using Azure.Storage.Blobs;
using Azure.Storage.Blobs.Models;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TEAMModelOS.SDK.Context.BI;
using TEAMModelOS.SDK.DI;
using TEAMModelOS.SDK.Extension;
using TEAMModelOS.SDK.Models.Cosmos.BI;

namespace TEAMModelOS.SDK.Models.Service.BI
{
    public static class BILogAnalyseService
    {

        /// <summary>
        /// 读取全部的防火墙日志文件并分析保存至
        /// </summary>
        /// <param name="_azureStorage"></param>
        /// <param name="site"></param>
        /// <returns></returns>
        public static async Task<(List<RecCnt> recCnts ,List<string> saveUrls)> GetAllLogAnalyse(AzureStorageFactory _azureStorage,string site = null) 
        {
            var blobClient = _azureStorage.GetBlobContainerClient($"insights-logs-applicationgatewayfirewalllog", name: BIConst.LogChina);
            if ($"{site}".Equals(BIConst.Global))
            {
                blobClient = _azureStorage.GetBlobContainerClient($"insights-logs-applicationgatewayfirewalllog", name: BIConst.Global);
            }

            List<RecCnt> recCnts = new();
            List<string> urls = new();
            //地址:    y={year}/m={month}/d={day}/h={hour}/m=00/PT1H.json
            string logName = "resourceId=/SUBSCRIPTIONS/73B7F9EF-D8B7-4444-9E8D-D80B43BF3CD4/RESOURCEGROUPS/TEAMMODELCHENGDU/PROVIDERS/MICROSOFT.NETWORK/APPLICATIONGATEWAYS/OSFIREWARE";
            await foreach (BlobItem blobItem in blobClient.GetBlobsAsync(BlobTraits.None, BlobStates.None, logName))
            {

                StringBuilder visits = new("[");

                BlobClient tempBlobClient = blobClient.GetBlobClient(blobItem.Name);
                BlobDownloadInfo download = tempBlobClient.Download();
                var content = download.Content;
                string text;
                using (var streamReader = new StreamReader(content))
                {
                    while ((text = streamReader.ReadLine()) != null)
                    {
                        if (streamReader.EndOfStream)
                            visits.Append($"{text.ToString()}");
                        else
                            visits.Append($"{text.ToString()},");
                    }

                    visits.Append("]");
                    streamReader.Close();
                }

                string input = visits.ToString();
                List<AGInfo> aGInfos = input.ToObject<List<AGInfo>>();
                DateTimeOffset dtime = DateTimeOffset.UtcNow;
                string cHour = dtime.ToString("yyyyMMddHH");
                string cDay = dtime.ToString("yyyyMMdd");
                if (aGInfos.Count > 0)
                {
                    cHour = aGInfos.Select(s => DateTimeOffset.Parse(s.time).ToString("yyyyMMddHH")).First();
                    cDay = aGInfos.Select(s => DateTimeOffset.Parse(s.time).ToString("yyyyMMdd")).First();
                }

                RecCnt saveCnts = new();

                List<RecAppGWInfo> recInfo = aGInfos.Select(s => new RecAppGWInfo { hour = cHour, ip = s.properties.clientIp, api = s.properties.requestUri.Split("?").ToList().Count() > 1 ? s.properties.requestUri.Split("?").ToList()[0] : s.properties.requestUri, hostName = s.properties.hostname }).ToList();

                List<RecApiCnt> apiCnt = recInfo.GroupBy(a => a.api).Select(g => new RecApiCnt { api = g.Key, count = g.Count(), hour = cHour, hostName = g.Select(h => h.hostName).Distinct().ToList(), ip = g.Select(i => i.ip).Distinct().ToList() }).ToList();
                saveCnts.apiCnt = apiCnt;

                List<RecIpCnt> ipCnt = recInfo.GroupBy(a => a.ip).Select(g => new RecIpCnt { ip = g.Key, count = g.Count(), hour = cHour, hostName = g.Select(h => h.hostName).Distinct().ToList(), api = g.Select(i => i.api).Distinct().ToList() }).ToList();
                saveCnts.ipCnt = ipCnt;
                recCnts.Add(saveCnts);

                ////保存存至Blob文件
                var url = await _azureStorage.GetBlobContainerClient("0-public").UploadFileByContainer(saveCnts.ToJsonString(), $"visitCnt/{cDay}", $"{cHour}.json");

                urls.Add(url);
            }

            return (recCnts, urls);
        }

        /// <summary>
        /// 通过路径获取日志文件并分析结果
        /// </summary>
        /// <param name="_azureStorage"></param>
        /// <param name="path"></param>
        /// <param name="site"></param>
        /// <returns></returns>
        public static async Task<(List<RecCnt> recCnts, List<string> saveUrls)> GetPathAnalyse(AzureStorageFactory _azureStorage,string path, string site = null)
        {
            var blobClient = _azureStorage.GetBlobContainerClient($"insights-logs-applicationgatewayfirewalllog", name: BIConst.LogChina);
            if ($"{site}".Equals(BIConst.Global))
            {
                blobClient = _azureStorage.GetBlobContainerClient($"insights-logs-applicationgatewayfirewalllog", name: BIConst.LogGlobal);
            }

            List<RecCnt> recCnts = new();
            List<string> urls = new();

            string logName = "resourceId=/SUBSCRIPTIONS/73B7F9EF-D8B7-4444-9E8D-D80B43BF3CD4/RESOURCEGROUPS/TEAMMODELCHENGDU/PROVIDERS/MICROSOFT.NETWORK/APPLICATIONGATEWAYS/OSFIREWARE";
            await foreach (BlobItem blobItem in blobClient.GetBlobsAsync(BlobTraits.None, BlobStates.None, path))
            {
                StringBuilder visits = new("[");
                //BlobClient tempBlobClient = blobClient.GetBlobClient(blobItem.Name);
                //BlobDownloadInfo download = tempBlobClient.Download();
                BlobDownloadInfo download = blobClient.GetBlobClient(blobItem.Name).Download();

                var content = download.Content;
                string text;
                using (var streamReader = new StreamReader(content))
                {
                    while ((text = streamReader.ReadLine()) != null)
                    {
                        if (streamReader.EndOfStream)
                            visits.Append($"{text.ToString()}");
                        else
                            visits.Append($"{text.ToString()},");
                    }

                    visits.Append("]");
                    streamReader.Close();
                }

                string input = visits.ToString();
                List<AGInfo> aGInfos = input.ToObject<List<AGInfo>>();
                DateTimeOffset dtime = DateTimeOffset.UtcNow;
                string cHour = dtime.ToString("yyyyMMddHH");
                string cDay = dtime.ToString("yyyyMMdd");
                if (aGInfos.Count > 0)
                {
                    cHour = aGInfos.Select(s => DateTimeOffset.Parse(s.time).ToString("yyyyMMddHH")).First();
                    cDay = aGInfos.Select(s => DateTimeOffset.Parse(s.time).ToString("yyyyMMdd")).First();
                }

                RecCnt saveCnts = new();

                List<RecAppGWInfo> recInfo = aGInfos.Select(s => new RecAppGWInfo { hour = cHour, ip = s.properties.clientIp, api = s.properties.requestUri.Split("?").ToList().Count() > 1 ? s.properties.requestUri.Split("?").ToList()[0] : s.properties.requestUri, hostName = s.properties.hostname }).ToList();

                List<RecApiCnt> apiCnt = recInfo.GroupBy(a => a.api).Select(g => new RecApiCnt { api = g.Key, count = g.Count(), hour = cHour, hostName = g.Select(h => h.hostName).Distinct().ToList(), ip = g.Select(i => i.ip).Distinct().ToList() }).ToList();
                saveCnts.apiCnt = apiCnt;

                List<RecIpCnt> ipCnt = recInfo.GroupBy(a => a.ip).Select(g => new RecIpCnt { ip = g.Key, count = g.Count(), hour = cHour, hostName = g.Select(h => h.hostName).Distinct().ToList(), api = g.Select(i => i.api).Distinct().ToList() }).ToList();
                saveCnts.ipCnt = ipCnt;
                recCnts.Add(saveCnts);

                ////保存存至Blob文件
                var url = await _azureStorage.GetBlobContainerClient("0-public").UploadFileByContainer(saveCnts.ToJsonString(), $"visitCnt/{cDay}", $"{cHour}.json");

                urls.Add(url);
            }

            return (recCnts, urls);
        }
    }
}