namespace Gpulse.WCT.DataAnalyzer.Tests.Commands;

[TestFixture]
public class AnalyzeCommandTests : CommandTestBase
{
    [Test]
    public async Task Analyze_NoType_ReturnsValidationError()
    {
        var (code, stdout, stderr) = await Analyze().RunCaptureAsync();

        Assert.Multiple(() =>
        {
            Assert.That(code, Is.EqualTo(1));
            Assert.That(stdout + stderr, Does.Contain("--type"));
        });
    }

    [Test]
    public async Task Analyze_UnknownType_PrintsMessage()
    {
        var (code, stdout, _) = await Analyze().RunCaptureAsync("--type", "foo");

        Assert.Multiple(() =>
        {
            Assert.That(code, Is.EqualTo(0));
            Assert.That(stdout, Does.Contain("Unknown type: foo. Use 'ploss' or 'qfod'."));
        });
    }

    [Test]
    public async Task Analyze_Ploss_MissingFile_PrintsPrompt()
    {
        var (_, stdout, _) = await Analyze().RunCaptureAsync("--type", "ploss");

        Assert.That(stdout, Does.Contain("Please specify --file for Ploss analysis"));
    }

    [Test]
    public async Task Analyze_Ploss_ValidTwoLineFile_ReportsSummary()
    {
        var dir = NewDir();
        var file = TestFixtures.WritePlossLog(dir, TestFixtures.PlossFileName,
            // 正常两行：margin = 3000-500 = 2500 > 2000，恒等式成立
            new TestFixtures.PlossTwoLineRow(),
            // FOD 两行：ploss=2500 threshold=3000 margin=500，恒等式成立，delta_p'=2500+2001+2500-3000=4001
            new TestFixtures.PlossTwoLineRow(Field5: 8000, Field9: 2500, Field10: 3000, Field12: 1));

        var (code, stdout, _) = await Analyze().RunCaptureAsync("--type", "ploss", "--file", file);

        Assert.Multiple(() =>
        {
            Assert.That(code, Is.EqualTo(0));
            Assert.That(stdout, Does.Contain("=== Ploss Analysis:"));
            Assert.That(stdout, Does.Contain("Total: 2 (TwoLine: 2, Legacy: 0), FOD: 1, Errors: 0"));
            Assert.That(stdout, Does.Contain("Normal margin>2000: 1/1 (100.0%)"));
            Assert.That(stdout, Does.Contain("FOD margin>2000: 0/1 (0.0%)"));
            Assert.That(stdout, Does.Contain("Identity (delta_p = Tx - Rx - pow_loss - ploss): 2/2"));
            Assert.That(stdout, Does.Contain("delta_p'=4001"));
            Assert.That(stdout, Does.Contain("rewrite: pow_loss = 2200, delta_p = 4001"));
        });
    }

    [Test]
    public async Task Analyze_Ploss_LegacyFile_CountsLegacyRows()
    {
        var dir = NewDir();
        var file = TestFixtures.WriteLegacyPlossLog(
            dir, "singleMold-v1.0-hex2_1-iPhone15-ploss_legacy-20260710-1.log",
            (500, 3000, 0), (2500, 3000, 1));

        var (code, stdout, _) = await Analyze().RunCaptureAsync("--type", "ploss", "--file", file);

        Assert.Multiple(() =>
        {
            Assert.That(code, Is.EqualTo(0));
            Assert.That(stdout, Does.Contain("Total: 2 (TwoLine: 0, Legacy: 2), FOD: 1, Errors: 0"));
            Assert.That(stdout, Does.Contain("Normal margin>2000: 1/1 (100.0%)"));
            Assert.That(stdout, Does.Contain("FOD margin>2000: 0/1 (0.0%)"));
        });
    }

    [Test]
    public async Task Analyze_Qfod_MissingArgs_PrintsPrompt()
    {
        var (_, stdout, _) = await Analyze().RunCaptureAsync("--type", "qfod");

        Assert.That(stdout, Does.Contain("Please specify --pure and --foreign for Qfod calibration"));
    }

    [Test]
    public async Task Analyze_Qfod_ValidFiles_ReportsThreshold()
    {
        var dir = NewDir();
        var pure = TestFixtures.WriteQfodLog(
            dir, "singleMold-v1.0-hex2_1-iPhone15-qfod_pure-20260710-1.log", 20, 25, 21);
        var foreign = TestFixtures.WriteQfodLog(
            dir, "singleMold-v1.0-hex2_1-iPhone15-qfod_foreign-20260710-1.log", 42, 40, 45);

        var (code, stdout, _) = await Analyze().RunCaptureAsync("--type", "qfod", "--pure", pure, "--foreign", foreign);

        Assert.Multiple(() =>
        {
            Assert.That(code, Is.EqualTo(0));
            Assert.That(stdout, Does.Contain("=== Qfod Calibration ==="));
            Assert.That(stdout, Does.Contain("Pure phone"));
            Assert.That(stdout, Does.Contain("Foreign object"));
            Assert.That(stdout, Does.Contain("count=3 min=20 max=25 avg=22.0"));
            Assert.That(stdout, Does.Contain("count=3 min=40 max=45 avg=42.3"));
            Assert.That(stdout, Does.Contain("Threshold = (pureMax + foreignMin) / 2 = (25 + 40) / 2 = 32"));
            Assert.That(stdout, Does.Contain("pureMax - threshold = -7"));
            Assert.That(stdout, Does.Contain("foreignMin - threshold = 8"));
        });
    }

    [Test]
    public async Task Analyze_Qfod_MissingFile_ReportsFailure()
    {
        var dir = NewDir();
        var foreign = TestFixtures.WriteQfodLog(
            dir, "singleMold-v1.0-hex2_1-iPhone15-qfod_foreign-20260710-1.log", 42, 40);

        var (_, stdout, _) = await Analyze().RunCaptureAsync(
            "--type", "qfod",
            "--pure", Path.Combine(dir, "nope.log"),
            "--foreign", foreign);

        Assert.That(stdout, Does.Contain("FAILED"));
    }
}