import { ApiPropertyOptional } from '@nestjs/swagger';
import {
  IsBoolean,
  IsOptional,
  IsString,
  Matches,
  MaxLength,
} from 'class-validator';
import { IsOptionalNotNull } from '../../common/validation/is-optional-not-null';

const GROUP_ID_PATTERN =
  /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})?$/i;

// PATCH null rule: an omitted field stays unchanged. The switches are NOT
// NULL columns, so null on them is a 400. groupId is nullable: null clears
// it, and so does "" - the GUI's way of emptying the field.
export class UpdateCalendarSyncSettingsDto {
  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  enabled?: boolean;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    description:
      'Objekt-ID der Microsoft-365-Gruppe. Leerer String oder null löscht den GUI-Wert.',
  })
  @IsOptional()
  @IsString()
  @MaxLength(100)
  // An Entra object id (GUID) or "" - the value goes into the Graph URL
  // path, so nothing else may get through.
  @Matches(GROUP_ID_PATTERN, {
    message:
      'Gruppen-ID muss die Objekt-ID der Microsoft-365-Gruppe sein (Format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)',
  })
  groupId?: string | null;

  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  syncTask?: boolean;

  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  syncInspection?: boolean;

  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  syncTreatment?: boolean;

  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  syncFeeding?: boolean;

  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  syncHarvest?: boolean;

  @ApiPropertyOptional()
  @IsOptionalNotNull()
  @IsBoolean()
  syncQueenAssignment?: boolean;
}