from __future__ import annotations

import path_setup  # noqa: F401  # adds shared_lib to sys.path
from pathlib import Path

from quart import g, abort
from jinja2 import FileSystemLoader, ChoiceLoader
from sqlalchemy import select

from shared.infrastructure.factory import create_base_app

from bp import register_calendars, register_markets, register_payments


async def events_context() -> dict:
    """
    Events app context processor.

    - menu_items: direct DB query via glue layer
    - cart_count/cart_total: fetched from cart internal API
    """
    from shared.infrastructure.context import base_context
    from glue.services.navigation import get_navigation_tree
    from shared.infrastructure.internal_api import get as api_get

    ctx = await base_context()

    ctx["menu_items"] = await get_navigation_tree(g.s)

    # Cart data from cart API
    cart_data = await api_get("cart", "/internal/cart/summary", forward_session=True)
    if cart_data:
        ctx["cart_count"] = cart_data.get("count", 0)
        ctx["cart_total"] = cart_data.get("total", 0)
    else:
        ctx["cart_count"] = 0
        ctx["cart_total"] = 0

    return ctx


def create_app() -> "Quart":
    from blog.models.ghost_content import Post
    from models.calendars import Calendar
    from market.models.market_place import MarketPlace

    app = create_base_app("events", context_fn=events_context)

    # App-specific templates override shared templates
    app_templates = str(Path(__file__).resolve().parent / "templates")
    app.jinja_loader = ChoiceLoader([
        FileSystemLoader(app_templates),
        app.jinja_loader,
    ])

    # Calendars nested under post slug: /<slug>/calendars/...
    app.register_blueprint(
        register_calendars(),
        url_prefix="/<slug>/calendars",
    )

    # Markets nested under post slug: /<slug>/markets/...
    app.register_blueprint(
        register_markets(),
        url_prefix="/<slug>/markets",
    )

    # Payments nested under post slug: /<slug>/payments/...
    app.register_blueprint(
        register_payments(),
        url_prefix="/<slug>/payments",
    )

    # --- Auto-inject slug into url_for() calls ---
    @app.url_value_preprocessor
    def pull_slug(endpoint, values):
        if values and "slug" in values:
            g.post_slug = values.pop("slug")

    @app.url_defaults
    def inject_slug(endpoint, values):
        slug = g.get("post_slug")
        if slug and "slug" not in values:
            if app.url_map.is_endpoint_expecting(endpoint, "slug"):
                values["slug"] = slug

    # --- Load post data for slug ---
    @app.before_request
    async def hydrate_post():
        slug = getattr(g, "post_slug", None)
        if not slug:
            return
        post = (
            await g.s.execute(
                select(Post).where(Post.slug == slug)
            )
        ).scalar_one_or_none()
        if not post:
            abort(404)
        g.post_data = {
            "post": {
                "id": post.id,
                "title": post.title,
                "slug": post.slug,
                "feature_image": post.feature_image,
                "status": post.status,
                "visibility": post.visibility,
            },
        }

    @app.context_processor
    async def inject_post():
        post_data = getattr(g, "post_data", None)
        if not post_data:
            return {}
        post_id = post_data["post"]["id"]
        calendars = (
            await g.s.execute(
                select(Calendar)
                .where(Calendar.container_type == "page", Calendar.container_id == post_id, Calendar.deleted_at.is_(None))
                .order_by(Calendar.name.asc())
            )
        ).scalars().all()
        markets = (
            await g.s.execute(
                select(MarketPlace)
                .where(MarketPlace.container_type == "page", MarketPlace.container_id == post_id, MarketPlace.deleted_at.is_(None))
                .order_by(MarketPlace.name.asc())
            )
        ).scalars().all()
        return {
            **post_data,
            "calendars": calendars,
            "markets": markets,
        }

    # Tickets blueprint — user-facing ticket views and QR codes
    from bp.tickets.routes import register as register_tickets
    app.register_blueprint(register_tickets())

    # Ticket admin — check-in interface (admin only)
    from bp.ticket_admin.routes import register as register_ticket_admin
    app.register_blueprint(register_ticket_admin())

    # Internal API (server-to-server, CSRF-exempt)
    from events_api import register as register_events_api
    app.register_blueprint(register_events_api())

    return app


app = create_app()