#!/opt/pw/bin/python
"""bind.py — the household's self-bind page, in real Chromium (rehearsal 2026-10-20, B2).

Env (handed in by brun.sh, never on a command line): BIND_TOKEN, PAIRING, PASS.
  --typo  : change ONE character of PASS before sending (a household's typo; the value is never printed)
Screenshots are taken BEFORE the fields are filled and AFTER the answer page loads — the passphrase field
is type=text, so a filled-form screenshot would show it. Prints the answer page's visible text.
usage: bind.py OUTPREFIX [--typo] [--size phone|desktop] [--lang hu|en] [--get-only]
"""
import os, re, sys
from playwright.sync_api import sync_playwright

out = sys.argv[1]; args = sys.argv[2:]
size = args[args.index("--size") + 1] if "--size" in args else "phone"
lang = args[args.index("--lang") + 1] if "--lang" in args else "hu"
vp = {"phone": dict(viewport={"width": 390, "height": 844}, device_scale_factor=2, is_mobile=True, has_touch=True),
      "desktop": dict(viewport={"width": 1366, "height": 768})}[size]
loc = {"hu": "hu-HU", "en": "en-US"}[lang]
url = "https://hub.felhom.eu/bind/" + os.environ["BIND_TOKEN"]
with sync_playwright() as p:
    b = p.chromium.launch(executable_path="/usr/bin/chromium", args=["--no-sandbox"])
    ctx = b.new_context(locale=loc, extra_http_headers={"Accept-Language": loc}, timezone_id="Europe/Budapest", **vp)
    pg = ctx.new_page()
    r = pg.goto(url, wait_until="networkidle")
    pg.screenshot(path=f"{out}-1-open-{size}-{lang}.png", full_page=True)
    print("GET", r.status, pg.title())
    body = pg.inner_text("body")
    print(re.sub(r"\s+", " ", body)[:600])
    if "--get-only" in args or not pg.locator("#pairing_code").count():
        b.close(); sys.exit(0)
    pw = os.environ["PASS"]
    if "--typo" in args:  # swap one inner letter for its neighbour in the alphabet
        i = len(pw) // 2
        while not pw[i].isalpha():
            i += 1
        pw = pw[:i] + ("b" if pw[i] != "b" else "c") + pw[i + 1:]
    pg.fill("#pairing_code", os.environ["PAIRING"])
    pg.fill("#passphrase", pw)
    with pg.expect_navigation(wait_until="networkidle"):
        pg.click("button[type=submit]")
    # blank both inputs before the screenshot, in case a re-rendered form echoes a value
    pg.evaluate("document.querySelectorAll('input').forEach(e => e.value = '')")
    pg.screenshot(path=f"{out}-2-answer-{size}-{lang}.png", full_page=True)
    print("POST answer:", re.sub(r"\s+", " ", pg.inner_text("body"))[:600])
    b.close()