From fda681331ae3de5abee04042caed994954e1b705 Mon Sep 17 00:00:00 2001 From: Adam Soltys Date: Sun, 13 Sep 2026 09:53:45 -0700 Subject: See the post before you post it. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A draft is written as plain text but doesn't arrive as plain text: a URL ending in .jpg becomes a picture, a youtu.be link becomes a player, a nostr: reference becomes the note it points at, an npub becomes a name. The only way to find out how yours would land was to send it. The eye beside the paperclip — on the composer and on a reply — opens a preview. It runs the draft through noteBody, the very renderer the feed uses, so this isn't a lookalike of the real thing: it IS the real thing, in a dashed frame with a PREVIEW label so it can never be mistaken for the post itself. It follows the draft live while it's open (and only while it's open — a render per keystroke is not free). Attaching a picture opens it by itself. Showing you what you attached is the answer to the question attaching it raises, and it costs no tap. tools/compose-preview-test.js covers both the composer and a reply: the picture renders rather than sitting there as a URL, the YouTube link becomes a player, the preview tracks typing, and it puts itself away. Co-Authored-By: Claude Opus 5 (1M context) Claude-Session: https://claude.ai/code/session_019mrt228Upn9nNCwGixzSLx --- tools/compose-preview-test.js | 143 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 tools/compose-preview-test.js (limited to 'tools') diff --git a/tools/compose-preview-test.js b/tools/compose-preview-test.js new file mode 100644 index 0000000..aac7941 --- /dev/null +++ b/tools/compose-preview-test.js @@ -0,0 +1,143 @@ +// A post is written as plain text but doesn't arrive as plain text: a .jpg +// URL becomes a picture, a youtu.be link becomes a player, a nostr: ref +// becomes the note it points at. Until now the only way to find out how +// yours would land was to post it. +// +// The preview runs the draft through noteBody — the renderer the feed uses — +// so it isn't a lookalike, it's the same thing. This checks that what the +// preview shows is what a real post shows, for the same text. +// +// Run: bun tools/compose-preview-test.js +import puppeteer from 'puppeteer-core'; +import { generateMnemonic } from '@scure/bip39'; +import { wordlist } from '@scure/bip39/wordlists/english'; +import { cacheKeyFor } from '../src/wallet.js'; +import { buildHtml } from '../build.js'; +const sleep = (ms) => new Promise((r) => setTimeout(r, ms)); +let ok = true; +const check = (n, c, d = '') => { console.log(` ${c ? '✓' : '✗'} ${n}${d ? ' — ' + d : ''}`); if (!c) ok = false; }; + +const html = await buildHtml({ minify: true, pwa: false }); +const server = Bun.serve({ port: 5294, fetch: () => new Response(html, { headers: { 'content-type': 'text/html' } }) }); +const browser = await puppeteer.launch({ executablePath: '/usr/bin/google-chrome', headless: 'new', args: ['--no-sandbox'] }); +const page = await browser.newPage(); +const errs = []; +page.on('pageerror', (e) => errs.push(String(e))); +const click = (t) => page.evaluate((x) => { const e = [...document.querySelectorAll('button')].find((n) => n.textContent.trim().toLowerCase().includes(x)); if (e) { e.click(); return true; } return false; }, t); +const waitText = async (x, ms = 25000) => { for (let i = 0; i < ms / 250; i++) { if ((await page.evaluate(() => document.body.innerText)).toLowerCase().includes(x)) return true; await sleep(250); } return false; }; +const type = (sel, v) => page.evaluate((s, val) => { + const e = document.querySelector(s); + if (!e) return false; + e.focus(); e.value = val; + e.dispatchEvent(new Event('input', { bubbles: true })); + return true; +}, sel, v); + +const DRAFT = 'look at this https://coinos.io/punks/7.webp and this https://youtu.be/dQw4w9WgXcQ'; + +try { + await page.setViewport({ width: 390, height: 844 }); + await page.goto('http://localhost:5294/', { waitUntil: 'domcontentloaded' }); + await page.evaluate(() => localStorage.setItem('btc-wallet-network', 'regtest')); + await page.reload({ waitUntil: 'domcontentloaded' }); + await sleep(400); + await click('create a new wallet'); await sleep(500); + await click('import existing'); await sleep(400); + await page.waitForSelector('textarea'); + const mn = generateMnemonic(wordlist); + await page.type('textarea', mn); + await click('open wallet'); + await waitText('receive', 20000); + // a post in the feed, so there is something to reply to + const base = cacheKeyFor(mn + '\n'); + await page.evaluate(([k, n]) => { + localStorage.setItem(k + ':follows', JSON.stringify({ tags: [['p', n.pubkey]], c: '', at: Math.floor(Date.now() / 1000) })); + localStorage.setItem(k + ':feedNotes', JSON.stringify([n])); + }, [base, { + id: 'f'.repeat(63) + '1', pubkey: '3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d', + kind: 1, created_at: Math.floor(Date.now() / 1000) - 60, content: 'a post to answer', tags: [], + }]); + await page.reload({ waitUntil: 'domcontentloaded' }); + await waitText('receive', 20000); + + // into the feed, where posts are written + await page.evaluate(() => { const b = [...document.querySelectorAll('button')].find((e) => /message/i.test(e.getAttribute('aria-label') || '')); if (b) b.click(); }); + await sleep(1000); + await page.evaluate(() => { const e = [...document.querySelectorAll('.item')].find((n) => /feed/i.test(n.textContent)); if (e) e.click(); }); + await sleep(2500); + const opened = await click('new post'); + check('the composer opens', opened && !!(await page.$('textarea'))); + + await type('textarea', DRAFT); + await sleep(400); + check('no preview until it is asked for', !(await page.$('.draft-preview'))); + + await page.evaluate(() => [...document.querySelectorAll('button')] + .find((b) => /preview/i.test(b.getAttribute('aria-label') || ''))?.click()); + await sleep(2500); + const shown = await page.evaluate(() => { + const p = document.querySelector('.draft-preview'); + if (!p) return null; + return { + imgs: [...p.querySelectorAll('img')].map((i) => i.getAttribute('src') || i.src).filter(Boolean), + yt: !!p.querySelector('.yt-embed'), + text: p.innerText, + }; + }); + check('the preview appears', !!shown); + check('...with the picture rendered, not its URL', !!shown && shown.imgs.some((u) => /punks\/7\.webp/.test(u)), + shown ? shown.imgs.length + ' image(s)' : ''); + check('...and the YouTube link as a player', !!shown && shown.yt); + check('...and the raw URLs are not left lying in the text', !!shown && !shown.text.includes('https://youtu.be/'), + shown ? JSON.stringify(shown.text.slice(0, 60)) : ''); + + // live: keep typing and the preview follows + await type('textarea', DRAFT + ' plus a word'); + await sleep(900); + check('it follows the draft as you type', + /plus a word/.test(await page.evaluate(() => (document.querySelector('.draft-preview') || {}).innerText || ''))); + + // and it puts itself away + await page.evaluate(() => [...document.querySelectorAll('button')] + .find((b) => /hide preview/i.test(b.getAttribute('aria-label') || ''))?.click()); + await sleep(500); + check('and it closes again', !(await page.$('.draft-preview'))); + + // ---- and the same thing on a reply ------------------------------------- + await click('cancel'); + await sleep(400); + // open a thread: any post in the feed does + const intoThread = await page.evaluate(() => { + const r = document.querySelector('.notes-feed > .row'); + if (!r) return false; + r.click(); + return true; + }); + if (!intoThread) { + console.log(' — no post in the feed to reply to, skipping the reply half'); + } else { + await sleep(2500); + const box = await page.$('.thread-reply-input'); + check('a thread has a reply box', !!box); + if (box) { + await type('.thread-reply-input', 'my answer https://coinos.io/punks/3.webp'); + await sleep(300); + check('a reply has no preview until asked either', !(await page.$('.draft-preview'))); + await page.evaluate(() => [...document.querySelectorAll('button')] + .find((b) => /^preview$/i.test(b.getAttribute('aria-label') || ''))?.click()); + await sleep(1500); + const rp = await page.evaluate(() => { + const p = document.querySelector('.draft-preview'); + return p ? { imgs: p.querySelectorAll('img').length, text: p.innerText } : null; + }); + check('the reply previews the same way', !!rp && rp.imgs > 0, + rp ? rp.imgs + ' image(s)' : 'no preview'); + check('...showing the picture instead of its URL', !!rp && !rp.text.includes('punks/3.webp'), + rp ? JSON.stringify(rp.text.slice(0, 50)) : ''); + } + } + + check('no page errors', errs.length === 0, errs.slice(0, 2).join(' | ')); +} finally { await browser.close(); server.stop(true); } +console.log(ok ? '\n✅ what you see is what they get' : '\n❌ failed'); +process.exit(ok ? 0 : 1); -- cgit v1.2.3