"""A python app to (automatically) tag comic archives"""

# Copyright 2012-2014 Anthony Beville

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import platform
import signal
import sys
import traceback

from . import cli, utils
from .comicvinetalker import ComicVineTalker
from .options import Options
from .settings import ComicTaggerSettings

# Need to load setting before anything else
SETTINGS = ComicTaggerSettings()

try:
    qt_available = True
    from PyQt5 import QtCore, QtGui, QtWidgets
    from .taggerwindow import TaggerWindow
except ImportError as e:
    qt_available = False


def ctmain():
    opts = Options()
    opts.parseCmdLineArgs()

    # manage the CV API key
    if opts.cv_api_key:
        if opts.cv_api_key != SETTINGS.cv_api_key:
            SETTINGS.cv_api_key = opts.cv_api_key
            SETTINGS.save()
    if opts.only_set_key:
        print("Key set")
        return

    ComicVineTalker.api_key = SETTINGS.cv_api_key

    signal.signal(signal.SIGINT, signal.SIG_DFL)

    if not qt_available and not opts.no_gui:
        opts.no_gui = True
        print("PyQt5 is not available.  ComicTagger is limited to command-line mode.", file=sys.stderr)

    if opts.no_gui:
        cli.cli_mode(opts, SETTINGS)
    else:

        os.environ["QT_AUTO_SCREEN_SCALE_FACTOR"] = "1"

        # if platform.system() == "Darwin":
        #    QtWidgets.QApplication.setStyle("macintosh")
        # else:
        #    QtWidgets.QApplication.setStyle("Fusion")

        app = QtWidgets.QApplication(sys.argv)
        if platform.system() == "Darwin":
            # Set the MacOS dock icon
            app.setWindowIcon(QtGui.QIcon(ComicTaggerSettings.getGraphic("app.png")))

        if platform.system() == "Windows":
            # For pure python, tell windows that we're not python,
            # so we can have our own taskbar icon
            import ctypes

            myappid = u"comictagger"  # arbitrary string
            ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)

        if platform.system() != "Linux":
            img = QtGui.QPixmap(ComicTaggerSettings.getGraphic("tags.png"))

            splash = QtWidgets.QSplashScreen(img)
            splash.show()
            splash.raise_()
            app.processEvents()

        try:
            tagger_window = TaggerWindow(opts.file_list, SETTINGS, opts=opts)
            tagger_window.setWindowIcon(QtGui.QIcon(ComicTaggerSettings.getGraphic("app.png")))
            tagger_window.show()

            if platform.system() != "Linux":
                splash.finish(tagger_window)

            sys.exit(app.exec_())
        except Exception as e:
            QtWidgets.QMessageBox.critical(QtWidgets.QMainWindow(), "Error", "Unhandled exception in app:\n" + traceback.format_exc())