from __future__ import annotations
from loguru import logger

import asyncio
from datetime import datetime
from typing import Any, Optional
from aiogram import Bot
try:
    from .config import settings
except (ImportError, ValueError):
    from config import settings


class AdminNotifier:
    def __init__(self, bot: Bot) -> None:
        self.bot = bot
        self.admin_ids = settings.admin_id_list

    async def send_to_all(self, text: str) -> None:
        if not self.admin_ids:
            return

        for admin_id in self.admin_ids:
            try:
                await self.bot.send_message(
                    chat_id=admin_id,
                    text=text,
                    parse_mode="HTML",
                    disable_web_page_preview=True,
                )
            except Exception as exc:
                logger.warning("Failed to send report to admin {}: {}", admin_id, exc)

    async def notify_cycle_result(
        self,
        group_name: str,
        vk_url: str,
        found_posts: list[dict[str, Any]],
        error: Optional[str] = None,
    ) -> None:
        if not self.admin_ids:
            return

        # If 0 posts found and no error, check settings
        if not found_posts and not error:
            if not settings.report_empty_runs:
                return

        now_str = datetime.now().strftime("%Y-%m-%d %H:%M:%S")

        if error:
            text = (
                f"⚠️ <b>[VK Poster Alert] Ошибка при проверке группы</b>\n\n"
                f"🏷 <b>Группа:</b> {group_name} (<a href=\"{vk_url}\">VK</a>)\n"
                f"⏱ <b>Время:</b> <code>{now_str}</code>\n"
                f"❌ <b>Ошибка:</b> <code>{error}</code>"
            )
            await self.send_to_all(text)
            return

        if not found_posts:
            text = (
                f"ℹ️ <b>[VK Poster] Проверка завершена</b>\n\n"
                f"🏷 <b>Группа:</b> {group_name} (<a href=\"{vk_url}\">VK</a>)\n"
                f"⏱ <b>Время:</b> <code>{now_str}</code>\n"
                f"📥 Новых постов не обнаружено."
            )
            await self.send_to_all(text)
            return

        # We have published posts
        lines = [
            f"🚀 <b>[VK Poster] Опубликованы новые посты!</b>\n",
            f"🏷 <b>Группа:</b> {group_name} (<a href=\"{vk_url}\">VK</a>)",
            f"⏱ <b>Время:</b> <code>{now_str}</code>",
            f"📊 <b>Количество:</b> {len(found_posts)}\n",
            "<b>Список публикаций:</b>",
        ]

        for idx, p in enumerate(found_posts, 1):
            post_id = p.get("vk_post_id")
            vk_post_url = p.get("vk_post_url")
            tg_url = p.get("tg_url")
            max_url = p.get("max_url")
            tg_status = p.get("tg_status")
            max_status = p.get("max_status")
            tg_err = p.get("tg_error")
            max_err = p.get("max_error")

            lines.append(f"\n<b>{idx}. Пост #{post_id}</b>")
            lines.append(f"• <a href=\"{vk_post_url}\">Оригинал в VK</a>")

            if tg_status == "published":
                tg_link = f"<a href=\"{tg_url}\">Ссылка</a>" if tg_url else "Опубликовано"
                lines.append(f"• Telegram: ✅ {tg_link}")
            elif tg_err:
                lines.append(f"• Telegram: ❌ Ошибка: <code>{tg_err[:100]}</code>")

            if max_status == "published":
                max_link = f"<a href=\"{max_url}\">Ссылка</a>" if max_url else "Опубликовано"
                lines.append(f"• MAX: ✅ {max_link}")
            elif max_err:
                lines.append(f"• MAX: ❌ Ошибка: <code>{max_err[:100]}</code>")

        await self.send_to_all("\n".join(lines))