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from conans import ConanFile
import os
import re
from functools import lru_cache
from pathlib import Path


@lru_cache(maxsize=8)
def _parse_qt_version_by_key(key: str) -> str:
    with open(Path(Path(__file__).parent.resolve() / ".cmake.conf")) as f:
        ret = [m.group(1) for m in [re.search(r"{0} .*\"(.*)\"".format(key), f.read())] if m]
    return ret.pop() if ret else ""


def _get_qt_minor_version() -> str:
    return _parse_qt_version_by_key('QT_REPO_MODULE_VERSION')[0:3]


class QtSvg(ConanFile):
    name = "qtsvg"
    license = "LGPL-3.0-only, Commercial Qt License Agreement"
    author = "The Qt Company <https://www.qt.io/contact-us>"
    url = "https://code.qt.io/cgit/qt/qtsvg.git/"
    description = (
        "Scalable Vector Graphics (SVG) is an XML-based language for describing "
        "two-dimensional vector graphics. Qt provides classes for rendering and "
        "displaying SVG drawings in widgets and on other paint devices."
    )
    topics = ("qt", "qt6", "qtsvg", "svg")
    settings = "os", "compiler", "arch", "build_type"
    exports = ".cmake.conf"  # for referencing the version number and prerelease tag
    exports_sources = "*", "!conan*.*"
    # use commit ID as the RREV (recipe revision) if this is exported from .git repository
    revision_mode = "scm" if Path(Path(__file__).parent.resolve() / ".git").exists() else "hash"
    python_requires = f"qt-conan-common/{_get_qt_minor_version()}@qt/everywhere"

    def set_version(self):
        _ver = _parse_qt_version_by_key("QT_REPO_MODULE_VERSION")
        _prerelease = _parse_qt_version_by_key("QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT")
        self.version = _ver + "-" + _prerelease if _prerelease else _ver

    def requirements(self):
        _version = _parse_qt_version_by_key("QT_REPO_MODULE_VERSION")
        # will match latest prerelase of final major.minor.patch
        self.requires(f"qtbase/[<={_version}, include_prerelease=True]@{self.user}/{self.channel}")

    def build(self):
        self.python_requires["qt-conan-common"].module.build_leaf_qt_module(self)

    def package(self):
        cmd = ["cmake", "--install", "."]
        self.run(" ".join(cmd))

    def package_info(self):
        self.python_requires["qt-conan-common"].module.package_info(self)

    def package_id(self):
        self.info.requires.package_revision_mode()

    def deploy(self):
        self.copy("*")  # copy from current package
        if not os.environ.get("QT_CONAN_INSTALL_SKIP_DEPS"):
            self.copy_deps("*")  # copy from dependencies