import { authHeaders, forgetSession } from '../lib/auth.mjs';
import { edge, node, port, sceneObject, variable } from '../lib/builders.mjs';

/** The project this step makes and deletes again; a run that died halfway leaves it for the next. */
const TEMP_NAME = 'Release 60';
const UPDATED = 'Release 60 updated';
// Not a 16:9 multiple of the window on purpose: fitting it would need a scale between the steps.
const CAMERA = { width: 300, height: 180 };
/** The zoom steps of the game view (`GAME_SCALE_STEPS`); Auto takes the largest that fits whole. */
const STEPS = [0.25, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
const RED = '#e0553f';
const BACKGROUND = '#22252c';

/**
 * A small game of its own: a red crate in the middle of the camera that the arrow keys move, a
 * `Log` and a recording on start, and S stopping the game.
 */
function game(id) {
  const mover = {
    nodes: [
      node('m-update', 'OnUpdate', 0, 0),
      node('m-owner', 'Owner', 0, 120),
      node('m-axis', 'AxisInput', 0, 200),
      node('m-speed', 'Variables', 0, 400, {}, [port('speed', 'number')]),
      node('m-move', 'Move', 340, 0),
    ],
    edges: [
      edge('m1', 'm-update', 'exec', 'm-move', 'exec'),
      edge('m2', 'm-update', 'dt', 'm-move', 'dt'),
      edge('m3', 'm-owner', 'object', 'm-move', 'object'),
      edge('m4', 'm-axis', 'x', 'm-move', 'dx'),
      edge('m5', 'm-axis', 'y', 'm-move', 'dy'),
      edge('m6', 'm-speed', 'speed', 'm-move', 'scale'),
    ],
  };
  const control = {
    nodes: [
      node('c-start', 'OnStart', 0, 0),
      node('c-log', 'Log', 260, 0, { message: 'released game started' }),
      node('c-record', 'StartRecording', 520, 0, { name: 'Released 60', fps: '30' }),
      node('c-key', 'OnKeyDown', 0, 160, { key: 's' }),
      node('c-stop', 'StopGame', 260, 160),
    ],
    edges: [
      edge('c1', 'c-start', 'exec', 'c-log', 'exec'),
      edge('c2', 'c-key', 'exec', 'c-stop', 'exec'),
      edge('c3', 'c-log', 'exec', 'c-record', 'exec'),
    ],
  };
  return {
    formatVersion: 2,
    id,
    name: TEMP_NAME,
    activeSceneId: 'scene',
    assets: [
      {
        id: 'scene',
        type: 'scene',
        name: 'Level',
        props: { backgroundColor: 0x22252c },
        objects: [
          sceneObject('crate', 'crate'),
          sceneObject('mover', 'mover', { parentId: 'crate' }),
          sceneObject('camera', 'camera'),
          sceneObject('control', 'control'),
        ],
      },
      { id: 'crate', type: 'sprite', name: 'Crate', props: { width: 40, height: 40, color: 0xe0553f } },
      { id: 'camera', type: 'camera', name: 'Camera', props: { ...CAMERA, zoom: 1 } },
      {
        id: 'mover',
        type: 'behavior',
        name: 'Mover',
        props: { speed: 200 },
        variables: [variable('speed', 'number', 0)],
        graph: mover,
      },
      { id: 'control', type: 'behavior', name: 'Control', props: {}, variables: [], graph: control },
    ],
  };
}

/**
 * Releasing a project (#266): published from the main menu, played from the link without a
 * session – only the game, zoomed to Auto or, once the project says so, to Fit (#279), on the page
 * colour, with a fullscreen button in the corner (#267) – updated under the same link, and taken down.
 *
 * Works on a throwaway project of its own, like step 50. The last thing it does is delete that
 * project and open the fixture again.
 */
export async function release(t) {
  const { check, cdp, json, click, locate, sleep, waitUntil, settle, holdKey, press } = t;
  const { clickToolbar, clickText, shot, baseUrl, navigate, exceptions, saved } = t;

  const send = async (method, route, body, signedIn = true) =>
    fetch(`${baseUrl}api/index.php?r=${route}`, {
      method,
      headers: { ...(signedIn ? await authHeaders(baseUrl) : {}), 'Content-Type': 'application/json' },
      body: body === undefined ? undefined : JSON.stringify(body),
      signal: AbortSignal.timeout(20_000),
    });
  // Step 45 changes the password of `e2e`, which ends the session the tools had cached.
  const api = async (method, route, body) => {
    const first = await send(method, route, body);
    if (first.status !== 401) return first;
    forgetSession(baseUrl);
    return send(method, route, body);
  };
  const sweep = async () => {
    for (const project of await (await api('GET', 'projects')).json()) {
      if (project.name === TEMP_NAME || project.name === UPDATED)
        await api('DELETE', `projects/${project.id}`);
    }
  };
  const clickLast = async (text) => {
    await settle();
    const at = await locate(text, true);
    await click(at.x, at.y);
  };
  const openRelease = async () => {
    await clickToolbar('menu');
    await clickText('Release…');
    await waitUntil('__gm.release() !== null', { label: 'the release dialog opened' });
    return json('__gm.release()');
  };
  const player = (what) => json(`__gameMakerPlay.${what}`);
  /** The play page as somebody without an account opens it. */
  const openLink = async (link) => {
    await cdp.send('Network.clearBrowserCookies');
    await cdp.send('Page.navigate', { url: link });
    await waitUntil('Boolean(window.__gameMakerPlay)', { timeout: 15000, label: 'the play page is up' });
  };

  // The step before may leave an edit on its way to the server; leaving the page then would stop at
  // the browser's "leave site?" question, and nothing answers it.
  await saved();
  await sweep();
  const made = await (await api('POST', 'projects', { name: TEMP_NAME })).json();
  const put = await api('PUT', `projects/${made.id}`, { revision: made.revision, project: game(made.id) });
  if (!put.ok) throw new Error(`could not write the game: ${put.status}`);
  try {
    await cdp.send('Page.navigate', { url: `${baseUrl}?project=${made.id}` });
    await sleep(4000);
    await waitUntil(`window.__gm?.state?.project?.id === ${JSON.stringify(made.id)}`, {
      timeout: 15000,
      label: 'the throwaway project is open',
    });

    // 60a. Not released yet: no link, and Publish makes one from the saved project.
    const before = await openRelease();
    await clickLast('Publish');
    await waitUntil('__gm.release()?.link != null', { label: 'the dialog shows the link' });
    const after = await json('__gm.release()');
    const token = /\?game=([a-f0-9]{32})$/.exec(after.link ?? '')?.[1] ?? '';
    const origin = new URL(baseUrl).origin;
    check(
      'Publish in the release dialog makes a link to the play page, for the project as saved',
      before.link === null &&
        before.state.startsWith('Not released') &&
        after.link === `${origin}/game-maker/play.html?game=${token}` &&
        after.state.endsWith('the link plays the project as saved') &&
        after.warnings.length === 0,
      JSON.stringify({ before, after }),
    );
    const open = await send('GET', `releases/${token}`, undefined, false);
    const copy = open.ok ? await open.json() : null;
    check(
      'the released copy is open without a session, under the token rather than the project id',
      open.status === 200 && copy?.name === TEMP_NAME && copy?.project?.id === token,
      JSON.stringify({ status: open.status, name: copy?.name, id: copy?.project?.id }),
    );
    await shot('60-release-dialog');
    await clickLast('Cancel');

    // 60b. A change to the saved project is not in the copy until Update release, which keeps the link.
    const stored = await (await api('GET', `projects/${made.id}`)).json();
    await api('PUT', `projects/${made.id}`, {
      revision: stored.revision,
      project: { ...stored.project, name: UPDATED },
    });
    await cdp.send('Page.reload');
    await sleep(4000);
    await waitUntil(`window.__gm?.state?.project?.name === ${JSON.stringify(UPDATED)}`, {
      timeout: 15000,
      label: 'the changed project is open',
    });
    const stale = await openRelease();
    const nameBefore = (await (await send('GET', `releases/${token}`, undefined, false)).json()).name;
    await clickLast('Update release');
    await waitUntil('__gm.release()?.state.endsWith("as saved")', { label: 'the release is up to date' });
    const updated = await json('__gm.release()');
    const nameAfter = (await (await send('GET', `releases/${token}`, undefined, false)).json()).name;
    check(
      'the copy stays as it was until Update release, which keeps the link',
      stale.state.endsWith('the project has changed since') &&
        nameBefore === TEMP_NAME &&
        nameAfter === UPDATED &&
        updated.link === after.link,
      JSON.stringify({ stale: stale.state, nameBefore, nameAfter, link: updated.link }),
    );
    await clickLast('Cancel');

    // 60c. The link, without a session: the page colour, "Click to play", and nothing of the editor.
    await openLink(after.link);
    await waitUntil('__gameMakerPlay.screen().caption === "Click to play"', {
      timeout: 15000,
      label: 'the game offers to start',
    });
    const page = {
      background: await json('getComputedStyle(document.body).backgroundColor'),
      title: await json('document.title'),
      editor: await json('typeof window.__gm'),
      running: await player('running()'),
      captionHeight: (await player('screen()')).captionHeight,
      cursor: await json(`getComputedStyle(document.querySelector('canvas')).cursor`),
    };
    check(
      'the link opens without a session: only the game, on the page colour, waiting for a click',
      page.background === 'rgb(27, 29, 34)' &&
        page.title === UPDATED &&
        page.editor === 'undefined' &&
        page.running === false,
      JSON.stringify(page),
    );
    // The panel titles are 11 px; the caption is set at Theme.captionSize (16). The page keeps the
    // arrow throughout – Pixi writes `default` as `inherit`, so read what the browser makes of it.
    check(
      '"Click to play" is set larger than the panel titles, under the arrow',
      page.captionHeight >= 16 && ['auto', 'default'].includes(page.cursor),
      JSON.stringify(page),
    );

    // 60d. A click starts it in the start scene, zoomed to Auto: a whole number of pixels per unit.
    // What the page hands the browser to download is caught here instead (60j).
    await t.evaluate(`window.__downloads = [];
      HTMLAnchorElement.prototype.click = function () { window.__downloads.push({ name: this.download, href: this.href }); };`);
    const size = { w: await json('innerWidth'), h: await json('innerHeight') };
    await click(size.w / 2, size.h / 2);
    await waitUntil('__gameMakerPlay.running()', { label: 'the game runs' });
    await sleep(300);
    const cornerAfterClick = await player('fullscreen()');
    const screen = await player('screen()');
    const centre = { x: screen.frame.x + screen.frame.w / 2, y: screen.frame.y + screen.frame.h / 2 };
    const scale = screen.scale;
    const pixels = {
      centre: await player(`pixelAt(${centre.x}, ${centre.y})`),
      beside: await player(`pixelAt(${centre.x - 40 * scale}, ${centre.y})`),
    };
    const auto = Math.max(...STEPS.filter((s) => CAMERA.width * s <= size.w && CAMERA.height * s <= size.h));
    check(
      'a click starts the game in its start scene, zoomed to the largest step that fits whole',
      scale === auto &&
        screen.frame.w === CAMERA.width * scale &&
        screen.frame.h === CAMERA.height * scale &&
        pixels.centre === RED &&
        pixels.beside === BACKGROUND &&
        JSON.stringify(await player('log()')) === JSON.stringify(['released game started']),
      JSON.stringify({ size, auto, screen, pixels, log: await player('log()') }),
    );
    await shot('60-release-playing');
    const playingCursor = await json(`getComputedStyle(document.querySelector('canvas')).cursor`);
    check(
      'over a running game the cursor is still the arrow',
      ['auto', 'default'].includes(playingCursor),
      playingCursor,
    );

    // 60g (#267). The fullscreen button sits in the top right corner while the mouse moves, steps
    // aside once it rests over the running game, and is back with the next move.
    await sleep(2300);
    const rested = await player('fullscreen()');
    await t.mouse('mouseMoved', size.w / 2 + 30, size.h / 2 + 30);
    await settle();
    const movedAgain = await player('fullscreen()');
    check(
      'over a running game the fullscreen button shows while the mouse moves and steps aside when it rests',
      cornerAfterClick.button !== null &&
        cornerAfterClick.button.x > size.w - 60 &&
        cornerAfterClick.button.y < 60 &&
        rested.button === null &&
        movedAgain.button !== null,
      JSON.stringify({ cornerAfterClick, rested, movedAgain }),
    );

    // 60e. The keys go to the game: the arrow moves the crate out of the middle, S stops the game.
    await holdKey('ArrowRight', 500);
    await sleep(200);
    const moved = await player(`pixelAt(${centre.x}, ${centre.y})`);
    await press('s');
    await sleep(400);
    check(
      'the keys reach the game, and a game that stops itself offers to play again',
      moved === BACKGROUND && (await player('screen()')).caption === 'Click to play again',
      JSON.stringify({ moved, screen: await player('screen()') }),
    );

    // 60j (#405). The game recorded itself from its start: ending the run saved the recording, and a
    // released game, with no project to put it in, hands it to the browser as a Matroska file.
    await waitUntil('window.__downloads.length > 0', { label: 'the recording is downloaded' });
    const downloads = await json('window.__downloads');
    const file = JSON.parse(
      await t.evaluate(`fetch(${JSON.stringify(downloads[0]?.href ?? '')})
        .then((r) => r.arrayBuffer())
        .then((b) => JSON.stringify({ bytes: b.byteLength, head: [...new Uint8Array(b.slice(0, 4))] }))`),
    );
    check(
      'a released game downloads its recording as an MKV file once the run ends',
      downloads.length === 1 &&
        downloads[0].name === 'Released 60.mkv' &&
        file.bytes > 1000 &&
        JSON.stringify(file.head) === JSON.stringify([0x1a, 0x45, 0xdf, 0xa3]),
      JSON.stringify({ downloads: downloads.map((d) => d.name), file }),
    );

    // 60h (#267). A click on the corner button makes the page fullscreen and does not reach the
    // game – it would start it again; a second click leaves fullscreen.
    const corner = (await player('fullscreen()')).button;
    if (corner) await click(corner.x, corner.y);
    await sleep(500);
    const entered = { ...(await player('fullscreen()')), running: await player('running()') };
    const exitAt = entered.button ?? corner;
    if (exitAt) await click(exitAt.x, exitAt.y);
    await sleep(500);
    const left = await player('fullscreen()');
    check(
      'the corner button puts the page into fullscreen and back, without starting the game',
      corner !== null && entered.on && !entered.running && !left.on,
      JSON.stringify({ corner, entered, left }),
    );
    check('the play page threw nothing', exceptions().length === 0, exceptions().join(' | '));

    // 60i (#279). Project settings switch the link from Auto to Fit, with the mouse and as one undo
    // step; once the release is updated, the same link fills the window at a scale between the steps.
    await t.signIn();
    await cdp.send('Page.navigate', { url: `${baseUrl}?project=${made.id}` });
    await sleep(4000);
    await waitUntil(`window.__gm?.state?.project?.id === ${JSON.stringify(made.id)}`, {
      timeout: 15000,
      label: 'the throwaway project is open for its settings',
    });
    const undoBefore = await json('__gm.state.commands.undoStack.length');
    await clickToolbar('menu');
    await clickText('Project settings…');
    await settle();
    const shown = (await json('__gm.projectSettings()')).gameLinkZoom;
    const zoomAt = await json('__gm.projectSettingsGameLinkZoomAt()');
    await click(zoomAt.x, zoomAt.y);
    await clickLast('Fit');
    await settle();
    const chosen = (await json('__gm.projectSettings()')).gameLinkZoom;
    await shot('60-release-link-zoom');
    await clickLast('Apply');
    await settle();
    const stored279 = await json('__gm.state.project.gameLinkZoom');
    const undoAfter = await json('__gm.state.commands.undoStack.length');
    check(
      'the Project settings show the link zoom as Auto and take Fit from the menu, as one undo step',
      shown === 'auto' && chosen === 'fit' && stored279 === 'fit' && undoAfter === undoBefore + 1,
      JSON.stringify({ shown, chosen, stored: stored279, undoBefore, undoAfter }),
    );
    await saved();
    const changed = await openRelease();
    await clickLast('Update release');
    await waitUntil('__gm.release()?.state.endsWith("as saved")', { label: 'the release carries the zoom' });
    await clickLast('Cancel');
    const releasedZoom = (await (await send('GET', `releases/${token}`, undefined, false)).json()).project
      .gameLinkZoom;
    await openLink(after.link);
    await waitUntil('__gameMakerPlay.screen().caption === "Click to play"', {
      timeout: 15000,
      label: 'the fitted game offers to start',
    });
    await click(size.w / 2, size.h / 2);
    await waitUntil('__gameMakerPlay.running()', { label: 'the fitted game runs' });
    await sleep(300);
    const fitted = await player('screen()');
    const fit = Math.min(size.w / CAMERA.width, size.h / CAMERA.height);
    const near = (a, b) => Math.abs(a - b) < 0.01;
    const fittedCentre = {
      x: fitted.frame.x + fitted.frame.w / 2,
      y: fitted.frame.y + fitted.frame.h / 2,
    };
    const fittedPixels = {
      centre: await player(`pixelAt(${fittedCentre.x}, ${fittedCentre.y})`),
      beside: await player(`pixelAt(${fittedCentre.x - 40 * fitted.scale}, ${fittedCentre.y})`),
    };
    check(
      'with Fit the link fills the window, at a scale between the steps',
      changed.state.endsWith('the project has changed since') &&
        releasedZoom === 'fit' &&
        !STEPS.includes(fit) &&
        fit > auto &&
        near(fitted.scale, fit) &&
        near(fitted.frame.w, CAMERA.width * fit) &&
        near(fitted.frame.h, CAMERA.height * fit) &&
        (near(fitted.frame.w, size.w) || near(fitted.frame.h, size.h)) &&
        fittedPixels.centre === RED &&
        fittedPixels.beside === BACKGROUND,
      JSON.stringify({ size, auto, fit, fitted, fittedPixels, releasedZoom, changed: changed.state }),
    );
    await shot('60-release-fit');
    await press('s');
    await sleep(400);
    check('the fitted play page threw nothing', exceptions().length === 0, exceptions().join(' | '));

    // 60f. Take down asks, then the link is dead – for the API and for the page.
    await t.signIn();
    await cdp.send('Page.navigate', { url: `${baseUrl}?project=${made.id}` });
    await sleep(4000);
    await waitUntil(`window.__gm?.state?.project?.id === ${JSON.stringify(made.id)}`, {
      timeout: 15000,
      label: 'the throwaway project is open again',
    });
    await openRelease();
    await clickLast('Take down');
    await clickLast('Take down');
    await waitUntil('__gm.release()?.link === null', { label: 'the dialog shows no link' });
    await clickLast('Cancel');
    const dead = await send('GET', `releases/${token}`, undefined, false);
    await openLink(after.link);
    await waitUntil('__gameMakerPlay.screen().caption !== "Loading…"', { label: 'the page gave up' });
    check(
      'Take down makes the link dead',
      dead.status === 404 && (await player('screen()')).caption === 'This game is not available.',
      JSON.stringify({ status: dead.status, screen: await player('screen()') }),
    );
  } finally {
    await sweep();
    await navigate();
  }
}