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// SPDX-License-Identifier: Apache-2.0
/**
* @module Aggregator/ForwardStatementsRegistry
* @description Append-mostly JSONL registry for tracking forward-looking
* statements produced by week-ahead and month-ahead analysis runs. Each row
* records a single statement with its originating run, expected horizon, and
* current status. Subsequent week-ahead / month-ahead Stage A reads open items
* to seed synthesis.
*
* Schema per row:
* {
* id: string — UUID v4 (crypto.randomUUID())
* topic: string — Short topic slug (e.g. "banking-union", "ai-act")
* originatingRunId: string — RUN_ID from the originating workflow
* originatingDate: string — YYYY-MM-DD
* statement: string — The forward-looking statement text
* expectedHorizon: string — YYYY-MM-DD or ISO week (e.g. "2026-W18")
* status: "open" | "implemented" | "superseded" | "abandoned"
* lastObservedDate: string — YYYY-MM-DD of last run that touched this entry
* evidenceRefs: string[] — EP document IDs or procedure IDs supporting the claim
* }
*
* File layout:
* analysis/forward-statements/<YYYY-MM>.jsonl (one file per calendar month)
* analysis/forward-statements/README.md (schema + lifecycle docs — static)
*
* The monthly sharding keeps individual files small (typical plenary generates
* ~5–10 statements per week). Read operations scan every extant JSONL shard,
* with optional result filtering by status, horizonFrom, and horizonTo.
*
* Invocation:
* node scripts/aggregator/forward-statements-registry.js --help
* node scripts/aggregator/forward-statements-registry.js append <json-file-or-stdin>
* node scripts/aggregator/forward-statements-registry.js read [--status open] [--horizon-from YYYY-MM-DD] [--horizon-to YYYY-MM-DD]
* node scripts/aggregator/forward-statements-registry.js update --id <id> --status <status> [--evidence <ref>] [--date <YYYY-MM-DD>]
* node scripts/aggregator/forward-statements-registry.js summary
*/
import crypto from 'node:crypto';
import fs from 'node:fs';
import path from 'node:path';
import process from 'node:process';
const REGISTRY_DIR = path.resolve(process.cwd(), 'analysis/forward-statements');
const VALID_STATUSES = /** @type {const} */ (['open', 'implemented', 'superseded', 'abandoned']);
// ---------------------------------------------------------------------------
// Public helpers (exported for Vitest)
// ---------------------------------------------------------------------------
/**
* Compute the JSONL shard path for a given YYYY-MM-DD date string.
*
* @param {string} dateStr - YYYY-MM-DD date string
* @param {string} [registryDir] - Override registry directory (used in tests)
* @returns {string} Absolute path to the shard file
*/
export function shardPath(dateStr, registryDir) {
const month = dateStr.slice(0, 7); // "YYYY-MM"
return path.join(registryDir ?? REGISTRY_DIR, `${month}.jsonl`);
}
/**
* Parse a single JSONL line into a forward-statement entry. Returns `null`
* when the line is blank or cannot be parsed (corrupt shard lines are skipped
* rather than throwing so a single bad row does not crash the read operation).
*
* @param {string} line - Raw JSONL line
* @returns {Record<string, unknown> | null}
*/
export function parseLine(line) {
const trimmed = line.trim();
if (!trimmed) return null;
try {
return JSON.parse(trimmed);
} catch {
return null;
}
}
/**
* Generate a new UUID v4 string using the Node.js `crypto` module.
*
* @returns {string} UUID v4
*/
export function newId() {
return crypto.randomUUID();
}
/**
* Return true only when a string is a valid calendar date in YYYY-MM-DD form.
*
* @param {unknown} value - Candidate date value
* @returns {boolean} True for valid calendar dates
*/
export function isValidDateString(value) {
if (typeof value !== 'string' || !/^\d{4}-\d{2}-\d{2}$/.test(value)) return false;
const [year, month, day] = value.split('-').map(Number);
const parsed = new Date(Date.UTC(year, month - 1, day));
return (
parsed.getUTCFullYear() === year &&
parsed.getUTCMonth() === month - 1 &&
parsed.getUTCDate() === day
);
}
/**
* Return true only when a string is a valid ISO week reference (`YYYY-Www`).
*
* @param {unknown} value - Candidate ISO week value
* @returns {boolean} True for ISO week 1–53
*/
export function isValidIsoWeekString(value) {
Iif (typeof value !== 'string') return false;
const match = /^(\d{4})-W(\d{2})$/.exec(value);
if (!match) return false;
const week = Number(match[2]);
return week >= 1 && week <= 53;
}
/**
* Validate a candidate forward-statement entry object, returning a list of
* validation error strings. An empty array means the entry is valid.
*
* @param {unknown} entry - Candidate entry
* @returns {string[]} Validation errors (empty when valid)
*/
export function validateEntry(entry) {
const errors = [];
if (!entry || typeof entry !== 'object') {
return ['Entry must be a non-null object'];
}
const e = /** @type {Record<string, unknown>} */ (entry);
if (typeof e.topic !== 'string' || !e.topic.trim()) errors.push('topic is required');
Iif (typeof e.originatingRunId !== 'string' || !e.originatingRunId.trim())
errors.push('originatingRunId is required');
if (!isValidDateString(e.originatingDate))
errors.push('originatingDate must be YYYY-MM-DD');
Iif (typeof e.statement !== 'string' || !e.statement.trim())
errors.push('statement is required');
if (
typeof e.expectedHorizon !== 'string' ||
(!isValidDateString(e.expectedHorizon) && !isValidIsoWeekString(e.expectedHorizon))
)
errors.push('expectedHorizon must be a valid YYYY-MM-DD date or ISO week YYYY-Www');
if (!VALID_STATUSES.includes(/** @type {never} */ (e.status)))
errors.push(`status must be one of: ${VALID_STATUSES.join(', ')}`);
if (!Array.isArray(e.evidenceRefs)) errors.push('evidenceRefs must be an array');
return errors;
}
/**
* Append one or more forward-statement entries to the appropriate monthly
* JSONL shards. Each entry receives a generated `id` and
* `lastObservedDate` (set to `originatingDate`) if not already present.
*
* @param {unknown[]} entries - Candidate entries to append
* @param {string} [registryDir] - Override registry directory (used in tests)
* @returns {{ written: number; errors: string[] }} Summary
*/
export function appendEntries(entries, registryDir) {
const dir = registryDir ?? REGISTRY_DIR;
fs.mkdirSync(dir, { recursive: true });
let written = 0;
const errors = [];
for (const raw of entries) {
const entry = /** @type {Record<string, unknown>} */ (
raw && typeof raw === 'object' ? { .../** @type {object} */ (raw) } : {}
);
// Fill in generated fields
if (!entry.id || typeof entry.id !== 'string') entry.id = newId();
if (!entry.status) entry.status = 'open';
Iif (!Array.isArray(entry.evidenceRefs)) entry.evidenceRefs = [];
Eif (!entry.lastObservedDate) entry.lastObservedDate = entry.originatingDate;
const errs = validateEntry(entry);
if (errs.length > 0) {
errors.push(`Entry "${entry.topic ?? '(no topic)'}" invalid: ${errs.join('; ')}`);
continue;
}
const shard = shardPath(/** @type {string} */ (entry.originatingDate), dir);
fs.appendFileSync(shard, JSON.stringify(entry) + '\n', 'utf8');
written += 1;
}
return { written, errors };
}
/**
* Read all forward-statement entries from every JSONL shard, with optional
* filters.
*
* @param {object} [opts] - Filter options
* @param {string} [opts.status] - Filter by status (e.g. "open")
* @param {string} [opts.horizonFrom] - ISO date; entries with expectedHorizon < this are excluded
* @param {string} [opts.horizonTo] - ISO date; entries with expectedHorizon > this are excluded
* @param {string} [opts.registryDir] - Override registry directory (used in tests)
* @returns {Record<string, unknown>[]} All matching entries
*/
export function readEntries(opts) {
const dir = opts?.registryDir ?? REGISTRY_DIR;
if (!fs.existsSync(dir)) return [];
const shards = fs
.readdirSync(dir)
.filter((f) => f.endsWith('.jsonl'))
.sort();
/** @type {Map<string, Record<string, unknown>>} */
const entriesById = new Map();
for (const shard of shards) {
const content = fs.readFileSync(path.join(dir, shard), 'utf8');
for (const line of content.split('\n')) {
const entry = parseLine(line);
if (!entry) continue;
Iif (typeof entry.id !== 'string' || entry.id.length === 0) {
process.stderr.write(
`Skipping forward-statement entry with missing id in shard "${shard}"\n`,
);
continue;
}
entriesById.set(entry.id, entry);
}
}
const results = [];
const hasHorizonFilter = Boolean(opts?.horizonFrom || opts?.horizonTo);
for (const entry of entriesById.values()) {
if (opts?.status && entry.status !== opts.status) continue;
let horizon;
if (hasHorizonFilter) {
if (typeof entry.expectedHorizon !== 'string') {
process.stderr.write(
`Skipping forward-statement entry "${entry.id}" with missing expectedHorizon for horizon-filtered read\n`,
);
continue;
}
try {
// Normalise ISO week to YYYY-MM-DD (first day of week) for comparison.
horizon = normaliseHorizon(entry.expectedHorizon);
} catch (error) {
process.stderr.write(
`Skipping forward-statement entry "${entry.id}" with invalid expectedHorizon ` +
`"${entry.expectedHorizon}": ${error instanceof Error ? error.message : String(error)}\n`,
);
continue;
}
}
if (opts?.horizonFrom && typeof horizon === 'string' && horizon < opts.horizonFrom) continue;
if (opts?.horizonTo && typeof horizon === 'string' && horizon > opts.horizonTo) continue;
results.push(entry);
}
return results;
}
/**
* Update an existing entry's status, lastObservedDate, and optionally append
* an evidence reference. The update is written as a new JSONL line in the
* **current month's** shard (append-mostly pattern — old lines are kept for
* audit trail; readers use the last occurrence of each `id`).
*
* @param {object} opts - Update options
* @param {string} opts.id - ID of the entry to update
* @param {string} opts.status - New status
* @param {string} [opts.evidence] - Evidence reference to append
* @param {string} [opts.date] - lastObservedDate (defaults to today UTC)
* @param {string} [opts.registryDir] - Override registry directory (used in tests)
* @returns {{ updated: boolean; reason?: string }} Result
*/
export function updateEntry(opts) {
const dir = opts?.registryDir ?? REGISTRY_DIR;
if (!VALID_STATUSES.includes(/** @type {never} */ (opts.status))) {
return { updated: false, reason: `Invalid status: ${opts.status}` };
}
// Find the latest version of the entry
const all = readEntries({ registryDir: dir });
// Build a map keyed by id — last occurrence wins (append-mostly semantics)
const byId = new Map();
for (const e of all) {
Eif (typeof e.id === 'string') byId.set(e.id, e);
}
const existing = byId.get(opts.id);
if (!existing) {
return { updated: false, reason: `No entry found with id=${opts.id}` };
}
const today = opts.date ?? new Date().toISOString().slice(0, 10);
const existingRefs = Array.isArray(existing.evidenceRefs) ? existing.evidenceRefs : [];
const updatedRefs = opts.evidence
? Array.from(new Set([...existingRefs, opts.evidence]))
: [...existingRefs];
const updated = {
...existing,
status: opts.status,
lastObservedDate: today,
evidenceRefs: updatedRefs,
};
fs.mkdirSync(dir, { recursive: true });
const shard = shardPath(today, dir);
fs.appendFileSync(shard, JSON.stringify(updated) + '\n', 'utf8');
return { updated: true };
}
/**
* Produce a human-readable summary string of all entries, grouped by status.
* Useful for Stage A manifests and `--summary` CLI.
*
* @param {string} [registryDir] - Override registry directory (used in tests)
* @returns {string} Formatted summary
*/
export function buildSummary(registryDir) {
const all = readEntries({ registryDir });
const byStatus = {};
for (const status of VALID_STATUSES) {
byStatus[status] = all.filter((e) => e.status === status).length;
}
const lines = [
`## Forward-Statements Registry Summary`,
`Total entries: ${all.length}`,
...VALID_STATUSES.map((s) => ` ${s}: ${byStatus[s]}`),
];
return lines.join('\n');
}
/**
* Generate an array of EP plenary sitting IDs for consecutive session days.
* The format is `MTG-PL-YYYY-MM-DD` — the canonical sitting ID pattern used
* by the EP MCP `get_meeting_foreseen_activities` endpoint.
*
* @param {string} startDateStr - YYYY-MM-DD date of the first session day
* @param {number} numDays - Number of consecutive session days (typically 4 for Strasbourg, 2 for Brussels mini)
* @returns {string[]} Array of sitting IDs
*/
export function generateSessionDayIds(startDateStr, numDays) {
const [year, month, day] = startDateStr.split('-').map(Number);
const startMs = Date.UTC(year, month - 1, day);
const ids = [];
for (let i = 0; i < numDays; i++) {
const ms = startMs + i * 24 * 60 * 60 * 1000;
const d = new Date(ms);
const y = d.getUTCFullYear();
const m = String(d.getUTCMonth() + 1).padStart(2, '0');
const dd = String(d.getUTCDate()).padStart(2, '0');
ids.push(`MTG-PL-${y}-${m}-${dd}`);
}
return ids;
}
/**
* Return `true` when the given date string falls on a Monday (UTC).
* Used to determine whether the Monday urgency motion sweep should run.
*
* @param {string} dateStr - YYYY-MM-DD
* @returns {boolean}
*/
export function isMondayRun(dateStr) {
const [y, m, d] = dateStr.split('-').map(Number);
return new Date(Date.UTC(y, m - 1, d)).getUTCDay() === 1;
}
// ---------------------------------------------------------------------------
// Internal helpers
// ---------------------------------------------------------------------------
/**
* Normalise an ISO week string (`YYYY-Www`) to its Monday date as `YYYY-MM-DD`
* for lexicographic horizon comparisons. Valid `YYYY-MM-DD` dates pass through
* unchanged.
*
* @param {string} horizon - expectedHorizon value
* @returns {string} YYYY-MM-DD date string
* @throws {Error} When the horizon is not a valid `YYYY-MM-DD` date or ISO week
*/
export function normaliseHorizon(horizon) {
if (isValidDateString(horizon)) return horizon;
if (/^\d{4}-\d{2}-\d{2}$/.test(horizon)) {
throw new Error(`Invalid calendar date in expectedHorizon: "${horizon}"`);
}
const isoWeek = /^(\d{4})-W(\d{2})$/.exec(horizon);
if (!isoWeek) {
throw new Error(`expectedHorizon must be YYYY-MM-DD or YYYY-Www: "${horizon}"`);
}
const year = Number(isoWeek[1]);
const week = Number(isoWeek[2]);
if (week < 1 || week > 53) {
throw new Error(`Invalid ISO week number: ${week} in "${horizon}" (must be 1–53)`);
}
// ISO week 1 starts on the Monday of the week containing Jan 4.
const jan4 = new Date(Date.UTC(year, 0, 4));
const monday = new Date(jan4);
// Move back to the Monday of the Jan-4 week, then forward by (week - 1) weeks.
monday.setUTCDate(jan4.getUTCDate() - ((jan4.getUTCDay() + 6) % 7) + (week - 1) * 7);
return monday.toISOString().slice(0, 10);
}
// ---------------------------------------------------------------------------
// CLI entry point
// ---------------------------------------------------------------------------
/**
* Parse and dispatch CLI sub-commands.
*
* @param {string[]} argv - `process.argv` (slice from index 2 for args)
*/
export function cli(argv) {
const [cmd, ...rest] = argv;
if (!cmd || cmd === '--help' || cmd === '-h') {
process.stdout.write(
[
'Usage: node scripts/aggregator/forward-statements-registry.js <command> [options]',
'',
'Commands:',
' append [--file <path>] Append entries from a JSON array file (or stdin)',
' read [--status open|implemented|superseded|abandoned]',
' [--horizon-from YYYY-MM-DD] [--horizon-to YYYY-MM-DD]',
' Read and print matching entries as JSON array',
' update --id <id> --status <status> [--evidence <ref>] [--date YYYY-MM-DD]',
' Update an existing entry',
' summary Print status counts',
'',
].join('\n'),
);
process.exit(0);
}
if (cmd === 'append') {
const fileFlag = rest.indexOf('--file');
let rawJson;
if (fileFlag !== -1 && rest[fileFlag + 1]) {
rawJson = fs.readFileSync(rest[fileFlag + 1], 'utf8');
} else {
rawJson = fs.readFileSync(0, 'utf8');
}
const entries = JSON.parse(rawJson);
const result = appendEntries(Array.isArray(entries) ? entries : [entries]);
process.stdout.write(JSON.stringify(result, null, 2) + '\n');
if (result.errors.length > 0) process.exit(1);
return;
}
if (cmd === 'read') {
const statusFlag = rest.indexOf('--status');
const fromFlag = rest.indexOf('--horizon-from');
const toFlag = rest.indexOf('--horizon-to');
const opts = {};
if (statusFlag !== -1 && rest[statusFlag + 1]) opts.status = rest[statusFlag + 1];
if (fromFlag !== -1 && rest[fromFlag + 1]) opts.horizonFrom = rest[fromFlag + 1];
if (toFlag !== -1 && rest[toFlag + 1]) opts.horizonTo = rest[toFlag + 1];
process.stdout.write(JSON.stringify(readEntries(opts), null, 2) + '\n');
return;
}
if (cmd === 'update') {
const parseFlag = (flag) => {
const idx = rest.indexOf(flag);
return idx !== -1 ? rest[idx + 1] : undefined;
};
const id = parseFlag('--id');
const status = parseFlag('--status');
const evidence = parseFlag('--evidence');
const date = parseFlag('--date');
if (!id || !status) {
process.stderr.write('update requires --id and --status\n');
process.exit(2);
}
const result = updateEntry({ id, status, evidence, date });
process.stdout.write(JSON.stringify(result, null, 2) + '\n');
if (!result.updated) process.exit(1);
return;
}
if (cmd === 'summary') {
process.stdout.write(buildSummary() + '\n');
return;
}
process.stderr.write(`Unknown command: ${cmd}\n`);
process.exit(2);
}
// Run CLI when invoked directly
Iif (
process.argv[1] &&
(process.argv[1].endsWith('forward-statements-registry.js') ||
process.argv[1].endsWith('forward-statements-registry'))
) {
cli(process.argv.slice(2));
}
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