"""Market app data endpoints.

Exposes read-only JSON queries at ``/internal/data/<query_name>`` for
cross-app callers via the internal data client.
"""
from __future__ import annotations

from quart import Blueprint, g, jsonify, request

from shared.infrastructure.data_client import DATA_HEADER
from shared.contracts.dtos import dto_to_dict
from shared.services.registry import services


def register() -> Blueprint:
    bp = Blueprint("data", __name__, url_prefix="/internal/data")

    @bp.before_request
    async def _require_data_header():
        if not request.headers.get(DATA_HEADER):
            return jsonify({"error": "forbidden"}), 403

    _handlers: dict[str, object] = {}

    @bp.get("/<query_name>")
    async def handle_query(query_name: str):
        handler = _handlers.get(query_name)
        if handler is None:
            return jsonify({"error": "unknown query"}), 404
        result = await handler()
        return jsonify(result)

    # --- marketplaces-for-container ---
    async def _marketplaces_for_container():
        container_type = request.args.get("type", "")
        container_id = request.args.get("id", type=int)
        markets = await services.market.marketplaces_for_container(
            g.s, container_type, container_id,
        )
        return [dto_to_dict(m) for m in markets]

    _handlers["marketplaces-for-container"] = _marketplaces_for_container

    return bp