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# ---------------------------------------------------------------------------------
# Name: ASCIIArt
# Description: Converting images to ASCII art
# Author: @hikka_mods
# ---------------------------------------------------------------------------------
# meta developer: @hikka_mods
# scope: ASCIIArt
# scope: ASCIIArt 0.0.1
# requires: pillow
# ---------------------------------------------------------------------------------

import os
import tempfile

from PIL import Image
from .. import loader, utils


@loader.tds
class ASCIIArtMod(loader.Module):
    """Converting images to ASCII art"""

    strings = {
        "name": "ASCIIArt",
        "no_media_reply": "<b>Please reply to the image!</b>",
        "loading": "<emoji document_id=5116240346656801621>❓</emoji> <b>Converting an image to ASCII...</b>",
        "error": "<emoji document_id=5121063440311386962>👎</emoji> <b>Error when converting an image.</b>",
        "done": "<emoji document_id=5123163417326126159>✅</emoji> <b>Here is your ASCII art:</b>",
    }

    strings_ru = {
        "no_media_reply": "<b>Пожалуйста, ответьте на изображение!</b>",
        "loading": "<emoji document_id=5116240346656801621>❓</emoji> <b>Конвертирую изображение в ASCII...</b>",
        "error": "<emoji document_id=5121063440311386962>👎</emoji> <b>Ошибка при конвертации изображения.</b>",
        "done": "<emoji document_id=5123163417326126159>✅</emoji> <b>Вот ваш ASCII-арт:</b>",
    }

    @loader.command(
        ru_doc="<реплай на изображение> сделать ascii art",
        en_doc="<replay on image> make ascii art",
    )
    async def cascii(self, message):
        reply = await message.get_reply_message()
        if not self._is_image(reply):
            await utils.answer(message, self.strings("no_media_reply"))
            return

        await utils.answer(message, self.strings("loading"))
        ascii_art = await self._generate_ascii_art(reply)

        if ascii_art:
            await self._send_ascii_file(message, ascii_art)
            await message.delete()
        else:
            await utils.answer(message, self.strings("error"))

    def _is_image(self, reply):
        """Проверка, является ли ответ изображением"""
        return reply and (
            reply.photo
            or (reply.document and reply.file.mime_type.startswith("image/"))
        )

    async def _generate_ascii_art(self, reply):
        """Генерирует ASCII-арт из изображения"""
        try:
            image_path = await reply.download_media(tempfile.gettempdir())
            if not image_path:
                return None
            with Image.open(image_path) as img:
                img = img.convert("L")
                img = img.resize(self._get_new_dimensions(img), Image.NEAREST)

                chars = "@#S%?*+;:,. "
                pixels = img.getdata()

                ascii_str = "".join(chars[pixel // 25] for pixel in pixels)
                return "\n".join(
                    ascii_str[i : i + img.width]
                    for i in range(0, len(ascii_str), img.width)
                )

        except Exception as e:
            print(f"Error generating ASCII art: {e}")
            return None
        finally:
            if image_path and os.path.exists(image_path):
                os.remove(image_path)

    def _get_new_dimensions(self, img):
        """Получаем новые размеры для изображения"""
        new_width = 100
        aspect_ratio = img.height / img.width
        new_height = int(aspect_ratio * new_width * 0.55)
        return new_width, new_height

    async def _send_ascii_file(self, message, ascii_art):
        """Сохраняет ASCII-арт во временный файл и отправляет его"""
        try:
            with tempfile.NamedTemporaryFile(
                mode="w", encoding="utf-8", suffix=".txt", delete=False
            ) as tmp_file:
                tmp_file_path = tmp_file.name
                tmp_file.write(ascii_art)

            await message.client.send_file(
                message.chat_id,
                tmp_file_path,
                caption=self.strings("done"),
                force_document=True,
                reply_to=getattr(message, "reply_to_msg_id", None),
            )
        finally:
            if tmp_file_path and os.path.exists(tmp_file_path):
                os.remove(tmp_file_path)