host.nfc_tool.main

 1"""Entry point for the NFC Battery Tag Tool GUI.
 2
 3Usage:
 4    python -m host.nfc_tool
 5"""
 6
 7import sys
 8from pathlib import Path
 9
10_HAS_TKINTER = True
11try:
12    import tkinter as _tkinter  # noqa: F401
13except ImportError:
14    _HAS_TKINTER = False
15
16
17def _get_project_root():
18    """Return the project root, handling PyInstaller frozen bundles."""
19    if getattr(sys, 'frozen', False):
20        return Path(sys._MEIPASS)
21    return Path(__file__).resolve().parent.parent.parent
22
23
24# Ensure project root is importable (for utils.nfc)
25_project_root = _get_project_root()
26if str(_project_root) not in sys.path:
27    sys.path.insert(0, str(_project_root))
28
29
30def main():
31    if not _HAS_TKINTER:
32        print(
33            "Error: tkinter is not installed.\n"
34            "On macOS with Homebrew Python, run:\n"
35            "    brew install python-tk\n"
36            "Then retry.",
37            file=sys.stderr,
38        )
39        sys.exit(1)
40
41    from host.nfc_tool.app import NfcToolApp
42
43    app = NfcToolApp(project_root=_project_root)
44    app.mainloop()
45
46
47if __name__ == "__main__":
48    main()