namespace OcrDaemon;

using System.Text.Json.Serialization;

class Request
{
    [JsonPropertyName("cmd")]
    public string? Cmd { get; set; }

    [JsonPropertyName("region")]
    public RegionRect? Region { get; set; }

    [JsonPropertyName("path")]
    public string? Path { get; set; }

    [JsonPropertyName("cols")]
    public int Cols { get; set; }

    [JsonPropertyName("rows")]
    public int Rows { get; set; }

    [JsonPropertyName("threshold")]
    public int Threshold { get; set; }

    [JsonPropertyName("minCellSize")]
    public int MinCellSize { get; set; }

    [JsonPropertyName("maxCellSize")]
    public int MaxCellSize { get; set; }

    [JsonPropertyName("file")]
    public string? File { get; set; }

    [JsonPropertyName("debug")]
    public bool Debug { get; set; }

    [JsonPropertyName("targetRow")]
    public int TargetRow { get; set; } = -1;

    [JsonPropertyName("targetCol")]
    public int TargetCol { get; set; } = -1;

    [JsonPropertyName("engine")]
    public string? Engine { get; set; }

    [JsonPropertyName("preprocess")]
    public string? Preprocess { get; set; }

    [JsonPropertyName("params")]
    public DiffOcrParams? Params { get; set; }
}

class RegionRect
{
    [JsonPropertyName("x")]
    public int X { get; set; }

    [JsonPropertyName("y")]
    public int Y { get; set; }

    [JsonPropertyName("width")]
    public int Width { get; set; }

    [JsonPropertyName("height")]
    public int Height { get; set; }
}

class ReadyResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("ready")]
    public bool Ready => true;
}

class OkResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;
}

class ErrorResponse(string message)
{
    [JsonPropertyName("ok")]
    public bool Ok => false;

    [JsonPropertyName("error")]
    public string Error => message;
}

class OcrResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("text")]
    public string Text { get; set; } = "";

    [JsonPropertyName("lines")]
    public List<OcrLineResult> Lines { get; set; } = [];
}

class DiffOcrResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("text")]
    public string Text { get; set; } = "";

    [JsonPropertyName("lines")]
    public List<OcrLineResult> Lines { get; set; } = [];

    [JsonPropertyName("region")]
    public RegionRect? Region { get; set; }
}

class OcrLineResult
{
    [JsonPropertyName("text")]
    public string Text { get; set; } = "";

    [JsonPropertyName("words")]
    public List<OcrWordResult> Words { get; set; } = [];
}

class OcrWordResult
{
    [JsonPropertyName("text")]
    public string Text { get; set; } = "";

    [JsonPropertyName("x")]
    public int X { get; set; }

    [JsonPropertyName("y")]
    public int Y { get; set; }

    [JsonPropertyName("width")]
    public int Width { get; set; }

    [JsonPropertyName("height")]
    public int Height { get; set; }
}

class CaptureResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("image")]
    public string Image { get; set; } = "";
}

class GridResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("cells")]
    public List<List<bool>> Cells { get; set; } = [];

    [JsonPropertyName("items")]
    public List<GridItem>? Items { get; set; }

    [JsonPropertyName("matches")]
    public List<GridMatch>? Matches { get; set; }
}

class GridItem
{
    [JsonPropertyName("row")]
    public int Row { get; set; }

    [JsonPropertyName("col")]
    public int Col { get; set; }

    [JsonPropertyName("w")]
    public int W { get; set; }

    [JsonPropertyName("h")]
    public int H { get; set; }
}

class GridMatch
{
    [JsonPropertyName("row")]
    public int Row { get; set; }

    [JsonPropertyName("col")]
    public int Col { get; set; }

    [JsonPropertyName("similarity")]
    public double Similarity { get; set; }
}

class DetectGridResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("detected")]
    public bool Detected { get; set; }

    [JsonPropertyName("region")]
    public RegionRect? Region { get; set; }

    [JsonPropertyName("cols")]
    public int Cols { get; set; }

    [JsonPropertyName("rows")]
    public int Rows { get; set; }

    [JsonPropertyName("cellWidth")]
    public double CellWidth { get; set; }

    [JsonPropertyName("cellHeight")]
    public double CellHeight { get; set; }
}

class TemplateMatchResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("found")]
    public bool Found { get; set; }

    [JsonPropertyName("x")]
    public int X { get; set; }

    [JsonPropertyName("y")]
    public int Y { get; set; }

    [JsonPropertyName("width")]
    public int Width { get; set; }

    [JsonPropertyName("height")]
    public int Height { get; set; }

    [JsonPropertyName("confidence")]
    public double Confidence { get; set; }
}

class DiffOcrParams
{
    [JsonPropertyName("diffThresh")]
    public int DiffThresh { get; set; } = 20;

    [JsonPropertyName("rowThreshDiv")]
    public int RowThreshDiv { get; set; } = 40;

    [JsonPropertyName("colThreshDiv")]
    public int ColThreshDiv { get; set; } = 8;

    [JsonPropertyName("maxGap")]
    public int MaxGap { get; set; } = 20;

    [JsonPropertyName("trimCutoff")]
    public double TrimCutoff { get; set; } = 0.4;

    [JsonPropertyName("kernelSize")]
    public int KernelSize { get; set; } = 41;

    [JsonPropertyName("upscale")]
    public int Upscale { get; set; } = 2;

    [JsonPropertyName("useBackgroundSub")]
    public bool UseBackgroundSub { get; set; } = true;

    [JsonPropertyName("dimPercentile")]
    public int DimPercentile { get; set; } = 40;

    [JsonPropertyName("textThresh")]
    public int TextThresh { get; set; } = 60;

    [JsonPropertyName("softThreshold")]
    public bool SoftThreshold { get; set; } = false;

    [JsonPropertyName("ocrPad")]
    public int OcrPad { get; set; } = 10;

    [JsonPropertyName("usePerLineOcr")]
    public bool UsePerLineOcr { get; set; } = false;

    [JsonPropertyName("lineGapTolerance")]
    public int LineGapTolerance { get; set; } = 10;

    [JsonPropertyName("linePadY")]
    public int LinePadY { get; set; } = 20;

    [JsonPropertyName("psm")]
    public int Psm { get; set; } = 6;

    public DiffOcrParams Clone() => (DiffOcrParams)MemberwiseClone();

    public override string ToString() =>
        UseBackgroundSub
            ? $"bgSub dimPct={DimPercentile} textThresh={TextThresh} soft={SoftThreshold} ocrPad={OcrPad} perLine={UsePerLineOcr} lineGap={LineGapTolerance} linePadY={LinePadY} psm={Psm} diffThresh={DiffThresh} rowThreshDiv={RowThreshDiv} colThreshDiv={ColThreshDiv} maxGap={MaxGap} trimCutoff={TrimCutoff:F2} upscale={Upscale}"
            : $"topHat kernelSize={KernelSize} ocrPad={OcrPad} perLine={UsePerLineOcr} lineGap={LineGapTolerance} linePadY={LinePadY} psm={Psm} diffThresh={DiffThresh} rowThreshDiv={RowThreshDiv} colThreshDiv={ColThreshDiv} maxGap={MaxGap} trimCutoff={TrimCutoff:F2} upscale={Upscale}";
}

class TestCase
{
    [JsonPropertyName("id")]
    public string Id { get; set; } = "";

    [JsonPropertyName("image")]
    public string Image { get; set; } = "";

    [JsonPropertyName("fullImage")]
    public string FullImage { get; set; } = "";

    [JsonPropertyName("expected")]
    public List<string> Expected { get; set; } = [];
}

class TestCaseResult
{
    [JsonPropertyName("id")]
    public string Id { get; set; } = "";

    [JsonPropertyName("passed")]
    public bool Passed { get; set; }

    [JsonPropertyName("score")]
    public double Score { get; set; }

    [JsonPropertyName("matched")]
    public List<string> Matched { get; set; } = [];

    [JsonPropertyName("missed")]
    public List<string> Missed { get; set; } = [];

    [JsonPropertyName("extra")]
    public List<string> Extra { get; set; } = [];
}

class TestResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("passed")]
    public int Passed { get; set; }

    [JsonPropertyName("failed")]
    public int Failed { get; set; }

    [JsonPropertyName("total")]
    public int Total { get; set; }

    [JsonPropertyName("results")]
    public List<TestCaseResult> Results { get; set; } = [];
}

class TuneResponse
{
    [JsonPropertyName("ok")]
    public bool Ok => true;

    [JsonPropertyName("bestScore")]
    public double BestScore { get; set; }

    [JsonPropertyName("bestParams")]
    public DiffOcrParams BestParams { get; set; } = new();

    [JsonPropertyName("iterations")]
    public int Iterations { get; set; }
}