from __future__ import annotations
import path_setup  # noqa: F401  # adds shared/ to sys.path
from pathlib import Path

from quart import g, request
from jinja2 import FileSystemLoader, ChoiceLoader

from shared.infrastructure.factory import create_base_app
from shared.services.registry import services

from bp import (
    register_identity_bp,
    register_social_bp,
)


async def federation_context() -> dict:
    """Federation app context processor."""
    from shared.infrastructure.context import base_context
    from shared.infrastructure.cart_identity import current_cart_identity
    from shared.infrastructure.fragments import fetch_fragments
    from shared.infrastructure.data_client import fetch_data
    from shared.contracts.dtos import CartSummaryDTO, dto_from_dict

    ctx = await base_context()

    # menu_nodes lives in db_blog; nav-tree fragment provides the real nav
    ctx["menu_items"] = []

    # Cart data via internal data endpoint
    ident = current_cart_identity()
    summary_params = {}
    if ident["user_id"] is not None:
        summary_params["user_id"] = ident["user_id"]
    if ident["session_id"] is not None:
        summary_params["session_id"] = ident["session_id"]
    raw = await fetch_data("cart", "cart-summary", params=summary_params, required=False)
    summary = dto_from_dict(CartSummaryDTO, raw) if raw else CartSummaryDTO()
    ctx["cart_count"] = summary.count + summary.calendar_count + summary.ticket_count
    ctx["cart_total"] = float(summary.total + summary.calendar_total + summary.ticket_total)

    # Pre-fetch cross-app HTML fragments concurrently
    user = getattr(g, "user", None)
    cart_params = {}
    if ident["user_id"] is not None:
        cart_params["user_id"] = ident["user_id"]
    if ident["session_id"] is not None:
        cart_params["session_id"] = ident["session_id"]

    cart_mini, auth_menu, nav_tree = await fetch_fragments([
        ("cart", "cart-mini", cart_params or None),
        ("account", "auth-menu", {"email": user.email} if user else None),
        ("blog", "nav-tree", {"app_name": "federation", "path": request.path}),
    ])
    ctx["cart_mini"] = cart_mini
    ctx["auth_menu"] = auth_menu
    ctx["nav_tree"] = nav_tree

    # Actor profile for logged-in users
    if g.get("user"):
        actor = await services.federation.get_actor_by_user_id(g.s, g.user.id)
        ctx["actor"] = actor
    else:
        ctx["actor"] = None

    return ctx


def create_app() -> "Quart":
    from services import register_domain_services

    app = create_base_app(
        "federation",
        context_fn=federation_context,
        domain_services_fn=register_domain_services,
    )

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

    # Load .sx component files and setup defpage routes
    from shared.sx.jinja_bridge import load_service_components
    load_service_components(str(Path(__file__).resolve().parent), service_name="federation")
    from sxc.pages import setup_federation_pages
    setup_federation_pages()

    # --- blueprints ---
    # Well-known + actors (webfinger, inbox, outbox, etc.) are now handled
    # by the shared AP blueprint registered in create_base_app().
    app.register_blueprint(register_identity_bp())

    social_bp = register_social_bp()
    app.register_blueprint(social_bp)

    from shared.sx.pages import auto_mount_pages
    auto_mount_pages(app, "federation")

    from shared.sx.handlers import auto_mount_fragment_handlers
    auto_mount_fragment_handlers(app, "federation")

    # --- home page ---
    @app.get("/")
    async def home():
        from quart import make_response
        from shared.sx.page import get_template_context
        from shared.sx.helpers import root_header_sx, full_page_sx

        ctx = await get_template_context()
        hdr = await root_header_sx(ctx)
        html = await full_page_sx(ctx, header_rows=hdr)
        return await make_response(html)

    return app


app = create_app()
