add saved, distributed and seen props. Handle distributed

backend/src/graphql/messages.ts

@@ -6,6 +6,9 @@ export const createMessageMutation = () => {
       CreateMessage(roomId: $roomId, content: $content) {
         id
         content
+        saved
+        distributed
+        seen
       }
     }
   `
@@ -22,6 +25,9 @@ export const messageQuery = () => {
         username
         avatar
         date
+        saved
+        distributed
+        seen
       }
     }
   `

backend/src/schema/resolvers/messages.spec.ts

@@ -122,6 +122,9 @@ describe('Message', () => {
                 CreateMessage: {
                   id: expect.any(String),
                   content: 'Some nice message to other chatting user',
+                  saved: true,
+                  distributed: false,
+                  seen: false,
                 },
               },
             })
@@ -217,6 +220,9 @@ describe('Message', () => {
                   username: 'Chatting User',
                   avatar: expect.any(String),
                   date: expect.any(String),
+                  saved: true,
+                  distributed: true,
+                  seen: false,
                 },
               ],
             },
@@ -261,6 +267,9 @@ describe('Message', () => {
                     username: 'Chatting User',
                     avatar: expect.any(String),
                     date: expect.any(String),
+                    saved: true,
+                    distributed: true,
+                    seen: false,
                   }),
                   expect.objectContaining({
                     id: expect.any(String),
@@ -269,6 +278,9 @@ describe('Message', () => {
                     username: 'Other Chatting User',
                     avatar: expect.any(String),
                     date: expect.any(String),
+                    saved: true,
+                    distributed: true,
+                    seen: false,
                   }),
                   expect.objectContaining({
                     id: expect.any(String),
@@ -277,6 +289,9 @@ describe('Message', () => {
                     username: 'Chatting User',
                     avatar: expect.any(String),
                     date: expect.any(String),
+                    saved: true,
+                    distributed: false,
+                    seen: false,
                   }),
                 ]),
               },

backend/src/schema/resolvers/messages.ts

@@ -14,9 +14,37 @@ export default {
         },
       }
       const resolved = await neo4jgraphql(object, params, context, resolveInfo)
+
       if (resolved) {
+        const undistributedMessagesIds = resolved
+          .filter((msg) => !msg.distributed && msg.senderId !== context.user.id)
+          .map((msg) => msg.id)
+        if (undistributedMessagesIds.length > 0) {
+          const session = context.driver.session()
+          const writeTxResultPromise = session.writeTransaction(async (transaction) => {
+            const setDistributedCypher = `
+              MATCH (m:Message) WHERE m.id IN $undistributedMessagesIds
+              SET m.distributed = true
+              RETURN m { .* }
+            `
+            const setDistributedTxResponse = await transaction.run(setDistributedCypher, {
+              undistributedMessagesIds,
+            })
+            const messages = await setDistributedTxResponse.records.map((record) => record.get('m'))
+            return messages
+          })
+          try {
+            await writeTxResultPromise
+          } finally {
+            session.close()
+          }
+          // send subscription to author to updated the messages
+        }
         resolved.forEach((message) => {
           message._id = message.id
+          if (message.senderId !== context.user.id) {
+            message.distributed = true
+          }
         })
       }
       return resolved
@@ -35,7 +63,10 @@ export default {
           CREATE (currentUser)-[:CREATED]->(message:Message {
             createdAt: toString(datetime()),
             id: apoc.create.uuid(),
-            content: $content
+            content: $content,
+            saved: true,
+            distributed: false,
+            seen: false
           })-[:INSIDE]->(room)
           RETURN message { .* }
         `

backend/src/schema/types/type/Message.gql

@@ -16,6 +16,10 @@ type Message {
   username: String! @cypher(statement: "MATCH (this)<-[:CREATED]-(user:User) RETURN user.name")
   avatar: String @cypher(statement: "MATCH (this)<-[:CREATED]-(:User)-[:AVATAR_IMAGE]->(image:Image) RETURN image.url")
   date: String!  @cypher(statement: "RETURN this.createdAt")
+
+  saved: Boolean
+  distributed: Boolean
+  seen: Boolean
 }
 
 type Mutation {