import logging

import aiohttp_jinja2
from telethon.tl import types
from telethon.tl.custom import Message
from jinja2 import Markup

from app.util import get_file_name, get_human_size
from app.config import block_downloads


log = logging.getLogger(__name__)


class InfoView:
    @aiohttp_jinja2.template("info.html")
    async def info(self, req):
        file_id = int(req.match_info["id"])
        alias_id = req.match_info["chat"]
        chat = self.chat_ids[alias_id]
        chat_id = chat["chat_id"]
        try:
            message = await self.client.get_messages(entity=chat_id, ids=file_id)
        except Exception:
            log.debug(f"Error in getting message {file_id} in {chat_id}", exc_info=True)
            message = None

        if not message or not isinstance(message, Message):
            log.debug(f"no valid entry for {file_id} in {chat_id}")
            return {
                "found": False,
                "reason": "Resource you are looking for cannot be retrived!",
                "authenticated": req.app["is_authenticated"],
            }

        return_val = {
            "authenticated": req.app["is_authenticated"],
        }
        reply_btns = []
        if message.reply_markup:
            if isinstance(message.reply_markup, types.ReplyInlineMarkup):
                reply_btns = [
                    [
                        {"url": button.url, "text": button.text}
                        for button in button_row.buttons
                        if isinstance(button, types.KeyboardButtonUrl)
                    ]
                    for button_row in message.reply_markup.rows
                ]

        if message.file and not isinstance(message.media, types.MessageMediaWebPage):
            file_name = get_file_name(message)
            human_file_size = get_human_size(message.file.size)
            media = {"type": message.file.mime_type}
            if "video/" in message.file.mime_type:
                media["video"] = True
            elif "audio/" in message.file.mime_type:
                media["audio"] = True
            elif "image/" in message.file.mime_type:
                media["image"] = True

            if message.text:
                caption = message.raw_text
            else:
                caption = ""

            caption_html = Markup.escape(caption).__str__().replace("\n", "<br>")
            return_val.update(
                {
                    "found": True,
                    "name": file_name,
                    "file_id": file_id,
                    "human_size": human_file_size,
                    "media": media,
                    "caption_html": caption_html,
                    "title": f"Download | {file_name} | {human_file_size}",
                    "reply_btns": reply_btns,
                    "thumbnail": f"/{alias_id}/{file_id}/thumbnail",
                    "download_url": "#"
                    if block_downloads
                    else f"/{alias_id}/{file_id}/download",
                    "page_id": alias_id,
                    "block_downloads": block_downloads,
                }
            )
        elif message.message:
            text = message.raw_text
            text_html = Markup.escape(text).__str__().replace("\n", "<br>")
            return_val.update(
                {
                    "found": True,
                    "media": False,
                    "text_html": text_html,
                    "reply_btns": reply_btns,
                    "page_id": alias_id,
                }
            )
        else:
            return_val.update(
                {
                    "found": False,
                    "reason": "Some kind of resource that I cannot display",
                }
            )

        log.debug(f"data for {file_id} in {chat_id} returned as {return_val}")
        return return_val