import { Injectable } from '@angular/core'
import { NgbDateAdapter, NgbDateStruct } from '@ng-bootstrap/ng-bootstrap'

@Injectable()
export class ISODateTimeAdapter extends NgbDateAdapter<string> {
  fromModel(value: string | null): NgbDateStruct | null {
    if (value) {
      let date = new Date(value)
      return {
        day: date.getDate(),
        month: date.getMonth() + 1,
        year: date.getFullYear(),
      }
    } else {
      return null
    }
  }

  toModel(date: NgbDateStruct | null): string | null {
    return date
      ? new Date(date.year, date.month - 1, date.day).toISOString()
      : null
  }
}