using KdanCommon.CMSCollection.Data;
using KdanCommon.Helpers;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Windows.Data.Json;
using Windows.Globalization;
using Windows.Web.Http;
using Windows.Web.Http.Filters;

namespace KdanCommon.CMSCollection
{
    public class CMSCollection
    {
        public static string CMSDomain = "https://cms.kdanmobile.com";

        private List<ISetting> settingList = null;
        private HttpClient httpClient = null;
        private Uri windowsCardsUri = null;
        private Uri pdfViewerEventBarSettingUri = null;
        private Uri pdfOtherSettingUri = null;
        private string appType = null;
        private bool loadCardsOnly = false;
        private SemaphoreSlim loadSettingSS = new SemaphoreSlim(1);
        private bool isLoaded = false;

        public CMSCollection(string appType, bool loadCardOnly = true)
        {
            var filter = new HttpBaseProtocolFilter();
            filter.CacheControl.ReadBehavior = HttpCacheReadBehavior.MostRecent;
            httpClient = new HttpClient(filter);
            windowsCardsUri = new Uri($"{CMSDomain}/items/windows_cards");
            pdfViewerEventBarSettingUri = new Uri($"{CMSDomain}/items/pdf_remote_config");
            pdfOtherSettingUri = new Uri($"{CMSDomain}/items/PDF_UWP_RemoteConfig");
            this.appType = appType;
            this.loadCardsOnly = loadCardOnly;
            settingList = new List<ISetting>();
        }

        #region Public Method
        public async Task<ISetting> GetSetting(string settingId)
        {
            await LoadSettings();
            return settingList.FirstOrDefault(s => s.SettingName == settingId);
        }

        public async Task<List<WindowsCardSetting>> GetCardSettings()
        {
            await LoadSettings();
            return settingList.Where(s => s is WindowsCardSetting).Select(s => s as WindowsCardSetting).OrderByDescending(w => w.Weight).ToList();
        }
        #endregion

        #region Private Method
        private async Task LoadSettings()
        {
            try
            {
                await loadSettingSS.WaitAsync();
                if (!isLoaded)
                {
                    settingList.Clear();

                    // check internet

                    var allTask = new List<Task>();
                    allTask.Add(GetWindowsCards());
                    if (!loadCardsOnly)
                    {
                        allTask.Add(GetViewerEventBarSetting());
                        allTask.Add(GetOtherSetting());
                    }
                    await Task.WhenAll(allTask);
                    isLoaded = true;
                }
            }
            catch
            {

            }
            finally
            {
                loadSettingSS.Release();
            }
        }

        private async Task GetViewerEventBarSetting()
        {
            var region = GetSystemRegion();
            var appLang = GetAppLanguage();
            var querys = new List<KeyValuePair<string, string>>();
            querys.Add(new KeyValuePair<string, string>("deep[evnet_bar_text_translations][_filter][languages_code][_eq]", appLang));
            querys.Add(new KeyValuePair<string, string>("deep[dialog_text_translations][_filter][languages_code][_eq]", appLang));
            querys.Add(new KeyValuePair<string, string>("deep[dialog_button][dialog_button_translations][_filter][languages_code][_eq]", appLang));
            querys.Add(new KeyValuePair<string, string>("deep[do_not_show_translations][_filter][languages_code][_eq]", appLang));
            querys.Add(new KeyValuePair<string, string>("filter[platform][_eq]", "windows"));
            querys.Add(new KeyValuePair<string, string>("filter[regions][_contains]", region));
            querys.Add(new KeyValuePair<string, string>("fields", "*,do_not_show_translations.*,evnet_bar_text_translations.*,dialog_text_translations.*,dialog_button.*,dialog_button.dialog_button_translations.*"));
            var result = await httpClient.GetRequest(pdfViewerEventBarSettingUri, querys);
            if (result.StatusCode == HttpStatusCode.Ok)
            {
                var jsonString = await result.Content.ReadAsStringAsync();
                var response = JsonTool.DeserializeJSON<ViewerEventBarSettingResponse>(jsonString);
                if (response != null && response.Data != null && response.Data.Length > 0)
                    settingList.Add(response.Data[0]);
            }
        }
        private async Task GetOtherSetting()
        {
            var querys = new List<KeyValuePair<string, string>>();
            querys.Add(new KeyValuePair<string, string>("filter[status][_eq]", "published"));
            querys.Add(new KeyValuePair<string, string>("filter[appTypes][_contains]", appType));
            querys.Add(new KeyValuePair<string, string>("fields", "*"));
            var result = await httpClient.GetRequest(pdfOtherSettingUri, querys);
            if (result.StatusCode == HttpStatusCode.Ok)
            {
                var jsonString = await result.Content.ReadAsStringAsync();
                dynamic dyna = DynamicJsonHelper.ToDynamicJson(jsonString);
                if (dyna == null)
                    return;
                List<dynamic> settings = DynamicJsonHelper.GetArraySafety(dyna.data);
                if (settings == null)
                    return;
                foreach (var setting in settings)
                {
                    string configName = DynamicJsonHelper.GetValueSafety<string>(setting.config_name, null);
                    if (!string.IsNullOrEmpty(configName) && setting.json_data != null)
                        settingList.Add(new JsonSetting(configName, setting.json_data));
                }
            }
        }
        private async Task GetWindowsCards()
        {
            string region = GetSystemRegion();
            string lang = GetAppLanguage();
            var querys = new List<KeyValuePair<string, string>>();
            querys.Add(new KeyValuePair<string, string>("deep[Information][_filter][languages_code][_eq]", lang));
            querys.Add(new KeyValuePair<string, string>("filter[_or][0][include_regions][_eq]", "true"));
            querys.Add(new KeyValuePair<string, string>("filter[_or][0][regions][_contains]", region));
            querys.Add(new KeyValuePair<string, string>("filter[_or][1][include_regions][_eq]", "false"));
            querys.Add(new KeyValuePair<string, string>("filter[_or][1][regions][_ncontains]", region));
            querys.Add(new KeyValuePair<string, string>("filter[appTypes][_contains]", appType));
            querys.Add(new KeyValuePair<string, string>("filter[status][_eq]", "published"));
            querys.Add(new KeyValuePair<string, string>("fields", "*,Information.*"));
            var result = await httpClient.GetRequest(windowsCardsUri, querys);
            if (result.StatusCode == HttpStatusCode.Ok)
            {
                var jsonString = await result.Content.ReadAsStringAsync();
                var response = JsonTool.DeserializeJSON<WindowsCardsResponse>(jsonString);
                if (response != null && response.Data != null && response.Data.Length > 0)
                {
                    foreach (var card in response.Data)
                        settingList.Add(card);
                }
            }
        }

        private string GetSystemRegion()
        {
            var geographyCountryCode = new GeographicRegion().CodeTwoLetter;
            switch (geographyCountryCode)
            {
                case "GB":
                case "US":
                case "TW":
                case "CN":
                case "JP":
                case "ES":
                case "IT":
                case "FR":
                case "DE":
                case "RU":
                case "PT":
                case "KR":
                    return geographyCountryCode;
                default:
                    return "OTHER";
            }
        }

        private string GetAppLanguage()
        {
            try
            {
                var currentLang = Windows.ApplicationModel.Resources.Core.ResourceContext.GetForCurrentView().Languages[0];
                switch (currentLang)
                {
                    case "de-DE":
                    case "de":
                        return "de";
                    case "es-ES":
                    case "es":
                        return "es";
                    case "fr-FR":
                    case "fr":
                        return "fr";
                    case "it-IT":
                    case "it":
                        return "it";
                    case "ja-JP":
                    case "ja":
                        return "ja";
                    case "zh-Hans-CN":
                    case "zh-Hans":
                    case "zh-CN":
                        return "zh-cn";
                    case "zh-Hant-TW":
                    case "zh-Hant":
                    case "zh-TW":
                        return "zh-tw";
                    case "ru-RU":
                    case "ru":
                        return "ru";
                    case "ko-KR":
                    case "ko":
                        return "ko";
                    case "pt-PT":
                    case "pt":
                        return "pt";
                    default:
                        return "en";
                }
            }
            catch
            {
                return "en";
            }
        }
        #endregion
    }
}