import test from 'node:test';
import assert from 'node:assert/strict';
import Fastify from 'fastify';
import cookie from '@fastify/cookie';
import rateLimit from '@fastify/rate-limit';
import api from '../src/api.js';

// App met een instelbare ingelogde gebruiker en vastgelegde queries; de
// shared_library-select levert een vaste mix van systeembrede en school-items.
function makeApp(user, sharedRows = []) {
  const calls = [];
  const pool = {
    async query(sql, params = []) {
      calls.push({ sql, params });
      if (sql.includes('FROM sessions s JOIN users u')) return { rows: [user] };
      if (sql.includes('FROM user_roles')) return { rows: [] };
      if (sql.includes('FROM shared_library')) return { rows: sharedRows };
      if (sql.includes('INSERT INTO shared_library') && sql.includes('RETURNING id')) return { rows: [{ id: 42 }] };
      return { rows: [] };
    },
  };
  return (async () => {
    const app = Fastify({ trustProxy: 2 });
    await app.register(cookie);
    await app.register(rateLimit, { global: false });
    app.decorate('pg', pool);
    await app.register(api, { prefix: '/api' });
    await app.ready();
    return { app, calls };
  })();
}

const cookies = { teach_session: 'x'.repeat(64) };
const superUser = { id: 1, username: 'sm', role: 'super', school_id: null, class_id: null, data: {}, data_rev: 0 };
const teacher = { id: 7, username: 'juf', role: 'teacher', school_id: 2, class_id: null, data: {}, data_rev: 0 };
const pupil = { id: 9, username: 'kind', role: 'pupil', school_id: 2, class_id: 5, data: {}, data_rev: 0 };

test('GET /shared/:kind filtert op systeembreed + eigen school voor staf', async () => {
  const { app, calls } = await makeApp(teacher, [
    { id: 1, school_id: null, owner_id: 1, folder: 'Rekenen', name: 'Breuken', owner_name: 'SM' },
  ]);
  const res = await app.inject({ method: 'GET', url: '/api/shared/board', cookies });
  assert.equal(res.statusCode, 200, res.body);
  const items = res.json().items;
  assert.equal(items[0].scope, 'global');
  assert.equal(items[0].canManage, false);
  const q = calls.find((c) => c.sql.includes('FROM shared_library'));
  assert.ok(q.sql.includes('school_id IS NULL OR s.school_id = $2'));
  assert.equal(q.params[1], 2);
  await app.close();
});

test('leerlingen hebben geen toegang tot de gedeelde bibliotheek', async () => {
  const { app } = await makeApp(pupil);
  const res = await app.inject({ method: 'GET', url: '/api/shared/board', cookies });
  assert.equal(res.statusCode, 403);
  await app.close();
});

test('publiceren met scope global vereist systeemmanager', async () => {
  const { app } = await makeApp(teacher);
  const res = await app.inject({ method: 'POST', url: '/api/shared/board', cookies,
    payload: { name: 'Breuken', folder: 'Rekenen', data: { widgets: [] }, scope: 'global' } });
  assert.equal(res.statusCode, 403);
  const { app: superApp, calls } = await makeApp(superUser);
  const ok = await superApp.inject({ method: 'POST', url: '/api/shared/board', cookies,
    payload: { name: 'Breuken', folder: 'Rekenen', data: { widgets: [] }, scope: 'global' } });
  assert.equal(ok.statusCode, 200, ok.body);
  const ins = calls.find((c) => c.sql.includes('INSERT INTO shared_library'));
  assert.equal(ins.params[0], null); // school_id NULL = systeembreed
  await superApp.close();
  await app.close();
});

test('publiceren met scope school gebruikt de eigen school', async () => {
  const { app, calls } = await makeApp(teacher);
  const res = await app.inject({ method: 'POST', url: '/api/shared/anchor', cookies,
    payload: { name: 'water', data: { cells: {} }, scope: 'school' } });
  assert.equal(res.statusCode, 200, res.body);
  const ins = calls.find((c) => c.sql.includes('INSERT INTO shared_library'));
  assert.equal(ins.params[0], 2);
  assert.equal(ins.params[2], 'anchor');
  await app.close();
});

test('beheren mag alleen door eigenaar, schoolbeheerder of systeemmanager', async () => {
  // teacher (id 7) probeert andermans school-item te verwijderen
  const foreignItem = { id: 5, school_id: 2, owner_id: 8, kind: 'board', folder: '', name: 'X', data: {} };
  const { app } = await makeApp(teacher, [foreignItem]);
  const res = await app.inject({ method: 'DELETE', url: '/api/shared/board/5', cookies });
  assert.equal(res.statusCode, 403);
  // eigenaar mag wel
  const ownItem = { ...foreignItem, owner_id: 7 };
  const { app: app2 } = await makeApp(teacher, [ownItem]);
  const res2 = await app2.inject({ method: 'DELETE', url: '/api/shared/board/5', cookies });
  assert.equal(res2.statusCode, 200, res2.body);
  await app2.close();
  await app.close();
});

test('map-rewrite weigert als niet alle items beheerd mogen worden', async () => {
  const rows = [
    { id: 5, school_id: 2, owner_id: 7, kind: 'board', folder: 'Taal', name: 'A', data: {} },
    { id: 6, school_id: 2, owner_id: 8, kind: 'board', folder: 'Taal/Sub', name: 'B', data: {} },
  ];
  const { app } = await makeApp(teacher, rows);
  const res = await app.inject({ method: 'PATCH', url: '/api/shared/board/folder', cookies,
    payload: { scope: 'school', from: 'Taal', to: 'Lezen' } });
  assert.equal(res.statusCode, 403);
  await app.close();
});