using SSPCTester.Devices.Interfaces;
using SSPCTester.Logic.Models;

namespace SSPCTester.Logic.Testing;

/// <summary>Power loss test using UDP5080 input measurements and SSPC output measurements.</summary>
public sealed class PowerTest : ITestModule
{
    private readonly IPowerSupply _power;

    public PowerTest(IPowerSupply power)
    {
        _power = power;
    }

    public string Name => "功率损耗";

    public int SamplesPerChannel { get; set; } = 5;
    public int IntervalMs { get; set; } = 100;

    public async Task RunAsync(TestContext ctx, IProgress<TestProgress> progress, CancellationToken ct)
    {
        if (!_power.IsConnected) await _power.ConnectAsync(ct).ConfigureAwait(false);
        if (!ctx.Load.IsConnected) await ctx.Load.ConnectAsync(ct).ConfigureAwait(false);
        int n = ctx.Sspc.ChannelCount;
        ctx.Project.PowerResults.Clear();

        for (int ch = 1; ch <= n; ch++)
        {
            ct.ThrowIfCancellationRequested();
            var row = new PowerLossRow { Channel = ch, Status = TestStatus.Running };
            ctx.Project.PowerResults.Add(row);
            progress.Report(new TestProgress { ModuleName = Name, Step = ch - 1, TotalSteps = n, Message = $"采集 CH{ch} 输入/输出两端数据" });

            try
            {
                double sumVin = 0, sumIin = 0, sumVout = 0, sumIout = 0, sumPout = 0;
                for (int s = 0; s < SamplesPerChannel; s++)
                {
                    var input = await _power.ReadAsync(ct).ConfigureAwait(false);
                    var output = await ctx.Load.ReadPowerAsync(ct).ConfigureAwait(false);

                    double vin = input.volts;
                    double iin = Math.Abs(input.amps);
                    double vout = output.Volts;
                    double iout = Math.Abs(output.Amps);
                    double pout = output.Watts;
                    if (!double.IsFinite(vin) || !double.IsFinite(iin) || !double.IsFinite(vout) || !double.IsFinite(iout) || !double.IsFinite(pout))
                        throw new InvalidOperationException("功率损耗采样无效：请检查 UDP5080-100 电源测量与 Modbus 连接。");

                    sumVin += vin;
                    sumIin += iin;
                    sumVout += vout;
                    sumIout += iout;
                    sumPout += pout;
                    await Task.Delay(IntervalMs, ct).ConfigureAwait(false);
                }

                row.Vin = sumVin / SamplesPerChannel;
                row.Iin = sumIin / SamplesPerChannel;
                row.Vout = sumVout / SamplesPerChannel;
                row.Iout = sumIout / SamplesPerChannel;
                row.MeasuredPowerOut = sumPout / SamplesPerChannel;
                row.Status = TestStatus.Measured;
            }
            catch
            {
                row.Status = TestStatus.Fail;
                throw;
            }

            progress.Report(new TestProgress { ModuleName = Name, Step = ch, TotalSteps = n, StepStatus = row.Status, Message = $"CH{ch} 损耗={row.PowerLossW:F2}W 效率={row.EfficiencyPct:F1}%" });
        }
    }
}