using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.AspNetCore.Http;
using Core.Main;
using Core.Helper;
using Core.Main.DataObjects;
using Core.Main.DataObjects.PTMagicData;
using System.Globalization;
using System.Text;

namespace Monitor.Pages
{
  public class DashboardBottomModel : _Internal.BasePageModelSecureAJAX
  {
    public ProfitTrailerData PTData = null;
    public StatsData StatsData { get; set; }
    public PropertiesData PropertiesData { get; set; }
    public SummaryData SummaryData { get; set; }
    public List<DailyStatsData> DailyStats { get; set; } = new List<DailyStatsData>();
    public List<DailyPNLData> DailyPNL { get; set; } = new List<DailyPNLData>();
    public List<MarketTrend> MarketTrends { get; set; } = new List<MarketTrend>();
    public string TrendChartDataJSON = "";
    public string ProfitChartDataJSON = "";
    public string LastGlobalSetting = "Default";
    public DateTimeOffset DateTimeNow = Constants.confMinDate;
    public string AssetDistributionData = "";
    public double totalCurrentValue = 0;
    public void OnGet()
    {
      // Initialize Config
      base.Init();

      BindData();
      
      BuildAssetDistributionData();
    }

    private void BindData()
    {
      PTData = this.PtDataObject;
      StatsData = this.PTData.Stats;
      PropertiesData = this.PTData.Properties;
      SummaryData = this.PTData.Summary;
      List<DailyStatsData> dailyStatsData = this.PTData.DailyStats;
      List<DailyPNLData> dailyPNLData = this.PTData.DailyPNL;

      // Cleanup temp files
      FileHelper.CleanupFilesMinutes(PTMagicMonitorBasePath + "wwwroot" + System.IO.Path.DirectorySeparatorChar + "assets" + System.IO.Path.DirectorySeparatorChar + "tmp" + System.IO.Path.DirectorySeparatorChar, 5);

      // Convert local offset time to UTC
      TimeSpan offsetTimeSpan = TimeSpan.Parse(PTMagicConfiguration.GeneralSettings.Application.TimezoneOffset.Replace("+", ""));
      DateTimeNow = DateTimeOffset.UtcNow.ToOffset(offsetTimeSpan);

      // Get last and current active setting
      if (!String.IsNullOrEmpty(HttpContext.Session.GetString("LastGlobalSetting")))
      {
        LastGlobalSetting = HttpContext.Session.GetString("LastGlobalSetting");
      }
      HttpContext.Session.SetString("LastGlobalSetting", Summary.CurrentGlobalSetting.SettingName);

      // Get market trends
      MarketTrends = PTMagicConfiguration.AnalyzerSettings.MarketAnalyzer.MarketTrends.OrderBy(mt => mt.TrendMinutes).ThenByDescending(mt => mt.Platform).ToList();

      BuildMarketTrendChartData();
      BuildProfitChartData();
    }
    private void BuildMarketTrendChartData()
{
    StringBuilder trendChartDataJSON = new StringBuilder();
    if (MarketTrends.Count > 0)
    {
        trendChartDataJSON.Append("[");
        int mtIndex = 0;
        foreach (MarketTrend mt in MarketTrends)
        {
            if (mt.DisplayGraph)
            {
                string lineColor = "";
                if (mtIndex < Constants.ChartLineColors.Length)
                {
                    lineColor = Constants.ChartLineColors[mtIndex];
                }
                else
                {
                    lineColor = Constants.ChartLineColors[mtIndex - 20];
                }

                if (Summary.MarketTrendChanges.ContainsKey(mt.Name))
                {
                    List<MarketTrendChange> marketTrendChangeSummaries = Summary.MarketTrendChanges[mt.Name];

                    if (marketTrendChangeSummaries.Count > 0)
                    {
                        if (!trendChartDataJSON.ToString().Equals("[")) trendChartDataJSON.Append(",");

                        trendChartDataJSON.Append("{");
                        trendChartDataJSON.Append("key: '" + SystemHelper.SplitCamelCase(mt.Name) + "',");
                        trendChartDataJSON.Append("color: '" + lineColor + "',");
                        trendChartDataJSON.Append("values: [");

                        // Get trend ticks for chart
                        DateTime currentDateTime = new DateTime(DateTime.UtcNow.Year, DateTime.UtcNow.Month, DateTime.UtcNow.Day, DateTime.UtcNow.Hour, 0, 0);
                        DateTime startDateTime = currentDateTime.AddHours(-PTMagicConfiguration.GeneralSettings.Monitor.GraphMaxTimeframeHours);
                        DateTime endDateTime = currentDateTime;
                        int trendChartTicks = 0;
                        for (DateTime tickTime = startDateTime; tickTime <= endDateTime; tickTime = tickTime.AddMinutes(PTMagicConfiguration.GeneralSettings.Monitor.GraphIntervalMinutes))
                        {
                            List<MarketTrendChange> tickRange = marketTrendChangeSummaries.FindAll(m => m.TrendDateTime >= tickTime).OrderBy(m => m.TrendDateTime).ToList();
                            if (tickRange.Count > 0)
                            {
                                MarketTrendChange mtc = tickRange.First();
                                if (tickTime != startDateTime) trendChartDataJSON.Append(",\n");
                                if (Double.IsInfinity(mtc.TrendChange)) mtc.TrendChange = 0;

                                trendChartDataJSON.Append("{ x: new Date('" + tickTime.ToString("yyyy-MM-ddTHH:mm:ss").Replace(".", ":") + "'), y: " + mtc.TrendChange.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "}");
                                trendChartTicks++;
                            }
                        }
                        // Add most recent tick
                        List<MarketTrendChange> latestTickRange = marketTrendChangeSummaries.OrderByDescending(m => m.TrendDateTime).ToList();
                        if (latestTickRange.Count > 0)
                        {
                            MarketTrendChange mtc = latestTickRange.First();
                            if (trendChartTicks > 0) trendChartDataJSON.Append(",\n");
                            if (Double.IsInfinity(mtc.TrendChange)) mtc.TrendChange = 0;
                            trendChartDataJSON.Append("{ x: new Date('" + mtc.TrendDateTime.ToString("yyyy-MM-ddTHH:mm:ss").Replace(".", ":") + "'), y: " + mtc.TrendChange.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "}");
                        }
                        trendChartDataJSON.Append("]");
                        trendChartDataJSON.Append("}");
                        mtIndex++;
                    }
                }
            }
        }
        trendChartDataJSON.Append("]");
    }
    TrendChartDataJSON = trendChartDataJSON.ToString();
}

    private void BuildProfitChartData()
    {
        StringBuilder profitPerDayJSON = new StringBuilder();

        if (PTData.DailyStats.Count > 0)
        {
            DateTime endDate = DateTime.UtcNow.Date;
            DateTime startDate = endDate.AddDays(-30);

            for (DateTime date = startDate; date <= endDate; date = date.AddDays(1))
            {
                if (profitPerDayJSON.Length > 0)
                {
                    profitPerDayJSON.Append(",\n");
                }
                DailyStatsData dailyStats = PTData.DailyStats.Find(ds => DateTime.ParseExact(ds.Date, "d-M-yyyy", CultureInfo.InvariantCulture) == date);
                double profitFiat = dailyStats != null ? Math.Round(dailyStats.TotalProfitCurrency,2) : 0;
                profitPerDayJSON.Append("{x: new Date('" + date.ToString("yyyy-MM-dd") + "'), y: " + profitFiat.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "}");
            }
            ProfitChartDataJSON = "[{key: 'Profit in " + PTData.Properties.Currency + "',color: '" + Constants.ChartLineColors[1] + "',values: [" + profitPerDayJSON.ToString() + "]}]";
        }
    }

    private void BuildAssetDistributionData()
    {
      // the per PT-Eelroy, the PT API doesn't provide these values when using leverage, so they are calculated here to cover either case.
      double PairsBalance = 0.0;
      double DCABalance = 0.0;
      double PendingBalance = 0.0;
      double AvailableBalance = PTData.GetCurrentBalance();
      bool isSellStrategyTrue = false;
      bool isTrailingSellActive = false;

        foreach (Core.Main.DataObjects.PTMagicData.DCALogData dcaLogEntry in PTData.DCALog)
        {
            string sellStrategyText = Core.ProfitTrailer.StrategyHelper.GetStrategyText(Summary, dcaLogEntry.SellStrategies, dcaLogEntry.SellStrategy, isSellStrategyTrue, isTrailingSellActive);

        // Aggregate totals
        double leverage = dcaLogEntry.Leverage;
        if (leverage == 0)
        {
          leverage = 1;
        }
        if (sellStrategyText.Contains("PENDING"))
        {
          PendingBalance = PendingBalance + ((dcaLogEntry.Amount * dcaLogEntry.CurrentPrice) / leverage);
        }
        else if (dcaLogEntry.BuyStrategies.Count > 0)
        {
          DCABalance = DCABalance + ((dcaLogEntry.Amount * dcaLogEntry.CurrentPrice) / leverage);
        }
        else
        {
          PairsBalance = PairsBalance + ((dcaLogEntry.Amount * dcaLogEntry.CurrentPrice) / leverage);
        }
      }
      totalCurrentValue = PendingBalance + DCABalance + PairsBalance + AvailableBalance;
      AssetDistributionData = "[";
      AssetDistributionData += "{label: 'Pairs',color: '#82E0AA',value: '" + PairsBalance.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "'},";
      AssetDistributionData += "{label: 'DCA',color: '#D98880',value: '" + DCABalance.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "'},";
      AssetDistributionData += "{label: 'Pending',color: '#F5B041',value: '" + PendingBalance.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "'},";
      AssetDistributionData += "{label: 'Balance',color: '#85C1E9',value: '" + AvailableBalance.ToString("0.00", new System.Globalization.CultureInfo("en-US")) + "'}]";
    }
  }
}