import json
import os
from pathlib import Path
import plistlib
import selectors
import shutil
import subprocess
import sys
import tempfile
import uuid


app_source, library, fixtures = map(lambda path: Path(path).resolve(), sys.argv[1:])
with tempfile.TemporaryDirectory(prefix="terebi-startup-") as directory:
    root = Path(directory)
    app = root / "terebi.app"
    shutil.copytree(app_source, app)
    identifier = "local.personal.terebi.startup-check." + uuid.uuid4().hex
    info_path = app / "Contents/Info.plist"
    info = plistlib.loads(info_path.read_bytes())
    info["CFBundleIdentifier"] = identifier
    info_path.write_bytes(plistlib.dumps(info))
    shutil.copy2(library, app / "Contents/Frameworks/libterebi-player.dylib")
    pipe = root / "result.fifo"
    os.mkfifo(pipe)
    descriptor = os.open(pipe, os.O_RDONLY | os.O_NONBLOCK)
    launch = None
    try:
        with selectors.DefaultSelector() as selector:
            selector.register(descriptor, selectors.EVENT_READ)
            launch = subprocess.Popen(
                ["open", "-g", "-n", "-W", str(app), "--args", str(pipe), str(fixtures)],
                stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True,
            )
            if not selector.select(timeout=30):
                raise RuntimeError("packaged app did not report its startup state")
            result = json.loads(os.read(descriptor, 4096))
        stdout, stderr = launch.communicate(timeout=10)
        if launch.returncode != 0 or not result["passed"] or result["bundleIdentifier"] != identifier:
            raise RuntimeError(f"packaged startup failed: {result}; {stdout}{stderr}")
        print("PASS packaged bootstrap: registered app PID/identity, in-process player load, actual playback and Now Playing")
    finally:
        os.close(descriptor)
        subprocess.run(
            ["xcrun", "swift", "-e",
             'import AppKit; for app in NSWorkspace.shared.runningApplications { '
             'if app.bundleIdentifier == CommandLine.arguments[1] { app.forceTerminate() } }',
             identifier],
            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
        )
        if launch is not None and launch.poll() is None:
            launch.terminate()
            launch.communicate(timeout=5)
        subprocess.run(
            ["/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister", "-u", str(app)],
            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
        )
        for domain in [identifier, identifier + ".history"]:
            subprocess.run(["defaults", "delete", domain], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False)