#!/usr/bin/python
# coding=utf-8
#
# Copyright (C) 2018-2025 by dream-alpha
#:
# In case of reuse of this source code please do not remove this copyright.
#
# 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.
#
# For more information on the GNU General Public License see:
# <http://www.gnu.org/licenses/>.


from Components.ActionMap import ActionMap
from Components.Label import Label
from Components.Button import Button
from Components.Slider import Slider
from Screens.Screen import Screen
from .__init__ import _
from .Debug import logger
from .BoxUtils import dimmOSD


class FileProgress(Screen):

	def __init__(self, session):
		logger.debug("...")
		Screen.__init__(self, session)

		self["slider1"] = Slider(0, 100)

		self["status"] = Label("")
		self["name"] = Label("")
		self["operation"] = Label("")

		self["key_red"] = Button(_("Cancel"))
		self["key_green"] = Button(_("Close"))
		self["key_green"].hide()
		self["key_yellow"] = Button("")
		self["key_blue"] = Button(_("Hide"))

		self["actions"] = ActionMap(
			["OkCancelActions", "ColorActions"],
			{"ok": self.exit, "cancel": self.exit, "red": self.cancel, "green": self.exit, "yellow": self.noop, "blue": self.toggleHide}
		)

		self.execution_list = []
		self.total_files = 0
		self.current_files = 0
		self.file_progress = 0
		self.file_name = ""
		self.status = ""
		self.request_cancel = False
		self.cancelled = False
		self.hidden = False

	def noop(self):
		return

	def cancel(self):
		if self.hidden:
			logger.debug("unhide")
			self.toggleHide()
		else:
			if self.cancelled or (self.current_files > self.total_files):
				self.exit()
			else:
				logger.debug("trigger")
				self.request_cancel = True
				self["key_red"].hide()
				self["key_blue"].hide()
				self["key_green"].hide()
				self.status = _("Cancelling, please wait") + " ..."

	def exit(self):
		logger.info("...")
		if self.hidden:
			logger.debug("unhide")
			self.toggleHide()
		else:
			if self.cancelled or (self.current_files > self.total_files):
				logger.debug("close")
				self.close()

	def toggleHide(self):
		if self.hidden:
			self.hidden = False
			dimmOSD(True)
		else:
			self.hidden = True
			dimmOSD(False)

	def updateProgress(self):
		logger.debug("file_name: %s, current_files: %s, total_files: %s, status: %s", self.file_name, self.current_files, self.total_files, self.status)
		current_files = self.current_files if self.current_files <= self.total_files else self.total_files
		msg = _("Processing") + ": " + str(current_files) + " " + _("of") + " " + str(self.total_files) + " ..."
		self["operation"].setText(msg)
		self["name"].setText(self.file_name)
		percent_complete = int(round(float(self.current_files - 1) / float(self.total_files) * 100)) if self.total_files > 0 else 0
		self["slider1"].setValue(percent_complete)
		self["status"].setText(self.status)

	def completionStatus(self):
		return _("Done") + "."

	def doFileOp(self, _afile):
		logger.error("should not be called at all, as overridden by child")

	def nextFileOp(self):
		logger.debug("...")

		self.current_files += 1
		if self.request_cancel and (self.current_files <= self.total_files):
			self.current_files -= 1
			if self.hidden:
				self.toggleHide()
			self["key_red"].hide()
			self["key_blue"].hide()
			self["key_green"].show()
			self.status = _("Cancelled") + "."
			self.cancelled = True
			self.updateProgress()
		else:
			if self.execution_list:
				afile = self.execution_list.pop(0)
				self.status = _("Please wait") + " ..."
				self.doFileOp(afile)
			else:
				logger.debug("done.")
				if self.hidden:
					self.toggleHide()
				self["key_red"].hide()
				self["key_blue"].hide()
				self["key_green"].show()
				if self.cancelled:
					self.status = _("Cancelled") + "."
				else:
					self.status = self.completionStatus()
				self.updateProgress()