import assert from 'node:assert/strict';
import { readFile } from 'node:fs/promises';
import { createServer } from 'node:http';
import process from 'node:process';

const { chromium } = await import(
    process.env.PLAYWRIGHT_MODULE ?? 'playwright'
);
const script = await readFile(
    new URL('../ui/workspace-navigation.js', import.meta.url),
    'utf8',
);
const server = createServer((request, response) => {
    response.setHeader('Content-Type', 'text/html');
    response.end(`<!doctype html><html><head><meta name="viewport" content="width=device-width,initial-scale=1"><style>
        body { margin: 0; } #board { overflow-x: auto; width: 300px; height: 100px; }
        #board > div { width: 1500px; height: 100px; } dialog { max-height: 200px; overflow-y: auto; }
        </style></head><body><p id="page">${request.url}</p><input id="draft" value="retained"><div id="board"><div>Board columns</div></div>
        <dialog><button id="close">Close</button><div style="height:1000px">Long dialog</div></dialog><div id="long"></div></body></html>`);
});
await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
const browser = await chromium.launch({ channel: 'chrome', headless: true });
const page = await browser.newPage({ viewport: { width: 390, height: 844 } });
await page.addInitScript(script);
const root = `http://127.0.0.1:${server.address().port}`;
try {
    await page.goto(root);
    const length = await page.evaluate(() => history.length);
    for (const path of ['/board', '/ticket', '/settings']) {
        await page.evaluate(
            (path) =>
                history.pushState(
                    {
                        page: { url: path },
                        rememberedState: { draft: 'retained' },
                    },
                    '',
                    path,
                ),
            path,
        );
    }
    await page.evaluate(() => {
        window.steps = 0;
        addEventListener('popstate', () => window.steps++);
    });
    await page.evaluate(() => window.__kanbanNavigation.step(-1));
    await page.waitForFunction(() => location.pathname === '/ticket');
    assert.equal(await page.evaluate(() => window.steps), 1);
    await page.evaluate(() => window.__kanbanNavigation.step(-1));
    await page.waitForFunction(() => location.pathname === '/board');
    await page.evaluate(() => window.__kanbanNavigation.step(1));
    await page.waitForFunction(() => location.pathname === '/ticket');
    assert.equal(await page.evaluate(() => window.steps), 3);
    assert.equal(await page.evaluate(() => history.length), length + 3);
    assert.equal(await page.locator('#draft').inputValue(), 'retained');
    assert.equal(
        await page.evaluate(() => history.state.rememberedState.draft),
        'retained',
    );
    await page.goto(`${root}/full-page`);
    await page.evaluate(() => window.__kanbanNavigation.step(-1));
    await page.waitForURL(`${root}/ticket`);
    await page.evaluate(() => window.__kanbanNavigation.step(1));
    await page.waitForURL(`${root}/full-page`);
    await page.locator('dialog').evaluate((dialog) => dialog.showModal());
    assert.equal(
        await page.evaluate(() => window.__kanbanNavigation.canSwipe(1, 1)),
        false,
    );
    await page.locator('dialog').evaluate((dialog) => dialog.close());
    for (const selector of ['#board', '#draft']) {
        const point = await page.locator(selector).boundingBox();
        assert.equal(
            await page.evaluate(
                ({ x, y }) => window.__kanbanNavigation.canSwipe(x + 5, y + 5),
                point,
            ),
            false,
        );
    }
    assert.equal(
        await page.evaluate(() => window.__kanbanNavigation.canSwipe(1, 1)),
        true,
    );
    await page.dispatchEvent('#board', 'dragstart');
    assert.equal(
        await page.evaluate(() => window.__kanbanNavigation.canSwipe(1, 1)),
        false,
    );
    await page.dispatchEvent('#board', 'dragend');
    assert.equal(
        await page.evaluate(() => window.__kanbanNavigation.canSwipe(1, 1)),
        true,
    );
    assert.equal(
        await page.evaluate(
            () =>
                getComputedStyle(document.documentElement).overscrollBehaviorY,
        ),
        'none',
    );
    assert.equal(
        await page.evaluate(
            () =>
                getComputedStyle(document.documentElement).overscrollBehaviorX,
        ),
        'auto',
    );
    assert.equal(
        await page.evaluate(() => document.documentElement.scrollHeight),
        844,
    );
    await page.mouse.move(380, 400);
    await page.mouse.wheel(0, -1000);
    await page.waitForTimeout(200);
    assert.equal(await page.evaluate(() => scrollY), 0);
    await page
        .locator('#long')
        .evaluate((element) => (element.style.height = '3000px'));
    await page.mouse.wheel(0, 1000);
    await page.waitForFunction(() => scrollY > 0);
    await page.evaluate(() =>
        scrollTo(0, document.documentElement.scrollHeight),
    );
    await page.mouse.wheel(0, 5000);
    await page.waitForTimeout(200);
    assert.equal(
        await page.evaluate(() => scrollY + innerHeight),
        await page.evaluate(() => document.documentElement.scrollHeight),
    );
    await page.evaluate(() => scrollTo(0, 0));
    await page.locator('#board').hover();
    await page.mouse.wheel(500, 0);
    await page.waitForFunction(
        () => document.querySelector('#board').scrollLeft > 0,
    );
    assert.equal(new URL(page.url()).pathname, '/full-page');
    await page.locator('dialog').evaluate((dialog) => dialog.showModal());
    await page.locator('dialog').hover();
    await page.mouse.wheel(0, 500);
    await page.waitForFunction(
        () => document.querySelector('dialog').scrollTop > 0,
    );
    console.log(
        'PASS: SPA/full-page history, forward history, overlays, short/long scroll bounds, horizontal board, drag and input guards',
    );
} finally {
    await browser.close();
    await new Promise((resolve) => server.close(resolve));
}