# main.py
#
# Copyright 2023 Heliguy
#
# 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/>.
#
# SPDX-License-Identifier: GPL-3.0-only

import sys
import gi

gi.require_version("Gtk", "4.0")
gi.require_version("Adw", "1")

from gi.repository import Gtk, Gio, Adw, GLib
from src.main_window.window import WarehouseWindow
from src.const import Config
from src.gtk.error_toast import ErrorToast
import gettext

_ = gettext.gettext


class WarehouseApplication(Adw.Application):
	"""The main application singleton class."""

	troubleshooting = "OS: {os}\nWarehouse version: {wv}\nGTK: {gtk}\nlibadwaita: {adw}\nApp ID: {app_id}\nProfile: {profile}\nLanguage: {lang}"
	version = Config.VERSION

	def __init__(self):
		super().__init__(
			application_id="io.github.flattool.Warehouse",
			flags=Gio.ApplicationFlags.HANDLES_COMMAND_LINE | Gio.ApplicationFlags.HANDLES_OPEN,
		)
		self.create_action("about", self.on_about_action)
		self.create_action("preferences", self.on_preferences_action)
		self.create_action("quit", lambda *_: self.quit(), ["<primary>q"])
		self.create_action("open-menu", lambda *_: self.props.active_window.main_menu.popup(), ["F10"])
		self.create_action("refresh", lambda *_: self.props.active_window.refresh_handler(), ["<primary>r", "F5"])
		self.create_action("open-files", self.on_open_files_shortcut, ["<primary>o"])

		self.create_action("show-packages-page", lambda *_: self.props.active_window.switch_page_shortcut_handler("p"), ["<primary>p"])
		self.create_action("show-remotes-page", lambda *_: self.props.active_window.switch_page_shortcut_handler("m"), ["<primary>m"])
		self.create_action("show-user-data-page", lambda *_: self.props.active_window.switch_page_shortcut_handler("d"), ["<primary>d"])
		self.create_action("show-snapshots-page", lambda *_: self.props.active_window.switch_page_shortcut_handler("s"), ["<primary>s"])
		self.create_action("show-install-page", lambda *_: self.props.active_window.switch_page_shortcut_handler("i"), ["<primary>i"])

		self.create_action("toggle-select-mode", self.on_toggle_select_mode_shortcut, ["<primary>b", "<primary>Return"])
		self.create_action("toggle-selection-kp-enter", self.on_toggle_select_mode_shortcut, ["<primary>KP_Enter"])  # Doesn't show in the shortcuts window
		self.create_action("search-mode", self.on_search_mode_shortcut, ["<primary>f"])
		self.create_action("filter", self.on_filter_shortcut, ["<primary>t"])
		self.create_action("new", self.on_new_shortcut, ["<primary>n"])
		self.create_action("active-data-view", lambda *_: self.on_data_view_shortcut(True), ["<Alt>1"])
		self.create_action("leftover-data-view", lambda *_: self.on_data_view_shortcut(False), ["<Alt>2"])

		self.is_dialog_open = False

		gtk_version = str(Gtk.MAJOR_VERSION) + "." + str(Gtk.MINOR_VERSION) + "." + str(Gtk.MICRO_VERSION)
		adw_version = str(Adw.MAJOR_VERSION) + "." + str(Adw.MINOR_VERSION) + "." + str(Adw.MICRO_VERSION)
		os_string = GLib.get_os_info("NAME") + " " + GLib.get_os_info("VERSION")
		lang = GLib.environ_getenv(GLib.get_environ(), "LANG")

		self.troubleshooting = self.troubleshooting.format(
			os=os_string,
			wv=self.version,
			gtk=gtk_version,
			adw=adw_version,
			profile=Config.PROFILE,
			app_id=self.get_application_id(),
			lang=lang,
		)

	def on_open_files_shortcut(self, *args):
		window = self.props.active_window

		def file_choose_callback(object, result):
			try:
				files = object.open_multiple_finish(result)
				if not files:
					window.toast_overlay.add_toast(ErrorToast(_("Could not add files"), _("No files were found")).toast)
					return

				window.on_file_drop(None, files, None, None)
			except GLib.GError as gle:
				if not (gle.domain == "gtk-dialog-error-quark" and gle.code == 2):
					window.toast_overlay.add_toast(ErrorToast(_("Could not add files"), str(gle)).toast)

		file_filter = Gtk.FileFilter(name=_("Flatpaks & Remotes"))
		file_filter.add_suffix("flatpak")
		file_filter.add_suffix("flatpakref")
		file_filter.add_suffix("flatpakrepo")
		filters = Gio.ListStore.new(Gtk.FileFilter)
		filters.append(file_filter)
		file_chooser = Gtk.FileDialog()
		file_chooser.set_filters(filters)
		file_chooser.set_default_filter(file_filter)
		file_chooser.open_multiple(window, None, file_choose_callback)

	def on_toggle_select_mode_shortcut(self, *args):
		try:
			button = self.props.active_window.stack.get_visible_child().select_button
			button.set_active(not button.get_active())
		except AttributeError:
			pass

	def on_search_mode_shortcut(self, *args):
		try:
			button = self.props.active_window.stack.get_visible_child().search_button
			button.set_active(True)
			entry = self.props.active_window.stack.get_visible_child().search_entry
			entry.grab_focus()
		except AttributeError:
			pass

	def on_filter_shortcut(self, *args):
		try:
			button = self.props.active_window.stack.get_visible_child().filter_button
			button.set_active(not button.get_active())
		except AttributeError:
			pass

		try:
			button = self.props.active_window.stack.get_visible_child().sort_button
			button.set_active(True)
		except AttributeError:
			pass

		try:
			button = self.props.active_window.stack.get_visible_child().show_disabled_button
			if button.get_visible():
				button.set_active(not button.get_active())
		except AttributeError:
			pass

	def on_new_shortcut(self, *args):
		page = self.props.active_window.stack.get_visible_child()
		try:
			page.new_custom_handler()
		except AttributeError:
			pass

		try:
			page.on_new()
		except AttributeError:
			pass

	def on_delete_shortcut(self, *args):
		page = self.props.active_window.stack.get_visible_child()
		try:
			if not page.select_button.get_active():
				return

			page.select_trash_handler()
		except AttributeError:
			pass

	def on_data_view_shortcut(self, is_active):
		page = self.props.active_window.stack.get_visible_child()
		try:
			adp = page.adp
			ldp = page.ldp
			page.stack.set_visible_child(adp if is_active else ldp)
		except AttributeError:
			pass

	def do_activate(self):
		"""Called when the application is activated.

		We raise the application's main window, creating it if
		necessary.
		"""
		win = self.props.active_window
		if not win:
			win = WarehouseWindow(application=self)
		win.present()

	def do_open(self, files, _n_files, _hint):
		"""Handle files opened from file manager or command line"""
		win = self.props.active_window
		if not win:
			win = WarehouseWindow(application=self)
		win.present()

		# Convert GFiles to file paths
		file_list = []
		for gfile in files:
			file_list.append(gfile)

		# Use existing file drop handler
		win.on_file_drop(None, file_list, None, None)

	def do_command_line(self, command_line):
		"""Handle command line arguments"""
		args = command_line.get_arguments()

		if len(args) > 1:  # First arg is program name
			files = []
			for path in args[1:]:
				gfile = Gio.File.new_for_path(path)
				if gfile.query_exists():
					files.append(gfile)

			if files:
				self.open(files, "")
				return 0

		# No valid files, just activate normally
		self.activate()
		return 0

	def on_about_action(self, widget, _a):
		"""Callback for the app.about action."""
		about = Adw.AboutDialog(
			application_name="Warehouse",
			application_icon="io.github.flattool.Warehouse",
			developer_name="Heliguy",
			version=self.version,
			developers=[
				"Heliguy https://github.com/heliguy4599",
				"kramo https://kramo.page",
			],
			artists=[
				"Heliguy https://github.com/heliguy4599",
				"kramo https://kramo.page",
				"Amy https://github.com/AtiusAmy",
				"eryn https://github.com/hericiumvevo",
			],
			copyright="© 2023 - 2025 Mitchell Winkelman",
			license_type=Gtk.License.GPL_3_0_ONLY,
			debug_info=self.troubleshooting,
			# Translators: do one of the following, one per line: Your Name, Your Name <email@email.org>, Your Name https://your.website
			translator_credits=_("translator-credits"),
			debug_info_filename="{}.txt".format(self.get_application_id()),
			website="https://github.com/flattool/warehouse",
			support_url="https://matrix.to/#/#warehouse-development:matrix.org",
			issue_url="https://github.com/flattool/warehouse/issues",
		)
		about.add_link(_("Donate"), "https://ko-fi.com/heliguy")
		about.add_credit_section(
			_("Contributors"),
			[
				# Contributors: do one of the following, one per line: Your Name, Your Name <email@email.org>, Your Name https://your.website
				"Win <winsdominoes2018@gmail.com>",
				"Óscar Fernández Díaz",
				"Runar https://github.com/runarcn",
				"Sunniva Løvstad <warehouse@turtle.garden>",
				"Maxim Therrien <maxim@mtsd.ca>",
			],
		)
		about.present(self.props.active_window)

	def on_preferences_action(self, widget, _):
		"""Callback for the app.preferences action."""
		print("app.preferences action activated")

	def create_action(self, name, callback, shortcuts=None):
		"""Add an application action.

		Args:
			name: the name of the action
			callback: the function to be called when the action is activated
			shortcuts: an optional list of accelerators
		"""
		action = Gio.SimpleAction.new(name, None)
		action.connect("activate", callback)
		self.add_action(action)
		if shortcuts:
			self.set_accels_for_action(f"app.{name}", shortcuts)


def main(version):
	"""The application's entry point."""
	app = WarehouseApplication()
	return app.run(sys.argv)