"""
Background injection into Roblox Studio via UI Automation.
Works when Studio is minimized, behind other windows, or in background.
No user interaction required.
"""
import subprocess, sys, os, time

PS_SCRIPT = r"C:\Users\Admin\bg_inject.ps1"

def inject(code):
    """Inject Lua code into Roblox Studio command bar in the background."""
    # Write code to temp file to avoid quoting issues
    tmp = os.path.join(os.environ["TEMP"], "rbx_bg_inject.lua")
    with open(tmp, "w", encoding="utf-8") as f:
        f.write(code)

    result = subprocess.run(
        ["powershell", "-ExecutionPolicy", "Bypass", "-File", PS_SCRIPT, "-File", tmp],
        capture_output=True, text=True, timeout=30
    )

    output = result.stdout.strip()
    error = result.stderr.strip()

    if "OK" in output:
        return True, output
    else:
        return False, f"{output}\n{error}"

def inject_multi(scripts, label=""):
    """Inject multiple scripts sequentially."""
    for i, (name, code) in enumerate(scripts, 1):
        total = len(scripts)
        prefix = f"[{label}] " if label else ""
        print(f"  {prefix}[{i}/{total}] {name}...", end="", flush=True)

        ok, msg = inject(code)
        if ok:
            print(" OK")
        else:
            print(f" FAILED: {msg}")
            return False
        time.sleep(2.5)  # Wait for Studio to process
    return True

if __name__ == "__main__":
    if len(sys.argv) > 1:
        # Inject a file
        path = sys.argv[1]
        with open(path, "r", encoding="utf-8") as f:
            code = f.read()
        ok, msg = inject(code)
        print(msg)
    else:
        # Test
        ok, msg = inject('print("BG_INJECT_TEST_OK")')
        print(msg)