77 lines
2.7 KiB
C#
77 lines
2.7 KiB
C#
namespace View_by_Distance.Shared.Models.Stateless.Methods;
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internal abstract class Mapping
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{
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internal static (string?, string?, string?, bool?) GetSegments(string facesFileNameExtension, string fileName)
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{
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string[] segments = fileName.Split('.');
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string? id;
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string? extensionLowered;
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bool? needsFacesFileNameExtension;
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string? normalizedRectangle;
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if (segments.Length < 4 || $".{segments[3]}" != facesFileNameExtension)
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{
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id = null;
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extensionLowered = null;
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normalizedRectangle = null;
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needsFacesFileNameExtension = null;
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}
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else
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{
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id = segments[0];
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extensionLowered = $".{segments[2]}";
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normalizedRectangle = segments[1];
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needsFacesFileNameExtension = segments.Length == 3;
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}
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return new(id, normalizedRectangle, extensionLowered, needsFacesFileNameExtension);
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}
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private static (int?, int?) GetConvertedFromSegments(string facesFileNameExtension, string fileName)
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{
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int? id;
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int? normalizedRectangle;
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(string? Id, string? NormalizedRectangle, string? ExtensionLowered, bool? Check) segments = GetSegments(facesFileNameExtension, fileName);
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if (string.IsNullOrEmpty(segments.Id) || string.IsNullOrEmpty(segments.NormalizedRectangle) || string.IsNullOrEmpty(segments.ExtensionLowered) || segments.Check is null)
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{
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id = null;
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normalizedRectangle = null;
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}
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else if (!int.TryParse(segments.Id, out int idValue) || !int.TryParse(segments.NormalizedRectangle, out int normalizedRectangleValue))
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{
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id = null;
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normalizedRectangle = null;
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}
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else
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{
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id = idValue;
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normalizedRectangle = normalizedRectangleValue;
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}
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return new(id, normalizedRectangle);
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}
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internal static (int?, int?) GetConverted(string facesFileNameExtension, string file)
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{
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int? id;
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int? normalizedRectangle;
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string fileName = Path.GetFileName(file);
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if (fileName.Length >= 2 && !fileName[1..].Contains('-'))
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(id, normalizedRectangle) = GetConvertedFromSegments(facesFileNameExtension, fileName);
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else
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{
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id = null;
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normalizedRectangle = null;
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}
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return new(id, normalizedRectangle);
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}
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internal static int GetAreaPermille(int faceAreaPermille, int bottom, int height, int left, int right, int top, int width)
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{
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int result;
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double area = width * height;
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double locationArea = (right - left) * (bottom - top);
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result = (int)Math.Round(locationArea / area * faceAreaPermille, 0);
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return result;
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}
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} |