changes

Controllers/TreeController.cs

@@ -0,0 +1,32 @@
+using Microsoft.AspNetCore.Mvc;
+using public_valetax.DTOs;
+using public_valetax.Repositories;
+
+namespace public_valetax.Controllers
+{
+    [ApiController]
+    [Route("api.[controller]")]
+    public class TreeController(ITreeRepository _treeRepository) : ControllerBase
+    {
+        [HttpPost("get")]
+        public async Task<ActionResult<MNode>> Get([FromQuery] string treeName)
+        {
+            var tree = await _treeRepository.GetTreeStructureAsync(treeName);
+            
+            // If tree doesn't exist, create it
+            if (tree == null)
+            {
+                // Create the tree (implementation would depend on your requirements)
+                // For now, we'll just return an empty structure
+                tree = new MNode
+                {
+                    Id = 0,
+                    Name = treeName,
+                    Children = []
+                };
+            }
+            
+            return Ok(tree);
+        }
+    }
+}