using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using SSPCTester.Logic.Models;
using SSPCTester.Logic.Report;

namespace SSPCTester.Tests;

public sealed class WordReportGeneratorTests
{
    [Fact]
    public void WordReport_GeneratesOpenXmlDocumentWithSimSunTextAndImage()
    {
        string output = Path.Combine(Path.GetTempPath(), $"SSPCTester-report-{Guid.NewGuid():N}.docx");
        try
        {
            var project = BuildProject();
            var generator = new WordReportGenerator
            {
                CurveImages = { [1] = new CurveReportImages(MinimalPng, MinimalPng) }
            };

            generator.Generate(project, output);

            Assert.True(File.Exists(output));
            Assert.True(new FileInfo(output).Length > 4_000);

            using var document = WordprocessingDocument.Open(output, false);
            string text = document.MainDocumentPart!.Document.Body!.InnerText;
            Assert.Contains("动态参数检测报告", text);
            Assert.Contains("ProjectA", text);
            Assert.Contains("基础测试", text);
            Assert.Contains("功率损耗", text);

            var fontNames = document.MainDocumentPart.Document.Descendants<RunFonts>()
                .SelectMany(x => new[] { x.Ascii?.Value, x.HighAnsi?.Value, x.EastAsia?.Value })
                .Where(x => !string.IsNullOrWhiteSpace(x))
                .ToArray();
            Assert.Contains("SimSun", fontNames);
            Assert.Equal(2, document.MainDocumentPart.ImageParts.Count());
        }
        finally
        {
            if (File.Exists(output)) File.Delete(output);
        }
    }

    [Fact]
    public void WordReport_GeneratesWithoutCurveImages()
    {
        string output = Path.Combine(Path.GetTempPath(), $"SSPCTester-report-{Guid.NewGuid():N}.docx");
        try
        {
            new WordReportGenerator().Generate(BuildProject(), output);

            Assert.True(File.Exists(output));
            using var document = WordprocessingDocument.Open(output, false);
            Assert.Contains("开启与关断曲线", document.MainDocumentPart!.Document.Body!.InnerText);
        }
        finally
        {
            if (File.Exists(output)) File.Delete(output);
        }
    }

    private static Project BuildProject()
    {
        var project = new Project
        {
            Name = "ProjectA",
            CreatedAt = new DateTime(2026, 6, 28, 9, 0, 0),
            Dut = new DutInfo
            {
                ProductName = "SSPC",
                Model = "M24",
                SerialNumber = "SN001",
                Manufacturer = "Factory"
            },
            Site = new TestSiteInfo
            {
                Tester = "Tester",
                TestDate = new DateTime(2026, 6, 28),
                Remark = "OK"
            }
        };
        project.BasicResults.Add(new ChannelResult
        {
            Channel = 1,
            VoltageOn = 28.0,
            CurrentOn = 1.0,
            VoltageOff = 0.01,
            Status = TestStatus.Pass
        });
        project.CurveResults.Add(new CurveResultRow
        {
            Channel = 1,
            OnTimeMs = 1.2,
            RiseTimeMs = 0.9,
            OffTimeMs = 1.1,
            FallTimeMs = 0.8,
            Status = TestStatus.Pass
        });
        project.PowerResults.Add(new PowerLossRow
        {
            Channel = 1,
            Vin = 28.0,
            Iin = 1.0,
            Vout = 27.5,
            Iout = 1.0,
            MeasuredPowerOut = 27.5,
            Status = TestStatus.Pass
        });
        project.ProtectResults.Add(new ProtectRow
        {
            ProtectType = "短路",
            Trigger = "输出短路",
            TripTimeMs = 2.1,
            Status = TestStatus.Pass
        });
        return project;
    }

    private static readonly byte[] MinimalPng =
    {
        0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A,
        0x00, 0x00, 0x00, 0x0D, 0x49, 0x48, 0x44, 0x52,
        0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
        0x08, 0x02, 0x00, 0x00, 0x00, 0x90, 0x77, 0x53,
        0xDE, 0x00, 0x00, 0x00, 0x0C, 0x49, 0x44, 0x41,
        0x54, 0x08, 0xD7, 0x63, 0xF8, 0xFF, 0xFF, 0x3F,
        0x00, 0x05, 0xFE, 0x02, 0xFE, 0xDC, 0xCC, 0x59,
        0xE7, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4E,
        0x44, 0xAE, 0x42, 0x60, 0x82
    };
}