"""
Ticket admin blueprint — check-in interface and ticket management.

Routes:
  GET  /admin/tickets/              — Ticket dashboard (scan + list)
  GET  /admin/tickets/entry/<id>/   — Tickets for a specific entry
  POST /admin/tickets/<code>/checkin — Check in a ticket
  GET  /admin/tickets/<code>/       — Ticket admin detail
"""
from __future__ import annotations

import logging

from quart import (
    Blueprint, g, request, render_template, make_response, jsonify,
)
from sqlalchemy import select, func
from sqlalchemy.orm import selectinload

from models.calendars import CalendarEntry, Ticket, TicketType
from shared.browser.app.authz import require_admin
from shared.browser.app.redis_cacher import clear_cache
from shared.sx.helpers import sx_response

from ..tickets.services.tickets import (
    get_ticket_by_code,
    get_tickets_for_entry,
    checkin_ticket,
)

logger = logging.getLogger(__name__)


def register() -> Blueprint:
    bp = Blueprint("ticket_admin", __name__, url_prefix="/admin/tickets")

    @bp.get("/")
    @require_admin
    async def dashboard():
        """Ticket admin dashboard with QR scanner and recent tickets."""
        from shared.browser.app.utils.htmx import is_htmx_request

        # Get recent tickets
        result = await g.s.execute(
            select(Ticket)
            .options(
                selectinload(Ticket.entry).selectinload(CalendarEntry.calendar),
                selectinload(Ticket.ticket_type),
            )
            .order_by(Ticket.created_at.desc())
            .limit(50)
        )
        tickets = result.scalars().all()

        # Stats
        total = await g.s.scalar(select(func.count(Ticket.id)))
        confirmed = await g.s.scalar(
            select(func.count(Ticket.id)).where(Ticket.state == "confirmed")
        )
        checked_in = await g.s.scalar(
            select(func.count(Ticket.id)).where(Ticket.state == "checked_in")
        )
        reserved = await g.s.scalar(
            select(func.count(Ticket.id)).where(Ticket.state == "reserved")
        )

        stats = {
            "total": total or 0,
            "confirmed": confirmed or 0,
            "checked_in": checked_in or 0,
            "reserved": reserved or 0,
        }

        from shared.sx.page import get_template_context
        from sx.sx_components import render_ticket_admin_page, render_ticket_admin_oob

        ctx = await get_template_context()
        if not is_htmx_request():
            html = await render_ticket_admin_page(ctx, tickets, stats)
            return await make_response(html, 200)
        else:
            sx_src = await render_ticket_admin_oob(ctx, tickets, stats)
            return sx_response(sx_src)

    @bp.get("/entry/<int:entry_id>/")
    @require_admin
    async def entry_tickets(entry_id: int):
        """List all tickets for a specific calendar entry."""
        from shared.browser.app.utils.htmx import is_htmx_request

        entry = await g.s.scalar(
            select(CalendarEntry)
            .where(
                CalendarEntry.id == entry_id,
                CalendarEntry.deleted_at.is_(None),
            )
            .options(selectinload(CalendarEntry.calendar))
        )
        if not entry:
            return await make_response("Entry not found", 404)

        tickets = await get_tickets_for_entry(g.s, entry_id)

        from sx.sx_components import render_entry_tickets_admin
        html = render_entry_tickets_admin(entry, tickets)
        return sx_response(html)

    @bp.get("/lookup/")
    @require_admin
    async def lookup():
        """Look up a ticket by code (used by scanner)."""
        code = request.args.get("code", "").strip()
        if not code:
            return await make_response(
                '<div class="text-sm text-stone-500">Enter a ticket code</div>',
                200,
            )

        ticket = await get_ticket_by_code(g.s, code)
        from sx.sx_components import render_lookup_result
        if not ticket:
            return sx_response(render_lookup_result(None, "Ticket not found"))

        return sx_response(render_lookup_result(ticket, None))

    @bp.post("/<code>/checkin/")
    @require_admin
    @clear_cache(tag="calendars", tag_scope="all")
    async def do_checkin(code: str):
        """Check in a ticket by its code."""
        success, error = await checkin_ticket(g.s, code)

        from sx.sx_components import render_checkin_result
        if not success:
            return sx_response(render_checkin_result(False, error, None))

        ticket = await get_ticket_by_code(g.s, code)
        return sx_response(render_checkin_result(True, None, ticket))

    return bp