# <one line to give the program's name and a brief idea of what it does.>
# Copyright (C) 2019  Juraj Oravec <jurajoravec@netc.it>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from PySide2.QtCore import QObject, Signal, QSettings


class Config(QObject):
    lineHeightChanged = Signal(int)
    marginChanged = Signal(int)
    fontSizeChanged = Signal(int)
    fontChanged = Signal(str)
    colorThemeChanged = Signal(str)
    contextMenuChanged = Signal(_bool)
    iconChanged = Signal(str)
    settingsFileChanged = Signal(str)

    configLoaded = Signal()
    configSaved = Signal()

    def __init__(self, lineHeight=None, margin=None, fontSize=None, font=None, colorTheme=None, contextMenu=None, icon=None, settingsFile=None):
        QObject.__init__()

        self._lineHeight = lineHeight
        self._margin = margin
        self._fontSize = fontSize
        self._font = font
        self._colorTheme = colorTheme
        self._contextMenu = contextMenu
        self._icon = icon
        self._settingsFile = settingsFile

    def load(self):
        if not self.settingsFile:
            return
        if os.path.exists(self.settingsFile):
            pass

        settings = QSettings(self.settingsFile, QSettings.IniFormat)

        settings.beginGroup("Readability")
        self.lineHeight = int(settings.value("lineHeight", self.lineHeight))
        self.margin = int(settings.value("margin", self.margin))
        self.fontSize = int(settings.value("fontSize", self.fontSize))
        self.font = str(settings.value("font", self.font))
        self.colorTheme = str(settings.value("colorTheme", self.colorTheme))
        self.contextMenu = _bool(settings.value("contextMenu", self.contextMenu))
        self.icon = str(settings.value("icon", self.icon))
        self.settingsFile = str(settings.value("settingsFile", self.settingsFile))
        settings.endGroup()

        self.configLoaded.emit()

    def save(self):
        if not self.settingsFile:
            return
        if os.path.exists(self.settingsFile):
            pass

        settings=QSettings(self.settingsFile, QSettings.IniFormat)

        settings.beginGroup("Readability")
        settings.setValue("lineHeight", self.lineHeight)
        settings.setValue("margin", self.margin)
        settings.setValue("fontSize", self.fontSize)
        settings.setValue("font", self.font)
        settings.setValue("colorTheme", self.colorTheme)
        settings.setValue("contextMenu", self.contextMenu)
        settings.setValue("icon", self.icon)
        settings.setValue("settingsFile", self.settingsFile)
        settings.endGroup()

        settings.sync()

        self.configSaved.emit()

    @property
    def lineHeight(self):
        return self._lineHeight

    @lineHeight.setter
    def lineHeight(self, lineHeight):
        if not lineHeight:
            return
        if self._lineHeight == lineHeight:
            return

        self._lineHeight = lineHeight
        self.lineHeightChanged.emit(lineHeight)

    @property
    def margin(self):
        return self._margin

    @margin.setter
    def margin(self, margin):
        if not margin:
            return
        if self._margin == margin:
            return

        self._margin = margin
        self.marginChanged.emit(margin)

    @property
    def fontSize(self):
        return self._fontSize

    @fontSize.setter
    def fontSize(self, fontSize):
        if not fontSize:
            return
        if self._fontSize == fontSize:
            return

        self._fontSize = fontSize
        self.fontSizeChanged.emit(fontSize)

    @property
    def font(self):
        return self._font

    @font.setter
    def font(self, font):
        if not font:
            return
        if self._font == font:
            return

        self._font = font
        self.fontChanged.emit(font)

    @property
    def colorTheme(self):
        return self._colorTheme

    @colorTheme.setter
    def colorTheme(self, colorTheme):
        if not colorTheme:
            return
        if self._colorTheme == colorTheme:
            return

        self._colorTheme = colorTheme
        self.colorThemeChanged.emit(colorTheme)

    @property
    def contextMenu(self):
        return self._contextMenu

    @contextMenu.setter
    def contextMenu(self, contextMenu):
        if not contextMenu:
            return
        if self._contextMenu == contextMenu:
            return

        self._contextMenu = contextMenu
        self.contextMenuChanged.emit(contextMenu)

    @property
    def icon(self):
        return self._icon

    @icon.setter
    def icon(self, icon):
        if not icon:
            return
        if self._icon == icon:
            return

        self._icon = icon
        self.iconChanged.emit(icon)

    @property
    def settingsFile(self):
        return self._settingsFile

    @settingsFile.setter
    def settingsFile(self, settingsFile):
        if not settingsFile:
            return
        if self._settingsFile == settingsFile:
            return

        self._settingsFile = settingsFile
        self.settingsFileChanged.emit(settingsFile)