using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Text.Json;
using System.Threading.Tasks;
using Azure.Cosmos;
using Microsoft.Azure.Functions.Worker;
using Microsoft.Azure.Functions.Worker.Http;
using StackExchange.Redis;
using TEAMModelOS.SDK.DI;
using TEAMModelOS.SDK.Extension;
using TEAMModelOS.SDK.Models.Cosmos.BI;
using TEAMModelOS.SDK.Models.Service.BIStatsWay;

namespace TEAMModelOS.FunctionV4.HttpTrigger
{
    public class BIHttpTrigger
    {
        private readonly AzureCosmosFactory _azureCosmos;
        private readonly DingDing _dingDing;
        private readonly AzureStorageFactory _azureStorage;
        private readonly AzureRedisFactory _azureRedis;
        private readonly HttpClient _httpClient;

        public BIHttpTrigger(AzureCosmosFactory azureCosmos, DingDing dingDing, AzureStorageFactory azureStorage, AzureRedisFactory azureRedis, HttpClient httpClient)
        {
            _azureCosmos = azureCosmos;
            _dingDing = dingDing;
            _azureStorage = azureStorage;
            _azureRedis = azureRedis;
            _httpClient = httpClient;
        }

        /// <summary>
        /// 统计学校的信息
        /// </summary>
        /// <param name="req"></param>
        /// <returns></returns>
        [Function("stats-sc-info")]
        public async Task<HttpResponseData> StatsSchoolInfo([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequestData req)
        {
            var response = req.CreateResponse(HttpStatusCode.OK);

            try
            {
                string scId = null;
                var cosmosClient = _azureCosmos.GetCosmosClient();
                string data = await new StreamReader(req.Body).ReadToEndAsync();
                var json = JsonDocument.Parse(data).RootElement;
                if (json.TryGetProperty("schoolId", out JsonElement _schoolId))
                {
                    scId = $"{_schoolId}";
                }
                if (string.IsNullOrEmpty(scId))
                {
                    return response;
                }

                bool locKey = await _azureRedis.GetRedisClient(8).KeyExistsAsync($"Train:Statistics:Lock:{scId}");
                if (!locKey)
                {
                    await _azureRedis.GetRedisClient(8).SetAddAsync($"Train:Statistics:Lock:{scId}", new RedisValue(scId));
                    DateTime minutes = DateTime.UtcNow.AddMinutes(15);   //15分钟
                    await _azureRedis.GetRedisClient(8).KeyExpireAsync($"Train:Statistics:Lock:{scId}", minutes);

                    bool isExist = true;
                    StatsInfo statsInfo = new();
                    var scDataStats = await cosmosClient.GetContainer(Constant.TEAMModelOS, "School").ReadItemStreamAsync($"{scId}", new PartitionKey("Stats"));
                    if (scDataStats.Status == 200)
                    {
                        using var fileJson = await JsonDocument.ParseAsync(scDataStats.ContentStream);
                        statsInfo = fileJson.ToObject<StatsInfo>();
                    }
                    else                    
                        isExist = false;

                    statsInfo = await SchoolStatsWay.upSingleSc(cosmosClient, scId);
                    statsInfo.upTime = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
                    if (isExist)
                        statsInfo = await cosmosClient.GetContainer(Constant.TEAMModelOS, "School").ReplaceItemAsync<StatsInfo>(statsInfo, statsInfo.id, new PartitionKey("Stats"));
                    else
                        statsInfo = await cosmosClient.GetContainer(Constant.TEAMModelOS, "School").CreateItemAsync<StatsInfo>(statsInfo, new PartitionKey("Stats"));
                }

                return response;
            }
            catch (Exception)
            {

                throw;
            }
        }
    }
}