# -*- mode: python ; coding: utf-8 -*-

import os
import subprocess
import sys
from pathlib import Path
from datetime import datetime


spec_dir = Path(SPECPATH)


def git_build_ref():
    try:
        dirty = subprocess.check_output(
            ['git', 'status', '--porcelain', '--untracked-files=normal'],
            cwd=spec_dir,
            stderr=subprocess.DEVNULL,
            text=True,
        )
        if dirty.strip():
            return datetime.now().strftime('%H%M%S-%d%m%Y')
    except (OSError, subprocess.CalledProcessError):
        return datetime.now().strftime('%H%M%S-%d%m%Y')
    try:
        tag = subprocess.check_output(
            ['git', 'describe', '--tags', '--exact-match', 'HEAD'],
            cwd=spec_dir,
            stderr=subprocess.DEVNULL,
            text=True,
        ).strip()
        if tag:
            return tag
    except (OSError, subprocess.CalledProcessError):
        pass
    try:
        commit = subprocess.check_output(
            ['git', 'rev-parse', '--short', 'HEAD'],
            cwd=spec_dir,
            stderr=subprocess.DEVNULL,
            text=True,
        ).strip()
        if commit:
            return commit
    except (OSError, subprocess.CalledProcessError):
        pass
    return 'untagged'


def _build_library_roots():
    windows_root = Path(os.environ.get('SystemRoot', r'C:\Windows')).resolve()
    return tuple(dict.fromkeys(
        path.resolve() for path in (
            Path(sys.executable).parent,
            Path(sys.prefix),
            Path(sys.base_prefix),
            Path(sys.base_prefix) / 'DLLs',
            windows_root / 'System32',
            windows_root,
        ) if path.is_dir()
    ))


def _set_isolated_build_path(roots):
    # Analysis searches PATH for DLLs. Unrelated tools may provide incompatible
    # copies of the Windows runtime or ICU libraries there.
    os.environ['PATH'] = os.pathsep.join(str(root) for root in roots)


def _check_binary_sources(binaries, roots):
    foreign = [
        (name, source)
        for name, source, kind in binaries
        if kind == 'BINARY'
        and not any(Path(source).resolve().is_relative_to(root) for root in roots)
    ]
    if foreign:
        details = '\n'.join(f'{name}: {source}' for name, source in foreign[:10])
        raise RuntimeError(f'Build contains DLLs outside Python and Windows:\n{details}')


app_name = f'LEDMapper-{git_build_ref()}'
library_roots = _build_library_roots()
_set_isolated_build_path(library_roots)
build_version_path = spec_dir.parent / 'build' / 'ledmapper-build-version.txt'
build_version_path.parent.mkdir(parents=True, exist_ok=True)
build_version_path.write_text(app_name.removeprefix('LEDMapper-'), encoding='utf-8')


a = Analysis(
    [str(spec_dir / 'main.py')],
    pathex=[str(spec_dir), str(spec_dir.parent)],
    binaries=[],
    datas=[(str(spec_dir / 'assets'), 'assets'), (str(build_version_path), '.')],
    hiddenimports=[
        'canvas',
        'background_image_loader',
        'background_dialog',
        'icons',
        'localization',
        'main_window',
        'mapping_renderer',
        'models',
        'panel_mapping_generator',
        'settings',
        'settings_dialog',
        'theme',
        'unfolding',
        'update_service',
        'version',
    ],
    hookspath=[],
    hooksconfig={},
    runtime_hooks=[],
    excludes=[],
    noarchive=False,
    optimize=0,
)
_check_binary_sources(a.binaries, library_roots)
pyz = PYZ(a.pure)

exe = EXE(
    pyz,
    a.scripts,
    a.binaries,
    a.datas,
    [],
    name=app_name,
    debug=False,
    bootloader_ignore_signals=False,
    strip=False,
    upx=True,
    upx_exclude=[],
    runtime_tmpdir=None,
    console=False,
    disable_windowed_traceback=False,
    argv_emulation=False,
    target_arch=None,
    codesign_identity=None,
    entitlements_file=None,
    icon=str(spec_dir / 'assets' / 'ledmapper.ico'),
)