using Godot;

using Rokojori;
using System.Collections.Generic;
using System;

namespace Rokojori.DocGenerator
{  
  public class ClassTypeEntry
  {
    public Type type;
    public string path;
  }

  public class DocGenerator
  {    
    string path = "";
    string outputPath = "";
    List<string> icons = new List<string>();
  
    public List<FilePath> classFiles = new List<FilePath>();
    public List<ClassTypeEntry> classTypes = new List<ClassTypeEntry>();
    

    public void Generate( string path, string outputPath, List<string> icons )
    {
      this.path = path;
      this.outputPath = outputPath;
      this.icons = icons;

      GetFiles();
      CreateTypesFromFiles();
      IncludeDefaultTypes();
      GenerateDocsFromTypes();
    }

    void GetFiles()
    {
      classFiles = FilesSync.GetFiles( path, f => f.fileExtension == ".cs", true );
    }

    void IncludeDefaultTypes()
    {
      var defaultTypes = new List<Type>()
      {
        typeof( RJNetworkNode ),
        typeof( RJAction ),
        typeof( RJSensor ),
        typeof( RJSelector ),
        typeof( RJSensor )
      };

      defaultTypes.ForEach(
        ( dt )=>
        {
          var entry = new ClassTypeEntry();
          entry.type = dt;
          entry.path = null;

          classTypes.Add( entry);
        }
      );


    }

    void CreateTypesFromFiles()
    {
      var genericType = new EventSlot<int>().GetType();
     var namespaceLabel = "Rokojori";
      var assembly = genericType.Assembly;

      classFiles.ForEach(
        ( cf )=>
        {
          var name = cf.fileName;
          var type = ReflectionHelper.GetTypeByName( namespaceLabel + "." + name );

          if ( type == null )
          {
            type = ReflectionHelper.GetTypeByNameFromAssembly( name, assembly );
          } 

          if ( type != null )
          {
            var entry = new ClassTypeEntry();
            entry.type = type;
            entry.path = cf.fullPath;

            classTypes.Add( entry);
          }

        }
      );
    }

    void GenerateDocsFromTypes()
    {
      classTypes.ForEach( 
        ( c )=>
        {
          var cdg = new ClassDocGenerator();
          var cinfo = cdg.Create( c.path, c.type, icons );

          var outputPath = FilePath.Join( this.outputPath, cinfo.name + ".json" );
          FilesSync.SaveJSON( outputPath, cinfo );
        }
      );
    }
  }
}