#	Friendly Telegram (telegram userbot)
#	Copyright (C) 2018-2019 The Authors

#	This program is free software: you can redistribute it and/or modify
#	it under the terms of the GNU Affero 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 Affero General Public License for more details.

#	You should have received a copy of the GNU Affero General Public License
#	along with this program.  If not, see <https://www.gnu.org/licenses/>.

import logging

from .. import loader, utils

logger = logging.getLogger("friendly-telegram.modules.notes")


@loader.tds
class NotesMod(loader.Module):
	"""Stores global notes (aka snips)"""
	strings = {"name": "Notes",
			   "what_note": "<b>Какую заметку нужно показать?</b>",
			   "no_note": "<b>Заметка не найдена</b>",
			   "save_what": "<b>А что сохранить?</b>",
			   "what_name": "<b>А как будет называться заметка?</b>",
			   "saved": "<b>Заметка сохранена как:</b> <code>{}</code>",
			   "notes_header": "<b>Сохранённые заметки:</b>\n\n",
			   "notes_item": "<b>▷</b> <code>{}</code>",
			   "delnote_args": "<b>А какую заметку нужно удалить?</b>",
			   "delnote_done": "<b>Заметка удалена!</b>",
			   "delnotes_none": "<b>А заметок-то нету...</b>",
			   "delnotes_done": "<b>ВСЕ ЗАМЕТКИ УДАЛЕНЫ</b>",
			   "notes_none": "<b>А заметок-то нету...</b>"}
	
	
	async def findnotecmd(self, message):
		"""Gets the note specified"""
		args = utils.get_args(message)
		if not args:
			await utils.answer(message, self.strings("what_note", message))
			return
		asset_id = self._db.get("friendly-telegram.modules.notes", "notes", {}).get(args[0], None)
		logger.debug(asset_id)
		if asset_id is not None:
			asset = await self._db.fetch_asset(asset_id)
		else:
			asset = None
		if asset is None:
			self.del_note(args[0])
			await utils.answer(message, self.strings("no_note", message))
			return
		link = "https://t.me/c/{}/{}".format(asset.chat.id, asset.id)
		await message.edit(f'<b>Заметка</b> "<code>{args[0]}</code>" <a href="{link}">находится здесь.</a>')
		


	async def notecmd(self, message):
		"""Gets the note specified"""
		args = utils.get_args(message)
		if not args:
			await utils.answer(message, self.strings("what_note", message))
			return
		asset_id = self._db.get("friendly-telegram.modules.notes", "notes", {}).get(args[0], None)
		logger.debug(asset_id)
		if asset_id is not None:
			asset = await self._db.fetch_asset(asset_id)
		else:
			asset = None
		if asset is None:
			self.del_note(args[0])
			await utils.answer(message, self.strings("no_note", message))
			return
		await message.delete()
		await message.client.send_message(message.to_id, await self._db.fetch_asset(asset_id), reply_to=await message.get_reply_message())

	async def delallnotescmd(self, message):
		"""Deletes all the saved notes"""
		if not self._db.get("friendly-telegram.modules.notes", "notes", {}):
			await utils.answer(message, self.strings("delnotes_none", message))
			return
		self._db.get("friendly-telegram.modules.notes", "notes", {}).clear()
		await utils.answer(message, self.strings("delnotes_done", message))

	async def savecmd(self, message):
		"""Save a new note. Must be used in reply with one parameter (note name)"""
		args = utils.get_args(message)
		if not args:
			await utils.answer(message, self.strings("what_name", message))
			return
		if not message.is_reply:
			if len(args) < 2:
				await utils.answer(message, self.strings("save_what", message))
				return
			else:
				message.entities = None
				message.message = args[1]
				target = message
				logger.debug(target.message)
		else:
			target = await message.get_reply_message()
		asset_id = await self._db.store_asset(target)
		self._db.set("friendly-telegram.modules.notes", "notes", {**self._db.get("friendly-telegram.modules.notes", "notes", {}), args[0]: asset_id})
		await utils.answer(message, str(self.strings("saved", message)).format(args[0]))

	async def delnotecmd(self, message):
		"""Deletes a note, specified by note name"""
		args = utils.get_args(message)
		if not args:
			await utils.answer(message, self.strings("delnote_args", message))
		self.del_note(args[0])
		await utils.answer(message, self.strings("delnote_done", message))

	def del_note(self, note):
		old = self._db.get("friendly-telegram.modules.notes", "notes", {})
		try:
			del old[note]
		except KeyError:
			pass
		else:
			self._db.set("friendly-telegram.modules.notes", "notes", old)

	async def notescmd(self, message):
		"""List the saved notes"""
		if not self._db.get("friendly-telegram.modules.notes", "notes", {}):
			await utils.answer(message, self.strings("notes_none", message))
			return
		await utils.answer(message, self.strings("notes_header", message)
						   + "\n".join(self.strings("notes_item", message).format(key)
						   for key in self._db.get("friendly-telegram.modules.notes", "notes", {})))

	async def client_ready(self, client, db):
		self._db = db