"""
Deploy/build helpers for the Prole installer (root-level package).

Encapsulates Xcode tools check and building the native Prole app.
"""
from __future__ import annotations

from pathlib import Path
import platform
import subprocess
from tkinter import messagebox


def check_xcode_tools() -> bool:
    if platform.system() != "Darwin":
        return False
    try:
        result = subprocess.run(["xcrun", "--find", "swiftc"], capture_output=True, text=True, timeout=10)
        return result.returncode == 0
    except Exception:
        return False


def build_prole_app(project_root: Path) -> None:
    if platform.system() != "Darwin":
        raise Exception("Building the macOS app requires macOS.")
    if not check_xcode_tools():
        raise Exception("Xcode Command Line Tools not found. Please run: xcode-select --install")

    # Use the top-level prole-app project directory
    prole_app_dir = Path(project_root) / "prole-app"
    build_script = prole_app_dir / "build.sh"
    if not build_script.exists():
        raise Exception(
            f"Build script not found at {build_script}"
        )

    result = subprocess.run(["bash", str(build_script), "build"], cwd=prole_app_dir, capture_output=True, text=True)
    if result.returncode != 0:
        raise Exception(f"Prole build failed: {result.stderr or result.stdout}")

    app_path = prole_app_dir / "dist" / "Prole.app"
    if not app_path.exists():
        raise Exception("Build completed but Prole.app was not found in dist/")

    try:
        msg = (
            "Prole.app has been built successfully.\n\n"
            f"Location: {app_path}\n\n"
            "Would you like to copy it to /Applications?"
        )
        if messagebox.askyesno("Prole Built", msg):
            dest = Path("/Applications") / "Prole.app"
            subprocess.run(["cp", "-R", str(app_path), str(dest)], check=True)
            messagebox.showinfo("Copied", f"Copied to {dest}")
    except Exception as copy_err:
        print(f"Copy to /Applications failed: {copy_err}")