import { Injectable } from '@angular/core'
import { Validators } from '@angular/forms'
import { BuildFormValidator } from './form-validator.service'

@Injectable()
export class VideoChannelValidatorsService {
  readonly VIDEO_CHANNEL_NAME: BuildFormValidator
  readonly VIDEO_CHANNEL_DISPLAY_NAME: BuildFormValidator
  readonly VIDEO_CHANNEL_DESCRIPTION: BuildFormValidator
  readonly VIDEO_CHANNEL_SUPPORT: BuildFormValidator

  constructor () {
    this.VIDEO_CHANNEL_NAME = {
      VALIDATORS: [
        Validators.required,
        Validators.minLength(1),
        Validators.maxLength(50),
        Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
      ],
      MESSAGES: {
        'required': $localize`Name is required.`,
        'minlength': $localize`Name must be at least 1 character long.`,
        'maxlength': $localize`Name cannot be more than 50 characters long.`,
        'pattern': $localize`Name should be lowercase alphanumeric; dots and underscores are allowed.`
      }
    }

    this.VIDEO_CHANNEL_DISPLAY_NAME = {
      VALIDATORS: [
        Validators.required,
        Validators.minLength(1),
        Validators.maxLength(50)
      ],
      MESSAGES: {
        'required': $localize`Display name is required.`,
        'minlength': $localize`Display name must be at least 1 character long.`,
        'maxlength': $localize`Display name cannot be more than 50 characters long.`
      }
    }

    this.VIDEO_CHANNEL_DESCRIPTION = {
      VALIDATORS: [
        Validators.minLength(3),
        Validators.maxLength(1000)
      ],
      MESSAGES: {
        'minlength': $localize`Description must be at least 3 characters long.`,
        'maxlength': $localize`Description cannot be more than 1000 characters long.`
      }
    }

    this.VIDEO_CHANNEL_SUPPORT = {
      VALIDATORS: [
        Validators.minLength(3),
        Validators.maxLength(1000)
      ],
      MESSAGES: {
        'minlength': $localize`Support text must be at least 3 characters long.`,
        'maxlength': $localize`Support text cannot be more than 1000 characters long`
      }
    }
  }
}