByKey.delete(key);',
    '  return attention.properties?.sessionID || sessionID;',
    '}',
    '',
    'function provisionalBusyKey(factoryID, sessionID) {',
    '  return JSON.stringify([factoryID, sessionID || ""]);',
    '}',
    '',
    'function rememberProvisionalBusy(sessionID, factoryID) {',
    '  const key = provisionalBusyKey(factoryID, sessionID);',
    '  // Why: active ownership cannot be LRU-evicted without allowing false',
    '  // Idle; exact matching Idle or factory disposal lifecycle-bounds it.',
    '  provisionalBusyByKey.delete(key);',
    '  provisionalBusyByKey.set(key, { sessionID, factoryID });',
    '}',
    '',
    'function clearProvisionalBusy(sessionID, factoryID) {',
    '  return provisionalBusyByKey.delete(provisionalBusyKey(factoryID, sessionID));',
    '}',
    '',
    'function busyChildKey(factoryID, sessionID) {',
    '  return JSON.stringify([factoryID, sessionID || ""]);',
    '}',
    '',
    'function rememberBusyChild(sessionID, rootSessionID, factoryID) {',
    '  const key = busyChildKey(factoryID, sessionID);',
    '  // Why: repeated Busy for the same child is not a state change; report one',
    '  // only when the pane actually gains a running descendant.',
    '  if (busyChildRootByKey.get(key)?.sessionID === rootSessionID) return false;',
    '  busyChildRootByKey.delete(key);',
    '  busyChildRootByKey.set(key, { sessionID: rootSessionID, factoryID });',
    '  return true;',
    '}',
    '',
    'function clearBusyChild(sessionID, factoryID) {',
    '  return busyChildRootByKey.delete(busyChildKey(factoryID, sessionID));',
    '}',
    '',
    'function clearKnownBusyRoot(sessionID, factoryID) {',
    '  if (busyRootOwnerBySessionID.get(sessionID) !== factoryID) return false;',
    '  busyRootOwnerBySessionID.delete(sessionID);',
    '  return true;',
    '}',
    '',
    'function latestBusyOwner() {',
    '  let latest = null;',
    '  // Why: a running descendant is reported under its ROOT id, and ranks',
    '  // below a directly busy root so an ongoing turn keeps labelling the pane.',
    '  for (const busyChild of busyChildRootByKey.values()) {',
    '    latest = busyChild;',
    '  }',
    '  for (const [sessionID, factoryID] of busyRootOwnerBySessionID) {',
    '    latest = { sessionID, factoryID };',
    '  }',
    '  for (const provisional of provisionalBusyByKey.values()) {',
    '    latest = provisional;',
    '  }',
    '  return latest;',
    '}',
    '',
    'async function publishAggregateStatus(fallbackFactoryID, preferredSessionID) {',
    '  const attention = currentAttention();',
    '  if (attention) {',
    '    await setAttention(',
    '      attention.hookEventName,',
    '      attention.properties,',
    '      attention.factoryID,',
    '      attention.sourceSessionID',
    '    );',
    '    return;',
    '  }',
    '  const busyOwner = latestBusyOwner();',
    '  if (busyOwner) {',
    '    await setStatus("busy", { sessionID: busyOwner.sessionID }, busyOwner.factoryID);',
    '    return;',
    '  }',
    '  await setStatus("idle", { sessionID: preferredSessionID }, fallbackFactoryID);',
    '}',
    '',
    'async function publishOwnershipChange(fallbackFactoryID, preferredSessionID) {',
    '  stateArrivalRevision += 1;',
    '  // Why: exact blocker/Busy retirement is authoritative even if ancestry',
    '  // lookup failed; every older preview must settle before its replacement.',
    '  await flushPendingAssistantPart(true);',
    '  await publishAggregateStatus(fallbackFactoryID, preferredSessionID);',
    '}',
    ''
  ]
}