import { Type } from 'class-transformer';
import {
  IsArray,
  IsBoolean,
  IsDateString,
  IsNumber,
  IsObject,
  IsOptional,
  IsString,
  MaxLength,
  Min,
  MinLength,
  ValidateIf,
  ValidateNested,
} from 'class-validator';

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

export class DealLineItemInputDto {
  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @IsString()
  productId?: string | null;

  @IsString()
  @MinLength(1)
  @MaxLength(200)
  name!: string;

  @Type(() => Number)
  @IsNumber()
  @Min(0.01)
  quantity!: number;

  @Type(() => Number)
  @IsNumber()
  @Min(0)
  unitPrice!: number;

  @IsOptional()
  @IsString()
  @MaxLength(8)
  currency?: string;
}

export class CreateDealDto {
  @IsString()
  @MinLength(2)
  @MaxLength(200)
  title!: string;

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

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

  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @Type(() => Number)
  @IsNumber()
  @Min(0)
  amount?: number | null;

  @IsOptional()
  @IsString()
  @MaxLength(8)
  currency?: string;

  @IsOptional()
  @IsString()
  @MaxLength(120)
  source?: string;

  @IsOptional()
  @IsString()
  @MaxLength(2000)
  notes?: string;

  @IsOptional()
  @IsArray()
  @IsString({ each: true })
  tags?: string[];

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

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

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

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

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

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

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

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

export class UpdateDealDto {
  @IsOptional()
  @IsString()
  @MinLength(2)
  @MaxLength(200)
  title?: string;

  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @Type(() => Number)
  @IsNumber()
  @Min(0)
  amount?: number | null;

  @IsOptional()
  @IsString()
  @MaxLength(8)
  currency?: string;

  @IsOptional()
  @IsString()
  @MaxLength(120)
  source?: string;

  @IsOptional()
  @IsString()
  @MaxLength(2000)
  notes?: string;

  @IsOptional()
  @IsArray()
  @IsString({ each: true })
  tags?: string[];

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

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

  @IsOptional()
  @IsString()
  @MaxLength(400)
  lostReason?: string | null;

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

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

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

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

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

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

export class MoveDealDto {
  @IsString()
  stageId!: string;

  @IsOptional()
  @Type(() => Number)
  @IsNumber()
  @Min(0)
  position?: number;
}