Continued implementing sharing

app/imports/api/sharing/sharing.js

@@ -3,18 +3,64 @@ import { assertOwnership } from '/imports/api/sharing/sharingPermissions.js';
 import fetchDocByRef from '/imports/api/parenting/fetchDocByRef.js';
 import getCollectionByName from '/imports/api/parenting/getCollectionByName.js';
 import { RefSchema } from '/imports/api/parenting/ChildSchema.js';
+import { ValidatedMethod } from 'meteor/mdg:validated-method';
 
 const setPublic = new ValidatedMethod({
   name: 'sharing.methods.setPublic',
 	validate: new SimpleSchema({
 		docRef: RefSchema,
-    public: { type: Boolean },
+    isPublic: { type: Boolean },
   }).validator(),
-  run({docRef, public}){
+  run({docRef, isPublic}){
 		let doc = fetchDocByRef(docRef);
 		assertOwnership(doc, this.userId);
-		getCollectionByName(docRef.collection).update(docRef.id, {$set: {public}});
+		return getCollectionByName(docRef.collection).update(docRef.id, {
+      $set: {public: isPublic},
+    });
 	},
 });
 
-export { setPublic };
+const updateUserSharePermissions = new ValidatedMethod({
+  name: 'sharing.methods.updateUserSharePermissions',
+	validate: new SimpleSchema({
+		docRef: RefSchema,
+    userId: {
+      type: String,
+      regEx: SimpleSchema.RegEx.Id,
+    },
+    role: {
+      type: String,
+      allowedValues: ['reader', 'writer', 'none'],
+    },
+  }).validator(),
+  run({docRef, userId, role}){
+		let doc = fetchDocByRef(docRef);
+    if (role === 'none'){
+      // only asser ownership if you aren't removing yourself
+      if (this.userId !== userId){
+        assertOwnership(doc, this.userId);
+      }
+      return getCollectionByName(docRef.collection).update(docRef.id, {
+        $pullAll: { readers: userId, writers: userId },
+      });
+    }
+    if (doc.owner === userId){
+      throw new Meteor.Error('Sharing update failed',
+      'User is already the owner of this document');
+    }
+    assertOwnership(doc, this.userId);
+    if (role === 'reader'){
+      return getCollectionByName(docRef.collection).update(docRef.id, {
+        $addToSet: { readers: userId },
+        $pullAll: { writers: userId },
+      });
+    } else if (role === 'writer'){
+      return getCollectionByName(docRef.collection).update(docRef.id, {
+        $addToSet: { writers: userId },
+        $pullAll: { readers: userId },
+      });
+    }
+	},
+});
+
+export { setPublic, updateUserSharePermissions };