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Moved startup code to server.

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Natalia Portillo
2025-11-13 05:16:58 +00:00
parent c73c4d839a
commit b1f32e6f13
10 changed files with 1106 additions and 221 deletions
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288
Marechai.Server/Helpers/SvgRender.cs Normal file
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/******************************************************************************
// MARECHAI: Master repository of computing history artifacts information
// ----------------------------------------------------------------------------
//
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// --[ License ] --------------------------------------------------------------
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2003-2021 Natalia Portillo
*******************************************************************************/
using System;
using System.IO;
using Marechai.Database.Models;
using SkiaSharp;
using Svg.Skia;
namespace Marechai.Server.Helpers;
public static class SvgRender
{
public static void RenderCountries()
{
if(!Directory.Exists("wwwroot/assets/flags/countries")) return;
foreach(string file in Directory.GetFiles("wwwroot/assets/flags/countries/",
"*.svg",
SearchOption.TopDirectoryOnly))
{
SKSvg svg = null;
string flagName = Path.GetFileNameWithoutExtension(file);
foreach(string format in new[]
{
"png", "webp"
})
{
if(!Directory.Exists(Path.Combine("wwwroot/assets/flags/countries", format)))
Directory.CreateDirectory(Path.Combine("wwwroot/assets/flags/countries", format));
SKEncodedImageFormat skFormat;
switch(format)
{
case "webp":
skFormat = SKEncodedImageFormat.Webp;
break;
default:
skFormat = SKEncodedImageFormat.Png;
break;
}
foreach(int multiplier in new[]
{
1, 2, 3
})
{
if(!Directory.Exists(Path.Combine("wwwroot/assets/flags/countries", format, $"{multiplier}x")))
{
Directory.CreateDirectory(Path.Combine("wwwroot/assets/flags/countries",
format,
$"{multiplier}x"));
}
string rendered = Path.Combine("wwwroot/assets/flags/countries",
format,
$"{multiplier}x",
flagName + $".{format}");
if(File.Exists(rendered)) continue;
Console.WriteLine("Rendering {0}", rendered);
if(svg == null)
{
svg = new SKSvg();
svg.Load(file);
}
var outFs = new FileStream(rendered, FileMode.CreateNew);
RenderSvg(svg, outFs, skFormat, 32, multiplier);
outFs.Close();
}
}
}
}
public static void ImportCompanyLogos(MarechaiContext context)
{
if(!Directory.Exists("wwwroot/assets/incoming")) return;
foreach(string file in Directory.GetFiles("wwwroot/assets/incoming",
"company_*.svg",
SearchOption.TopDirectoryOnly))
{
string filename = Path.GetFileNameWithoutExtension(file);
if(!filename.StartsWith("company_", StringComparison.InvariantCulture)) continue;
string[] pieces = filename.Split('_');
if(pieces.Length != 3) continue;
var guid = Guid.NewGuid();
if(!int.TryParse(pieces[1], out int companyId)) continue;
if(!int.TryParse(pieces[2], out int year)) continue;
try
{
context.CompanyLogos.Add(new CompanyLogo
{
CompanyId = companyId,
Year = year,
Guid = guid
});
context.SaveChanges();
}
catch(Exception)
{
continue;
}
SKSvg svg = null;
foreach(int minSize in new[]
{
256, 32
})
{
foreach(string format in new[]
{
"png", "webp"
})
{
string outDir = minSize == 32
? Path.Combine("wwwroot/assets/logos/thumbs", format)
: Path.Combine("wwwroot/assets/logos", format);
if(!Directory.Exists(outDir)) Directory.CreateDirectory(outDir);
SKEncodedImageFormat skFormat;
switch(format)
{
case "webp":
skFormat = SKEncodedImageFormat.Webp;
break;
default:
skFormat = SKEncodedImageFormat.Png;
break;
}
foreach(int multiplier in new[]
{
1, 2, 3
})
{
string outPath = Path.Combine(outDir, $"{multiplier}x");
if(!Directory.Exists(outPath)) Directory.CreateDirectory(outPath);
string rendered = Path.Combine(outPath, $"{guid}.{format}");
if(File.Exists(rendered)) continue;
Console.WriteLine("Rendering {0}", rendered);
if(svg == null)
{
svg = new SKSvg();
svg.Load(file);
}
var outFs = new FileStream(rendered, FileMode.CreateNew);
RenderSvg(svg, outFs, skFormat, minSize, multiplier);
outFs.Close();
}
}
}
File.Move(file, $"wwwroot/assets/logos/{guid}.svg");
}
}
public static void RenderSvg(SKSvg svg, Stream outStream, SKEncodedImageFormat skFormat, int minSize,
int multiplier)
{
SKRect svgSize = svg.Picture.CullRect;
float svgMax = Math.Max(svgSize.Width, svgSize.Height);
float canvasMin = minSize * multiplier;
float scale = canvasMin / svgMax;
var matrix = SKMatrix.CreateScale(scale, scale);
var bitmap = new SKBitmap((int)(svgSize.Width * scale), (int)(svgSize.Height * scale));
var canvas = new SKCanvas(bitmap);
canvas.Clear();
canvas.DrawPicture(svg.Picture, ref matrix);
canvas.Flush();
var image = SKImage.FromBitmap(bitmap);
SKData data = image.Encode(skFormat, 100);
data.SaveTo(outStream);
}
// TODO: Reduce code duplication
public static void RenderCompanyLogo(Guid guid, Stream svgStream, string wwwroot)
{
SKSvg svg = null;
foreach(int minSize in new[]
{
256, 32
})
{
foreach(string format in new[]
{
"png", "webp"
})
{
string outDir = minSize == 32
? Path.Combine(wwwroot, "assets/logos/thumbs", format)
: Path.Combine(wwwroot, "assets/logos", format);
if(!Directory.Exists(outDir)) Directory.CreateDirectory(outDir);
SKEncodedImageFormat skFormat;
switch(format)
{
case "webp":
skFormat = SKEncodedImageFormat.Webp;
break;
default:
skFormat = SKEncodedImageFormat.Png;
break;
}
foreach(int multiplier in new[]
{
1, 2, 3
})
{
string outPath = Path.Combine(outDir, $"{multiplier}x");
if(!Directory.Exists(outPath)) Directory.CreateDirectory(outPath);
string rendered = Path.Combine(outPath, $"{guid}.{format}");
if(File.Exists(rendered)) continue;
Console.WriteLine("Rendering {0}", rendered);
if(svg == null)
{
svg = new SKSvg();
svg.Load(svgStream);
}
var outFs = new FileStream(rendered, FileMode.CreateNew);
RenderSvg(svg, outFs, skFormat, minSize, multiplier);
outFs.Close();
}
}
}
}
}