import { Type } from 'class-transformer';
import {
  IsBoolean,
  IsIn,
  IsInt,
  IsObject,
  IsOptional,
  IsString,
  MaxLength,
  Min,
  MinLength,
  ValidateIf,
} from 'class-validator';

const TRIGGERS = [
  'person_created',
  'lead_submitted',
  'deal_created',
  'deal_stage_changed',
  'deal_won',
  'deal_lost',
  'ticket_created',
  'ticket_resolved',
  'invoice_issued',
  'invoice_paid',
  'activity_done',
  'sms_link_clicked',
] as const;
const ACTIONS = [
  'create_activity',
  'create_notification',
  'add_loyalty_points',
] as const;

export class CreateAutomationRuleDto {
  @IsString()
  @MinLength(2)
  @MaxLength(120)
  name!: string;

  @IsIn(TRIGGERS)
  trigger!: (typeof TRIGGERS)[number];

  @IsIn(ACTIONS)
  action!: (typeof ACTIONS)[number];

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

  @IsOptional()
  @IsObject()
  config?: Record<string, unknown>;
}

export class UpdateAutomationRuleDto {
  @IsOptional()
  @IsString()
  @MinLength(2)
  @MaxLength(120)
  name?: string;

  @IsOptional()
  @IsIn(TRIGGERS)
  trigger?: (typeof TRIGGERS)[number];

  @IsOptional()
  @IsIn(ACTIONS)
  action?: (typeof ACTIONS)[number];

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

  @IsOptional()
  @IsObject()
  config?: Record<string, unknown>;
}

export class AutomationConfigDto {
  @IsOptional()
  @IsString()
  @MaxLength(200)
  title?: string;

  @IsOptional()
  @IsString()
  @MaxLength(1000)
  body?: string;

  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @IsString()
  assigneeId?: string | null;

  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @IsString()
  notifyUserId?: string | null;

  @IsOptional()
  @IsIn(['call', 'meeting', 'task', 'note'])
  activityType?: string;

  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  points?: number;
}