using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Extensions.DependencyInjection;
using PolyTrader.Core.Analytics;
using PolyTrader.Web.Endpoints;
using PolyTraderSharp;
using PolyTraderSharp.Models;
using PolyTraderSharp.Services;
using Xunit;

namespace PolyTrader.Tests.WebUi
{
    public class DashboardAndJobsEndpointsTests
    {
        [Fact]
        public void JobStatusRow_ToggleIsEnabled_WorksProperly()
        {
            var job = new JobStatusRow
            {
                JobName = "TestJob",
                IsEnabled = true
            };

            job.IsEnabled = !job.IsEnabled;
            Assert.False(job.IsEnabled);

            job.IsEnabled = !job.IsEnabled;
            Assert.True(job.IsEnabled);
        }

        [Fact]
        public void AccountOverviewRow_CalculatesPerformanceCorrectly()
        {
            var trades = new List<TradeRecord>
            {
                new TradeRecord
                {
                    AccountId = 1,
                    ModuleName = "CopyTrading",
                    MarketQuestion = "Test Market 1",
                    RealizedPnl = 50m,
                    ClosedAt = DateTime.UtcNow.AddDays(-1)
                },
                new TradeRecord
                {
                    AccountId = 1,
                    ModuleName = "CopyTrading",
                    MarketQuestion = "Test Market 2",
                    RealizedPnl = -20m,
                    ClosedAt = DateTime.UtcNow.AddDays(-2)
                },
                new TradeRecord
                {
                    AccountId = 1,
                    ModuleName = "ResolutionFarming",
                    MarketQuestion = "Old Market",
                    RealizedPnl = 100m,
                    ClosedAt = DateTime.UtcNow.AddDays(-10)
                }
            };

            var since3d = DateTime.UtcNow.AddDays(-3);
            var (pnl3d, win3d, count3d) = TradeAnalytics.WindowSummary(trades.Where(t => t.ClosedAt >= since3d));

            Assert.Equal(30m, pnl3d);
            Assert.Equal(50m, win3d); // 1 out of 2 trades won
            Assert.Equal(2, count3d);

            decimal overallPnl = trades.Sum(t => t.RealizedPnl);
            Assert.Equal(130m, overallPnl);

            string modules = trades
                .Select(t => t.ModuleName)
                .Where(m => !string.IsNullOrEmpty(m))
                .Distinct().OrderBy(m => m)
                .Aggregate((a, b) => a + ", " + b);

            Assert.Equal("CopyTrading, ResolutionFarming", modules);
        }

        [Fact]
        public void TradeAnalytics_ComputeKpis_HandlesModuleSet()
        {
            var trades = new List<TradeRecord>
            {
                new TradeRecord { ModuleName = "CopyTrading", RealizedPnl = 25m, ClosedAt = DateTime.UtcNow.AddDays(-2) },
                new TradeRecord { ModuleName = "CopyTrading", RealizedPnl = -10m, ClosedAt = DateTime.UtcNow.AddDays(-1) },
                new TradeRecord { ModuleName = "CopyTrading", RealizedPnl = 15m, ClosedAt = DateTime.UtcNow.Date }
            };

            var kpis = TradeAnalytics.ComputeKpis(trades);
            Assert.Equal(3, kpis.TradeCount);
            Assert.Equal(30m, kpis.NetPnl);
            Assert.True(kpis.WinRatePct > 60m);
            Assert.Equal(40m / 10m, kpis.ProfitFactor); // gross win 40 / gross loss 10 = 4.0
        }
    }
}