#!/usr/bin/env python3
"""
Generiert Windows-Versionsinformationen für PyInstaller

Liest Version aus pyproject.toml und erstellt version_info.txt
"""

import tomllib
from pathlib import Path
from datetime import datetime


def parse_version(version_str: str) -> tuple[int, int, int, int]:
    """Parst Version-String (z.B. '0.1.0') zu Tuple (0, 1, 0, 0)."""
    parts = version_str.split('.')
    major = int(parts[0]) if len(parts) > 0 else 0
    minor = int(parts[1]) if len(parts) > 1 else 0
    patch = int(parts[2]) if len(parts) > 2 else 0
    build = 0  # Könnte aus Git-Commit-Count generiert werden
    return (major, minor, patch, build)


def create_version_info(project_root: Path):
    """Erstellt version_info.txt für PyInstaller."""

    # pyproject.toml lesen
    pyproject_path = project_root / "pyproject.toml"
    with open(pyproject_path, 'rb') as f:
        pyproject = tomllib.load(f)

    project = pyproject['project']
    version = project['version']
    name = project['name']
    description = project['description']

    # Version parsen
    file_version = parse_version(version)
    product_version = file_version

    # Jahr für Copyright
    year = datetime.now().year

    # version_info.txt Content
    version_info_content = f"""# UTF-8
#
# Generiert automatisch von create_version_info.py
# NICHT manuell bearbeiten!
#

VSVersionInfo(
  ffi=FixedFileInfo(
    # filevers und prodvers als Tuple: (1, 0, 0, 0)
    filevers={file_version},
    prodvers={product_version},
    # Maske für gültige Bits in filevers und prodvers
    mask=0x3f,
    # Flags - kann VS_FF_DEBUG, VS_FF_PRERELEASE, etc. enthalten
    flags=0x0,
    # Betriebssystem - VOS_NT_WINDOWS32
    OS=0x40004,
    # Dateityp - VFT_APP (Anwendung)
    fileType=0x1,
    # Subtyp (nicht verwendet für VFT_APP)
    subtype=0x0,
    # Datumsstempel
    date=(0, 0)
  ),
  kids=[
    StringFileInfo(
      [
      StringTable(
        '040904B0',  # Deutsch (0x0409 = Englisch, 0x0407 = Deutsch), Unicode
        [StringStruct('CompanyName', 'Ihr Name/Organisation'),
        StringStruct('FileDescription', '{description}'),
        StringStruct('FileVersion', '{version}'),
        StringStruct('InternalName', '{name}'),
        StringStruct('LegalCopyright', '© {year} Ihr Name. Alle Rechte vorbehalten.'),
        StringStruct('OriginalFilename', '{name}.exe'),
        StringStruct('ProductName', '{name}'),
        StringStruct('ProductVersion', '{version}')])
      ]),
    VarFileInfo([VarStruct('Translation', [1033, 1200])])  # Englisch, Unicode
  ]
)
"""

    # version_info.txt schreiben
    version_info_path = project_root / "version_info.txt"
    version_info_path.write_text(version_info_content, encoding='utf-8')

    print(f"✓ version_info.txt erstellt")
    print(f"  Version: {version}")
    print(f"  Datei: {version_info_path}")


def main():
    project_root = Path(__file__).parent
    create_version_info(project_root)


if __name__ == "__main__":
    main()