Update schema

server/schema.graphql

@@ -301,6 +301,16 @@ type ContentBlockNode implements Node & ContentBlockInterface {
   originalCreator: PublicUserNode
 }
 
+type ContentBlockNodeConnection {
+  pageInfo: PageInfo!
+  edges: [ContentBlockNodeEdge]!
+}
+
+type ContentBlockNodeEdge {
+  node: ContentBlockNode
+  cursor: String!
+}
+
 input ContentElementInput {
   id: String
   type: InputTypes!
@@ -434,6 +444,18 @@ type DeleteRoomPayload {
   clientMutationId: String
 }
 
+input DeleteSnapshotInput {
+  id: ID!
+  clientMutationId: String
+}
+
+type DeleteSnapshotPayload {
+  result: DeleteSnapshotResult
+  clientMutationId: String
+}
+
+union DeleteSnapshotResult = Success | NotOwner
+
 type DjangoDebug {
   sql: [DjangoDebugSQL]
 }
@@ -678,6 +700,7 @@ type Mutation {
   applySnapshot(input: ApplySnapshotInput!): ApplySnapshotPayload
   shareSnapshot(input: ShareSnapshotInput!): ShareSnapshotPayload
   updateSnapshot(input: UpdateSnapshotInput!): UpdateSnapshotPayload
+  deleteSnapshot(input: DeleteSnapshotInput!): DeleteSnapshotPayload
   _debug: DjangoDebug
 }
 
@@ -755,6 +778,16 @@ type ObjectiveNode implements Node {
   mine: Boolean
 }
 
+type ObjectiveNodeConnection {
+  pageInfo: PageInfo!
+  edges: [ObjectiveNodeEdge]!
+}
+
+type ObjectiveNodeEdge {
+  node: ObjectiveNode
+  cursor: String!
+}
+
 type PageInfo {
   hasNextPage: Boolean!
   hasPreviousPage: Boolean!
@@ -954,14 +987,20 @@ type SnapshotContentBlockNode implements Node & ContentBlockInterface {
 }
 
 type SnapshotNode implements Node {
-  title: String
   id: ID!
+  module: ModuleNode!
   chapters: [SnapshotChapterNode]
+  hiddenContentBlocks(offset: Int, before: String, after: String, first: Int, last: Int, slug: String, title: String): ContentBlockNodeConnection!
+  created: DateTime!
+  creator: String!
+  shared: Boolean!
+  objectiveGroups: [SnapshotObjectiveGroupNode]
+  hiddenObjectives(offset: Int, before: String, after: String, first: Int, last: Int, text: String): ObjectiveNodeConnection!
+  title: String
+  metaTitle: String
+  heroImage: String
   changes: SnapshotChangesNode
   mine: Boolean
-  shared: Boolean!
-  creator: String!
-  objectiveGroups: [SnapshotObjectiveGroupNode]
 }
 
 type SnapshotNodeConnection {
@@ -1048,6 +1087,14 @@ type SubmissionFeedbackNode implements Node {
   id: ID!
 }
 
+type Success implements SuccessNode {
+  message: String
+}
+
+interface SuccessNode {
+  message: String
+}
+
 type SurveyNode implements Node {
   id: ID!
   title: String!