"""A PyQT4 dialog to confirm rename"""

# 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

from PyQt5 import QtCore, QtGui, QtWidgets, uic

from comictaggerlib.ui.qtutils import centerWindowOnParent

from . import utils
from .comicarchive import MetaDataStyle
from .filerenamer import FileRenamer
from .settings import ComicTaggerSettings
from .settingswindow import SettingsWindow


class RenameWindow(QtWidgets.QDialog):
    def __init__(self, parent, comic_archive_list, data_style, settings):
        super(RenameWindow, self).__init__(parent)

        uic.loadUi(ComicTaggerSettings.getUIFile("renamewindow.ui"), self)
        self.label.setText("Preview (based on {0} tags):".format(MetaDataStyle.name[data_style]))

        self.setWindowFlags(self.windowFlags() | QtCore.Qt.WindowSystemMenuHint | QtCore.Qt.WindowMaximizeButtonHint)

        self.settings = settings
        self.comic_archive_list = comic_archive_list
        self.data_style = data_style

        self.btnSettings.clicked.connect(self.modifySettings)
        self.configRenamer()
        self.doPreview()

    def configRenamer(self):
        self.renamer = FileRenamer(None)
        self.renamer.setTemplate(self.settings.rename_template)
        self.renamer.setIssueZeroPadding(self.settings.rename_issue_number_padding)
        self.renamer.setSmartCleanup(self.settings.rename_use_smart_string_cleanup)

    def doPreview(self):
        self.rename_list = []
        while self.twList.rowCount() > 0:
            self.twList.removeRow(0)

        self.twList.setSortingEnabled(False)

        for ca in self.comic_archive_list:

            new_ext = None  # default
            if self.settings.rename_extension_based_on_archive:
                if ca.isZip():
                    new_ext = ".cbz"
                elif ca.isRar():
                    new_ext = ".cbr"

            md = ca.readMetadata(self.data_style)
            if md.isEmpty:
                md = ca.metadataFromFilename(self.settings.parse_scan_info)
            self.renamer.setMetadata(md)
            self.renamer.move = self.settings.rename_move_dir

            try:
                new_name = self.renamer.determineName(ca.path, ext=new_ext)
            except Exception as e:
                QtWidgets.QMessageBox.critical(
                    self,
                    "Invalid format string!",
                    "Your rename template is invalid!"
                    "<br/><br/>{}<br/><br/>"
                    "Please consult the template help in the "
                    "settings and the documentation on the format at "
                    "<a href='https://docs.python.org/3/library/string.html#format-string-syntax'>"
                    "https://docs.python.org/3/library/string.html#format-string-syntax</a>".format(e),
                )
                return

            row = self.twList.rowCount()
            self.twList.insertRow(row)
            folder_item = QtWidgets.QTableWidgetItem()
            old_name_item = QtWidgets.QTableWidgetItem()
            new_name_item = QtWidgets.QTableWidgetItem()

            item_text = os.path.split(ca.path)[0]
            folder_item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
            self.twList.setItem(row, 0, folder_item)
            folder_item.setText(item_text)
            folder_item.setData(QtCore.Qt.ToolTipRole, item_text)

            item_text = os.path.split(ca.path)[1]
            old_name_item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
            self.twList.setItem(row, 1, old_name_item)
            old_name_item.setText(item_text)
            old_name_item.setData(QtCore.Qt.ToolTipRole, item_text)

            new_name_item.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
            self.twList.setItem(row, 2, new_name_item)
            new_name_item.setText(new_name)
            new_name_item.setData(QtCore.Qt.ToolTipRole, new_name)

            dict_item = dict()
            dict_item["archive"] = ca
            dict_item["new_name"] = new_name
            self.rename_list.append(dict_item)

        # Adjust column sizes
        self.twList.setVisible(False)
        self.twList.resizeColumnsToContents()
        self.twList.setVisible(True)
        if self.twList.columnWidth(0) > 200:
            self.twList.setColumnWidth(0, 200)

        self.twList.setSortingEnabled(True)

    def modifySettings(self):
        settingswin = SettingsWindow(self, self.settings)
        settingswin.setModal(True)
        settingswin.showRenameTab()
        settingswin.exec_()
        if settingswin.result():
            self.configRenamer()
            self.doPreview()

    def accept(self):

        progdialog = QtWidgets.QProgressDialog("", "Cancel", 0, len(self.rename_list), self)
        progdialog.setWindowTitle("Renaming Archives")
        progdialog.setWindowModality(QtCore.Qt.WindowModal)
        progdialog.setMinimumDuration(100)
        centerWindowOnParent(progdialog)
        # progdialog.show()
        QtCore.QCoreApplication.processEvents()

        for idx, item in enumerate(self.rename_list):

            QtCore.QCoreApplication.processEvents()
            if progdialog.wasCanceled():
                break
            idx += 1
            progdialog.setValue(idx)
            progdialog.setLabelText(item["new_name"])
            centerWindowOnParent(progdialog)
            QtCore.QCoreApplication.processEvents()

            folder = os.path.dirname(os.path.abspath(item["archive"].path))
            if self.settings.rename_move_dir and len(self.settings.rename_dir.strip()) > 3:
                folder = self.settings.rename_dir.strip()

            new_abs_path = utils.unique_file(os.path.join(folder, item["new_name"]))

            if os.path.join(folder, item["new_name"]) == item["archive"].path:
                print(item["new_name"], "Filename is already good!")
                continue

            if not item["archive"].isWritable(check_rar_status=False):
                continue

            os.makedirs(os.path.dirname(new_abs_path), 0o777, True)
            os.rename(item["archive"].path, new_abs_path)

            item["archive"].rename(new_abs_path)

        progdialog.hide()
        QtCore.QCoreApplication.processEvents()

        QtWidgets.QDialog.accept(self)