"""Zion PM - browser runner (Playwright). The universal hand: drive a real Chromium to read,

fill, click, post, screenshot, extract. Read-only specs run inline (full-auto, for research);

specs that submit/post/buy are queued to the outbox and run here only after Zion approves.

Spec (JSON via stdin or a file path arg):

  {"headless": true, "steps": [

     {"action":"goto","url":"https://..."},

     {"action":"fill","selector":"#email","value":"..."},

     {"action":"click","selector":"button[type=submit]"},

     {"action":"wait","ms":1500},

     {"action":"extract","selector":".result","name":"results"},

     {"action":"screenshot","path":"/tmp/shot.png"}

  ]}

Prints JSON: {"ok":bool,"extracted":{...},"error":str|null,"shots":[...]}

Install on the RUNNER host (local ext4, NOT the noexec share):

  pip install --user playwright && python3 -m playwright install chromium

"""

import json, sys

def load_spec():

    if len(sys.argv) > 1:

        return json.load(open(sys.argv[1]))

    return json.load(sys.stdin)

def main():

    spec = load_spec()

    out = {"ok": False, "extracted": {}, "shots": [], "error": None}

    try:

        from playwright.sync_api import sync_playwright

    except Exception:

        out["error"] = "playwright not installed: pip install --user playwright && python3 -m playwright install chromium"

        print(json.dumps(out)); return

    try:

        with sync_playwright() as p:

            browser = p.chromium.launch(headless=spec.get("headless", True))

            page = browser.new_page()

            for s in spec.get("steps", []):

                a = s.get("action")

                if a == "goto": page.goto(s["url"], wait_until="domcontentloaded")

                elif a == "fill": page.fill(s["selector"], s["value"])

                elif a == "click": page.click(s["selector"])

                elif a == "wait": page.wait_for_timeout(int(s.get("ms", 1000)))

                elif a == "waitfor": page.wait_for_selector(s["selector"], timeout=int(s.get("timeout", 15000)))

                elif a == "extract":

                    els = page.query_selector_all(s["selector"])

                    out["extracted"][s.get("name", s["selector"])] = [e.inner_text() for e in els]

                elif a == "screenshot":

                    page.screenshot(path=s["path"]); out["shots"].append(s["path"])

                elif a == "press": page.press(s["selector"], s["key"])

            browser.close()

        out["ok"] = True

    except Exception as e:

        out["error"] = str(e)

    print(json.dumps(out))

if __name__ == "__main__":

    main()