# main.py
#
# Copyright 2020 Morgan McMillian
#
# 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 <http://www.gnu.org/licenses/>.

import sys
import gi

gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk, Gio

gi.require_version('Handy', '1')
from gi.repository import Handy
Handy.init()

class Application(Gtk.Application):
    def __init__(self):
        super().__init__(application_id='dev.thrrgilag.clipbox',
                         flags=Gio.ApplicationFlags.FLAGS_NONE)

    def do_activate(self):
        self.clipboard = Gtk.Clipboard.get(Gdk.SELECTION_CLIPBOARD)

        win = self.props.active_window
        if not win:
            win = Gtk.ApplicationWindow(application=self)
        win.set_default_size(320, 480)

        title_bar = Handy.TitleBar()
        win.set_titlebar(title_bar)

        header = Handy.HeaderBar(title='Clipboard', show_close_button=True)
        title_bar.add(header)

        vbox = Gtk.Box(orientation='vertical')

        scroller = Gtk.ScrolledWindow(halign='fill')
        textarea = Gtk.TextView(
            left_margin=8,
            right_margin=8,
            top_margin=8,
            bottom_margin=8
        )
        textarea.set_wrap_mode(Gtk.WrapMode.WORD)
        scroller.add(textarea)
        self.buffer = textarea.get_buffer()

        actionbar = Gtk.ActionBar()
        paste_button = Gtk.Button.new_with_label("Paste Text")
        copy_button = Gtk.Button.new_with_label("Copy Text")
        clear_button = Gtk.Button.new_with_label("Clear")
        actionbar.pack_end(copy_button)
        actionbar.pack_end(paste_button)
        actionbar.pack_end(clear_button)

        paste_button.connect('clicked', self.paste_text)
        copy_button.connect('clicked', self.copy_text)
        clear_button.connect('clicked', self.clear_text)

        vbox.pack_start(scroller, True, True, 0)
        vbox.pack_end(actionbar, False, False, 0)

        win.add(vbox)
        win.show_all()
        win.present()

    def copy_text(self, widget):
        start = self.buffer.get_start_iter()
        end = self.buffer.get_end_iter()
        text = self.buffer.get_text(start, end, False)
        self.clipboard.set_text(text, -1)

    def paste_text(self, widget):
        text = self.clipboard.wait_for_text()
        if text is not None:
            self.buffer.set_text(text, -1)

    def clear_text(self, widget):
        start = self.buffer.get_start_iter()
        end = self.buffer.get_end_iter()
        self.buffer.delete(start, end)

def main(version):
    app = Application()
    return app.run(sys.argv)