agent-ecosystem/src/renderer/utils/streamJsonParser.ts
2026-04-28 16:08:05 +03:00

627 lines
19 KiB
TypeScript

/**
* Stream-JSON Parser
*
* Parses CLI stream-json stdout lines into AIGroupDisplayItem[] for rich rendering.
* Used by CliLogsRichView to replace raw JSON display with beautiful components.
*/
import { getToolSummary } from '@renderer/utils/toolRendering/toolSummaryHelpers';
import { summarizeAgentToolInput } from '@shared/utils/toolSummary';
import type { AIGroupDisplayItem, LinkedToolItem } from '@renderer/types/groups';
/**
* A group of display items from one or more consecutive assistant messages.
*/
export interface StreamJsonGroup {
/** Unique group ID */
id: string;
/** Display items within this group */
items: AIGroupDisplayItem[];
/** Human-readable summary (e.g. "1 thinking, 2 tool calls") */
summary: string;
/** Timestamp of first message in group */
timestamp: Date;
/** If set, this group belongs to a subagent (not the lead). */
agentId?: string;
}
/** A subagent section wrapping consecutive groups from the same agentId. */
export interface SubagentSection {
id: string;
agentId: string;
/** Human-readable description from the Agent tool_use that spawned this subagent */
description: string;
groups: StreamJsonGroup[];
toolCount: number;
timestamp: Date;
}
/** Union type for the final render list after subagent grouping. */
export type StreamJsonEntry =
| { type: 'group'; group: StreamJsonGroup }
| { type: 'subagent-section'; section: SubagentSection };
interface ContentBlock {
type: string;
text?: string;
thinking?: string;
id?: string;
name?: string;
input?: Record<string, unknown>;
}
interface CodexNativeJsonEvent {
type?: string;
thread_id?: string;
item?: {
id?: string;
type?: string;
text?: string;
server?: string;
tool?: string;
arguments?: unknown;
result?: unknown;
error?: unknown;
status?: string;
};
usage?: {
input_tokens?: number;
cached_input_tokens?: number;
output_tokens?: number;
};
}
interface CodexNativeProjectedSystemEvent {
type?: string;
subtype?: string;
content?: string;
level?: string;
codexNativeThreadStatus?: string;
codexNativeThreadId?: string;
}
/**
* Content-based hash for deterministic fallback IDs that survive
* line reordering and pagination changes.
* Caps input length to avoid hashing huge payloads.
*/
function stableHash(s: string): string {
let h = 0;
const len = Math.min(s.length, 500);
for (let i = 0; i < len; i++) {
h = (Math.imul(31, h) + s.charCodeAt(i)) | 0;
}
return (h >>> 0).toString(36);
}
/**
* Attempts to extract the content array from a parsed stream-json line.
* Handles both `{ type: "assistant", content: [...] }` (direct) and
* `{ type: "assistant", message: { type: "message", content: [...] } }` (wrapped) formats.
*/
function extractContentBlocks(parsed: unknown): ContentBlock[] | null {
if (!parsed || typeof parsed !== 'object') return null;
const obj = parsed as Record<string, unknown>;
// Only process assistant messages
if (obj.type !== 'assistant') return null;
// Direct format: { type: "assistant", content: [...] }
if (Array.isArray(obj.content)) {
return obj.content as ContentBlock[];
}
// Wrapped format: { type: "assistant", message: { type: "message", content: [...] } }
// The inner message.type is "message" (not "assistant")
if (obj.message && typeof obj.message === 'object') {
const msg = obj.message as Record<string, unknown>;
if (Array.isArray(msg.content)) {
return msg.content as ContentBlock[];
}
}
return null;
}
function asRecord(value: unknown): Record<string, unknown> | null {
return value && typeof value === 'object' && !Array.isArray(value)
? (value as Record<string, unknown>)
: null;
}
function extractCodexToolResultText(value: unknown): string | null {
if (typeof value === 'string' && value.trim()) {
return value.trim();
}
const record = asRecord(value);
const content = record?.content;
if (Array.isArray(content)) {
const text = content
.map((block) => asRecord(block))
.map((block) => (block?.type === 'text' && typeof block.text === 'string' ? block.text : ''))
.filter((entry) => entry.trim().length > 0)
.join('\n')
.trim();
if (text) return text;
}
if (record?.structured_content != null) {
return JSON.stringify(record.structured_content);
}
return null;
}
function extractCodexToolErrorText(value: unknown): string | null {
const record = asRecord(value);
const message = record?.message;
return typeof message === 'string' && message.trim() ? message.trim() : null;
}
function getCodexToolDisplayName(serverName: string, toolName: string): string {
return serverName === 'agent-teams' ? `agent-teams_${toolName}` : `${serverName}_${toolName}`;
}
function createCodexToolItem(
event: CodexNativeJsonEvent,
timestamp: Date,
lineIndex: number
): AIGroupDisplayItem | null {
const item = event.item;
if (
(event.type !== 'item.started' && event.type !== 'item.completed') ||
item?.type !== 'mcp_tool_call' ||
typeof item.server !== 'string' ||
typeof item.tool !== 'string'
) {
return null;
}
const input = asRecord(item.arguments) ?? {};
const status = typeof item.status === 'string' && item.status.trim() ? item.status : 'unknown';
const errorText = extractCodexToolErrorText(item.error);
const resultText = extractCodexToolResultText(item.result);
const isCompleted = event.type === 'item.completed';
const toolName = getCodexToolDisplayName(item.server, item.tool);
const linkedTool: LinkedToolItem = {
id: item.id ?? `codex-tool-L${lineIndex}`,
name: toolName,
input,
inputPreview: getToolSummary(toolName, input),
startTime: timestamp,
isOrphaned: !isCompleted,
};
if (isCompleted) {
linkedTool.endTime = timestamp;
linkedTool.isOrphaned = false;
if (resultText || errorText) {
linkedTool.result = {
content: resultText ?? errorText ?? '',
isError: status === 'failed' || errorText !== null,
};
linkedTool.outputPreview = resultText ?? errorText ?? undefined;
}
}
return { type: 'tool', tool: linkedTool };
}
function codexNativeEventToDisplayItems(
parsed: unknown,
timestamp: Date,
lineIndex: number
): AIGroupDisplayItem[] | null {
const event = asRecord(parsed) as CodexNativeJsonEvent | null;
if (!event || typeof event.type !== 'string') {
return null;
}
if (event.type === 'thread.started') {
const threadId =
typeof event.thread_id === 'string' && event.thread_id.trim()
? `: ${event.thread_id.trim()}`
: '';
return [{ type: 'output', content: `Codex native thread started${threadId}.`, timestamp }];
}
if (event.type === 'turn.started') {
return [{ type: 'output', content: 'Codex turn started.', timestamp }];
}
if (event.type === 'turn.completed') {
const usage = event.usage;
const usageParts = [
typeof usage?.input_tokens === 'number' ? `${usage.input_tokens} input` : null,
typeof usage?.cached_input_tokens === 'number' ? `${usage.cached_input_tokens} cached` : null,
typeof usage?.output_tokens === 'number' ? `${usage.output_tokens} output` : null,
].filter((part): part is string => Boolean(part));
const suffix = usageParts.length > 0 ? ` (${usageParts.join(', ')} tokens)` : '';
return [{ type: 'output', content: `Codex turn completed${suffix}.`, timestamp }];
}
if (
event.type === 'item.completed' &&
event.item?.type === 'agent_message' &&
typeof event.item.text === 'string' &&
event.item.text.trim()
) {
return [{ type: 'output', content: event.item.text.trim(), timestamp }];
}
const toolItem = createCodexToolItem(event, timestamp, lineIndex);
if (toolItem) {
return [toolItem];
}
return null;
}
function codexNativeProjectedSystemToDisplayItems(
parsed: unknown,
timestamp: Date
): AIGroupDisplayItem[] | null {
const event = asRecord(parsed) as CodexNativeProjectedSystemEvent | null;
if (event?.type !== 'system' || typeof event.subtype !== 'string') {
return null;
}
if (
event.subtype !== 'codex_native_thread_status' &&
event.subtype !== 'codex_native_warning' &&
event.subtype !== 'codex_native_execution_summary'
) {
return null;
}
const content =
typeof event.content === 'string' && event.content.trim()
? event.content.trim()
: event.subtype === 'codex_native_thread_status'
? `Codex native thread ${event.codexNativeThreadStatus ?? 'status'}${
event.codexNativeThreadId ? `: ${event.codexNativeThreadId}` : ''
}.`
: null;
return content ? [{ type: 'output', content, timestamp }] : null;
}
/**
* Converts content blocks from a single assistant message into display items.
* @param lineIndex - stable line position for deterministic fallback IDs
*/
function contentBlocksToDisplayItems(
blocks: ContentBlock[],
timestamp: Date,
lineIndex: number
): AIGroupDisplayItem[] {
const items: AIGroupDisplayItem[] = [];
for (let blockIdx = 0; blockIdx < blocks.length; blockIdx++) {
const block = blocks[blockIdx];
switch (block.type) {
case 'thinking': {
const text = block.thinking ?? '';
if (text.trim()) {
items.push({ type: 'thinking', content: text, timestamp });
}
break;
}
case 'text': {
const text = block.text ?? '';
if (text.trim()) {
items.push({ type: 'output', content: text, timestamp });
}
break;
}
case 'tool_use': {
const input = block.input ?? {};
const toolName = block.name ?? 'Unknown';
const linkedTool: LinkedToolItem = {
id: block.id ?? `stream-tool-L${lineIndex}-B${blockIdx}`,
name: toolName,
input,
inputPreview: getToolSummary(toolName, input),
startTime: timestamp,
isOrphaned: true,
};
items.push({ type: 'tool', tool: linkedTool });
break;
}
}
}
return items;
}
/**
* Builds a human-readable summary string from display items.
*/
function buildGroupSummary(items: AIGroupDisplayItem[]): string {
let thinkingCount = 0;
let toolCount = 0;
let outputCount = 0;
for (const item of items) {
switch (item.type) {
case 'thinking':
thinkingCount++;
break;
case 'tool':
toolCount++;
break;
case 'output':
outputCount++;
break;
}
}
const parts: string[] = [];
if (thinkingCount > 0) parts.push(`${thinkingCount} thinking`);
if (toolCount > 0) parts.push(`${toolCount} tool call${toolCount > 1 ? 's' : ''}`);
if (outputCount > 0) parts.push(`${outputCount} output${outputCount > 1 ? 's' : ''}`);
return parts.join(', ') || 'empty';
}
function extractAssistantMessageId(parsed: unknown): string | null {
if (!parsed || typeof parsed !== 'object') return null;
const obj = parsed as Record<string, unknown>;
if (obj.type !== 'assistant') return null;
// Direct format can include id at top-level
if (typeof obj.id === 'string' && obj.id.trim()) return obj.id.trim();
// Wrapped format: { type: "assistant", message: { id, ... } }
const msg = obj.message;
if (msg && typeof msg === 'object') {
const inner = msg as Record<string, unknown>;
if (typeof inner.id === 'string' && inner.id.trim()) return inner.id.trim();
}
return null;
}
/**
* Module-level timestamp cache keyed by line content.
* Ensures re-parses of the same log lines preserve their original timestamps
* instead of getting new Date() each time.
*/
const lineTimestampCache = new Map<string, Date>();
const MAX_TIMESTAMP_CACHE_SIZE = 5000;
/**
* Parses stream-json CLI output lines into structured groups for rich rendering.
*
* Each group represents one or more consecutive assistant messages.
* Non-assistant lines (markers, errors, etc.) are silently skipped.
*/
export function parseStreamJsonToGroups(cliLogsTail: string): StreamJsonGroup[] {
if (!cliLogsTail.trim()) return [];
const lines = cliLogsTail.split('\n');
const groups: StreamJsonGroup[] = [];
let currentItems: AIGroupDisplayItem[] = [];
let currentTimestamp: Date | null = null;
let currentGroupId: string | null = null;
let currentAgentId: string | undefined = undefined;
// Track how many times each messageId / hash has been seen to disambiguate duplicates
const msgIdOccurrences = new Map<string, number>();
const hashOccurrences = new Map<string, number>();
const ensureCurrentTimestamp = (line: string): Date => {
if (currentTimestamp) return currentTimestamp;
// Use stable cached timestamp keyed by line content to survive re-parses
let ts = lineTimestampCache.get(line);
if (!ts) {
ts = new Date();
if (lineTimestampCache.size >= MAX_TIMESTAMP_CACHE_SIZE) {
// Evict oldest entry (first inserted)
const firstKey = lineTimestampCache.keys().next().value!;
lineTimestampCache.delete(firstKey);
}
lineTimestampCache.set(line, ts);
}
currentTimestamp = ts;
return ts;
};
const ensureCurrentGroupId = (
line: string,
parsed: unknown,
lineAgentId: string | undefined
): void => {
if (currentGroupId) return;
currentAgentId = lineAgentId;
const msgId = extractAssistantMessageId(parsed);
if (msgId) {
const occurrence = msgIdOccurrences.get(msgId) ?? 0;
msgIdOccurrences.set(msgId, occurrence + 1);
currentGroupId =
occurrence === 0 ? `stream-group-${msgId}` : `stream-group-${msgId}-${occurrence}`;
return;
}
// Content-hash fallback: deterministic and survives line reordering
const h = stableHash(line);
const occ = hashOccurrences.get(h) ?? 0;
hashOccurrences.set(h, occ + 1);
currentGroupId = occ === 0 ? `stream-group-H${h}` : `stream-group-H${h}-${occ}`;
};
const pushItems = (items: AIGroupDisplayItem[]): void => {
for (const item of items) {
if (item.type !== 'tool') {
currentItems.push(item);
continue;
}
const existingIndex = currentItems.findIndex(
(entry) => entry.type === 'tool' && entry.tool.id === item.tool.id
);
if (existingIndex === -1) {
currentItems.push(item);
} else {
currentItems[existingIndex] = item;
}
}
};
const flushGroup = (): void => {
if (currentItems.length > 0 && currentTimestamp) {
const id = currentGroupId ?? `stream-group-fallback-${groups.length}`;
groups.push({
id,
items: currentItems,
summary: buildGroupSummary(currentItems),
timestamp: currentTimestamp,
agentId: currentAgentId,
});
currentItems = [];
currentTimestamp = null;
currentGroupId = null;
currentAgentId = undefined;
}
};
for (let lineIndex = 0; lineIndex < lines.length; lineIndex++) {
const trimmed = lines[lineIndex].trim();
// Skip empty lines; stream markers break groups
if (!trimmed) continue;
if (trimmed.startsWith('[stdout]') || trimmed.startsWith('[stderr]')) {
flushGroup();
continue;
}
// Try to parse as JSON
let parsed: unknown;
try {
parsed = JSON.parse(trimmed);
} catch {
// Non-JSON line (stderr debug output, truncated data, etc.)
// Show as raw output so the user can see CLI stderr activity.
if (trimmed.length > 0) {
if (!currentTimestamp) currentTimestamp = new Date();
if (!currentGroupId) currentGroupId = `stderr-${groups.length}-${lineIndex}`;
currentItems.push({
type: 'output',
content: trimmed,
timestamp: currentTimestamp,
});
}
continue;
}
const blocks = extractContentBlocks(parsed);
if (!blocks) {
const timestamp = ensureCurrentTimestamp(trimmed);
const codexItems =
codexNativeEventToDisplayItems(parsed, timestamp, lineIndex) ??
codexNativeProjectedSystemToDisplayItems(parsed, timestamp);
if (codexItems && codexItems.length > 0) {
ensureCurrentGroupId(trimmed, parsed, undefined);
pushItems(codexItems);
continue;
}
// Valid JSON but not a displayable log event — flush and skip
flushGroup();
continue;
}
// Extract agentId from top-level (subagent messages have it, lead messages don't)
const lineAgentId =
typeof (parsed as Record<string, unknown>).agentId === 'string'
? ((parsed as Record<string, unknown>).agentId as string)
: undefined;
const timestamp = ensureCurrentTimestamp(trimmed);
ensureCurrentGroupId(trimmed, parsed, lineAgentId);
const items = contentBlocksToDisplayItems(blocks, timestamp, lineIndex);
pushItems(items);
}
// Flush remaining items
flushGroup();
return groups;
}
/**
* Groups consecutive StreamJsonGroups by agentId into SubagentSections.
* Lead groups (no agentId) remain as individual entries.
* Must be called on chronological (oldest-first) groups.
*/
export function groupBySubagent(groups: StreamJsonGroup[]): StreamJsonEntry[] {
const result: StreamJsonEntry[] = [];
const pendingDescriptions: string[] = [];
const agentDescMap = new Map<string, string>();
let currentRun: { agentId: string; groups: StreamJsonGroup[] } | null = null;
const flushRun = (): void => {
if (!currentRun) return;
const desc = agentDescMap.get(currentRun.agentId) ?? 'Subagent';
let toolCount = 0;
for (const g of currentRun.groups) {
for (const item of g.items) {
if (item.type === 'tool') toolCount++;
}
}
// Anchor section ID on first group's stable ID instead of occurrence count
const firstGroupId = currentRun.groups[0]?.id ?? '';
const sectionId = `subagent-${currentRun.agentId}-${stableHash(firstGroupId)}`;
result.push({
type: 'subagent-section',
section: {
id: sectionId,
agentId: currentRun.agentId,
description: desc,
groups: currentRun.groups,
toolCount,
timestamp: currentRun.groups[0].timestamp,
},
});
currentRun = null;
};
for (const group of groups) {
if (!group.agentId) {
// Lead group — check for Agent/Task tool_use and extract description
for (const item of group.items) {
if (item.type === 'tool' && (item.tool.name === 'Agent' || item.tool.name === 'Task')) {
const input = item.tool.input as Record<string, unknown> | undefined;
const desc =
(item.tool.name === 'Agent' && input ? summarizeAgentToolInput(input, 80) : null) ||
(typeof input?.description === 'string' && input.description) ||
'Subagent';
pendingDescriptions.push(desc);
}
}
flushRun();
result.push({ type: 'group', group });
} else {
// Subagent group
if (!agentDescMap.has(group.agentId)) {
agentDescMap.set(group.agentId, pendingDescriptions.shift() ?? 'Subagent');
}
// eslint-disable-next-line @typescript-eslint/prefer-optional-chain -- optional chain narrows to `never` in loop body
if (currentRun && currentRun.agentId === group.agentId) {
currentRun.groups.push(group);
} else {
flushRun();
currentRun = { agentId: group.agentId, groups: [group] };
}
}
}
flushRun();
return result;
}