real compiler

Program.cs

@@ -1,2 +1,55 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World! {0}", string.Join("; ", args));
+using System.Text.Json;
+using s8n_runtime.ViewModels;
+
+string workflowViewFile = Environment.GetEnvironmentVariable("WORKFLOW_FILE")!;
+string projectDirectory = Environment.GetEnvironmentVariable("PROJECT_DIR") ?? $"/sources";
+
+var workflow = JsonSerializer.Deserialize<S8nWorkflow>(File.OpenRead(workflowViewFile), JsonSerializerOptions.Web)!;
+
+var edgesFile = Path.Combine("/sources", $"{workflow.Name}.Edges.cs");
+var nodesFile = Path.Combine("/sources", $"{workflow.Name}.Nodes.cs");
+
+// Linking
+const string templateEdges = """
+// !Warning! Please, don't change this file. Code autogenerated
+#pragma warning disable CS8622 // Nullability of reference types in type of parameter doesn't match the target delegate (possibly because of nullability attributes).
+
+public partial class {0}
+{{
+    public void Connect()
+    {{
+        // edges connect here >>>
+        {1}
+    }}
+
+    public void Disconnect()
+    {{
+        // edges disconnect here >>>
+        {2}
+    }}
+}}
+
+""";
+const string templateNodes = """
+// !Warning! Please, don't change this file. Code autogenerated
+
+public partial class {0}
+{{
+    // nodes here >>>
+    
+    {1}
+}}
+""";
+
+static string GetConnection(WorkflowEdge edge) =>
+    $"{edge.Source}{(string.IsNullOrEmpty(edge.SourceHandle) ? string.Empty : ".")}{edge.SourceHandle ?? string.Empty} {(
+        edge.IsEvent ? "+" : string.Empty
+        )}= {edge.Target}{(string.IsNullOrEmpty(edge.TargetHandle) ? string.Empty : ".")}{edge.TargetHandle ?? string.Empty}";
+
+string edgesConnections = string.Join("\n", workflow.Edges.Select(e => $"// {e.Id}\n        {GetConnection(e)};"));
+var edges = string.Format(templateEdges, workflow.Name, edgesConnections, edgesConnections.Replace('+', '-'));
+string nodesFields = string.Join("\n    ", workflow.Nodes.Select(n => $"// {n.Data?.Label}\n    public {n.Class} {n.Id};"));
+var nodes = string.Format(templateNodes, workflow.Name, nodesFields);
+
+await File.WriteAllTextAsync(edgesFile, edges);
+await File.WriteAllTextAsync(nodesFile, nodes);