// Generated, do not edit. sha256:1c5123afde8b42e8b0c7944a90a9a3952b38ed44748eb715f09bb8aa35f593d5
import { mkdir, readdir, rename, rm, readFile, writeFile, copyFile, stat } from 'node:fs/promises';
import { join, sep, resolve } from 'node:path';

import {
  installDir, portfolioDir, archiveDir, assertValidName, sameName,
  activeName, writeActiveName, listPortfolios,
} from './portfolios.mjs';
import { run } from './db/conn.mjs';
import { createDatabase } from './db.js';
import { CONFIG } from '../shared/config.js';
import { fail } from '../shared/app-error.js';
import { capacityReached } from './license.mjs';

const BUREN = ['-wal', '-shm'];

const HANDLE_SLEUTEL = 'ai_handle_secret';

const bestaat = async (pad) => { try { await stat(pad); return true; } catch { return false; } };

function eisNietActief(naam, sleutel) {
  if (sameName(naam, activeName())) {
    fail(sleutel, { naam },
      `'${naam}' is the portfolio that is open now; switch to another one first.`);
  }
}

function eisBestaat(naam) {
  const gevonden = listPortfolios().find(p => sameName(p.naam, naam));
  if (!gevonden) fail('portfolios.unknownPortfolio', { naam }, `There is no portfolio '${naam}'.`);
  return gevonden;
}

function eisVrijeNaam(naam) {
  assertValidName(naam);
  const botsing = listPortfolios().find(p => sameName(p.naam, naam));
  if (botsing) {
    fail('portfolios.nameInUse', { naam: botsing.naam },
      `A portfolio '${botsing.naam}' already exists; names that differ only in case count as the same.`);
  }
  return naam;
}

export async function createPortfolio(naam, { kopieVan = null, baseCurrency = null } = {}) {
  if (kopieVan && baseCurrency) {
    throw new Error('A copy keeps the unit of account of its source; do not pass baseCurrency with kopieVan.');
  }
  const max = capacityReached('portfolios', listPortfolios().length);
  if (max !== null) {
    fail('portfolios.maxFree', { max },
      `The free version holds ${max} portfolio(s). A licence lifts that; nothing is removed in the meantime.`);
  }
  eisVrijeNaam(naam);
  const bron = kopieVan ? eisBestaat(kopieVan) : null;
  const doel = portfolioDir(naam);
  await mkdir(doel, { recursive: true });

  try {
    if (!bron) {
      createDatabase(join(doel, 'db.sqlite'), { baseCurrency: baseCurrency ?? CONFIG.PORTFOLIO.DEFAULT_BASE_CURRENCY });
      return { naam, gekopieerdVan: null, database: true, geheimen: false };
    }
    const database = await kopieerDatabase(bron.naam, doel);
    const geheimen = await kopieerGeheimen(bron.naam, doel);
    return { naam, gekopieerdVan: bron.naam, database, geheimen };
  } catch (e) {
    await rm(doel, { recursive: true, force: true });
    throw e;
  }
}

async function kopieerDatabase(bronNaam, doelMap) {
  const doel = join(doelMap, 'db.sqlite');
  if (sameName(bronNaam, activeName())) {
    run(`VACUUM INTO '${doel.replace(/'/g, "''")}'`, []);
    return true;
  }
  const bron = join(portfolioDir(bronNaam), 'db.sqlite');
  if (!await bestaat(bron)) return false;
  await copyFile(bron, doel);
  for (const b of BUREN) if (await bestaat(bron + b)) await copyFile(bron + b, doel + b);
  return true;
}

async function kopieerGeheimen(bronNaam, doelMap) {
  const bron = join(portfolioDir(bronNaam), 'secrets.json');
  if (!await bestaat(bron)) return false;
  const store = JSON.parse(await readFile(bron, 'utf-8'));
  delete store[HANDLE_SLEUTEL];
  await writeFile(join(doelMap, 'secrets.json'), JSON.stringify(store, null, 2), { mode: 0o600 });
  return true;
}

export function activatePortfolio(naam) {
  const doel = eisBestaat(naam);
  if (sameName(doel.naam, activeName())) {
    return { naam: doel.naam, gewisseld: false, supervised: isSupervised() };
  }
  writeActiveName(doel.naam);
  return { naam: doel.naam, gewisseld: true, supervised: isSupervised() };
}

export const isSupervised = () => process.env.ASSETAPP_SUPERVISED === '1';

export async function renamePortfolio(vanNaam, naarNaam) {
  const bron = eisBestaat(vanNaam);
  eisNietActief(bron.naam, 'portfolios.activeCannotRename');
  if (!sameName(bron.naam, naarNaam)) eisVrijeNaam(naarNaam);
  else assertValidName(naarNaam);
  await rename(portfolioDir(bron.naam), portfolioDir(naarNaam));
  return { van: bron.naam, naar: naarNaam };
}

export async function archivePortfolio(naam) {
  const bron = eisBestaat(naam);
  eisNietActief(bron.naam, 'portfolios.activeCannotArchive');
  await mkdir(archiveDir(), { recursive: true });
  const doelNaam = await vrijeArchiefNaam(bron.naam);
  await rename(portfolioDir(bron.naam), join(archiveDir(), doelNaam));
  return { naam: bron.naam, archiefNaam: doelNaam, map: join(archiveDir(), doelNaam) };
}

async function vrijeArchiefNaam(naam) {
  if (!await bestaat(join(archiveDir(), naam))) return naam;
  for (let n = 2; n < 1000; n++) {
    const kandidaat = `${naam} (${n})`;
    if (!await bestaat(join(archiveDir(), kandidaat))) return kandidaat;
  }
  fail('portfolios.archiveFull', { naam }, `The archive is full of directories named '${naam}'.`);
}

export async function listArchived() {
  let entries;
  try { entries = await readdir(archiveDir(), { withFileTypes: true }); }
  catch (e) { if (e.code === 'ENOENT') return []; throw e; }
  const uit = [];
  for (const e of entries) {
    if (!e.isDirectory()) continue;
    const map = join(archiveDir(), e.name);
    let gearchiveerd = null;
    try { gearchiveerd = (await stat(map)).mtime.toISOString(); } catch { }
    uit.push({ naam: e.name, map, gearchiveerd });
  }
  return uit.sort((a, b) => String(b.gearchiveerd).localeCompare(String(a.gearchiveerd)));
}

export async function purgeArchived(naam) {
  assertValidName(naam.replace(/ \(\d+\)$/, ''));
  const map = resolve(join(archiveDir(), naam));
  if (!map.startsWith(resolve(archiveDir()) + sep)) {
    throw new Error(`'${naam}' points outside the archive.`);
  }
  if (!await bestaat(map)) fail('portfolios.notInArchive', { naam }, `There is no '${naam}' in the archive.`);
  await rm(map, { recursive: true, force: true });
  return { naam, map };
}

export async function overviewPortfolios() {
  return {
    actief: activeName(),
    installatie: installDir(),
    portefeuilles: listPortfolios(),
    archief: await listArchived(),
  };
}