#!/usr/bin/env node
/**
 * generate-shell-dev-wallets.mjs — bundle every `.chipnet-keys-*.json` in the
 * project root into a TS module the Capacitor shell imports. That module fuels
 * the in-shell Wallet Picker (Settings → Wallets and the Onboarding shortcut)
 * so the shell is portable across all your dev wallets with one click — no
 * WIF copy/paste, no re-seeding.
 *
 * Output: shells/app/src/devWallets.ts
 *
 * Re-run this script after generating new wallets (scripts/generate-addresses.mjs)
 * so the picker sees them.
 *
 * !!! CHIPNET / DEV ONLY !!! The emitted module carries WIFs in plaintext. It is
 * gitignored. Never run against mainnet keys.
 */
import { readFileSync, readdirSync, writeFileSync, mkdirSync } from 'node:fs';
import { join, dirname } from 'node:path';

const ROOT = join(import.meta.dirname, '..');
const OUT = join(ROOT, 'shells', 'app', 'src', 'devWallets.ts');

function discover() {
  return readdirSync(ROOT)
    .filter((f) => /^\.chipnet-keys(-[a-z0-9]+)?\.json$/.test(f))
    .map((f) => {
      const m = /^\.chipnet-keys(?:-([a-z0-9]+))?\.json$/.exec(f);
      const label = m?.[1] ? m[1].toUpperCase() : 'A';
      return { label, file: f };
    })
    .sort((a, b) => a.label.localeCompare(b.label));
}

function escapeStringLiteral(s) {
  return s.replace(/\\/g, '\\\\').replace(/'/g, "\\'");
}

function main() {
  const wallets = discover();
  if (wallets.length === 0) {
    console.error('No .chipnet-keys*.json files found — nothing to bundle.');
    process.exit(1);
  }

  const records = wallets.map(({ label, file }) => {
    const { wif, cashaddr, tokenaddr } = JSON.parse(readFileSync(join(ROOT, file), 'utf8'));
    if (!wif || !cashaddr) throw new Error(`${file} missing wif/cashaddr`);
    return { label, wif, cashaddr, tokenaddr: tokenaddr ?? '' };
  });

  const lines = [
    '// AUTO-GENERATED by scripts/generate-shell-dev-wallets.mjs — do not edit by hand.',
    '// CHIPNET / DEV ONLY. WIFs are plaintext; file is gitignored.',
    '// Re-run the generator after adding wallets via scripts/generate-addresses.mjs.',
    '',
    'export interface DevWallet {',
    '  readonly label: string;',
    '  readonly cashaddr: string;',
    '  readonly tokenaddr: string;',
    '  readonly wif: string;',
    '}',
    '',
    'export const DEV_WALLETS: readonly DevWallet[] = [',
    ...records.map(
      (r) =>
        `  { label: '${escapeStringLiteral(r.label)}', cashaddr: '${escapeStringLiteral(r.cashaddr)}', tokenaddr: '${escapeStringLiteral(r.tokenaddr)}', wif: '${escapeStringLiteral(r.wif)}' },`,
    ),
    '];',
    '',
    `export const DEV_WALLETS_BUNDLED_AT = '${new Date().toISOString()}';`,
    '',
  ];

  mkdirSync(dirname(OUT), { recursive: true });
  writeFileSync(OUT, lines.join('\n'));
  console.log(`  wrote ${OUT} (${records.length} wallets: ${records.map((r) => r.label).join(', ')})`);
}

main();