feat(timeline): implement TimelineService for building and formatting timeline items
- Extracted timeline-related functionality from mcp-server.ts to a dedicated TimelineService class. - Added methods to build, filter, and format timeline items based on observations, sessions, and prompts. - Introduced interfaces for TimelineItem and TimelineData to standardize data structures. - Implemented sorting and grouping of timeline items by date, with markdown formatting for output. - Included utility methods for date and time formatting, as well as token estimation.
This commit is contained in:
Alex Newman
@@ -729,6 +729,79 @@ export class ChromaSync {
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}
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}
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/**
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* Query Chroma collection for semantic search
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* Used by SearchManager for vector-based search
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*/
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async queryChroma(
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query: string,
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limit: number,
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whereFilter?: Record<string, any>
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): Promise<{ ids: number[]; distances: number[]; metadatas: any[] }> {
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await this.ensureConnection();
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if (!this.client) {
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throw new Error('Chroma client not initialized');
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}
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const whereStringified = whereFilter ? JSON.stringify(whereFilter) : undefined;
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const arguments_obj = {
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collection_name: this.collectionName,
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query_texts: [query],
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n_results: limit,
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include: ['documents', 'metadatas', 'distances'],
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where: whereStringified
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};
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const result = await this.client.callTool({
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name: 'chroma_query_documents',
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arguments: arguments_obj
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});
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const resultText = result.content[0]?.text || '';
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// Parse JSON response
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let parsed: any;
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try {
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parsed = JSON.parse(resultText);
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} catch (error) {
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logger.error('CHROMA_SYNC', 'Failed to parse Chroma response', { project: this.project }, error as Error);
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return { ids: [], distances: [], metadatas: [] };
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}
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// Extract unique IDs from document IDs
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const ids: number[] = [];
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const docIds = parsed.ids?.[0] || [];
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for (const docId of docIds) {
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// Extract sqlite_id from document ID (supports three formats):
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// - obs_{id}_narrative, obs_{id}_fact_0, etc (observations)
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// - summary_{id}_request, summary_{id}_learned, etc (session summaries)
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// - prompt_{id} (user prompts)
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const obsMatch = docId.match(/obs_(\d+)_/);
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const summaryMatch = docId.match(/summary_(\d+)_/);
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const promptMatch = docId.match(/prompt_(\d+)/);
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let sqliteId: number | null = null;
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if (obsMatch) {
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sqliteId = parseInt(obsMatch[1], 10);
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} else if (summaryMatch) {
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sqliteId = parseInt(summaryMatch[1], 10);
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} else if (promptMatch) {
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sqliteId = parseInt(promptMatch[1], 10);
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}
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if (sqliteId !== null && !ids.includes(sqliteId)) {
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ids.push(sqliteId);
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}
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}
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const distances = parsed.distances?.[0] || [];
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const metadatas = parsed.metadatas?.[0] || [];
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return { ids, distances, metadatas };
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}
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/**
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* Close the Chroma client connection
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*/
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@@ -169,16 +169,16 @@ export class WorkerService {
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// Initialize database (once, stays open)
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await this.dbManager.initialize();
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// Connect to MCP search server
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const searchServerPath = path.join(__dirname, '..', '..', 'plugin', 'scripts', 'search-server.cjs');
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// Connect to MCP server
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const mcpServerPath = path.join(__dirname, '..', '..', 'plugin', 'scripts', 'mcp-server.cjs');
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const transport = new StdioClientTransport({
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command: 'node',
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args: [searchServerPath],
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args: [mcpServerPath],
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env: process.env
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});
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await this.mcpClient.connect(transport);
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logger.success('WORKER', 'Connected to MCP search server');
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logger.success('WORKER', 'Connected to MCP server');
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}
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/**
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@@ -188,7 +188,7 @@ export class WorkerService {
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// Shutdown all active sessions
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await this.sessionManager.shutdownAll();
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// Close MCP client connection (terminates search server process)
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// Close MCP client connection (terminates MCP server process)
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if (this.mcpClient) {
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try {
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await this.mcpClient.close();
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@@ -0,0 +1,233 @@
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/**
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* FormattingService - Handles all formatting logic for search results
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* Extracted from mcp-server.ts to follow worker service organization pattern
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*/
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import { ObservationSearchResult, SessionSummarySearchResult, UserPromptSearchResult } from '../sqlite/types.js';
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export type FormatType = 'index' | 'full';
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export class FormattingService {
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/**
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* Format search tips footer
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*/
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formatSearchTips(): string {
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return `\n---
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💡 Search Strategy:
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ALWAYS search with index format FIRST to get an overview and identify relevant results.
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This is critical for token efficiency - index format uses ~10x fewer tokens than full format.
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Search workflow:
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1. Initial search: Use default (index) format to see titles, dates, and sources
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2. Review results: Identify which items are most relevant to your needs
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3. Deep dive: Only then use format: "full" on specific items of interest
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4. Narrow down: Use filters (type, dateStart/dateEnd, concepts, files) to refine results
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Other tips:
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• To search by concept: Use find_by_concept tool
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• To browse by type: Use find_by_type with ["decision", "feature", etc.]
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• To sort by date: Use orderBy: "date_desc" or "date_asc"`;
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}
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/**
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* Format observation as index entry (title, date, ID only)
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*/
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formatObservationIndex(obs: ObservationSearchResult, index: number): string {
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const title = obs.title || `Observation #${obs.id}`;
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const date = new Date(obs.created_at_epoch).toLocaleString();
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const type = obs.type ? `[${obs.type}]` : '';
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return `${index + 1}. ${type} ${title}
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Date: ${date}
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Source: claude-mem://observation/${obs.id}`;
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}
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/**
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* Format session summary as index entry (title, date, ID only)
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*/
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formatSessionIndex(session: SessionSummarySearchResult, index: number): string {
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const title = session.request || `Session ${session.sdk_session_id?.substring(0, 8) || 'unknown'}`;
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const date = new Date(session.created_at_epoch).toLocaleString();
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return `${index + 1}. ${title}
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Date: ${date}
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Source: claude-mem://session/${session.sdk_session_id}`;
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}
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/**
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* Format user prompt as index entry (full text - don't truncate context!)
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*/
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formatUserPromptIndex(prompt: UserPromptSearchResult, index: number): string {
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const date = new Date(prompt.created_at_epoch).toLocaleString();
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return `${index + 1}. "${prompt.prompt_text}"
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Date: ${date} | Prompt #${prompt.prompt_number}
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Source: claude-mem://user-prompt/${prompt.id}`;
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}
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/**
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* Format observation as text content with metadata
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*/
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formatObservationResult(obs: ObservationSearchResult): string {
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const title = obs.title || `Observation #${obs.id}`;
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// Build content from available fields
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const contentParts: string[] = [];
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contentParts.push(`## ${title}`);
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contentParts.push(`*Source: claude-mem://observation/${obs.id}*`);
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contentParts.push('');
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if (obs.subtitle) {
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contentParts.push(`**${obs.subtitle}**`);
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contentParts.push('');
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}
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if (obs.narrative) {
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contentParts.push(obs.narrative);
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contentParts.push('');
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}
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if (obs.text) {
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contentParts.push(obs.text);
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contentParts.push('');
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}
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// Add metadata
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const metadata: string[] = [];
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metadata.push(`Type: ${obs.type}`);
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if (obs.facts) {
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try {
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const facts = JSON.parse(obs.facts);
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if (facts.length > 0) {
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metadata.push(`Facts: ${facts.join('; ')}`);
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}
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} catch {}
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}
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if (obs.concepts) {
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try {
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const concepts = JSON.parse(obs.concepts);
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if (concepts.length > 0) {
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metadata.push(`Concepts: ${concepts.join(', ')}`);
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}
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} catch {}
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}
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if (obs.files_read || obs.files_modified) {
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const files: string[] = [];
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if (obs.files_read) {
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try {
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files.push(...JSON.parse(obs.files_read));
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} catch {}
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}
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if (obs.files_modified) {
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try {
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files.push(...JSON.parse(obs.files_modified));
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} catch {}
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}
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if (files.length > 0) {
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metadata.push(`Files: ${[...new Set(files)].join(', ')}`);
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}
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}
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if (metadata.length > 0) {
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contentParts.push('---');
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contentParts.push(metadata.join(' | '));
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}
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// Add date
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const date = new Date(obs.created_at_epoch).toLocaleString();
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contentParts.push('');
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contentParts.push(`---`);
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contentParts.push(`Date: ${date}`);
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return contentParts.join('\n');
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}
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/**
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* Format session summary as text content with metadata
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*/
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formatSessionResult(session: SessionSummarySearchResult): string {
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const title = session.request || `Session ${session.sdk_session_id?.substring(0, 8) || 'unknown'}`;
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// Build content from available fields
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const contentParts: string[] = [];
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contentParts.push(`## ${title}`);
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contentParts.push(`*Source: claude-mem://session/${session.sdk_session_id}*`);
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contentParts.push('');
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if (session.completed) {
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contentParts.push(`**Completed:** ${session.completed}`);
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contentParts.push('');
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}
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if (session.learned) {
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contentParts.push(`**Learned:** ${session.learned}`);
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contentParts.push('');
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}
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if (session.investigated) {
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contentParts.push(`**Investigated:** ${session.investigated}`);
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contentParts.push('');
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}
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if (session.next_steps) {
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contentParts.push(`**Next Steps:** ${session.next_steps}`);
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contentParts.push('');
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}
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if (session.notes) {
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contentParts.push(`**Notes:** ${session.notes}`);
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contentParts.push('');
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}
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// Add metadata
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const metadata: string[] = [];
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if (session.files_read || session.files_edited) {
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const files: string[] = [];
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if (session.files_read) {
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try {
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files.push(...JSON.parse(session.files_read));
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} catch {}
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}
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if (session.files_edited) {
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try {
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files.push(...JSON.parse(session.files_edited));
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} catch {}
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}
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if (files.length > 0) {
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metadata.push(`Files: ${[...new Set(files)].join(', ')}`);
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}
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}
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const date = new Date(session.created_at_epoch).toLocaleDateString();
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metadata.push(`Date: ${date}`);
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if (metadata.length > 0) {
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contentParts.push('---');
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contentParts.push(metadata.join(' | '));
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}
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return contentParts.join('\n');
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}
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/**
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* Format user prompt as text content with metadata
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*/
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formatUserPromptResult(prompt: UserPromptSearchResult): string {
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const contentParts: string[] = [];
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contentParts.push(`## User Prompt #${prompt.prompt_number}`);
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contentParts.push(`*Source: claude-mem://user-prompt/${prompt.id}*`);
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contentParts.push('');
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contentParts.push(prompt.prompt_text);
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contentParts.push('');
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contentParts.push('---');
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const date = new Date(prompt.created_at_epoch).toLocaleString();
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contentParts.push(`Date: ${date}`);
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return contentParts.join('\n');
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}
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}
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,270 @@
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/**
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* TimelineService - Handles timeline building, filtering, and formatting
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* Extracted from mcp-server.ts to follow worker service organization pattern
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*/
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import { ObservationSearchResult, SessionSummarySearchResult, UserPromptSearchResult } from '../sqlite/types.js';
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/**
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* Timeline item for unified chronological display
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*/
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export interface TimelineItem {
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type: 'observation' | 'session' | 'prompt';
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data: ObservationSearchResult | SessionSummarySearchResult | UserPromptSearchResult;
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epoch: number;
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}
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export interface TimelineData {
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observations: ObservationSearchResult[];
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sessions: SessionSummarySearchResult[];
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prompts: UserPromptSearchResult[];
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}
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export class TimelineService {
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/**
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* Build timeline items from observations, sessions, and prompts
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*/
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buildTimeline(data: TimelineData): TimelineItem[] {
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const items: TimelineItem[] = [
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...data.observations.map(obs => ({ type: 'observation' as const, data: obs, epoch: obs.created_at_epoch })),
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...data.sessions.map(sess => ({ type: 'session' as const, data: sess, epoch: sess.created_at_epoch })),
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...data.prompts.map(prompt => ({ type: 'prompt' as const, data: prompt, epoch: prompt.created_at_epoch }))
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];
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items.sort((a, b) => a.epoch - b.epoch);
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return items;
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}
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/**
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* Filter timeline items to respect depth_before/depth_after window around anchor
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*/
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filterByDepth(
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items: TimelineItem[],
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anchorId: number | string,
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anchorEpoch: number,
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depth_before: number,
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depth_after: number
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): TimelineItem[] {
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if (items.length === 0) return items;
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let anchorIndex = -1;
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if (typeof anchorId === 'number') {
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anchorIndex = items.findIndex(item => item.type === 'observation' && (item.data as ObservationSearchResult).id === anchorId);
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} else if (typeof anchorId === 'string' && anchorId.startsWith('S')) {
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const sessionNum = parseInt(anchorId.slice(1), 10);
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anchorIndex = items.findIndex(item => item.type === 'session' && (item.data as SessionSummarySearchResult).id === sessionNum);
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} else {
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// Timestamp anchor - find closest item
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anchorIndex = items.findIndex(item => item.epoch >= anchorEpoch);
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if (anchorIndex === -1) anchorIndex = items.length - 1;
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}
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if (anchorIndex === -1) return items;
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const startIndex = Math.max(0, anchorIndex - depth_before);
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const endIndex = Math.min(items.length, anchorIndex + depth_after + 1);
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return items.slice(startIndex, endIndex);
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}
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/**
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* Format timeline items as markdown with grouped days and tables
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*/
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formatTimeline(
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items: TimelineItem[],
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anchorId: number | string | null,
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query?: string,
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depth_before?: number,
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depth_after?: number
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): string {
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if (items.length === 0) {
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return query
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? `Found observation matching "${query}", but no timeline context available.`
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: 'No timeline items found';
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}
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const lines: string[] = [];
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// Header
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if (query && anchorId) {
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const anchorObs = items.find(item => item.type === 'observation' && (item.data as ObservationSearchResult).id === anchorId);
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const anchorTitle = anchorObs ? ((anchorObs.data as ObservationSearchResult).title || 'Untitled') : 'Unknown';
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lines.push(`# Timeline for query: "${query}"`);
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lines.push(`**Anchor:** Observation #${anchorId} - ${anchorTitle}`);
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} else if (anchorId) {
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lines.push(`# Timeline around anchor: ${anchorId}`);
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} else {
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lines.push(`# Timeline`);
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}
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if (depth_before !== undefined && depth_after !== undefined) {
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lines.push(`**Window:** ${depth_before} records before → ${depth_after} records after | **Items:** ${items.length}`);
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} else {
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lines.push(`**Items:** ${items.length}`);
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}
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lines.push('');
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// Legend
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lines.push(`**Legend:** 🎯 session-request | 🔴 bugfix | 🟣 feature | 🔄 refactor | ✅ change | 🔵 discovery | 🧠 decision`);
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lines.push('');
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// Group by day
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const dayMap = new Map<string, TimelineItem[]>();
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for (const item of items) {
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const day = this.formatDate(item.epoch);
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if (!dayMap.has(day)) {
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dayMap.set(day, []);
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}
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dayMap.get(day)!.push(item);
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}
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// Sort days chronologically
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const sortedDays = Array.from(dayMap.entries()).sort((a, b) => {
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const aDate = new Date(a[0]).getTime();
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const bDate = new Date(b[0]).getTime();
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return aDate - bDate;
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});
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// Render each day
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for (const [day, dayItems] of sortedDays) {
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lines.push(`### ${day}`);
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lines.push('');
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let currentFile: string | null = null;
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let lastTime = '';
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let tableOpen = false;
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for (const item of dayItems) {
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const isAnchor = (
|
||||
(typeof anchorId === 'number' && item.type === 'observation' && (item.data as ObservationSearchResult).id === anchorId) ||
|
||||
(typeof anchorId === 'string' && anchorId.startsWith('S') && item.type === 'session' && `S${(item.data as SessionSummarySearchResult).id}` === anchorId)
|
||||
);
|
||||
|
||||
if (item.type === 'session') {
|
||||
if (tableOpen) {
|
||||
lines.push('');
|
||||
tableOpen = false;
|
||||
currentFile = null;
|
||||
lastTime = '';
|
||||
}
|
||||
|
||||
const sess = item.data as SessionSummarySearchResult;
|
||||
const title = sess.request || 'Session summary';
|
||||
const link = `claude-mem://session-summary/${sess.id}`;
|
||||
const marker = isAnchor ? ' ← **ANCHOR**' : '';
|
||||
|
||||
lines.push(`**🎯 #S${sess.id}** ${title} (${this.formatDateTime(item.epoch)}) [→](${link})${marker}`);
|
||||
lines.push('');
|
||||
} else if (item.type === 'prompt') {
|
||||
if (tableOpen) {
|
||||
lines.push('');
|
||||
tableOpen = false;
|
||||
currentFile = null;
|
||||
lastTime = '';
|
||||
}
|
||||
|
||||
const prompt = item.data as UserPromptSearchResult;
|
||||
const truncated = prompt.prompt_text.length > 100 ? prompt.prompt_text.substring(0, 100) + '...' : prompt.prompt_text;
|
||||
|
||||
lines.push(`**💬 User Prompt #${prompt.prompt_number}** (${this.formatDateTime(item.epoch)})`);
|
||||
lines.push(`> ${truncated}`);
|
||||
lines.push('');
|
||||
} else if (item.type === 'observation') {
|
||||
const obs = item.data as ObservationSearchResult;
|
||||
const file = 'General';
|
||||
|
||||
if (file !== currentFile) {
|
||||
if (tableOpen) {
|
||||
lines.push('');
|
||||
}
|
||||
|
||||
lines.push(`**${file}**`);
|
||||
lines.push(`| ID | Time | T | Title | Tokens |`);
|
||||
lines.push(`|----|------|---|-------|--------|`);
|
||||
|
||||
currentFile = file;
|
||||
tableOpen = true;
|
||||
lastTime = '';
|
||||
}
|
||||
|
||||
const icon = this.getTypeIcon(obs.type);
|
||||
const time = this.formatTime(item.epoch);
|
||||
const title = obs.title || 'Untitled';
|
||||
const tokens = this.estimateTokens(obs.narrative);
|
||||
|
||||
const showTime = time !== lastTime;
|
||||
const timeDisplay = showTime ? time : '″';
|
||||
lastTime = time;
|
||||
|
||||
const anchorMarker = isAnchor ? ' ← **ANCHOR**' : '';
|
||||
lines.push(`| #${obs.id} | ${timeDisplay} | ${icon} | ${title}${anchorMarker} | ~${tokens} |`);
|
||||
}
|
||||
}
|
||||
|
||||
if (tableOpen) {
|
||||
lines.push('');
|
||||
}
|
||||
}
|
||||
|
||||
return lines.join('\n');
|
||||
}
|
||||
|
||||
/**
|
||||
* Get icon for observation type
|
||||
*/
|
||||
private getTypeIcon(type: string): string {
|
||||
switch (type) {
|
||||
case 'bugfix': return '🔴';
|
||||
case 'feature': return '🟣';
|
||||
case 'refactor': return '🔄';
|
||||
case 'change': return '✅';
|
||||
case 'discovery': return '🔵';
|
||||
case 'decision': return '🧠';
|
||||
default: return '•';
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Format date for grouping (e.g., "Dec 7, 2025")
|
||||
*/
|
||||
private formatDate(epochMs: number): string {
|
||||
const date = new Date(epochMs);
|
||||
return date.toLocaleString('en-US', {
|
||||
month: 'short',
|
||||
day: 'numeric',
|
||||
year: 'numeric'
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Format time (e.g., "6:30 PM")
|
||||
*/
|
||||
private formatTime(epochMs: number): string {
|
||||
const date = new Date(epochMs);
|
||||
return date.toLocaleString('en-US', {
|
||||
hour: 'numeric',
|
||||
minute: '2-digit',
|
||||
hour12: true
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Format date and time (e.g., "Dec 7, 6:30 PM")
|
||||
*/
|
||||
private formatDateTime(epochMs: number): string {
|
||||
const date = new Date(epochMs);
|
||||
return date.toLocaleString('en-US', {
|
||||
month: 'short',
|
||||
day: 'numeric',
|
||||
hour: 'numeric',
|
||||
minute: '2-digit',
|
||||
hour12: true
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Estimate tokens from text length (~4 chars per token)
|
||||
*/
|
||||
private estimateTokens(text: string | null): number {
|
||||
if (!text) return 0;
|
||||
return Math.ceil(text.length / 4);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user