# environment_row.py
#
# Copyright 2025 Pavel Baksy
#
# 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/>.
#
# SPDX-License-Identifier: GPL-3.0-or-later

from gi.repository import Gtk, GObject


@Gtk.Template(resource_path='/cz/vesp/roster/widgets/environment-row.ui')
class EnvironmentRow(Gtk.Box):
    """Widget for displaying and editing an environment with its variables."""

    __gtype_name__ = 'EnvironmentRow'

    name_label = Gtk.Template.Child()
    values_box = Gtk.Template.Child()
    edit_button = Gtk.Template.Child()
    delete_button = Gtk.Template.Child()

    __gsignals__ = {
        'edit-requested': (GObject.SIGNAL_RUN_FIRST, None, ()),
        'delete-requested': (GObject.SIGNAL_RUN_FIRST, None, ()),
        'value-changed': (GObject.SIGNAL_RUN_FIRST, None, (str, str))  # variable_name, value
    }

    def __init__(self, environment, variable_names):
        super().__init__()
        self.environment = environment
        self.variable_names = variable_names
        self.value_entries = {}
        self._populate()

    def _populate(self):
        """Populate with environment data."""
        self.name_label.set_text(self.environment.name)

        # Clear values box
        while child := self.values_box.get_first_child():
            self.values_box.remove(child)

        # Create entry for each variable
        for var_name in self.variable_names:
            entry = Gtk.Entry()
            entry.set_placeholder_text(var_name)
            entry.set_text(self.environment.variables.get(var_name, ""))
            entry.set_hexpand(True)
            entry.connect('changed', self._on_value_changed, var_name)
            self.values_box.append(entry)
            self.value_entries[var_name] = entry

    def _on_value_changed(self, entry, var_name):
        """Handle value entry changes."""
        self.emit('value-changed', var_name, entry.get_text())

    @Gtk.Template.Callback()
    def on_edit_clicked(self, button):
        """Handle edit button click."""
        self.emit('edit-requested')

    @Gtk.Template.Callback()
    def on_delete_clicked(self, button):
        """Handle delete button click."""
        self.emit('delete-requested')

    def refresh(self, variable_names):
        """Refresh widget with updated variable names."""
        self.variable_names = variable_names
        self._populate()

    def get_values(self):
        """Get all variable values."""
        return {var_name: entry.get_text() for var_name, entry in self.value_entries.items()}