import logging
from datetime import datetime
from os import makedirs, path
from random import choice
from shutil import rmtree
from traceback import format_exc
from uuid import uuid4

import aiofiles
from aiohttp import ClientSession
from photosapi_client.errors import UnexpectedStatus
from PIL import Image
from pyrogram.client import Client

from modules.api_client import authorize, client, photo_find, photo_patch
from modules.database import col_sent, col_submitted

logger = logging.getLogger(__name__)


async def send_content(app: Client, http_session: ClientSession) -> None:
    try:
        try:
            token = await authorize(http_session)
        except ValueError:
            await app.send_message(
                app.owner,
                app._("api_creds_invalid", "message"),
            )
            return

        try:
            pic = choice(
                (
                    await photo_find(
                        album=app.config["posting"]["api"]["album"],
                        caption="queue",
                        page_size=app.config["posting"]["page_size"],
                        client=client,
                    )
                ).results
            )
        except (KeyError, AttributeError, TypeError, IndexError):
            logger.info(app._("post_empty", "console"))
            if app.config["reports"]["error"]:
                await app.send_message(
                    app.owner,
                    app._("api_queue_empty", "message"),
                )
            return
        except (ValueError, UnexpectedStatus):
            if app.config["reports"]["error"]:
                await app.send_message(
                    app.owner,
                    app._("api_queue_error", "message"),
                )
            return

        response = await http_session.get(
            f"{app.config['posting']['api']['address']}/photos/{pic.id}",
            headers={"Authorization": f"Bearer {token}"},
        )

        if response.status != 200:
            logger.warning(
                app._("post_invalid_pic", "console").format(
                    response.status, str(await response.json())
                )
            )
            if app.config["reports"]["error"]:
                await app.send_message(
                    app.owner,
                    app._("post_invalid_pic", "message").format(
                        response.status, await response.json()
                    ),
                )

        tmp_dir = str(uuid4())

        makedirs(path.join(app.config["locations"]["tmp"], tmp_dir), exist_ok=True)

        tmp_path = path.join(tmp_dir, pic.filename)

        async with aiofiles.open(
            path.join(app.config["locations"]["tmp"], tmp_path), "wb"
        ) as out_file:
            await out_file.write(await response.read())

        logger.info(
            f"Candidate {pic.filename} ({pic.id}) is {path.getsize(path.join(app.config['locations']['tmp'], tmp_path))} bytes big",
        )

        if path.getsize(path.join(app.config["locations"]["tmp"], tmp_path)) > 5242880:
            image = Image.open(path.join(app.config["locations"]["tmp"], tmp_path))
            width, height = image.size
            image = image.resize((int(width / 2), int(height / 2)), Image.ANTIALIAS)
            if tmp_path.lower().endswith(".jpeg") or tmp_path.lower().endswith(".jpg"):
                image.save(
                    path.join(app.config["locations"]["tmp"], tmp_path),
                    "JPEG",
                    optimize=True,
                    quality=50,
                )
            elif tmp_path.lower().endswith(".png"):
                image.save(
                    path.join(app.config["locations"]["tmp"], tmp_path),
                    "PNG",
                    optimize=True,
                    compress_level=8,
                )
            image.close()

        if path.getsize(path.join(app.config["locations"]["tmp"], tmp_path)) > 5242880:
            rmtree(
                path.join(app.config["locations"]["tmp"], tmp_dir), ignore_errors=True
            )
            raise BytesWarning

        del response

        submitted = col_submitted.find_one({"temp.file": pic.filename})

        if submitted is not None and submitted["caption"] is not None:
            caption = submitted["caption"].strip()
        else:
            caption = ""

        if (
            submitted is not None
            and app.config["posting"]["submitted_caption"]["enabled"]
            and (
                (submitted["user"] not in app.admins)
                or (
                    app.config["posting"]["submitted_caption"]["ignore_admins"] is False
                )
            )
        ):
            caption = (
                f"{caption}\n\n{app.config['posting']['submitted_caption']['text']}\n"
            )
        else:
            caption = f"{caption}\n\n"

        if app.config["caption"]["enabled"]:
            if app.config["caption"]["link"] is not None:
                caption = f"{caption}[{choice(app.config['caption']['text'])}]({app.config['caption']['link']})"
            else:
                caption = f"{caption}{choice(app.config['caption']['text'])}"
        else:
            caption = caption

        try:
            sent = await app.send_photo(
                app.config["posting"]["channel"],
                path.join(app.config["locations"]["tmp"], tmp_path),
                caption=caption,
                disable_notification=app.config["posting"]["silent"],
            )
        except Exception as exp:
            logger.error(f"Could not send image {pic.filename} ({pic.id}) due to {exp}")
            if app.config["reports"]["error"]:
                await app.send_message(
                    app.owner,
                    app._("post_exception", "message").format(exp, format_exc()),
                )
            # rmtree(path.join(app.config['locations']['tmp'], tmp_dir), ignore_errors=True)
            return

        col_sent.insert_one(
            {
                "date": datetime.now(),
                "image": pic.id,
                "filename": pic.filename,
                "channel": app.config["posting"]["channel"],
                "caption": None
                if (submitted is None or submitted["caption"] is None)
                else submitted["caption"].strip(),
            }
        )

        await photo_patch(id=pic.id, client=client, caption="sent")

        rmtree(path.join(app.config["locations"]["tmp"], tmp_dir), ignore_errors=True)

        logger.info(
            app._("post_sent", "console").format(
                pic.id,
                str(app.config["posting"]["channel"]),
                caption.replace("\n", "%n"),
                str(app.config["posting"]["silent"]),
            )
        )

    except Exception as exp:
        logger.error(app._("post_exception", "console").format(str(exp), format_exc()))
        if app.config["reports"]["error"]:
            await app.send_message(
                app.owner,
                app._("post_exception", "message").format(exp, format_exc()),
            )
        try:
            rmtree(
                path.join(app.config["locations"]["tmp"], tmp_dir), ignore_errors=True
            )
        except:
            pass