From b66652a16b66bbdb28c1449384054c25813e2d06 Mon Sep 17 00:00:00 2001
From: Sebastien DUMETZ <s.dumetz@holusion.com>
Date: Tue, 23 Jan 2024 16:44:01 +0100
Subject: [PATCH] use dereferenced versions of merge tools

---
 .../server/routes/scenes/put/document.test.ts | 60 ++++++++++++++++++-
 source/server/routes/scenes/put/document.ts   | 11 ++--
 2 files changed, 65 insertions(+), 6 deletions(-)

diff --git a/source/server/routes/scenes/put/document.test.ts b/source/server/routes/scenes/put/document.test.ts
index bf73caa7..bde38812 100644
--- a/source/server/routes/scenes/put/document.test.ts
+++ b/source/server/routes/scenes/put/document.test.ts
@@ -63,7 +63,7 @@ describe("PUT /scenes/:scene/scene.svx.json", function(){
     expect(JSON.parse(data)).to.deep.equal(sampleDoc);
   });
 
-  it("uses the structured scene merge algorithm when possible", async function(){
+  it("uses a merge algorithm when possible", async function(){
     //Insert a change that happened between checkout and commit
     
     let currentDoc = JSON.parse(sampleDocString);
@@ -88,4 +88,62 @@ describe("PUT /scenes/:scene/scene.svx.json", function(){
     expect(data.metas[0].collection.titles["FR"]).to.equal("Titre 1");
   });
 
+  it("performs structured merge on the document", async function(){
+    //This is a slightly less trivial case where we check if proper deduplication is applied
+    //Insert a change that happened between checkout and commit
+        
+    let currentDoc = JSON.parse(sampleDocString);
+    currentDoc.nodes.push({
+      "name": "Model 1",
+      "model": 1,
+    });
+    currentDoc.models.push({
+      "units": "mm",
+      "derivatives": [
+        {
+          "usage": "Web3D",
+          "quality": "High",
+          "assets": [{
+              "uri": "models/model1.glb",
+              "type": "Model",
+            }
+          ]
+        }
+      ]
+    });
+    await vfs.writeDoc(JSON.stringify(currentDoc), scene_id, user.uid);
+
+
+    //Make our user reference the first doc generation
+    sampleDoc.asset.id = 1;
+    sampleDoc.nodes.push({
+      "name": "Model 2",
+      "model": 1,
+    });
+    sampleDoc.models.push({
+      "units": "mm",
+      "derivatives": [
+        {
+          "usage": "Web3D",
+          "quality": "High",
+          "assets": [{
+              "uri": "models/model2.glb",
+              "type": "Model",
+            }
+          ]
+        }
+      ]
+    });
+    let r = await request(this.server).put(`/scenes/${titleSlug}/scene.svx.json`)
+    .auth("bob", "12345678")
+    .set("Content-Type", "application/si-dpo-3d.document+json")
+    .send(sampleDoc)
+    .expect(204);
+
+    let {ctime, mtime, data:docString, id, ...doc} =  await vfs.getDoc(scene_id);
+    const data = JSON.parse(docString);
+    expect(data.models).to.have.length(3);
+    expect(data.nodes).to.have.length(6);
+  });
+
 });
diff --git a/source/server/routes/scenes/put/document.ts b/source/server/routes/scenes/put/document.ts
index fab5648e..f92f3dde 100644
--- a/source/server/routes/scenes/put/document.ts
+++ b/source/server/routes/scenes/put/document.ts
@@ -1,4 +1,4 @@
-
+import {inspect} from "util";
 import path from "path";
 import { Request, Response } from "express";
 
@@ -48,14 +48,15 @@ export default async function handlePutDocument(req :Request, res :Response){
     const {data: refDocString} = await tr.getDocById(refId);
     const refDoc = JSON.parse(refDocString);
 
-    const docDiff = merge.diff(refDoc, newDoc);
+    const docDiff = merge.diffDoc(refDoc, newDoc);
     if(Object.keys(docDiff).length == 0){
-      console.log("Nothing to do");
+      console.log("PUT document: Nothing to do");
       //Nothing to do
       return res.status(204).send();
     }
-    console.log("Merge changes : ", JSON.stringify(docDiff));
-    const mergedDoc = merge.apply(currentDoc, docDiff);
+
+    console.log("PUT document (merge): ", JSON.stringify(docDiff, null, 2));
+    const mergedDoc = merge.applyDoc(currentDoc, docDiff);
     let s = JSON.stringify(mergedDoc);
     if(s == "{}") throw new BadRequestError(`Invalid json document`);
     let id = await tr.writeDoc(s, scene, uid);