# UndoCommand.py -- Pamhyr
# Copyright (C) 2023-2026  INRAE
#
# 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 <https://www.gnu.org/licenses/>.

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

from copy import deepcopy
from tools import trace, timer

from PyQt5.QtWidgets import (
    QMessageBox, QUndoCommand, QUndoStack,
)

from Model.Friction.Friction import Friction
from Model.Friction.FrictionList import FrictionList


class SetNameCommand(QUndoCommand):
    def __init__(self, ensembles, index, new_value):
        QUndoCommand.__init__(self)

        self._ensembles = ensembles
        self._index = index
        self._old = self._ensembles.get(self._index).name
        self._new = str(new_value)

    def undo(self):
        self._ensembles.get(self._index).name = self._old

    def redo(self):
        self._ensembles.get(self._index).name = self._new


class SetTypeCommand(QUndoCommand):
    def __init__(self, ensembles, index, new_value):
        QUndoCommand.__init__(self)

        self._ensembles = ensembles
        self._index = index
        self._old = self._ensembles.get(self._index).type
        self._new = new_value

    def undo(self):
        self._ensembles.get(self._index).type = self._old

    def redo(self):
        self._ensembles.get(self._index).type = self._new


class SetDataCommand(QUndoCommand):
    def __init__(self, ensembles, index, edge):
        QUndoCommand.__init__(self)

        self._ensembles = ensembles
        self._index = index
        self._old = self._ensembles.get(self._index).edge
        self._new = edge

    def undo(self):
        self._ensembles.get(self._index).target_data = self._old

    def redo(self):
        self._ensembles.get(self._index).target_data = self._new


class SetFunctionCommand(QUndoCommand):
    def __init__(self, ensembles, index, edge):
        QUndoCommand.__init__(self)

        self._ensembles = ensembles
        self._index = index
        self._old = self._ensembles.get(self._index).edge
        self._new = edge

    def undo(self):
        self._ensembles.get(self._index).function = self._old

    def redo(self):
        self._ensembles.get(self._index).function = self._new


class AddCommand(QUndoCommand):
    def __init__(self, ensembles, index, reach):
        QUndoCommand.__init__(self)

        self._ensembles = ensembles
        self._index = index
        self._reach = reach
        self._new = None

    def undo(self):
        self._ensembles.delete_i([self._index])

    def redo(self):
        if self._new is None:
            self._new = self._ensembles.new(
                self._reach, self._index
            )
            self._new.edge = self._reach
        else:
            self._ensembles.insert(self._index, self._new)


class DelCommand(QUndoCommand):
    def __init__(self, ensembles, rows):
        QUndoCommand.__init__(self)

        self._ensembles = ensembles
        self._rows = rows

        self._friction = []
        for row in rows:
            self._friction.append((row, self._ensembles.get(row)))
        self._friction.sort()

    def undo(self):
        for row, el in self._friction:
            self._ensembles.insert(row, el)

    def redo(self):
        self._ensembles.delete_i(self._rows)