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

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

from shared.infrastructure.factory import create_base_app
from shared.config import config
from shared.models import KV

from bp import (
    register_auth_bp,
    register_blog_bp,
    register_admin,
    register_menu_items,
    register_snippets,
    register_coop_api,
)


async def coop_context() -> dict:
    """
    Coop app context processor.

    - menu_items: direct DB query (coop owns this data)
    - cart_count/cart_total: fetched from cart internal API
    """
    from shared.infrastructure.context import base_context
    from bp.menu_items.services.menu_items import get_all_menu_items
    from shared.infrastructure.internal_api import get as api_get

    ctx = await base_context()

    # Coop owns menu_items — query directly
    ctx["menu_items"] = await get_all_menu_items(g.s)

    # Cart data from cart app 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":
    app = create_base_app("coop", context_fn=coop_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,
    ])

    # --- blueprints ---
    app.register_blueprint(register_auth_bp())

    app.register_blueprint(
        register_blog_bp(
            url_prefix=config()["blog_root"],
            title=config()["blog_title"],
        ),
        url_prefix=config()["blog_root"],
    )

    app.register_blueprint(register_admin("/settings"))
    app.register_blueprint(register_menu_items())
    app.register_blueprint(register_snippets())

    # Internal API (server-to-server, CSRF-exempt)
    app.register_blueprint(register_coop_api())

    # --- KV admin endpoints ---
    @app.get("/settings/kv/<key>")
    async def kv_get(key: str):
        row = (
            await g.s.execute(select(KV).where(KV.key == key))
        ).scalar_one_or_none()
        return {"key": key, "value": (row.value if row else None)}

    @app.post("/settings/kv/<key>")
    async def kv_set(key: str):
        data = await request.get_json() or {}
        val = data.get("value", "")
        obj = await g.s.get(KV, key)
        if obj is None:
            obj = KV(key=key, value=val)
            g.s.add(obj)
        else:
            obj.value = val
        return {"ok": True, "key": key, "value": val}

    # --- debug: url rules ---
    @app.get("/__rules")
    async def dump_rules():
        rules = []
        for r in app.url_map.iter_rules():
            rules.append({
                "endpoint": r.endpoint,
                "rule": repr(r.rule),
                "methods": sorted(r.methods - {"HEAD", "OPTIONS"}),
                "strict_slashes": r.strict_slashes,
            })
        return {"rules": rules}

    return app


app = create_app()