feat(queue): implement database driver

src/helpers/queue.ts

@@ -1,126 +1,211 @@
 import { Log } from '@athenna/logger'
 import { Service } from '@athenna/ioc'
-import { File, Path } from '@athenna/common'
+import { Database, type DatabaseImpl } from '@athenna/database'
 
-class VanillaQueue<T = any> {
+class VanillaQueue {
   private queueName = 'default'
+  private queues: Record<string, any[]> = {
+    default: [],
+    deadletter: []
+  }
+
+  public async truncate() {
+    Object.keys(this.queues).forEach(key => (this.queues[key] = []))
+  }
 
-  private getFile() {
-    const path = Path.storage('queues.json')
+  public queue(name: string) {
+    this.queueName = name
+
+    if (!this.queues[name]) {
+      this.queues[name] = []
+    }
 
-    return new File(path, JSON.stringify({ default: [], deadletter: [] }))
+    return this
   }
 
-  public async truncate() {
-    const path = Path.storage('queues.json')
+  public async add(item: unknown) {
+    this.queues[this.queueName].push(item)
 
-    return new File(path, '').setContent(
-      JSON.stringify({ default: [], deadletter: [] }, null, 2)
-    )
+    return this
   }
 
-  public async queue(name: string) {
-    const file = this.getFile()
-    const queues = file.getContentAsJsonSync()
+  public async pop() {
+    if (!this.queues[this.queueName].length) {
+      return null
+    }
 
-    this.queueName = name
+    return this.queues[this.queueName].shift()
+  }
 
-    if (!queues[name]) {
-      queues[name] = []
+  public async peek() {
+    if (!this.queues[this.queueName].length) {
+      return null
     }
 
-    file.setContentSync(JSON.stringify(queues))
+    return this.queues[this.queueName][0]
+  }
 
-    return this
+  public async length() {
+    return this.queues[this.queueName].length
   }
 
-  public async add(item: T) {
-    const file = this.getFile()
-    const queues = file.getContentAsJsonSync()
+  public async isEmpty() {
+    return !this.queues[this.queueName].length
+  }
 
-    queues[this.queueName].push(item)
+  public async process(processor: (item: unknown) => any | Promise<any>) {
+    const data = await this.pop()
 
-    file.setContentSync(JSON.stringify(queues))
+    try {
+      await processor(data)
+    } catch (err) {
+      Log.error(
+        `Adding data of ({yellow} "${this.queueName}") to deadletter queue due to:`,
+        err
+      )
+
+      this.queues.deadletter.push({ queue: this.queueName, data })
+    }
+  }
+}
+
+class DatabaseQueue {
+  private DB: DatabaseImpl
+  private dbConnection: string
+
+  private table: string
+  private queueName: string
+  private connection: string
+  private deadLetterQueueName: string
+
+  public constructor(connection: string) {
+    const {
+      table,
+      queue,
+      deadletter,
+      connection: dbConnection
+    } = Config.get(`database.connections.${connection}`)
+
+    this.table = table
+    this.queueName = queue
+    this.connection = connection
+    this.dbConnection = dbConnection
+    this.deadLetterQueueName = deadletter
+
+    this.DB = Database.connection(this.dbConnection)
+  }
+
+  public async truncate() {
+    await this.DB.truncate(this.table)
+  }
+
+  public queue(name: string) {
+    this.queueName = name
+
+    return this
+  }
+
+  public async add(item: unknown) {
+    await this.DB.table(this.table).create({
+      queue: this.queueName,
+      item
+    })
 
     return this
   }
 
   public async pop() {
-    const file = this.getFile()
-    const queues = file.getContentAsJsonSync()
+    const data = await this.DB.table(this.table)
+      .where('queue', this.queueName)
+      .orderBy('id', 'DESC')
+      .find()
 
-    if (!queues[this.queueName].length) {
-      return null
+    if (!data) {
+      return
     }
 
-    const item = queues[this.queueName].shift()
+    await this.DB.table(this.table)
+      .where('id', data.id)
+      .where('queue', this.queueName)
+      .delete()
 
-    file.setContentSync(JSON.stringify(queues))
-
-    return item
+    return data.item
   }
 
   public async peek() {
-    const file = this.getFile()
-    const queues = file.getContentAsJsonSync()
+    const data = await this.DB.table(this.table)
+      .where('queue', this.queueName)
+      .orderBy('id', 'DESC')
+      .find()
 
-    if (!queues[this.queueName].length) {
+    if (!data) {
       return null
     }
 
-    return queues[this.queueName][0]
+    return data.item
   }
 
-  public async length() {
-    const file = this.getFile()
-    const queues = file.getContentAsJsonSync()
-
-    return queues[this.queueName].length
+  public length() {
+    return this.DB.table(this.table).where('queue', this.queueName).count()
   }
 
-  public async process(processor: (item: T) => any | Promise<any>) {
+  public async process(processor: (item: unknown) => any | Promise<any>) {
     const data = await this.pop()
 
     try {
       await processor(data)
     } catch (err) {
-      console.log(err)
       Log.error(
         `Adding data of ({yellow} "${this.queueName}") to deadletter queue due to:`,
         err
       )
 
-      const queue = await new QueueImpl().queue('deadletter')
-
-      await queue.add({ queue: this.queueName, data })
+      await this.DB.table(this.table).create({
+        queue: this.deadLetterQueueName,
+        formerQueue: this.queueName,
+        item: data
+      })
     }
   }
 
   public async isEmpty() {
-    const file = this.getFile()
-    const queues = file.getContentAsJsonSync()
+    const count = await this.DB.table(this.table)
+      .where('queue', this.queueName)
+      .count()
 
-    return !queues[this.queueName].length
+    return count === '0'
   }
 }
 
-@Service({ alias: 'App/Helpers/Queue' })
-export class QueueImpl<T = any> {
-  public driver = new VanillaQueue<T>()
+@Service({ alias: 'App/Helpers/Queue', type: 'singleton' })
+export class QueueImpl {
+  public driver: any = new VanillaQueue()
+
+  public connection(name: string) {
+    if (name === 'vanilla') {
+      this.driver = new VanillaQueue()
+    }
+
+    if (name === 'database') {
+      this.driver = new DatabaseQueue('queue')
+    }
+
+    return this
+  }
 
   public async truncate() {
     await this.driver.truncate()
 
     return this
   }
 
-  public async queue(name: string) {
-    await this.driver.queue(name)
+  public queue(name: string) {
+    this.driver.queue(name)
 
     return this
   }
 
-  public async add(item: T) {
+  public async add(item: unknown) {
     await this.driver.add(item)
   }
 
@@ -136,7 +221,7 @@ export class QueueImpl<T = any> {
     return this.driver.length()
   }
 
-  public async process(cb: (item: T) => any | Promise<any>) {
+  public async process(cb: (item: unknown) => any | Promise<any>) {
     return this.driver.process(cb)
   }
 

src/providers/queueworker.provider.ts

@@ -52,17 +52,17 @@ export default class QueueWorkerProvider extends ServiceProvider {
     processor: (data: any) => any | Promise<any>
   ) {
     const interval = setInterval(async () => {
-      const queue = await Queue.queue(queueName)
+      const queue = Queue.queue(queueName)
 
-      if (await queue.isEmpty()) {
+      if (queue.isEmpty()) {
         return
       }
 
       Log.info(`Processing jobs of ({yellow} "${queueName}") queue`)
 
       await queue.process(processor)
 
-      const jobsLength = await queue.length()
+      const jobsLength = queue.length()
 
       if (jobsLength) {
         Log.info(

src/services/auth.service.ts

@@ -47,7 +47,7 @@ export class AuthService {
 
     const user = await this.userService.create(data)
 
-    await Queue.queue('user:confirm').then(q => q.add(user))
+    await Queue.queue('user:confirm').add(user)
 
     return user
   }

src/services/user.service.ts

@@ -62,23 +62,26 @@ export class UserService {
 
     switch (`${isEmailEqual}:${isPasswordEqual}`) {
       case 'false:true':
-        await Queue.queue('user:email').then(q =>
-          q.add({ user, token, email: data.email })
-        )
+        await Queue.queue('user:email').add({ user, token, email: data.email })
         break
       case 'true:false':
         data.password = await bcrypt.hash(data.password, 10)
 
-        await Queue.queue('user:password').then(q =>
-          q.add({ user, token, password: data.password })
-        )
+        await Queue.queue('user:password').add({
+          user,
+          token,
+          password: data.password
+        })
         break
       case 'false:false':
         data.password = await bcrypt.hash(data.password, 10)
 
-        await Queue.queue('user:email:password').then(q =>
-          q.add({ user, token, email: data.email, password: data.password })
-        )
+        await Queue.queue('user:email:password').add({
+          user,
+          token,
+          email: data.email,
+          password: data.password
+        })
     }
 
     data = Json.omit(data, ['email', 'password'])

tests/e2e/auth.controller.test.ts

@@ -127,7 +127,7 @@ export default class AuthControllerTest extends BaseE2ETest {
       }
     })
 
-    const queue = await Queue.queue('user:confirm')
+    const queue = Queue.queue('user:confirm')
 
     assert.deepEqual(await queue.length(), 1)
     assert.isTrue(await User.exists({ email: '[email protected]' }))

tests/e2e/user.controller.test.ts

@@ -155,7 +155,7 @@ export default class UserControllerTest extends BaseE2ETest {
 
     await user.refresh()
 
-    const queue = await Queue.queue('user:email')
+    const queue = Queue.queue('user:email')
 
     assert.deepEqual(await queue.length(), 1)
     assert.deepEqual(user.name, 'Customer Updated')
@@ -177,7 +177,7 @@ export default class UserControllerTest extends BaseE2ETest {
 
     await user.refresh()
 
-    const queue = await Queue.queue('user:password')
+    const queue = Queue.queue('user:password')
 
     assert.deepEqual(await queue.length(), 1)
     assert.deepEqual(user.name, 'Customer Updated')
@@ -204,7 +204,7 @@ export default class UserControllerTest extends BaseE2ETest {
 
     await user.refresh()
 
-    const queue = await Queue.queue('user:email:password')
+    const queue = Queue.queue('user:email:password')
 
     assert.deepEqual(await queue.length(), 1)
     assert.deepEqual(user.name, 'Customer Updated')

tests/unit/auth.service.test.ts

@@ -86,7 +86,7 @@ export default class AuthServiceTest {
     }
 
     Mail.when('send').resolve(undefined)
-    Queue.when('queue').resolve({ add: () => {} })
+    Queue.when('queue').return({ add: () => {} })
     Mock.when(this.userService, 'create').resolve(userToRegister)
 
     const authService = new AuthService(this.userService)