3.1.5

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/taskbuffer",
-  "version": "3.0.11",
+  "version": "3.1.5",
   "private": false,
   "description": "flexible task management. TypeScript ready!",
   "main": "dist_ts/index.js",
@@ -29,21 +29,21 @@
   },
   "homepage": "https://gitlab.com/pushrocks/taskbuffer#readme",
   "dependencies": {
-    "@push.rocks/isounique": "^1.0.5",
-    "@push.rocks/lik": "^6.0.0",
+    "@push.rocks/lik": "^6.0.5",
     "@push.rocks/smartdelay": "^3.0.5",
-    "@push.rocks/smartlog": "^3.0.1",
+    "@push.rocks/smartlog": "^3.0.3",
     "@push.rocks/smartpromise": "^4.0.3",
-    "@push.rocks/smartrx": "^3.0.0",
-    "@push.rocks/smarttime": "^4.0.1"
+    "@push.rocks/smartrx": "^3.0.6",
+    "@push.rocks/smarttime": "^4.0.5",
+    "@push.rocks/smartunique": "^3.0.6"
   },
   "devDependencies": {
-    "@gitzone/tsbuild": "^2.1.63",
-    "@gitzone/tsbundle": "^2.0.6",
-    "@gitzone/tsrun": "^1.2.39",
-    "@gitzone/tstest": "^1.0.72",
-    "@push.rocks/tapbundle": "^5.0.4",
-    "@types/node": "^18.11.18"
+    "@gitzone/tsbuild": "^2.1.66",
+    "@gitzone/tsbundle": "^2.0.8",
+    "@gitzone/tsrun": "^1.2.44",
+    "@gitzone/tstest": "^1.0.77",
+    "@push.rocks/tapbundle": "^5.0.15",
+    "@types/node": "^20.5.0"
   },
   "files": [
     "ts/**/*",

test/test.1.task.ts

@@ -1,116 +1,89 @@
 import { expect, tap } from '@push.rocks/tapbundle';
-
 import * as taskbuffer from '../ts/index.js';
-
 import * as smartpromise from '@push.rocks/smartpromise';
 import * as smartdelay from '@push.rocks/smartdelay';
 
-// setup some testData to work with
-let testTask: taskbuffer.Task;
-
-let testPreTask = new taskbuffer.Task({
-  taskFunction: async () => {
-    console.log('preTask executed');
-  },
-  preTask: testTask,
-});
-
-// some more tasks to test with
-let task1Counter = 0; // how often task 1 is being executed
-let task1 = new taskbuffer.Task({
-  name: 'Task 1',
-  taskFunction: () => {
-    let done = smartpromise.defer();
-    console.log('Task1 started');
-    setTimeout(() => {
-      task1Counter++;
-      console.log('Task1 executed');
-      done.resolve();
-    }, 5000);
-    return done.promise;
-  },
-});
-
-let task2 = new taskbuffer.Task({
-  name: 'Task 1',
-  taskFunction: async () => {
-    const done = smartpromise.defer();
-    console.log('Task2 started');
-    setTimeout(() => {
-      console.log('Task2 executed');
-      done.resolve();
-    }, 5000);
-    await done.promise;
-  },
-});
-
-let task3 = new taskbuffer.Task({
-  name: 'Task 3',
-  taskFunction: () => {
-    let done = smartpromise.defer();
-    console.log('Task3 started');
-    setTimeout(() => {
-      console.log('Task3 executed');
-      done.resolve();
-    }, 5000);
-    return done.promise;
-  },
-});
-
 tap.test('new Task() should return a new task', async () => {
-  testTask = new taskbuffer.Task({
+  const testTask = new taskbuffer.Task({
     taskFunction: async () => {
       console.log('executed twice');
     },
-    preTask: testPreTask,
   });
-});
-
-tap.test('expect testTask to be an instance of Task', async () => {
   expect(testTask).toBeInstanceOf(taskbuffer.Task);
 });
 
-tap.test('expect testTask.idle is true', async () => {
-  if (!testTask.idle) {
-    throw new Error('testTask.idle is not true');
-  }
+tap.test('should have bufferMax set to the provided value', async () => {
+  const task2 = new taskbuffer.Task({
+    taskFunction: async () => {},
+  });
+  expect(task2.bufferMax).toBeUndefined();  // test for a task without bufferMax set
+  const bufferedTask = new taskbuffer.Task({
+    taskFunction: async () => {},
+    buffered: true,
+    bufferMax: 3,
+  });
+  expect(bufferedTask.bufferMax).toEqual(3);
 });
 
-tap.test('testTask.running should be of type boolean and initially false', async () => {
-  expect(testTask.running).toBeTypeofBoolean();
-  // tslint:disable-next-line:no-unused-expression
-  expect(testTask.running).toBeFalse();
-});
-
-tap.test('testTask.trigger() should return Promise', async () => {
-  expect(testTask.trigger()).toBeInstanceOf(Promise);
-});
-
-tap.test('testTask.trigger() returned Promise should be fullfilled', async () => {
-  await testTask.trigger();
-});
-
-tap.test('expect to run a task without pre and afterTask errorless', async () => {
-  let localTestTask = new taskbuffer.Task({
-    taskFunction: async () => {
-      console.log('only once');
+tap.test('should be able to trigger tasks multiple times', async () => {
+  let task1Counter = 0; 
+  const task1 = new taskbuffer.Task({
+    name: 'Task 1',
+    taskFunction: () => {
+      let done = smartpromise.defer();
+      console.log('Task1 started');
+      setTimeout(() => {
+        task1Counter++;
+        console.log('Task1 executed');
+        done.resolve();
+      }, 5000);
+      return done.promise;
     },
   });
-  await localTestTask.trigger();
+  await task1.trigger();
+  await task1.trigger();
+  expect(task1Counter).toEqual(2);
 });
 
-tap.test('expect task to run in buffered mode', async () => {
-  let localTestTask = new taskbuffer.Task({
+tap.test('should execute setup function before the task function', async () => {
+  const task2 = new taskbuffer.Task({
+    name: 'Task 2',
+    taskSetup: async () => {
+      console.log('this is the setup function for task 2. It should only run once.')
+      return {
+        nice: 'yes',
+      }
+    },
+    taskFunction: async (before, setupArg) => {
+      expect(setupArg).toEqual({ nice: 'yes' });
+      const done = smartpromise.defer();
+      console.log('Task2 started');
+      setTimeout(() => {
+        console.log('Task2 executed');
+        done.resolve();
+      }, 5000);
+      await done.promise;
+    },
+  });
+  await task2.trigger();
+});
+
+tap.test('should not exceed bufferMax when task is buffered', async () => {
+  let counter = 0;
+  const bufferedTask = new taskbuffer.Task({
     taskFunction: async () => {
-      await smartdelay.delayFor(3000);
+      counter++;
+      await smartdelay.delayFor(2000);
+      counter--;
     },
     buffered: true,
     bufferMax: 2,
   });
-  localTestTask.trigger();
-  localTestTask.trigger();
-  localTestTask.trigger();
-  await localTestTask.trigger();
+  bufferedTask.trigger();
+  bufferedTask.trigger();
+  bufferedTask.trigger();
+  await smartdelay.delayFor(100);
+  expect(counter <= bufferedTask.bufferMax).toBeTrue();
 });
 
 tap.start();

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/taskbuffer',
-  version: '3.0.11',
+  version: '3.1.5',
   description: 'flexible task management. TypeScript ready!'
 }

ts/taskbuffer.classes.bufferrunner.ts

@@ -2,9 +2,10 @@ import { Task } from './taskbuffer.classes.task.js';
 
 export class BufferRunner {
   public task: Task;
-  // initialze by default
+  // initialize by default
   public bufferCounter: number = 0;
-  constructor(taskArg: Task) {
+
+  constructor(taskArg: Task<any>) {
     this.task = taskArg;
   }
 
@@ -13,7 +14,7 @@ export class BufferRunner {
       this.bufferCounter++;
     }
     const returnPromise: Promise<any> = this.task.cycleCounter.getPromiseForCycle(
-      this.bufferCounter + 1
+      this.bufferCounter
     );
     if (!this.task.running) {
       this._run(x);
@@ -21,19 +22,13 @@ export class BufferRunner {
     return returnPromise;
   }
 
-  private _run(x: any) {
-    const recursiveBufferRunner = (x: any) => {
-      if (this.bufferCounter >= 0) {
-        this.task.running = true;
-        Task.runTask(this.task, { x: x }).then((x) => {
-          this.bufferCounter--; // this.bufferCounter drops below 0, the recursion stops.
-          this.task.cycleCounter.informOfCycle(x);
-          recursiveBufferRunner(x);
-        });
-      } else {
-        this.task.running = false;
-      }
-    };
-    recursiveBufferRunner(x);
+  private async _run(x: any) {
+    this.task.running = true;
+    while (this.bufferCounter > 0) {
+      const result = await Task.runTask(this.task, { x: x });
+      this.bufferCounter--;
+      this.task.cycleCounter.informOfCycle(result);
+    }
+    this.task.running = false;
   }
 }

ts/taskbuffer.classes.cyclecounter.ts

@@ -9,7 +9,7 @@ export interface ICycleObject {
 export class CycleCounter {
   public task: Task;
   public cycleObjectArray: ICycleObject[] = [];
-  constructor(taskArg: Task) {
+  constructor(taskArg: Task<any>) {
     this.task = taskArg;
   }
   public getPromiseForCycle(cycleCountArg: number) {

ts/taskbuffer.classes.distributedcoordinator.ts

@@ -2,13 +2,11 @@ import { Task } from './taskbuffer.classes.task.js';
 import * as plugins from './taskbuffer.plugins.js';
 
 /**
- * constains all data for the final coordinator to actually make an informed decision
+ * Contains all data for the final coordinator to make an informed decision.
  */
 export interface IDistributedTaskRequest {
-  /**
-   * this needs to correlate to the consultationResult
-   */
-  submitterRandomId: string;
+  submitterId: string;
+  requestResponseId: string;
   taskName: string;
   taskVersion: string;
   taskExecutionTime: number;
@@ -18,24 +16,23 @@ export interface IDistributedTaskRequest {
 }
 
 export interface IDistributedTaskRequestResult {
-  /**
-   * this needs to correlate to the decisionInfoBasis
-   */
-  submitterRandomId: string;
-  /**
-   * can be used while debugging
-   */
+  submitterId: string;
+  requestResponseId: string;
   considered: boolean;
-  rank: string;
+  rank: number;
   reason: string;
   shouldTrigger: boolean;
 }
 
 export abstract class AbstractDistributedCoordinator {
   public abstract fireDistributedTaskRequest(
-    infoBasisArg: IDistributedTaskRequest
+    infoBasis: IDistributedTaskRequest
   ): Promise<IDistributedTaskRequestResult>;
+
   public abstract updateDistributedTaskRequest(
-    infoBasisArg: IDistributedTaskRequest
+    infoBasis: IDistributedTaskRequest
   ): Promise<void>;
+
+  public abstract start(): Promise<void>;
+  public abstract stop(): Promise<void>;
 }

ts/taskbuffer.classes.task.ts

@@ -4,20 +4,25 @@ import { CycleCounter } from './taskbuffer.classes.cyclecounter.js';
 
 import { logger } from './taskbuffer.logging.js';
 
-export interface ITaskFunction {
-  (x?: any): PromiseLike<any>;
+export interface ITaskFunction<T = undefined> {
+  (x?: any, setupValue?: T): PromiseLike<any>;
 }
 
-export type TPreOrAfterTaskFunction = () => Task;
+export interface ITaskSetupFunction<T = undefined> {
+  (): Promise<T>;
+}
 
-export class Task {
-  // STATIC
-  public static extractTask(preOrAfterTaskArg: Task | TPreOrAfterTaskFunction): Task {
+export type TPreOrAfterTaskFunction = () => Task<any>;
+
+export class Task<T = undefined> {
+  public static extractTask<T = undefined>(
+    preOrAfterTaskArg: Task<T> | TPreOrAfterTaskFunction
+  ): Task<T> {
     switch (true) {
       case !preOrAfterTaskArg:
         return null;
       case preOrAfterTaskArg instanceof Task:
-        return preOrAfterTaskArg as Task;
+        return preOrAfterTaskArg as Task<T>;
       case typeof preOrAfterTaskArg === 'function':
         const taskFunction = preOrAfterTaskArg as TPreOrAfterTaskFunction;
         return taskFunction();
@@ -32,7 +37,7 @@ export class Task {
     return done.promise;
   };
 
-  public static isTask = (taskArg: Task): boolean => {
+  public static isTask = (taskArg: Task<any>): boolean => {
     if (taskArg instanceof Task && typeof taskArg.taskFunction === 'function') {
       return true;
     } else {
@@ -40,10 +45,10 @@ export class Task {
     }
   };
 
-  public static isTaskTouched = (
-    taskArg: Task | TPreOrAfterTaskFunction,
-    touchedTasksArray: Task[]
-  ): boolean => {
+  public static isTaskTouched<T = undefined>(
+    taskArg: Task<T> | TPreOrAfterTaskFunction,
+    touchedTasksArray: Task<T>[]
+  ): boolean {
     const taskToCheck = Task.extractTask(taskArg);
     let result = false;
     for (const keyArg in touchedTasksArray) {
@@ -52,44 +57,54 @@ export class Task {
       }
     }
     return result;
-  };
+  }
 
-  public static runTask = async (
-    taskArg: Task | TPreOrAfterTaskFunction,
-    optionsArg: { x?: any; touchedTasksArray?: Task[] }
+  public static runTask = async <T>(
+    taskArg: Task<T> | TPreOrAfterTaskFunction,
+    optionsArg: { x?: any; touchedTasksArray?: Task<T>[] }
   ) => {
-    // extracts the task in case it is specified as a return value of a function
     const taskToRun = Task.extractTask(taskArg);
     const done = plugins.smartpromise.defer();
 
-    // pay respect to execDelay
+    // Wait for all blocking tasks to finish
+    for (const task of taskToRun.blockingTasks) {
+      await task.finished;
+    }
+
+    if (!taskToRun.setupValue && taskToRun.taskSetup) {
+      taskToRun.setupValue = await taskToRun.taskSetup();
+    }
+
     if (taskToRun.execDelay) {
       await plugins.smartdelay.delayFor(taskToRun.execDelay);
     }
 
-    //  set running params
     taskToRun.running = true;
 
     done.promise.then(async () => {
       taskToRun.running = false;
+
+      // When the task has finished running, resolve the finished promise
+      taskToRun.resolveFinished();
+
+      // Create a new finished promise for the next run
+      taskToRun.finished = new Promise((resolve) => {
+        taskToRun.resolveFinished = resolve;
+      });
     });
 
-    // handle options
     const options = {
       ...{ x: undefined, touchedTasksArray: [] },
       ...optionsArg,
     };
     const x = options.x;
-    const touchedTasksArray: Task[] = options.touchedTasksArray;
+    const touchedTasksArray: Task<T>[] = options.touchedTasksArray;
 
     touchedTasksArray.push(taskToRun);
 
-    // run the task cascade
     const localDeferred = plugins.smartpromise.defer();
     localDeferred.promise
       .then(() => {
-        // lets run any preTask
-
         if (taskToRun.preTask && !Task.isTaskTouched(taskToRun.preTask, touchedTasksArray)) {
           return Task.runTask(taskToRun.preTask, { x, touchedTasksArray });
         } else {
@@ -99,9 +114,8 @@ export class Task {
         }
       })
       .then(async (x) => {
-        // lets run the main task
         try {
-          return await taskToRun.taskFunction(x);
+          return await taskToRun.taskFunction(x, taskToRun.setupValue);
         } catch (e) {
           console.log(e);
         }
@@ -125,16 +139,9 @@ export class Task {
     return await done.promise;
   };
 
-  // INSTANCE
-  // mandatory properties
   public name: string;
-  /**
-   * the version of the task
-   * should follow semver
-   * might be important for DistributedCoordinator
-   */
   public version: string;
-  public taskFunction: ITaskFunction;
+  public taskFunction: ITaskFunction<T>;
   public buffered: boolean;
   public cronJob: plugins.smarttime.CronJob;
 
@@ -142,62 +149,52 @@ export class Task {
   public execDelay: number;
   public timeout: number;
 
-  // tasks to run before and after
-  public preTask: Task | TPreOrAfterTaskFunction;
-  public afterTask: Task | TPreOrAfterTaskFunction;
+  public preTask: Task<T> | TPreOrAfterTaskFunction;
+  public afterTask: Task<T> | TPreOrAfterTaskFunction;
+
+  // Add a list to store the blocking tasks
+  public blockingTasks: Task[] = [];
+
+  // Add a promise that will resolve when the task has finished
+  private finished: Promise<void>;
+  private resolveFinished: () => void;
 
-  // initialize by default
   public running: boolean = false;
   public bufferRunner = new BufferRunner(this);
   public cycleCounter = new CycleCounter(this);
 
-  public idle: boolean = true;
-  private _state: string = 'ready';
+  public get idle() {
+    return !this.running;
+  }
+
+  public taskSetup: ITaskSetupFunction<T>;
+  public setupValue: T;
 
   constructor(optionsArg: {
-    /**
-     * the task function to run, must return promise
-     */
-    taskFunction: ITaskFunction;
-    /**
-     * any other task to run before
-     */
-    preTask?: Task | TPreOrAfterTaskFunction;
-    /**
-     * any other task to run after
-     */
-    afterTask?: Task | TPreOrAfterTaskFunction;
-    /**
-     * wether this task should run buffered
-     */
+    taskFunction: ITaskFunction<T>;
+    preTask?: Task<T> | TPreOrAfterTaskFunction;
+    afterTask?: Task<T> | TPreOrAfterTaskFunction;
     buffered?: boolean;
-    /**
-     * the maximum buffer
-     */
     bufferMax?: number;
-    /**
-     * the execution delay, before the task is executed
-     * only makes sense when running in buffered mode
-     */
     execDelay?: number;
-    /**
-     * the name of the task
-     */
     name?: string;
+    taskSetup?: ITaskSetupFunction<T>;
   }) {
     this.taskFunction = optionsArg.taskFunction;
     this.preTask = optionsArg.preTask;
     this.afterTask = optionsArg.afterTask;
-    this.idle = !this.running;
     this.buffered = optionsArg.buffered;
     this.bufferMax = optionsArg.bufferMax;
     this.execDelay = optionsArg.execDelay;
     this.name = optionsArg.name;
+    this.taskSetup = optionsArg.taskSetup;
+
+    // Create the finished promise
+    this.finished = new Promise((resolve) => {
+      this.resolveFinished = resolve;
+    });
   }
 
-  /**
-   * trigger the task. Will trigger buffered if this.buffered is true
-   */
   public trigger(x?: any): Promise<any> {
     if (this.buffered) {
       return this.triggerBuffered(x);
@@ -206,31 +203,11 @@ export class Task {
     }
   }
 
-  /**
-   * trigger task unbuffered.
-   * will actually run the task, not considering any buffered limits.
-   */
   public triggerUnBuffered(x?: any): Promise<any> {
-    return Task.runTask(this, { x: x });
+    return Task.runTask<T>(this, { x: x });
   }
 
-  /**
-   * trigger task buffered.
-   * note: .trigger() also calls this function
-   */
   public triggerBuffered(x?: any): Promise<any> {
     return this.bufferRunner.trigger(x);
   }
-
-  get state(): string {
-    return this._state;
-  }
-
-  set state(stateArg: string) {
-    if (stateArg === 'locked') {
-      this._state = 'locked';
-    } else {
-      logger.log('error', `state type ${stateArg} could not be set`);
-    }
-  }
 }

ts/taskbuffer.classes.taskdebounced.ts

@@ -1,6 +1,6 @@
 import * as plugins from './taskbuffer.plugins.js';
 
-import { Task, ITaskFunction } from './taskbuffer.classes.task.js';
+import { Task, type ITaskFunction } from './taskbuffer.classes.task.js';
 
 export class TaskDebounced<T = unknown> extends Task {
   private _debouncedTaskFunction: ITaskFunction;

ts/taskbuffer.classes.taskmanager.ts

@@ -1,10 +1,10 @@
 import * as plugins from './taskbuffer.plugins.js';
 import { Task } from './taskbuffer.classes.task.js';
-import { AbstractDistributedCoordinator } from './taskbuffer.classes.distributedcoordinator.js';
+import { AbstractDistributedCoordinator, type IDistributedTaskRequestResult } from './taskbuffer.classes.distributedcoordinator.js';
 
 export interface ICronJob {
   cronString: string;
-  taskNameArg: string;
+  taskName: string;
   job: any;
 }
 
@@ -13,57 +13,37 @@ export interface ITaskManagerConstructorOptions {
 }
 
 export class TaskManager {
-  public randomId = plugins.isounique.uni();
+  public randomId = plugins.smartunique.shortId();
   public taskMap = new plugins.lik.ObjectMap<Task>();
   private cronJobManager = new plugins.smarttime.CronManager();
-
   public options: ITaskManagerConstructorOptions = {
     distributedCoordinator: null,
   };
 
-  constructor(optionosArg: ITaskManagerConstructorOptions = {}) {
-    this.options = Object.assign(this.options, optionosArg);
+  constructor(options: ITaskManagerConstructorOptions = {}) {
+    this.options = Object.assign(this.options, options);
   }
 
-  /**
-   * checks if a task is already present
-   * @param taskNameArg
-   */
-  public getTaskByName(taskNameArg: string): Task {
-    return this.taskMap.findSync((itemArg) => {
-      return itemArg.name === taskNameArg;
-    });
+  public getTaskByName(taskName: string): Task {
+    return this.taskMap.findSync((task) => task.name === taskName);
   }
 
-  /**
-   * adds a Task to the TaskManager
-   * @param taskArg
-   */
-  public addTask(taskArg: Task): void {
-    if (!taskArg.name) {
-      throw new Error('taskArg needs a name to be added to taskManager');
+  public addTask(task: Task): void {
+    if (!task.name) {
+      throw new Error('Task must have a name to be added to taskManager');
     }
-    this.taskMap.add(taskArg);
+    this.taskMap.add(task);
   }
 
-  /**
-   * adds and schedules a task at once
-   * @param taskArg
-   * @param cronStringArg
-   */
-  public addAndScheduleTask(taskArg: Task, cronStringArg: string) {
-    this.addTask(taskArg);
-    this.scheduleTaskByName(taskArg.name, cronStringArg);
+  public addAndScheduleTask(task: Task, cronString: string) {
+    this.addTask(task);
+    this.scheduleTaskByName(task.name, cronString);
   }
 
-  /**
-   * triggers a task in the TaskManagerByName
-   * @param taskNameArg
-   */
-  public triggerTaskByName(taskNameArg: string): Promise<any> {
-    const taskToTrigger = this.getTaskByName(taskNameArg);
+  public async triggerTaskByName(taskName: string): Promise<any> {
+    const taskToTrigger = this.getTaskByName(taskName);
     if (!taskToTrigger) {
-      throw new Error(`There is no task with the name of ${taskNameArg}`);
+      throw new Error(`No task with the name ${taskName} found.`);
     }
     return taskToTrigger.trigger();
   }
@@ -72,88 +52,88 @@ export class TaskManager {
     return task.trigger();
   }
 
-  /**
-   * schedules the task by name
-   * @param taskNameArg
-   */
-  public scheduleTaskByName(taskNameArg: string, cronStringArg: string) {
-    const taskToSchedule = this.getTaskByName(taskNameArg);
-    const cronJob = this.cronJobManager.addCronjob(
-      cronStringArg,
-      async (triggerTimeArg: number) => {
-        console.log(`taskbuffer schedule triggered task >>${taskToSchedule.name}<<`);
-        console.log(
-          `task >>${taskToSchedule.name}<< is ${
-            taskToSchedule.buffered
-              ? `buffered with max ${taskToSchedule.bufferMax} buffered calls`
-              : `unbuffered`
-          }`
-        );
-        if (this.options.distributedCoordinator) {
-          console.log(`Found a distrubuted coordinator, performing distributed consultation.`);
-          const announcementResult =
-            await this.options.distributedCoordinator.fireDistributedTaskRequest({
-              submitterRandomId: this.randomId,
-              status: 'requesting',
-              taskExecutionParallel: 1,
-              taskExecutionTime: triggerTimeArg,
-              taskExecutionTimeout: taskToSchedule.timeout,
-              taskName: taskToSchedule.name,
-              taskVersion: taskToSchedule.version,
-            });
-
-          if (!announcementResult.shouldTrigger) {
-            console.log('distributed coordinator result: NOT EXECUTING');
-            return;
-          } else {
-            console.log('distributed coordinator result: CHOSEN AND EXECUTING');
-          }
-        }
-        await taskToSchedule.trigger();
-      }
-    );
-    taskToSchedule.cronJob = cronJob;
+  public scheduleTaskByName(taskName: string, cronString: string) {
+    const taskToSchedule = this.getTaskByName(taskName);
+    if (!taskToSchedule) {
+      throw new Error(`No task with the name ${taskName} found.`);
+    }
+    this.handleTaskScheduling(taskToSchedule, cronString);
   }
 
-  /**
-   * deschedules a task by name
-   * @param taskNameArg
-   */
-  public descheduleTaskByName(taskNameArg: string) {
-    const taskToDeSchedule = this.getTaskByName(taskNameArg);
-    if (taskToDeSchedule.cronJob) {
-      this.cronJobManager.removeCronjob(taskToDeSchedule.cronJob);
-      taskToDeSchedule.cronJob = null;
+  private handleTaskScheduling(task: Task, cronString: string) {
+    const cronJob = this.cronJobManager.addCronjob(
+      cronString,
+      async (triggerTime: number) => {
+        this.logTaskState(task);
+        if (this.options.distributedCoordinator) {
+          const announcementResult = await this.performDistributedConsultation(task, triggerTime);
+          if (!announcementResult.shouldTrigger) {
+            console.log('Distributed coordinator result: NOT EXECUTING');
+            return;
+          } else {
+            console.log('Distributed coordinator result: CHOSEN AND EXECUTING');
+          }
+        }
+        await task.trigger();
+      }
+    );
+    task.cronJob = cronJob;
+  }
+
+  private logTaskState(task: Task) {
+    console.log(`Taskbuffer schedule triggered task >>${task.name}<<`);
+    const bufferState = task.buffered
+      ? `buffered with max ${task.bufferMax} buffered calls`
+      : `unbuffered`;
+    console.log(`Task >>${task.name}<< is ${bufferState}`);
+  }
+
+  private async performDistributedConsultation(task: Task, triggerTime: number): Promise<IDistributedTaskRequestResult> {
+    console.log('Found a distributed coordinator, performing consultation.');
+
+    return this.options.distributedCoordinator.fireDistributedTaskRequest({
+      submitterId: this.randomId,
+      requestResponseId: plugins.smartunique.shortId(),
+      status: 'requesting',
+      taskExecutionParallel: 1,
+      taskExecutionTime: triggerTime,
+      taskExecutionTimeout: task.timeout,
+      taskName: task.name,
+      taskVersion: task.version,
+    });
+  }
+
+  public descheduleTaskByName(taskName: string) {
+    const task = this.getTaskByName(taskName);
+    if (task && task.cronJob) {
+      this.cronJobManager.removeCronjob(task.cronJob);
+      task.cronJob = null;
     }
     if (this.cronJobManager.cronjobs.isEmpty) {
       this.cronJobManager.stop();
     }
   }
 
-  /**
-   * deschedules a task
-   * @param task
-   */
   public async descheduleTask(task: Task) {
     await this.descheduleTaskByName(task.name);
   }
-  /**
-   * returns all schedules of a specific task
-   * @param taskNameArg
-   */
-  public getSchedulesForTaskName(taskNameArg: string) {}
 
-  /**
-   * starts the taskmanager
-   */
-  public start() {
+  public getScheduleForTaskName(taskName: string): string | null {
+    const task = this.getTaskByName(taskName);
+    return task && task.cronJob ? task.cronJob.cronExpression : null;
+  }
+
+  public async start() {
+    if (this.options.distributedCoordinator) {
+      await this.options.distributedCoordinator.start();
+    }
     this.cronJobManager.start();
   }
 
-  /**
-   * stops the taskmanager
-   */
-  public stop() {
+  public async stop() {
     this.cronJobManager.stop();
+    if (this.options.distributedCoordinator) {
+      await this.options.distributedCoordinator.stop();
+    }
   }
 }

ts/taskbuffer.classes.taskonce.ts

@@ -1,6 +1,6 @@
 import * as plugins from './taskbuffer.plugins.js';
 
-import { Task, ITaskFunction } from './taskbuffer.classes.task.js';
+import { Task, type ITaskFunction } from './taskbuffer.classes.task.js';
 
 /**
  * TaskOnce is run exactly once, no matter how often it is triggered

ts/taskbuffer.plugins.ts

@@ -1,9 +1,9 @@
-import * as isounique from '@push.rocks/isounique';
 import * as lik from '@push.rocks/lik';
 import * as smartlog from '@push.rocks/smartlog';
 import * as smartpromise from '@push.rocks/smartpromise';
 import * as smartdelay from '@push.rocks/smartdelay';
 import * as smartrx from '@push.rocks/smartrx';
 import * as smarttime from '@push.rocks/smarttime';
+import * as smartunique from '@push.rocks/smartunique';
 
-export { isounique, lik, smartlog, smartpromise, smartdelay, smartrx, smarttime };
+export { lik, smartlog, smartpromise, smartdelay, smartrx, smarttime, smartunique };

tsconfig.json

@@ -5,6 +5,7 @@
     "target": "ES2022",
     "module": "ES2022",
     "moduleResolution": "nodenext",
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "verbatimModuleSyntax": true,
   }
 }