debugging

server.js

@@ -20,8 +20,8 @@ http.createServer((req, res) => {
   }
   // handle cases
   if(req_obj.url == '/new_repository'){
+    // make empty repo if dne
     // check if name already exists
-    // if(repo_names.includes(req_obj.name)){
     if(repos.has(req_obj.name)){
       throw 'Repository already exists!'
     }
@@ -35,6 +35,7 @@ http.createServer((req, res) => {
     }
   }
   else if(req_obj.url == '/fetch'){
+    // don't need to alter anything, just get newest commits.
     let obj
     // check if name is actual repo
     if(!repos.has(req_obj.name)){
@@ -70,9 +71,47 @@ http.createServer((req, res) => {
     }
   }
   else if(req_obj.url == '/commit'){
+    // 
+    let obj
+    // check if name is actual repo
     if(!repos.has(req_obj.name)){
       throw 'Repository does not exist.'
     }
+    else{
+      // get json object
+      obj = async () => {
+        obj = await JSON.parse(repos[req_obj.name])
+      }
+    }
+    // check if head == pID
+    let present = false
+    let no_coms = true
+    if(req_obj.parentID != null){
+      no_coms = false
+    }
+    for(com of obj.commits){
+      if(req_obj.parentID == com.id){
+        present = true
+        break
+      }
+    }
+    if(!present && !no_coms){
+      throw 'Most recent commit does not exist in repository.'
+    }
+    else{
+      let head = obj_commits[obj_commits.length - 1]
+      if(head == req_obj.parentID){
+        // do normally--add this to the commit list, change files by diff.
+      }
+      else{
+        // merge
+        // try(mergefilediffs)
+
+        // catch(error)
+        // write errror
+      }
+    }
+
 
     let id = require('crypto').randomBytes(16).toString('hex')
   }