from datetime import datetime
from app.settings_cache import SettingsCache
from app.conversation import get_or_create_user, get_template_rendered
from app.fsm import BotState, FSM


async def handle_broadcast_send(bot, user_data: dict, db, max_api):
    from app.models.models import BotUser
    from sqlalchemy import select

    text = user_data.get("text", "").strip()
    if not text:
        await max_api.send_message(
            user_data["user_id"],
            "Укажите текст рассылки в параметре broadcast_text."
        )
        return

    result = await db.execute(select(BotUser).where(BotUser.consent_given == True))
    users = result.scalars().all()
    sent = 0
    failed = 0
    sent_ids = []
    for u in users:
        try:
            await max_api.send_message(user_id=u.max_user_id, text=text, format="markdown")
            sent += 1
            sent_ids.append(u.max_user_id)
        except Exception:
            failed += 1

    from app.models.models import BotBroadcast
    bc = BotBroadcast(
        text=text,
        sent_at=datetime.now(),
        recipient_count=len(users),
        recipient_ids=sent_ids,
        status="sent",
    )
    db.add(bc)
    await db.flush()

    result = f"📨 Рассылка завершена.\nОтправлено: {sent}\nОшибок: {failed}"
    await max_api.send_message(user_data["user_id"], result)