import test from 'node:test';
import assert from 'node:assert/strict';
import { mkdtemp, readFile, rm } from 'node:fs/promises';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import Fastify from 'fastify';
import imageApi, {
  DEFAULT_IMAGE_QUOTAS, canManageImage, canSeeImage, defaultImageQuota,
  detectImageType, imageScopeForUser, normaliseImageFolder,
} from '../src/images.js';

const superUser = { id: 1, role: 'super', school_id: null, allRoles: ['super'] };
const admin = { id: 2, role: 'admin', school_id: 7, allRoles: ['admin'] };
const teacher = { id: 3, role: 'teacher', school_id: 7, allRoles: ['teacher'] };
const parent = { id: 4, role: 'parent', school_id: 7, allRoles: ['parent'] };
const pupil = { id: 5, role: 'pupil', school_id: 7, allRoles: ['pupil'] };

test('afbeeldingsquota en uploadscope volgen alle rollen, inclusief ouders', () => {
  assert.equal(defaultImageQuota(superUser), null);
  assert.equal(defaultImageQuota(admin), 400 * 1024 * 1024);
  for (const user of [teacher, parent, pupil])
    assert.equal(defaultImageQuota(user), 200 * 1024 * 1024);
  assert.equal(DEFAULT_IMAGE_QUOTAS.default, 200 * 1024 * 1024);
  assert.equal(imageScopeForUser(superUser), 'global');
  assert.equal(imageScopeForUser(admin), 'school');
  assert.equal(imageScopeForUser(teacher), 'personal');
  assert.equal(imageScopeForUser(parent), 'personal');
  assert.equal(imageScopeForUser(pupil), 'personal');
});

test('verwijderen volgt systeem-, school- en persoonlijk eigenaarschap', () => {
  const global = { scope: 'global', owner_id: 1, school_id: null };
  const school = { scope: 'school', owner_id: 8, school_id: 7 };
  const personal = { scope: 'personal', owner_id: teacher.id, school_id: 7 };
  for (const owner of [teacher, parent, pupil])
    assert.equal(canManageImage(owner, { ...personal, owner_id: owner.id }), true);
  assert.equal(canManageImage(superUser, global), true);
  assert.equal(canManageImage(admin, global), false);
  assert.equal(canManageImage(admin, school), true);
  assert.equal(canManageImage(teacher, school), false);
  assert.equal(canManageImage(teacher, personal), true);
  assert.equal(canManageImage(parent, personal), false);
  assert.equal(canSeeImage(teacher, global), true);
  assert.equal(canSeeImage(teacher, school), true);
  assert.equal(canSeeImage(parent, personal), false);
});

test('alleen echte veilige rasterafbeeldingen en geldige map-paden worden geaccepteerd', () => {
  const png = Buffer.from([0x89,0x50,0x4e,0x47,0x0d,0x0a,0x1a,0x0a,0,0,0,0]);
  const jpg = Buffer.from([0xff,0xd8,0xff,0xe0,0,0,0,0,0,0,0,0]);
  const webp = Buffer.from('RIFF1234WEBP');
  assert.deepEqual(detectImageType(png), { mime: 'image/png', ext: 'png' });
  assert.deepEqual(detectImageType(jpg), { mime: 'image/jpeg', ext: 'jpg' });
  assert.deepEqual(detectImageType(webp), { mime: 'image/webp', ext: 'webp' });
  assert.equal(detectImageType(Buffer.from('<svg onload="alert(1)"></svg>')), null);
  assert.equal(normaliseImageFolder('Rekenen/Geld/Munten'), 'Rekenen/Geld/Munten');
  assert.equal(normaliseImageFolder('../privé'), null);
  assert.equal(normaliseImageFolder('dubbel//pad'), null);
  assert.equal(normaliseImageFolder(''), '');
});

async function appFor(user, pool) {
  const storageDir = await mkdtemp(join(tmpdir(), 'teach-images-'));
  const app = Fastify();
  app.decorate('pg', pool);
  await app.register(imageApi, { prefix: '/api', storageDir, resolveUser: async () => user });
  await app.ready();
  return { app, storageDir };
}

test('persoonlijke upload kan alleen door eigenaar of systeemmanager worden verwijderd', async () => {
  const calls = [];
  const item = { id: 9, scope: 'personal', owner_id: teacher.id, school_id: 7,
    storage_key: '00000000-0000-4000-8000-000000000000.png', public_path: null };
  const pool = { async query(sql, params=[]) {
    calls.push({sql,params});
    if (sql.includes('SELECT * FROM image_assets')) return { rows: [item] };
    return { rows: [] };
  }};
  const { app, storageDir } = await appFor(teacher, pool);
  const own = await app.inject({ method: 'DELETE', url: '/api/images/9' });
  assert.equal(own.statusCode, 200, own.body);
  assert.ok(calls.some(call => call.sql.includes('DELETE FROM image_assets')));
  await app.close();await rm(storageDir,{recursive:true,force:true});

  const otherPool = { async query(sql) {
    if (sql.includes('SELECT * FROM image_assets')) return { rows: [{...item,owner_id:99}] };
    return { rows: [] };
  }};
  const other = await appFor(teacher, otherPool);
  const denied = await other.app.inject({ method: 'DELETE', url: '/api/images/9' });
  assert.equal(denied.statusCode, 404);
  await other.app.close();await rm(other.storageDir,{recursive:true,force:true});
});

test('schoolbeheerder uploadt voor school en de persoonlijke 200MB-grens wordt atomair bewaakt', async () => {
  const png = Buffer.from([0x89,0x50,0x4e,0x47,0x0d,0x0a,0x1a,0x0a,0,0,0,0]);
  const calls = [];
  const client = {
    async query(sql, params=[]) {
      calls.push({sql,params});
      if (sql.includes('SELECT id, role, school_id, image_quota_bytes FROM users'))
        return { rows: [{id:admin.id,role:'admin',school_id:7,image_quota_bytes:null}] };
      if (sql.includes('sum(size_bytes)') && sql.includes('owner_id')) return { rows: [{used:0}] };
      if (sql.includes('SELECT id, image_quota_bytes FROM schools')) return { rows: [{id:7,image_quota_bytes:null}] };
      if (sql.includes('sum(size_bytes)') && sql.includes('school_id')) return { rows: [{used:0}] };
      if (sql.includes('SELECT * FROM image_themes')) return { rows: [
        {id:11,scope:'global',school_id:null,owner_id:1},
        {id:12,scope:'school',school_id:7,owner_id:admin.id},
      ] };
      if (sql.includes('INSERT INTO image_assets')) return { rows: [{
        id:44,scope:'school',school_id:7,owner_id:admin.id,folder:'',name:'Test',
        mime_type:'image/png',size_bytes:png.length,storage_key:params[9],public_path:null,
      }] };
      return { rows: [] };
    },
    release() {},
  };
  const pool = { connect: async()=>client, query: (...args)=>client.query(...args) };
  const { app, storageDir } = await appFor(admin,pool);
  const uploaded = await app.inject({method:'POST',url:'/api/images?name=Test&themes=11,12',
    headers:{'content-type':'image/png'},payload:png});
  assert.equal(uploaded.statusCode,200,uploaded.body);
  const insert=calls.find(call=>call.sql.includes('INSERT INTO image_assets'));
  assert.equal(insert.params[1],'school');
  assert.equal(insert.params[2],7);
  assert.equal(insert.params[3],admin.id);
  assert.equal(calls.filter(call=>call.sql.includes('INSERT INTO image_asset_themes')).length,2);
  await app.close();await rm(storageDir,{recursive:true,force:true});

  const limitedCalls=[];
  const limitedClient={
    async query(sql){
      limitedCalls.push(sql);
      if(sql.includes('SELECT id, role, school_id, image_quota_bytes FROM users'))
        return{rows:[{id:teacher.id,role:'teacher',school_id:null,image_quota_bytes:null}]};
      if(sql.includes('sum(size_bytes)'))return{rows:[{used:200*1024*1024-4}]};
      return{rows:[]};
    },release(){}
  };
  const limited=await appFor(teacher,{connect:async()=>limitedClient,query:(...args)=>limitedClient.query(...args)});
  const over=await limited.app.inject({method:'POST',url:'/api/images?name=Teveel',
    headers:{'content-type':'image/png'},payload:png});
  assert.equal(over.statusCode,413,over.body);
  assert.ok(!limitedCalls.some(sql=>sql.includes('INSERT INTO image_assets')));
  await limited.app.close();await rm(limited.storageDir,{recursive:true,force:true});
});

test('migratie seedt geldafbeeldingen in meerdere thema’s en UI koppelt catalogus aan het bord', async () => {
  const [migration,server,index,board,catalog,css] = await Promise.all([
    readFile('db/012_image_catalog.sql','utf8'),readFile('src/server.js','utf8'),
    readFile('public/index.html','utf8'),readFile('public/js/board.js','utf8'),
    readFile('public/js/image-catalog.js','utf8'),readFile('public/css/image-catalog.css','utf8'),
  ]);
  assert.equal((migration.split("/img/money/").length-1),12);
  for(const theme of ['builtin-money','builtin-coins','builtin-banknotes'])assert.match(migration,new RegExp(theme));
  assert.match(migration,/CREATE TABLE IF NOT EXISTS image_asset_themes/);
  assert.match(migration,/ADD COLUMN IF NOT EXISTS image_quota_bytes/g);
  assert.match(server,/app\.register\(imageApi, \{ prefix: '\/api' \}\)/);
  assert.match(index,/css\/image-catalog\.css/);
  assert.ok(index.includes('js/image-catalog.js'));
  assert.match(index,/id="btnImages"/);
  assert.match(board,/openImageCatalog\(src=>addBoardImage/);
  assert.match(board,/uploadImageToCatalog\(f\)/);
  for(const feature of ['ic-search','ic-theme-filter','ic-folder-filter','openImageFolderExplorer','renderImageStoragePanel'])
    assert.ok(catalog.includes(feature),feature);
  assert.match(css,/@media\(max-width:760px\)/);
});