using System.Text.Json;
using System.Text.Json.Nodes;
using FsToolbox.Cli.Helper;
using NLog;

namespace FsToolbox.Cli.Tasks
{
    public static partial class RegionTasks
    {
        private static readonly Logger Logger = LoggingService.GetLogger(nameof(RegionTasks));

        #region Public Method GetStoresInRegionAsync

        /// <summary>
        ///     Retrieves all stores within the specified region, ensuring the request is authenticated.
        /// </summary>
        /// <param name="httpClient">The HTTP client used to perform the request.</param>
        /// <param name="regionId">The region identifier to query.</param>
        /// <returns>A list of stores, or an empty list when the call fails or returns no data.</returns>
        public static async Task<List<Store>> GetStoresInRegionAsync(HttpClient httpClient, int regionId)
        {
            await AuthHelper.EnsureAuthenticationAsync(httpClient);

            var uri = string.Format(Endpoints.RegionStores, regionId);
            var response = await httpClient.GetAsync(uri);
            var responseBody = await response.Content.ReadAsStringAsync();

            // handle unsuccessful response
            if (!response.IsSuccessStatusCode)
            {
                Logger.Error("Region stores retrieval failed ({Status} {Reason}): {Body}", (int)response.StatusCode, response.ReasonPhrase, responseBody);
                return [];
            }

            Logger.Info("Stores in region {RegionId}:", regionId);
            Logger.Info(responseBody);

            var root = JsonNode.Parse(responseBody);
            if (root == null) return [];

            // Deserialize JsonNode to List<Pickup>
            var opts = new JsonSerializerOptions
            {
                PropertyNameCaseInsensitive = true,
                PropertyNamingPolicy = null // <── WICHTIG
            };

            return root["stores"].Deserialize<List<Store>>(opts) ?? [];
        }

        #endregion
    }
}