import assert from 'node:assert/strict';
import test from 'node:test';
import {
  adoptDecorAssets, decorAssetIds, initialDecorImageCm,
  projectDecorImage, resolveDecorAssets,
} from '../test-build/decor-assets.js';
import { decorBoxItem } from '../test-build/space-geometry.js';

const id = (char) => char.repeat(64);

test('#51 initial image sizing preserves aspect and caps portrait height', () => {
  assert.deepEqual(initialDecorImageCm(400, 200), { w: 100, h: 50 });
  assert.deepEqual(initialDecorImageCm(100, 400), { w: 50, h: 200 });
  assert.deepEqual(initialDecorImageCm(0, 0), { w: 100, h: 100 });
});

test('#51 asset ids are unique across spaces and malformed ids fail closed', () => {
  assert.deepEqual(decorAssetIds({ spaces: [
    { decor: [{ kind: 'image', asset_id: id('b') }, { kind: 'image', asset_id: 'bad' }] },
    { decor: [{ kind: 'image', asset_id: id('b') }, { kind: 'image', asset_id: id('a') }] },
  ] }), [id('b'), id('a')]);
});

test('#51 full and static renderers share one fail-closed image projection', () => {
  const shape = {
    id: 'image', kind: 'image', asset_id: id('d'),
    x: 0.1, y: 0.2, w: 0.3, h: 0.4, angle: 405, opacity: 2,
    flip_h: true,
  };
  assert.deepEqual(projectDecorImage(shape, 1000, 500), [
    100, 100, 300, 200, 1,
    'translate(250 200) rotate(45) scale(-1 1) translate(-250 -200)',
  ]);
  assert.equal(projectDecorImage({ ...shape, w: 0 }, 1000, 500), null);
});

test('#430 проекция читает flip_v, а не только flip_h', () => {
  // Единственный кейс #51 задавал flip_h: true и ничего не говорил про flip_v,
  // поэтому `${shape.flip_v ? -1 : 1}` → `1` оставляло 7 pass. Вертикальное
  // отражение — половина контракта AC3, и своего свидетеля у неё не было.
  const shape = { id: 'image', kind: 'image', asset_id: id('d'), x: 0, y: 0, w: 1, h: 1 };
  const scaleOf = (extra) => projectDecorImage({ ...shape, ...extra }, 100, 100)[5]
    .match(/scale\([^)]*\)/)[0];
  assert.equal(scaleOf({}), 'scale(1 1)');
  assert.equal(scaleOf({ flip_h: true }), 'scale(-1 1)');
  assert.equal(scaleOf({ flip_v: true }), 'scale(1 -1)');
  assert.equal(scaleOf({ flip_h: true, flip_v: true }), 'scale(-1 -1)');
});

test('#430 проекция переносит opacity, а не подставляет единицу', () => {
  // Кейс #51 задавал opacity: 2 и ждал 1 — ожидание, неотличимое от «opacity
  // игнорируется»: мутант `const opacity = 1` проходил. Промежуточное значение
  // отличает перенос от заглушки, крайности закрепляют clamp и fallback.
  const shape = { id: 'image', kind: 'image', asset_id: id('d'), x: 0, y: 0, w: 1, h: 1 };
  const opacityOf = (opacity) => projectDecorImage({ ...shape, opacity }, 100, 100)[4];
  assert.equal(opacityOf(0.4), 0.4);
  assert.equal(opacityOf(0), 0, 'полностью прозрачная картинка — законное состояние');
  assert.equal(opacityOf(-1), 0);
  assert.equal(opacityOf(2), 1);
  assert.equal(opacityOf(undefined), 1, 'нет значения — непрозрачная');
  assert.equal(opacityOf('nonsense'), 1);
});

test('#51 resolve projection rejects malformed catalog rows', () => {
  const good = {
    asset_id: id('c'), name: 'safe.svg', mime: 'image/svg+xml',
    width: 20, height: 10, bytes: 100, url: `/api/houseplan/content/assets/_/${id('c')}.svg`,
  };
  const adopted = adoptDecorAssets({ assets: [good, { ...good, asset_id: 'bad' }, { ...good, width: 0 }] });
  assert.equal(adopted.size, 1);
  assert.deepEqual(adopted.get(id('c')), good);
  assert.equal(adoptDecorAssets({ assets: [{ ...good, url: 'https://example.com/tracker.svg' }] }).size, 0);
  assert.equal(adoptDecorAssets({ assets: [{ ...good, mime: 'image/png' }] }).size, 0);
});

test('#430 форма asset_id проверяется сама, а не через совпадение с url', () => {
  // Строка `{ ...good, asset_id: 'bad' }` выше не свидетель формы id: у неё
  // остаётся url настоящего ассета, и её отбивает сравнение url. Поэтому
  // мутант `!DECOR_ASSET_ID_RE.test(...)` → `false` выживал. Здесь url
  // согласован с плохим id — сработать может только сама проверка формы.
  const row = (asset_id) => ({
    asset_id, name: 'safe.svg', mime: 'image/svg+xml', width: 20, height: 10, bytes: 100,
    url: `/api/houseplan/content/assets/_/${asset_id}.svg`,
  });
  assert.equal(adoptDecorAssets({ assets: [row('bad')] }).size, 0);
  assert.equal(adoptDecorAssets({ assets: [row(`${id('a')}a`)] }).size, 0, 'длиннее 64');
  assert.equal(adoptDecorAssets({ assets: [row(id('a').replace('a', 'A'))] }).size, 0, 'не hex');
  assert.equal(adoptDecorAssets({ assets: [row(id('a'))] }).size, 1, 'корректный id проходит');
});

test('#51 a rotated image contributes its complete visible bounds to framing', () => {
  const item = decorBoxItem({ x: 0.1, y: 0.2, w: 0.2, h: 0.1, angle: 90 });
  assert.ok(item);
  assert.ok(Math.abs(item.minX - 150) < 1e-9);
  assert.ok(Math.abs(item.maxX - 250) < 1e-9);
  assert.ok(Math.abs(item.minY - 150) < 1e-9);
  assert.ok(Math.abs(item.maxY - 350) < 1e-9);
});

test('#51 resolve batches and deduplicates ids at the backend cap', async () => {
  const calls = [];
  const hass = { callWS: async (message) => {
    calls.push(message.asset_ids);
    return { assets: message.asset_ids.map((asset_id) => ({
      asset_id, name: 'x.png', mime: 'image/png', width: 1, height: 1,
      bytes: 1, url: `/api/houseplan/content/assets/_/${asset_id}.png`,
    })) };
  } };
  const ids = Array.from({ length: 201 }, (_, index) => index.toString(16).padStart(64, '0'));
  const resolved = await resolveDecorAssets(hass, [ids[0], ...ids], 7);
  assert.equal(resolved.size, 201);
  assert.deepEqual(calls.map((batch) => batch.length), [200, 1]);
  assert.equal(await resolveDecorAssets(hass, [...ids].reverse(), 7), resolved);
  assert.deepEqual(calls.map((batch) => batch.length), [200, 1]);
});

test('#51 missing asset ids are negative-cached with their complete set', async () => {
  let calls = 0;
  const connection = {};
  const hass = {
    connection,
    callWS: async () => { calls++; return { assets: [], missing: [id('f')] }; },
  };
  const first = await resolveDecorAssets(hass, [id('f')], 10);
  const second = await resolveDecorAssets({ ...hass }, [id('f')], 10);
  assert.equal(first.size, 0);
  assert.equal(second, first);
  assert.equal(calls, 1);
});

test('#434 resolve cache is scoped by authoritative config epoch', async () => {
  let calls = 0;
  const connection = {};
  const hass = {
    connection,
    callWS: async () => {
      calls++;
      return calls === 1 ? { assets: [], missing: [id('e')] } : { assets: [{
        asset_id: id('e'), name: 'ready.png', mime: 'image/png', width: 1, height: 1,
        bytes: 1, url: `/api/houseplan/content/assets/_/${id('e')}.png`,
      }] };
    },
  };
  const missing = await resolveDecorAssets(hass, [id('e')], 20);
  assert.equal(missing.size, 0);
  assert.equal(await resolveDecorAssets({ ...hass }, [id('e')], 20), missing);
  const resolved = await resolveDecorAssets(hass, [id('e')], 21);
  assert.equal(resolved.has(id('e')), true);
  assert.equal(calls, 2);
});

test('#434 failed resolve calls are never cached', async () => {
  let calls = 0;
  const connection = {};
  const hass = {
    connection,
    callWS: async () => {
      calls++;
      if (calls === 1) throw new Error('transport');
      return { assets: [], missing: [id('d')] };
    },
  };
  await assert.rejects(resolveDecorAssets(hass, [id('d')], 30));
  assert.equal((await resolveDecorAssets(hass, [id('d')], 30)).size, 0);
  assert.equal(calls, 2);
});