# -*- coding: utf-8 -*-

# Copyright (c) 2003 - 2024 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a dialog to enter the data for a merge operation.
"""

import re

from PyQt6.QtCore import pyqtSlot
from PyQt6.QtWidgets import QDialog, QDialogButtonBox

from .Ui_SvnMergeDialog import Ui_SvnMergeDialog


class SvnMergeDialog(QDialog, Ui_SvnMergeDialog):
    """
    Class implementing a dialog to enter the data for a merge operation.
    """

    def __init__(self, mergelist1, mergelist2, targetlist, force=False, parent=None):
        """
        Constructor

        @param mergelist1 list of previously entered URLs/revisions
        @type list of str
        @param mergelist2 list of previously entered URLs/revisions
        @type list of str
        @param targetlist list of previously entered targets
        @type list of str
        @param force flag indicating a forced merge
        @type bool
        @param parent parent widget
        @type QWidget
        """
        super().__init__(parent)
        self.setupUi(self)

        self.forceCheckBox.setChecked(force)

        self.okButton = self.buttonBox.button(QDialogButtonBox.StandardButton.Ok)
        self.okButton.setEnabled(False)

        self.rx_url = re.compile("(?:file:|svn:|svn+ssh:|http:|https:)//.+")
        self.rx_rev = re.compile("\\d+")

        self.tag1Combo.clear()
        self.tag1Combo.addItems(mergelist1)
        self.tag2Combo.clear()
        self.tag2Combo.addItems(mergelist2)
        self.targetCombo.clear()
        self.targetCombo.addItems(targetlist)

        msh = self.minimumSizeHint()
        self.resize(max(self.width(), msh.width()), msh.height())

    def __enableOkButton(self):
        """
        Private method used to enable/disable the OK-button.
        """
        self.okButton.setDisabled(
            self.tag1Combo.currentText() == ""
            or self.tag2Combo.currentText() == ""
            or not (
                (
                    bool(self.rx_url.fullmatch(self.tag1Combo.currentText()))
                    and bool(self.rx_url.fullmatch(self.tag2Combo.currentText()))
                )
                or (
                    bool(self.rx_rev.fullmatch(self.tag1Combo.currentText()))
                    and bool(self.rx_rev.fullmatch(self.tag2Combo.currentText()))
                )
            )
        )

    @pyqtSlot(str)
    def on_tag1Combo_editTextChanged(self, _text):
        """
        Private slot to handle the tag1Combo editTextChanged signal.

        @param _text text of the combo (unused)
        @type str
        """
        self.__enableOkButton()

    @pyqtSlot(str)
    def on_tag2Combo_editTextChanged(self, _text):
        """
        Private slot to handle the tag2Combo editTextChanged signal.

        @param _text text of the combo (unused)
        @type str
        """
        self.__enableOkButton()

    def getParameters(self):
        """
        Public method to retrieve the merge data.

        @return tuple naming two tag names or two revisions, a target and
            a flag indicating a forced merge
        @rtype tuple of (str, str, str, bool)
        """
        return (
            self.tag1Combo.currentText(),
            self.tag2Combo.currentText(),
            self.targetCombo.currentText(),
            self.forceCheckBox.isChecked(),
        )
