"""Shared API response helpers.

Used by all API blueprints to produce consistent JSON responses
per the API response contract: ``{"ok": true, "data": <value>}`` /
``{"ok": false, "error": "msg"}``.
"""

from flask import jsonify


def _ok(data=None):
    """Return a success JSON response."""
    return jsonify({"ok": True, "data": data})


def _error(msg: str, code: int = 400):
    """Return an error JSON response with the given HTTP status code."""
    return jsonify({"ok": False, "error": msg}), code