Front matters

src/Yavsc.Server/Services/FrontmatterParser.cs

@@ -0,0 +1,32 @@
+using YamlDotNet.Serialization;
+using YamlDotNet.Serialization.NamingConventions;
+using Yavsc.Server.Models.Billing;
+
+namespace Yavsc.Server.Services;
+
+public static class FrontmatterParser
+{
+    public  const string YamlSeparator = "---";
+
+    private static readonly IDeserializer _deserializer =
+        new DeserializerBuilder()
+            .WithNamingConvention(CamelCaseNamingConvention.Instance)
+            .IgnoreUnmatchedProperties()
+            .Build();
+
+    public static FrontmatterOffreResult Parse(string markdown)
+    {
+        // Le contenu doit commencer par ----
+        if (!markdown.TrimStart().StartsWith(YamlSeparator))
+            return new FrontmatterOffreResult { Corps = markdown };
+        var parts = markdown.TrimStart()[3..].Split(new[] { "\n"+YamlSeparator }, 2,
+                           StringSplitOptions.None);
+        if (parts.Length < 2)
+            return new FrontmatterOffreResult { Corps = markdown };
+        var yamlBlock = parts[0].Trim();
+        var corps     = parts[1].Trim();
+        var meta = _deserializer.Deserialize<FrontmatterOffreResult>(yamlBlock);
+        meta.Corps = corps;
+        return meta;
+    }
+}