# Yandex.Market Content API Client

using System.Text;
using XyloCode.ThirdPartyServices.YandexMarket;
using XyloCode.ThirdPartyServices.YandexMarket.Enum;
using XyloCode.ThirdPartyServices.YandexMarket.QueryModels;
using XyloCode.ThirdPartyServices.YandexMarket.ResponseModels;


namespace YandexMarketConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string server = "http://market.apisystem.name/";
            string apiKey = "Get a token on the site https://www.apisystem.name/";
            var market = new YandexMarketConnection(server, apiKey);

            string jsonContent;

            #region Regions
            var childRegionQueue = new Queue<int>();
            var parentRegionQueue = new Queue<int>();

            RegionListResponseModel regionListResponse;
            RegionChildrenListResponseModel regionChildrenListResponse;


            var regionsRootRequest = new RegionListQueryModel()
            {
                count = 30,
                page = 0,
                fields = RegionFields.ALL,
            };

            do
            {
                regionsRootRequest.page++;
                regionListResponse = market.Request<RegionListQueryModel, RegionListResponseModel>(regionsRootRequest, out jsonContent);
                SaveToFile(jsonContent, $"RegionList_root_{regionsRootRequest.page}.json");

                foreach (var region in regionListResponse.Regions)
                {
                    if (region.ChildCount > 0)
                    {
                        childRegionQueue.Enqueue(region.Id);
                    }

                    if (region.ParentId > 0)
                    {
                        parentRegionQueue.Enqueue(region.ParentId.Value);
                    }
                }

                
            } while (regionsRootRequest.page < regionListResponse.Context.Page.Total);


            while (childRegionQueue.Count > 0)
            {
                var parent = childRegionQueue.Dequeue();
                var childRegionRequest = new RegionChildrenListQueryModel(parent)
                {
                    count = 30,
                    page = 0,
                    fields = RegionFields.ALL,
                };

                do
                {
                    childRegionRequest.page++;
                    regionChildrenListResponse = market.Request<RegionChildrenListQueryModel, RegionChildrenListResponseModel>(childRegionRequest, out jsonContent);
                    SaveToFile(jsonContent, $"RegionList_ChildOf_{parent}_{childRegionRequest.page}.json");

                    foreach (var region in regionListResponse.Regions)
                    {
                        if (region.ChildCount > 0)
                        {
                            childRegionQueue.Enqueue(region.Id);
                        }
                    }
                } while (childRegionRequest.page < regionChildrenListResponse.Context.Page.Total);
            }

            while (parentRegionQueue.Count > 0)
            {
                // like childRegionQueue
                break;
            }
            #endregion Regions


            #region Categories
            CategoryListResponseModel categoryListResponse;
            CategoryChildrenListResponseModel categoryChildrenListResponse;

            int example_region_id = 2;
            var categoryListRequest = new CategoryListQueryModel(example_region_id)
            {
                count = 30,
                page = 0,
                fields = CategoryFields.ALL,
            };

            // next like Regions
            #endregion Categories


            #region Top Models
            ModelPopularListResponseModel popularListResponse;
            
            int exampleCategoryId = 123;
            var popularListRequest = new ModelPopularListQueryModel(exampleCategoryId)
            {
                count = 30,
                page = 0,
                fields = ModelFields.STANDARD,
            };

            do
            {
                popularListRequest.page++;
                popularListResponse = market.Request<ModelPopularListQueryModel, ModelPopularListResponseModel>(popularListRequest, out jsonContent);
                SaveToFile(jsonContent, $"PopModels_Category_{exampleCategoryId}_{popularListRequest.page}.json");

            } while (popularListRequest.page < popularListResponse.Context.Page.Total);
            #endregion Top Models


            Console.Beep();
            Console.WriteLine("End!");
        }


        public static void SaveToFile(string jsonContent, string fileName)
        {

            var sw = new StreamWriter($"{fileName}", false, Encoding.UTF8);
            sw.WriteLine(jsonContent);
            sw.Close();
        }
    }
}