using SSPCTester.Logic.Models;

namespace SSPCTester.Logic.Testing;

/// <summary>基础测试模块：24 路依次开 → 读值 → 关 → 校验归零。</summary>
public sealed class BasicTest : ITestModule
{
    public string Name => "基础测试";

    public async Task RunAsync(TestContext ctx, IProgress<TestProgress> progress, CancellationToken ct)
    {
        int n = ctx.Sspc.ChannelCount;
        if (!ctx.Sspc.IsConnected)
            await ctx.Sspc.ConnectAsync(ct).ConfigureAwait(false);
        ctx.Project.BasicResults.Clear();
        for (int ch = 1; ch <= n; ch++)
        {
            ct.ThrowIfCancellationRequested();
            var row = new ChannelResult { Channel = ch, Status = TestStatus.Running };
            ctx.Project.BasicResults.Add(row);
            progress.Report(new TestProgress { ModuleName = Name, Step = ch - 1, TotalSteps = n, Message = $"测试通道 CH{ch}" });
            try
            {
                await ctx.Sspc.TurnOnAsync(ch, ct).ConfigureAwait(false);
                await Task.Delay(BasicTestCriteria.SwitchSettleDelayMs, ct).ConfigureAwait(false);
                var on = await ctx.Sspc.ReadMeasurementAsync(ch, ct).ConfigureAwait(false);
                row.VoltageOn = on.Voltage;
                row.CurrentOn = Math.Abs(on.Current);
                row.DisplayVoltage = row.VoltageOn;
                row.DisplayCurrent = row.CurrentOn;
                bool onOk = BasicTestCriteria.IsOnState(row.VoltageOn, row.CurrentOn);

                await ctx.Sspc.TurnOffAsync(ch, ct).ConfigureAwait(false);
                await Task.Delay(BasicTestCriteria.SwitchSettleDelayMs, ct).ConfigureAwait(false);
                var offResult = await BasicTestCriteria
                    .WaitForStableOffAsync(ctx.Sspc, ch, ct)
                    .ConfigureAwait(false);
                row.VoltageOff = offResult.Measurement.Voltage;
                row.CurrentOff = Math.Abs(offResult.Measurement.Current);
                row.DisplayVoltage = row.VoltageOff;
                row.DisplayCurrent = row.CurrentOff;
                row.Status = onOk && offResult.IsStableOff
                    ? TestStatus.Pass : TestStatus.Fail;
            }
            catch (Exception ex)
            {
                row.Status = TestStatus.Fail;
                try { await ctx.Sspc.TurnOffAsync(ch, CancellationToken.None).ConfigureAwait(false); } catch { }
                progress.Report(new TestProgress
                {
                    ModuleName = Name,
                    Step = ch,
                    TotalSteps = n,
                    StepStatus = row.Status,
                    Message = $"CH{ch} 通讯失败：{ex.Message}"
                });
                continue;
            }
            progress.Report(new TestProgress { ModuleName = Name, Step = ch, TotalSteps = n, StepStatus = row.Status, Message = $"CH{ch} {row.Status}" });
        }
    }
}