import {Component, Inject, OnInit} from '@angular/core';
import {MAT_DIALOG_DATA, MatDialogRef} from "@angular/material/dialog";
import {TaskEntityInfo, TaskRepeatDayInfo, TaskRepeatWeekDayInfo, TaskseriesService} from "../../../api";
import * as moment from "moment";
import {FormArray, FormBuilder, FormGroup, Validators} from "@angular/forms";
import DeadlineStrategyEnum = TaskRepeatDayInfo.DeadlineStrategyEnum;


@Component({
  selector: 'app-task-weekly-series-creator',
  templateUrl: './task-weekly-series-creator.component.html',
  styleUrls: ['./task-weekly-series-creator.component.css']
})
export class TaskWeeklySeriesCreatorComponent implements OnInit{

  repeatingOffsetForm: FormGroup | undefined
  availableDeadlineStrategys: DeadlineStrategyEnum[] = ["DEADLINE_EQUAL_START", "DEADLINE_FIT_START"]

  constructor(private dialogRef: MatDialogRef<TaskWeeklySeriesCreatorComponent>,
              private taskRepeatingService: TaskseriesService,
              @Inject(MAT_DIALOG_DATA) public tasks: TaskEntityInfo[],
              private formbuilder: FormBuilder) {
  }

  ngOnInit(): void {
    this.repeatingOffsetForm = this.formbuilder.group({
      offsets: this.formbuilder.array(this.tasks.map(task => this.formbuilder.group({
        offsetCtrl: ['', [Validators.required, Validators.min(1)]]
      }))),
      deadlineStrategyCtrl: ['', Validators.required],
      endingDateCtrl: ['', Validators.required]

    })
  }



  getDayOfWeek(date: string) {
    return moment(date).format("dddd")
  }

  formatDate(date: string): string {
    return moment(date).format("dd, DD. MMMM YYYY")
  }

  removeTaskFromRepeatingList(task: TaskEntityInfo, formIndex: number) {
    this.tasks = this.tasks.filter(t => t.taskID !== task.taskID);
    this.deleteOffset(formIndex)
  }

  get offsets() {
    return this.repeatingOffsetForm!.controls["offsets"] as FormArray
  }

  deleteOffset(taskIndex: number) {
    this.offsets.removeAt(taskIndex);
  }

  saveRepeatingTask() {
    const weekDayInfos: TaskRepeatWeekDayInfo[] = []
    const formArrayValues: {offsetCtrl: string}[] = this.offsets.value
    for(let i=0; i<formArrayValues.length; i++) {
      weekDayInfos.push({
        taskID: this.tasks[i].taskID,
        offset: Number(formArrayValues[i].offsetCtrl) * 7
      })
    }

    this.taskRepeatingService.tasksTaskseriesWeeklyPost({
      deadlineStrategy: this.repeatingOffsetForm!.controls['deadlineStrategyCtrl']!.value!,
      endDate: moment(this.repeatingOffsetForm!.controls['endingDateCtrl']!.value!).format('YYYY-MM-DDTHH:mm:ss.SSSZ'),
      weekDayInfos: weekDayInfos
    }).subscribe({
      next: resp => {
        this.dialogRef.close(true)
      }
    })
  }

  cancel() {
    this.dialogRef.close(false);
  }
}