# Copyright (C) 2018 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
from __future__ import annotations

import functools
import os
import tempfile
import platform

from pathlib import Path

from ..log import log
from ..config import config
from ..options import OPTION
from ..utils import (copydir, copyfile, copy_qt_metatypes,
                     download_and_extract_7z, filter_match, makefile, in_coin,
                     coin_job_id)
from .. import PYSIDE, SHIBOKEN, PYSIDE_WINDOWS_BIN_TOOLS, PYSIDE_MULTIMEDIA_LIBS


def prepare_packages_win32(pyside_build, _vars):
    # For now, debug symbols will not be shipped into the package.
    copy_pdbs = False
    pdbs = []
    if (pyside_build.debug or pyside_build.build_type == 'RelWithDebInfo') and copy_pdbs:
        pdbs = ['*.pdb']

    destination_dir = Path("{st_build_dir}/{st_package_name}".format(**_vars))
    destination_qt_dir = destination_dir
    log.info("Copying files...")

    # <install>/lib/site-packages/{st_package_name}/* ->
    # <setup>/{st_package_name}
    # This copies the module .pyd files and various .py files
    # (__init__, config, git version, etc.)
    copydir(
        "{site_packages_dir}/{st_package_name}", destination_dir,
        _vars=_vars)

    if config.is_internal_shiboken_module_build():
        # <build>/shiboken6/doc/html/* ->
        #   <setup>/{st_package_name}/docs/shiboken6
        copydir(
            f"{{build_dir}}/{SHIBOKEN}/doc/html",
            f"{{st_build_dir}}/{{st_package_name}}/docs/{SHIBOKEN}",
            force=False, _vars=_vars)

        # <install>/bin/*.dll -> {st_package_name}/
        copydir(
            "{install_dir}/bin/", destination_qt_dir,
            _filter=["shiboken*.dll"],
            recursive=False, _vars=_vars)

        # <install>/lib/*.lib -> {st_package_name}/
        copydir(
            "{install_dir}/lib/", destination_qt_dir,
            _filter=["shiboken*.lib"],
            recursive=False, _vars=_vars)

        # @TODO: Fix this .pdb file not to overwrite release
        # {shibokengenerator}.pdb file.
        # Task-number: PYSIDE-615
        copydir(
            f"{{build_dir}}/{SHIBOKEN}/shibokenmodule", destination_dir,
            _filter=pdbs,
            recursive=False, _vars=_vars)

        # pdb files for libshiboken and libpyside
        copydir(
            f"{{build_dir}}/{SHIBOKEN}/libshiboken", destination_dir,
            _filter=pdbs,
            recursive=False, _vars=_vars)

    if config.is_internal_shiboken_generator_build():
        # <install>/bin/*.dll -> {st_package_name}/
        copydir(
            "{install_dir}/bin/", destination_dir,
            _filter=["shiboken*.exe"],
            recursive=False, _vars=_vars)

        # Used to create scripts directory.
        makefile(f"{destination_dir}/scripts/shiboken_tool.py", _vars=_vars)

        # For setting up setuptools entry points.
        copyfile(
            "{install_dir}/bin/shiboken_tool.py",
            f"{destination_dir}/scripts/shiboken_tool.py",
            force=False, _vars=_vars)

        # @TODO: Fix this .pdb file not to overwrite release
        # {shibokenmodule}.pdb file.
        # Task-number: PYSIDE-615
        copydir(
            f"{{build_dir}}/{SHIBOKEN}/generator", destination_dir,
            _filter=pdbs,
            recursive=False, _vars=_vars)

    if config.is_internal_shiboken_generator_build() or config.is_internal_pyside_build():
        # <install>/include/* -> <setup>/{st_package_name}/include
        copydir(
            "{install_dir}/include/{cmake_package_name}",
            destination_dir / "include",
            _vars=_vars)

    if config.is_internal_pyside_build():
        # <build>/pyside6/{st_package_name}/*.pdb ->
        # <setup>/{st_package_name}
        copydir(
            f"{{build_dir}}/{PYSIDE}/{{st_package_name}}", destination_dir,
            _filter=pdbs,
            recursive=False, _vars=_vars)

        makefile(f"{destination_dir}/scripts/__init__.py", _vars=_vars)

        # For setting up setuptools entry points
        for script in ("pyside_tool.py", "metaobjectdump.py", "project.py", "qml.py",
                       "qtpy2cpp.py", "deploy.py"):
            src = f"{{install_dir}}/bin/{script}"
            target = f"{{st_build_dir}}/{{st_package_name}}/scripts/{script}"
            copyfile(src, target, force=False, _vars=_vars)

        for script_dir in ("qtpy2cpp_lib", "deploy_lib", "project_lib"):
            src = f"{{install_dir}}/bin/{script_dir}"
            target = f"{{st_build_dir}}/{{st_package_name}}/scripts/{script_dir}"
            # Exclude subdirectory tests
            copydir(src, target, _filter=["*.py", "*.spec", "*.jpg", "*.icns", "*.ico"],
                    recursive=False, _vars=_vars)

        # <install>/bin/*.exe,*.dll -> {st_package_name}/
        filters = ["pyside*.exe", "pyside*.dll"]
        if not OPTION['NO_QT_TOOLS']:
            filters.extend([f"{tool}.exe" for tool in PYSIDE_WINDOWS_BIN_TOOLS])
        copydir("{install_dir}/bin/", destination_qt_dir,
                _filter=filters,
                recursive=False, _vars=_vars)

        copy_qt_metatypes(destination_qt_dir, _vars)

        # <install>/lib/*.lib -> {st_package_name}/
        copydir(
            "{install_dir}/lib/", destination_dir,
            _filter=["pyside*.lib"],
            recursive=False, _vars=_vars)

        copydir("{qt_module_json_files_dir}",
                destination_qt_dir / "modules",
                _filter=["*.json"], _vars=_vars)

        # <install>/share/{st_package_name}/typesystems/* ->
        #   <setup>/{st_package_name}/typesystems
        copydir(
            "{install_dir}/share/{st_package_name}/typesystems",
            destination_dir / "typesystems",
            _vars=_vars)

        # <install>/share/{st_package_name}/glue/* ->
        #   <setup>/{st_package_name}/glue
        for glue in ['glue', 'doc']:
            source = "{install_dir}/share/{st_package_name}/" + glue
            copydir(source, destination_dir / glue, _vars=_vars)

        # <source>/pyside6/{st_package_name}/support/* ->
        #   <setup>/{st_package_name}/support/*
        copydir(
            f"{{build_dir}}/{PYSIDE}/{{st_package_name}}/support",
            destination_dir / "support",
            _vars=_vars)

        # <source>/pyside6/{st_package_name}/QtAsyncio/* ->
        #   <setup>/{st_package_name}/QtAsyncio/*
        copydir(
            "{site_packages_dir}/{st_package_name}/QtAsyncio",
            "{st_build_dir}/{st_package_name}/QtAsyncio",
            _vars=_vars)

        # <source>/pyside6/{st_package_name}/*.pyi ->
        #   <setup>/{st_package_name}/*.pyi
        copydir(
            f"{{build_dir}}/{PYSIDE}/{{st_package_name}}", destination_dir,
            _filter=["*.pyi", "py.typed"],
            _vars=_vars)

        copydir(
            f"{{build_dir}}/{PYSIDE}/libpyside", destination_dir,
            _filter=pdbs,
            recursive=False, _vars=_vars)

        if _vars['ssl_libs_dir']:
            # <ssl_libs>/* -> <setup>/{st_package_name}/openssl
            copydir("{ssl_libs_dir}", destination_dir / "openssl",
                    _filter=[
                        "libeay32.dll",
                        "ssleay32.dll"],
                    force=False, _vars=_vars)

    if config.is_internal_shiboken_module_build():
        # The C++ std library dlls need to be packaged with the
        # shiboken module, because libshiboken uses C++ code.
        download_qt_dependency_dlls(_vars, destination_dir, msvc_redist)

    if config.is_internal_pyside_build() or config.is_internal_shiboken_generator_build():
        copy_qt_artifacts(pyside_build, destination_qt_dir, copy_pdbs, _vars)
        download_qt_dependency_dlls(_vars, destination_dir, msvc_redist)


# MSVC redistributable file list.
msvc_redist = [
    "concrt140.dll",
    "msvcp140.dll",
    "vcamp140.dll",
    "vccorlib140.dll",
    "vcomp140.dll",
    "vcruntime140.dll",
    "vcruntime140_1.dll",
    "msvcp140_1.dll",
    "msvcp140_2.dll",
    "msvcp140_codecvt_ids.dll"
]


def get_cache_dir():
    """Return the name of a cache directory for storing artifacts for repetitive
       runs of setup.py depending on COIN_UNIQUE_JOB_ID."""
    job_id = coin_job_id()
    dir = tempfile.gettempdir() + os.sep + "pyside" + job_id[0:job_id.find('-')]
    return Path(dir)


def download_and_extract_7z_to_cache(url, cache_dir):
    """Download the artifacts to the cache directory unless it exists."""
    if not cache_dir.is_dir():
        cache_dir.mkdir(parents=True)
    if not list(cache_dir.glob("*.dll")):
        download_and_extract_7z(url, cache_dir)


def download_qt_dependency_dlls(_vars, destination_qt_dir, artifacts):
    # Extract Qt dependency dlls when building on Qt CI.
    if not in_coin():
        log.info("Qt dependency DLLs will not be downloaded and extracted.")
        return

    cache_dir = get_cache_dir()
    redist_url = "https://download.qt.io/development_releases/prebuilt/vcredist/"
    zip_file = "pyside_qt_deps_684_64_2022.7z"
    if platform.machine() == "ARM64":
        zip_file = "pyside_qt_deps_690_arm_2022.7z"
    try:
        download_and_extract_7z_to_cache(redist_url + zip_file, cache_dir)
    except Exception as e:
        log.warning(f"Download failed: {type(e).__name__}: {e}")
        log.warning("download.qt.io is down, try with mirror")
        redist_url = "https://master.qt.io/development_releases/prebuilt/vcredist/"
        download_and_extract_7z_to_cache(redist_url + zip_file, cache_dir)
    copydir(cache_dir, destination_qt_dir, _filter=artifacts, recursive=False, _vars=_vars)


def copy_qt_artifacts(pyside_build, destination_qt_dir, copy_pdbs, _vars):
    built_modules = pyside_build.get_built_pyside_config(_vars)['built_modules']

    constrain_modules = None
    copy_plugins = True
    copy_qml = True
    copy_translations = True
    copy_qt_conf = True
    copy_qt_permanent_artifacts = True
    copy_clang = False

    if config.is_internal_shiboken_generator_build():
        constrain_modules = ["Core", "Network", "Xml", "XmlPatterns"]
        copy_plugins = False
        copy_qml = False
        copy_translations = False
        copy_qt_conf = False
        copy_qt_permanent_artifacts = False

    # <qt>/bin/*.dll and Qt *.exe -> <setup>/{st_package_name}
    qt_multimedia_artifacts_permanent = [f"{lib}-*.dll" for lib in PYSIDE_MULTIMEDIA_LIBS]

    def qt_rhi_artifacts_permanent():
        result = ["opengl*.dll"]
        if pyside_build.qtinfo.build_type != 'debug_and_release':
            suffix = '*'
        elif pyside_build.debug:
            suffix = 'd'
        else:
            suffix = ''
        result.append(f"libEGL{suffix}.dll")  # Needed in Qt 6 (ANGLE)?
        result.append(f"libGLESv2{suffix}.dll")
        return result

    if copy_qt_permanent_artifacts:
        download_qt_dependency_dlls(_vars, destination_qt_dir, qt_rhi_artifacts_permanent())
        if not copydir("{qt_bin_dir}", destination_qt_dir,
                       _filter=qt_multimedia_artifacts_permanent,
                       recursive=False, _vars=_vars):
            msg = "The multimedia artifacts were not found."
            log.warning(msg)
            if in_coin():  # Allow local developer builds without -DQT_DEPLOY_FFMPEG...
                raise FileNotFoundError(msg)

    # <qt>/bin/*.dll and Qt *.pdbs -> <setup>/{st_package_name} part two
    # File filter to copy only debug or only release files.
    if constrain_modules:
        qt_dll_patterns = [f"Qt6{x}{{}}.dll" for x in constrain_modules]
        if copy_pdbs:
            qt_dll_patterns += [f"Qt6{x}{{}}.pdb" for x in constrain_modules]
    else:
        qt_dll_patterns = ["Qt6*{}.dll", "lib*{}.dll"]
        if copy_pdbs:
            qt_dll_patterns += ["Qt6*{}.pdb", "lib*{}.pdb"]

    def qt_build_config_filter(patterns, file_name, file_full_path):
        release = [a.format('') for a in patterns]
        debug = [a.format('d') for a in patterns]

        # If qt is not a debug_and_release build, that means there
        # is only one set of shared libraries, so we can just copy
        # them.
        if pyside_build.qtinfo.build_type != 'debug_and_release':
            if filter_match(file_name, release):
                return True
            return False

        # Setup Paths
        file_name = Path(file_name)
        file_full_path = Path(file_full_path)

        # In debug_and_release case, choosing which files to copy
        # is more difficult. We want to copy only the files that
        # match the PySide6 build type. So if PySide6 is built in
        # debug mode, we want to copy only Qt debug libraries
        # (ending with "d.dll"). Or vice versa. The problem is that
        # some libraries have "d" as the last character of the
        # actual library name (for example Qt6Gamepad.dll and
        # Qt6Gamepadd.dll). So we can't just match a pattern ending
        # in "d". Instead we check if there exists a file with the
        # same name plus an additional "d" at the end, and using
        # that information we can judge if the currently processed
        # file is a debug or release file.

        # e.g. ["Qt6Cored", ".dll"]
        file_base_name = file_name.stem
        file_ext = file_name.suffix
        # e.g. "/home/work/qt/qtbase/bin"
        file_path_dir_name = file_full_path.parent
        # e.g. "Qt6Coredd"
        maybe_debug_name = f"{file_base_name}d"
        if pyside_build.debug:
            _filter = debug

            def predicate(path):
                return not path.exists()
        else:
            _filter = release

            def predicate(path):
                return path.exists()
        # e.g. "/home/work/qt/qtbase/bin/Qt6Coredd.dll"
        other_config_path = file_path_dir_name / (maybe_debug_name + file_ext)

        if (filter_match(file_name, _filter) and predicate(other_config_path)):
            return True
        return False

    qt_dll_filter = functools.partial(qt_build_config_filter,
                                      qt_dll_patterns)
    copydir("{qt_bin_dir}", destination_qt_dir,
            file_filter_function=qt_dll_filter,
            recursive=False, _vars=_vars)

    if copy_plugins:
        is_pypy = "pypy" in pyside_build.build_classifiers
        # <qt>/plugins/* -> <setup>/{st_package_name}/plugins
        plugins_target = f"{destination_qt_dir}/plugins"
        plugin_dll_patterns = ["*{}.dll"]
        pdb_pattern = "*{}.pdb"
        if copy_pdbs:
            plugin_dll_patterns += [pdb_pattern]
        plugin_dll_filter = functools.partial(qt_build_config_filter, plugin_dll_patterns)
        copydir("{qt_plugins_dir}", plugins_target,
                file_filter_function=plugin_dll_filter,
                _vars=_vars)
        if not is_pypy:
            copydir("{install_dir}/plugins/designer",
                    f"{plugins_target}/designer",
                    _filter=["*.dll"],
                    recursive=False,
                    _vars=_vars)

    if copy_translations:
        # <qt>/translations/* -> <setup>/{st_package_name}/translations
        copydir("{qt_translations_dir}", f"{destination_qt_dir}/translations",
                _filter=["*.qm", "*.pak"],
                force=False,
                _vars=_vars)

    if copy_qml:
        # <qt>/qml/* -> <setup>/{st_package_name}/qml
        qml_dll_patterns = ["*{}.dll"]
        qml_ignore_patterns = qml_dll_patterns + [pdb_pattern]
        qml_ignore = [a.format('') for a in qml_ignore_patterns]

        # Copy all files that are not dlls and pdbs (.qml, qmldir).
        copydir("{qt_qml_dir}", f"{destination_qt_dir}/qml",
                ignore=qml_ignore,
                force=False,
                recursive=True,
                _vars=_vars)

        if copy_pdbs:
            qml_dll_patterns += [pdb_pattern]
        qml_dll_filter = functools.partial(qt_build_config_filter, qml_dll_patterns)

        # Copy all dlls (and possibly pdbs).
        copydir("{qt_qml_dir}", f"{destination_qt_dir}/qml",
                file_filter_function=qml_dll_filter,
                force=False,
                recursive=True,
                _vars=_vars)

    if pyside_build.is_webengine_built(built_modules):
        copydir("{qt_data_dir}/resources", f"{destination_qt_dir}/resources",
                _filter=None,
                recursive=False,
                _vars=_vars)

        _ext = "d" if pyside_build.debug else ""
        _filter = [f"QtWebEngineProcess{_ext}.exe"]
        copydir("{qt_bin_dir}", destination_qt_dir,
                _filter=_filter,
                recursive=False, _vars=_vars)

    if copy_qt_conf:
        # Copy the qt.conf file to prefix dir.
        copyfile(f"{{build_dir}}/{PYSIDE}/{{st_package_name}}/qt.conf",
                 destination_qt_dir,
                 _vars=_vars)

    if copy_clang or platform.machine() == "ARM64":
        # Qt CI is using dynamic libclang with arm config.
        pyside_build.prepare_standalone_clang(is_win=True)