"""Background sync loop: watches bot_drafts for updates from Web Wizard or external API.

If a draft was updated in the Wizard:
  - If status == 'active': re-renders review text & keyboard in Bale so chat reflects edits.
  - If status == 'committed': edits Bale message to show it was committed and removes buttons.
  - If status == 'cancelled': edits Bale message to show it was cancelled and removes buttons.
"""
import asyncio
import logging
from app import drafts as draft_store
from app.handlers import quote

logger = logging.getLogger("bot.sync")


async def sync_drafts_loop(ctx) -> None:
    while True:
        try:
            pending = await draft_store.get_pending_bale_updates()
            for draft in pending:
                try:
                    if not draft.review_message_id:
                        await draft_store.set_bale_updated_at(draft.id)
                        continue

                    if draft.status == "committed":
                        payload = draft.payload or {}
                        quote_id = payload.get("committed_quote_id") or ""
                        msg = "✅ این پیشنهاد با موفقیت در سیستم ثبت نهایی شد."
                        if quote_id:
                            msg += f"\nشناسه پیشنهاد: {quote_id}"
                        await ctx.bale.edit_message_text(draft.chat_id, draft.review_message_id, msg, reply_markup=None)
                        await draft_store.set_bale_updated_at(draft.id)
                        logger.info("Synced committed draft %s to Bale message %s", draft.id, draft.review_message_id)

                    elif draft.status == "cancelled":
                        msg = "❌ این پیش‌نویس لغو شد."
                        await ctx.bale.edit_message_text(draft.chat_id, draft.review_message_id, msg, reply_markup=None)
                        await draft_store.set_bale_updated_at(draft.id)
                        logger.info("Synced cancelled draft %s to Bale message %s", draft.id, draft.review_message_id)

                    elif draft.status == "active" and draft.kind == draft_store.KIND_QUOTE:
                        await quote.render(ctx, draft.chat_id, draft, fresh=False)
                        await draft_store.set_bale_updated_at(draft.id)
                        logger.info("Synced active draft %s edits to Bale message %s", draft.id, draft.review_message_id)

                    else:
                        await draft_store.set_bale_updated_at(draft.id)

                except Exception as exc:
                    logger.warning("Failed to sync draft %s to Bale: %s", draft.id, exc)
                    await draft_store.set_bale_updated_at(draft.id)

        except asyncio.CancelledError:
            break
        except Exception:
            logger.exception("Error in sync_drafts_loop")

        await asyncio.sleep(1.5)