#!/usr/bin/env node
// migrate-ai-foundry.mjs — One-shot migration: back up data/, remap registry
// keys ai-foundry -> foundry (+ 2 probed DEAD targets), migrate reserved schema
// fields, write atomically. Idempotent: re-running finds nothing to remap.
// Usage: node migrate-ai-foundry.mjs

import { dirname, join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { loadRegistry, saveRegistry } from './lib/registry-io.mjs';
import { backupDir } from './lib/backup.mjs';
import { migrateRegistry } from './lib/registry-migrate.mjs';

const __dirname = dirname(fileURLToPath(import.meta.url));
const DATA_DIR = join(__dirname, 'data');
const PLUGIN_ROOT = join(__dirname, '..', '..');
const BACKUP_ROOT = join(PLUGIN_ROOT, '.kb-backup');

const registry = loadRegistry(DATA_DIR);
const before = Object.keys(registry.urls).length;

const { backupPath } = backupDir(DATA_DIR, BACKUP_ROOT);
console.log(`Backed up data/ -> ${backupPath}`);

const { registry: migrated, stats } = migrateRegistry(registry);
const after = Object.keys(migrated.urls).length;

saveRegistry(migrated, DATA_DIR);

const remainingAiFoundry = Object.keys(migrated.urls)
  .filter((u) => u.includes('/azure/ai-foundry/')).length;

console.log('=== ai-foundry -> foundry remap ===');
console.log(`URLs: ${before} -> ${after} (collisions merged: ${stats.collisions})`);
console.log(`Remapped: ${stats.remapped} (DEAD explicit targets: ${stats.deadRemapped})`);
console.log(`Remaining ai-foundry keys: ${remainingAiFoundry} (expect 0)`);