implement TaskManager

ts/taskbuffer.classes.taskmanager.ts

@@ -1 +1,89 @@
 import * as plugins from './taskbuffer.plugins'
+import { Task } from './taskbuffer.classes.task'
+
+// interfaces
+import { Objectmap } from 'lik'
+
+export class TaskManager {
+  taskMap = new plugins.lik.Objectmap<Task>()
+  private cronJobArray: ICronJob[] = []
+  constructor () {
+    // nothing here
+  }
+
+  /**
+   * checks if a task is already present
+   * @param taskNameArg
+   */
+  getTaskByName (taskNameArg): Task {
+    return this.taskMap.find((itemArg) => {
+      return itemArg.name === taskNameArg
+    })
+  }
+
+  /**
+   * adds a Task to the TaskManager
+   * @param taskArg
+   */
+  addTask (taskArg: Task): void {
+    if (!taskArg.name) {
+      throw new Error('taskArg needs a name to be added to taskManager')
+    }
+    this.taskMap.add(taskArg)
+  }
+
+  /**
+   * adds and schedules a task at once
+   * @param taskArg
+   * @param cronStringArg
+   */
+  addAndScheduleTask (taskArg: Task, cronStringArg: string) {
+    this.addTask(taskArg)
+    let taskName = taskArg.name
+    this.scheduleTaskByName(taskName, cronStringArg)
+  }
+
+  /**
+   * triggers a task in the TaskManagerByName
+   * @param taskNameArg
+   */
+  triggerTaskByName (taskNameArg: string) {
+    let taskToTrigger = this.getTaskByName(taskNameArg)
+    if (!taskToTrigger) {
+      throw new Error(`There is no task with the name of ${taskNameArg}`)
+    }
+    taskToTrigger.trigger()
+  }
+
+  /**
+   * schedules the task by name
+   * @param taskNameArg
+   */
+  scheduleTaskByName (taskNameArg: string, cronStringArg: string) {
+    let taskToSchedule = this.getTaskByName(taskNameArg)
+    let job = new plugins.cron.CronJob({
+      cronTime: cronStringArg,
+      onTick: taskToSchedule.trigger,
+      start: true
+    })
+    this.cronJobArray.push({
+      taskNameArg: taskToSchedule.name,
+      cronString: cronStringArg,
+      job: job
+    })
+  }
+
+  /**
+   * returns all schedules of a specific task
+   * @param taskNameArg
+   */
+  getSchedulesForTaskName (taskNameArg: string) {
+
+  }
+}
+
+export interface ICronJob {
+  cronString: string
+  taskNameArg: string
+  job: any
+}