"""Link previews: a page with OpenGraph tags and a direct picture link."""
import asyncio, functools, http.server, os, shutil, tempfile, threading
from playwright.async_api import async_playwright
from browser import login, BASE, OUT

HERE = os.path.dirname(os.path.abspath(__file__))
PORT = 8765
PAGE = """<!doctype html><html><head>
<title>Fallback title</title>
<meta property="og:title" content="A very interesting article">
<meta property="og:description" content="Everything you always wanted to know about link previews.">
<meta property="og:image" content="/test.png">
<meta property="og:site_name" content="Example News">
<link rel="icon" href="/test.png">
</head><body>Hello</body></html>"""


def serve():
    root = tempfile.mkdtemp()
    with open(os.path.join(root, "article.html"), "w") as f:
        f.write(PAGE)
    shutil.copy(os.path.join(HERE, "test.png"), os.path.join(root, "test.png"))
    handler = functools.partial(http.server.SimpleHTTPRequestHandler, directory=root)
    server = http.server.ThreadingHTTPServer(("127.0.0.1", PORT), handler)
    threading.Thread(target=server.serve_forever, daemon=True).start()
    return server


async def main():
    server = serve()
    async with async_playwright() as p:
        browser = await p.chromium.launch()
        _, alice, aerr = await login(browser, "alice@localhost", "alicepass", "previewalice")
        _, bob, berr = await login(browser, "bob@localhost", "bobpass", "previewbob")

        await alice.goto(BASE + "/chat/bob@localhost")
        await alice.wait_for_selector("#chat_textarea", timeout=15000)
        await bob.goto(BASE + "/chat/alice@localhost")
        await bob.wait_for_selector("#chat_textarea", timeout=15000)
        await bob.wait_for_timeout(1500)

        for text in (f"Have a look http://127.0.0.1:{PORT}/article.html", f"http://127.0.0.1:{PORT}/test.png"):
            await bob.fill("#chat_textarea", text)
            await bob.press("#chat_textarea", "Enter")
            await bob.wait_for_timeout(1500)
        await alice.wait_for_timeout(4000)

        for name, page in (("alice", alice), ("bob", bob)):
            await page.screenshot(path=f"{OUT}/preview_{name}.png")
            cards = await page.locator("#chat_widget ul.list.card").all_inner_texts()
            pictures = await page.locator("#chat_widget div.bubble img").count()
            print(name, "cards:", [c.replace("\n", " | ")[:120] for c in cards[-2:]], "pictures:", pictures)

        for e in aerr + berr:
            print(e)
        await browser.close()
    server.shutdown()


asyncio.run(main())