namespace Gpulse.WCT.DataAnalyzer.Tests;

/// <summary>
/// 构造 CLI 测试用的日志 fixture 文件。文件名符合 FileNameParser 约定的
/// `车厂-车型-TX面板类型-TX硬件-TX软件-RX类型-异物类型-测试目的-年月日测试次数` 格式。
/// </summary>
public static class TestFixtures
{
    /// <summary>
    /// 新格式文件名示例：
    /// 车厂-车型-TX面板类型-TX硬件-TX软件-RX类型-异物类型-测试目的-年月日测试次数
    /// </summary>
    public const string PlossFileName = "奇瑞-E5-singleMold-A00-V001-iPhone15-无-ploss_test-2026071001.dat";
    public const string QfodFileName = "奇瑞-E5-singleMold-A00-V001-iPhone15-无-qfod_test-2026071001.dat";

    /// <summary>
    /// 两行 Ploss 记录（header + FOD 16 字段）。
    /// 默认值让恒等式成立（Field5 - Field4 - PowLoss - ploss == DeltaP）且余量 > 2000。
    /// Field10 为功率段，默认 350。
    /// </summary>
    /// <param name="Field1AsHex">
    /// 当不为 null 时，覆写 Field1，按十六进制字面量写入日志（如 "0C" = 十进制 12），
    /// 用于验证解析器对 Field1 十六进制格式的支持。
    /// </param>
    public sealed record PlossTwoLineRow(
        int PowLoss = 2200,
        int DeltaP = 2500,
        int Field1 = 1,
        string? Field1AsHex = null,
        int Field2 = 0,
        int Field3 = 0,
        int Field4 = 800,   // RX power
        int Field5 = 6000,  // TX power
        int Field6 = 0,
        int Field7 = 0,
        int Field8 = 0,
        int Field9 = 500,   // ploss
        int Field10 = 350,  // threshold/power segment (350/500/750/1000/1250/1500/1750/2000/2250)
        int Field11 = 0,
        int Field12 = 0,    // FOD 标志
        int Field13 = 0,
        int Field14 = 0,
        int Field15 = 0,
        int Field16 = 0);

    /// <summary>写两行格式 Ploss 日志文件。</summary>
    public static string WritePlossLog(string dir, string fileName, params PlossTwoLineRow[] rows)
    {
        var path = Path.Combine(dir, fileName);
        var lines = new List<string>(rows.Length * 2);
        foreach (var r in rows)
        {
            lines.Add($"pow_loss = {r.PowLoss}, delta_p = {r.DeltaP}");
            var field1 = r.Field1AsHex ?? r.Field1.ToString();
            lines.Add(
                $"FOD-> {field1} {r.Field2} {r.Field3} {r.Field4} {r.Field5} {r.Field6} " +
                $"{r.Field7} {r.Field8} {r.Field9} {r.Field10} {r.Field11} {r.Field12} " +
                $"{r.Field13} {r.Field14} {r.Field15} {r.Field16}");
        }
        File.WriteAllLines(path, lines);
        return path;
    }

    /// <summary>写 Qfod 日志文件，每行 DeltaQ 一个。</summary>
    public static string WriteQfodLog(string dir, string fileName, params int[] deltaQs)
    {
        var path = Path.Combine(dir, fileName);
        var lines = deltaQs
            .Select((d, i) =>
            {
                var charger = i % 2;
                var coil = i % 3;
                var currentQ = 40 + d;
                return $"{charger}#:Q {coil}->{d} {currentQ}.0 20.0 0 0";
            })
            .ToArray();
        File.WriteAllLines(path, lines);
        return path;
    }
}