import { SmtpValue } from '../../types'
import { GetSystemSmtp, Patterns } from '../../util'
import { InputSpec, InputSpecOf } from './builder/inputSpec'
import { Value } from './builder/value'
import { Variants } from './builder/variants'

/**
 * Base SMTP settings, to be used by StartOS for system wide SMTP
 */
export const customSmtp: InputSpec<SmtpValue> = InputSpec.of<
  InputSpecOf<SmtpValue>
>({
  server: Value.text({
    name: 'SMTP Server',
    required: true,
    default: null,
  }),
  port: Value.number({
    name: 'Port',
    required: true,
    default: 587,
    min: 1,
    max: 65535,
    integer: true,
  }),
  from: Value.text({
    name: 'From Address',
    required: true,
    default: null,
    placeholder: 'Example Name <test@example.com>',
    inputmode: 'email',
    patterns: [Patterns.emailWithName],
  }),
  login: Value.text({
    name: 'Login',
    required: true,
    default: null,
  }),
  password: Value.text({
    name: 'Password',
    required: false,
    default: null,
    masked: true,
  }),
})

const smtpVariants = Variants.of({
  disabled: { name: 'Disabled', spec: InputSpec.of({}) },
  system: {
    name: 'System Credentials',
    spec: InputSpec.of({
      customFrom: Value.text({
        name: 'Custom From Address',
        description:
          'A custom from address for this service. If not provided, the system from address will be used.',
        required: false,
        default: null,
        placeholder: '<name>test@example.com',
        inputmode: 'email',
        patterns: [Patterns.email],
      }),
    }),
  },
  custom: {
    name: 'Custom Credentials',
    spec: customSmtp,
  },
})
/**
 * For service inputSpec. Gives users 3 options for SMTP: (1) disabled, (2) use system SMTP settings, (3) use custom SMTP settings
 */
export const smtpInputSpec = Value.dynamicUnion(async ({ effects }) => {
  const smtp = await new GetSystemSmtp(effects).once()
  const disabled = smtp ? [] : ['system']
  return {
    name: 'SMTP',
    description: 'Optionally provide an SMTP server for sending emails',
    default: 'disabled',
    disabled,
    variants: smtpVariants,
  }
}, smtpVariants.validator)