# Unloader - plugin for Falkon
# Copyright (C) 2019  Juraj Oravec <sgd.orava@gmail.com>
#
# 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/>.

import os
from PySide2.QtCore import QObject, Signal, QSettings


class Config(QObject):
    updateIntervalChanged = Signal(int)
    closeThresholdChanged = Signal(int)
    thresholdChanged = Signal(int)
    settingsFileChanged = Signal(str)

    configLoaded = Signal()
    configSaved = Signal()

    def __init__(self, updateInterval=None, closeThreshold=None, threshold=None, settingsFile=None):
        super().__init__()

        self._updateInterval = updateInterval
        self._closeThreshold = closeThreshold
        self._threshold = threshold
        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("Unloader")
        self.threshold = int(settings.value("threshold", self.threshold))
        self.closeThreshold = int(
            settings.value("closeThreshold", self.closeThreshold)
        )
        self.updateInterval = int(
            settings.value("defaultZoom", self.updateInterval)
        )
        settings.endGroup()

        self.configLoaded.emit()

    def save(self):
        settings = QSettings(self.settingsFile, QSettings.IniFormat)

        settings.beginGroup("Unloader")
        settings.setValue("threshold", self.threshold)
        settings.setValue("closeThreshold", self.closeThreshold)
        settings.setValue("updateInterval", self.updateInterval)
        settings.endGroup()

        settings.sync()

        self.configSaved.emit()

    @property
    def updateInterval(self):
        return self._updateInterval

    @updateInterval.setter
    def updateInterval(self, updateInterval):
        if updateInterval < 1:
            return
        if self._updateInterval == updateInterval:
            return

        self._updateInterval = updateInterval
        self.updateIntervalChanged.emit(updateInterval)

    @property
    def closeThreshold(self):
        return self._closeThreshold

    @closeThreshold.setter
    def closeThreshold(self, closeThreshold):
        if closeThreshold < 0:
            return
        if self._closeThreshold == closeThreshold:
            return

        self._closeThreshold = closeThreshold
        self.closeThresholdChanged.emit(closeThreshold)

    @property
    def threshold(self):
        return self._threshold

    @threshold.setter
    def threshold(self, threshold):
        if threshold < 1:
            return
        if self._threshold == threshold:
            return

        self._threshold = threshold
        self.thresholdChanged.emit(threshold)

    @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)