import {
  IsNotEmpty,
  IsString,
  IsNumber,
  IsOptional,
  IsBoolean,
  IsObject,
  IsArray,
  ValidateNested,
  IsDateString,
  Matches,
  Min,
  Max,
} from 'class-validator';
import { Type } from 'class-transformer';

/**
 * DTO for retry configuration
 */
export class RetryConfigDto {
  @IsNumber()
  @Min(0)
  @Max(10)
  maxRetries: number;

  @IsNumber()
  @Min(1000)
  retryDelay: number;

  @IsNumber()
  @Min(1)
  @Max(10)
  backoffMultiplier: number;
}

/**
 * DTO for workflow action configuration
 */
export class WorkflowActionDto {
  @IsString()
  @IsNotEmpty()
  actionType: string;

  @IsObject()
  @IsNotEmpty()
  actionConfig: Record<string, any>;

  @IsString()
  @IsOptional()
  targetEntityType?: string;

  @IsObject()
  @IsOptional()
  filterCriteria?: Record<string, any>;
}

/**
 * DTO for creating a scheduled workflow
 */
export class CreateScheduleDto {
  @IsNumber()
  @IsNotEmpty()
  workflow_id: number;

  @IsString()
  @IsOptional()
  workflow_name?: string;

  @IsString()
  @IsNotEmpty()
  name: string;

  @IsString()
  @IsOptional()
  description?: string;

  @IsString()
  @IsNotEmpty()
  @Matches(
    /^(\*|([0-5]?\d)) (\*|([01]?\d|2[0-3])) (\*|([01]?\d|2\d|3[01])) (\*|([1-9]|1[0-2])) (\*|([0-6]))$/,
    {
      message:
        'Invalid cron expression format. Expected format: "minute hour day month weekday"',
    },
  )
  cron_expression: string;

  @IsString()
  @IsNotEmpty()
  timezone: string;

  @IsDateString()
  @IsOptional()
  start_date?: string;

  @IsDateString()
  @IsOptional()
  end_date?: string;

  @IsNumber()
  @IsOptional()
  @Min(1)
  max_executions?: number;

  @ValidateNested()
  @Type(() => RetryConfigDto)
  @IsOptional()
  retry_config?: RetryConfigDto;

  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => WorkflowActionDto)
  @IsOptional()
  actions?: WorkflowActionDto[];

  @IsObject()
  @IsOptional()
  metadata?: Record<string, any>;

  @IsBoolean()
  @IsOptional()
  is_enabled?: boolean;

  @IsNumber()
  @IsOptional()
  organization_id?: number;

  @IsNumber()
  @IsOptional()
  enterprise_id?: number;

  @IsString()
  @IsOptional()
  level_id?: string;

  @IsString()
  @IsOptional()
  level_type?: string;

  @IsString()
  @IsOptional()
  appcode?: string;

  @IsString()
  @IsOptional()
  status?: string;
}