# Pyrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
#
# This file is part of Pyrogram.
#
# Pyrogram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pyrogram 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.

import binascii
import mimetypes
import os
import struct

from pyrogram.api import functions, types
from pyrogram.api.errors import FileIdInvalid, FilePartMissing
from pyrogram.client.ext import BaseClient, utils


class SendGIF(BaseClient):
    def send_gif(self,
                 chat_id: int or str,
                 gif: str,
                 caption: str = "",
                 parse_mode: str = "",
                 duration: int = 0,
                 width: int = 0,
                 height: int = 0,
                 thumb: str = None,
                 disable_notification: bool = None,
                 reply_to_message_id: int = None,
                 reply_markup=None,
                 progress: callable = None,
                 progress_args: tuple = ()):
        """Use this method to send GIF files.

        Args:
            chat_id (``int`` | ``str``):
                Unique identifier (int) or username (str) of the target chat.
                For your personal cloud (Saved Messages) you can simply use "me" or "self".
                For a contact that exists in your Telegram address book you can use his phone number (str).
                For a private channel/supergroup you can use its *t.me/joinchat/* link.

            gif (``str``):
                GIF to send.
                Pass a file_id as string to send a GIF that exists on the Telegram servers,
                pass an HTTP URL as a string for Telegram to get a GIF from the Internet, or
                pass a file path as string to upload a new GIF that exists on your local machine.

            caption (``str``, *optional*):
                GIF caption, 0-200 characters.

            parse_mode (``str``, *optional*):
                Use :obj:`MARKDOWN <pyrogram.ParseMode.MARKDOWN>` or :obj:`HTML <pyrogram.ParseMode.HTML>`
                if you want Telegram apps to show bold, italic, fixed-width text or inline URLs in your caption.
                Defaults to Markdown.

            duration (``int``, *optional*):
                Duration of sent GIF in seconds.

            width (``int``, *optional*):
                GIF width.

            height (``int``, *optional*):
                GIF height.

            thumb (``str``, *optional*):
                GIF thumbnail.
                Pass a file path as string to send an image that exists on your local machine.
                Thumbnail should have 90 or less pixels of width and 90 or less pixels of height.

            disable_notification (``bool``, *optional*):
                Sends the message silently.
                Users will receive a notification with no sound.

            reply_to_message_id (``int``, *optional*):
                If the message is a reply, ID of the original message.

            reply_markup (:obj:`InlineKeyboardMarkup` | :obj:`ReplyKeyboardMarkup` | :obj:`ReplyKeyboardRemove` | :obj:`ForceReply`, *optional*):
                Additional interface options. An object for an inline keyboard, custom reply keyboard,
                instructions to remove reply keyboard or to force a reply from the user.

            progress (``callable``, *optional*):
                Pass a callback function to view the upload progress.
                The function must take *(client, current, total, \*args)* as positional arguments (look at the section
                below for a detailed description).

            progress_args (``tuple``, *optional*):
                Extra custom arguments for the progress callback function. Useful, for example, if you want to pass
                a chat_id and a message_id in order to edit a message with the updated progress.

        Other Parameters:
            client (:obj:`Client <pyrogram.Client>`):
                The Client itself, useful when you want to call other API methods inside the callback function.

            current (``int``):
                The amount of bytes uploaded so far.

            total (``int``):
                The size of the file.

            *args (``tuple``, *optional*):
                Extra custom arguments as defined in the *progress_args* parameter.
                You can either keep *\*args* or add every single extra argument in your function signature.

        Returns:
            On success, the sent :obj:`Message <pyrogram.Message>` is returned.

        Raises:
            :class:`Error <pyrogram.Error>`
        """
        file = None
        style = self.html if parse_mode.lower() == "html" else self.markdown

        if os.path.exists(gif):
            thumb = None if thumb is None else self.save_file(thumb)
            file = self.save_file(gif, progress=progress, progress_args=progress_args)
            media = types.InputMediaUploadedDocument(
                mime_type=mimetypes.types_map[".mp4"],
                file=file,
                thumb=thumb,
                attributes=[
                    types.DocumentAttributeVideo(
                        supports_streaming=True,
                        duration=duration,
                        w=width,
                        h=height
                    ),
                    types.DocumentAttributeFilename(os.path.basename(gif)),
                    types.DocumentAttributeAnimated()
                ]
            )
        elif gif.startswith("http"):
            media = types.InputMediaDocumentExternal(
                url=gif
            )
        else:
            try:
                decoded = utils.decode(gif)
                fmt = "<iiqqqqi" if len(decoded) > 24 else "<iiqq"
                unpacked = struct.unpack(fmt, decoded)
            except (AssertionError, binascii.Error, struct.error):
                raise FileIdInvalid from None
            else:
                if unpacked[0] != 10:
                    media_type = BaseClient.MEDIA_TYPE_ID.get(unpacked[0], None)

                    if media_type:
                        raise FileIdInvalid("The file_id belongs to a {}".format(media_type))
                    else:
                        raise FileIdInvalid("Unknown media type: {}".format(unpacked[0]))

                media = types.InputMediaDocument(
                    id=types.InputDocument(
                        id=unpacked[2],
                        access_hash=unpacked[3]
                    )
                )

        while True:
            try:
                r = self.send(
                    functions.messages.SendMedia(
                        peer=self.resolve_peer(chat_id),
                        media=media,
                        silent=disable_notification or None,
                        reply_to_msg_id=reply_to_message_id,
                        random_id=self.rnd_id(),
                        reply_markup=reply_markup.write() if reply_markup else None,
                        **style.parse(caption)
                    )
                )
            except FilePartMissing as e:
                self.save_file(gif, file_id=file.id, file_part=e.x)
            else:
                for i in r.updates:
                    if isinstance(i, (types.UpdateNewMessage, types.UpdateNewChannelMessage)):
                        return utils.parse_messages(
                            self, i.message,
                            {i.id: i for i in r.users},
                            {i.id: i for i in r.chats}
                        )