import { ApiPropertyOptional } from '@nestjs/swagger';
import { Transform } from 'class-transformer';
import { IsInt, IsNumber, IsOptional, Min } from 'class-validator';

const toNumber = ({ value }: { value: unknown }) =>
  value === '' || value == null ? value : Number(value);

/**
 * Every field optional — the backoffice form PATCHes only what changed. A
 * standard of zero is rejected: it would make every implement-rate division
 * blow up or read as infinite achievement.
 */
export class UpdateOperationsStandardsDto {
  @ApiPropertyOptional({ example: 10 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  stationStandardHoursEthiopia?: number;

  @ApiPropertyOptional({ example: 13 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  stationStandardHoursDjibouti?: number;

  @ApiPropertyOptional({ example: 65 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  cycleStandardHoursContainer?: number;

  @ApiPropertyOptional({ example: 88 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  cycleStandardHoursBulkDmp?: number;

  @ApiPropertyOptional({ example: 96 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  cycleStandardHoursBulkNagad?: number;

  @ApiPropertyOptional({ example: 96 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  cycleStandardHoursBulkBcc?: number;

  @ApiPropertyOptional({ example: 21 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  defaultLegStandardHours?: number;

  @ApiPropertyOptional({ example: 30 })
  @IsOptional()
  @Transform(toNumber)
  @IsInt()
  @Min(0)
  delayToleranceMinutes?: number;

  /**
   * Handling standards have no spec figure, so they are the only two that may
   * be cleared: null puts the report back to reporting hours without a rate.
   */
  @ApiPropertyOptional({ example: 6.75, nullable: true })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  handlingStandardHoursContainer?: number | null;

  @ApiPropertyOptional({ example: 12, nullable: true })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  handlingStandardHoursBulk?: number | null;

  @ApiPropertyOptional({ example: 20 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  chargedTonsFull20ft?: number;

  @ApiPropertyOptional({ example: 40 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  chargedTonsFull40ft?: number;

  @ApiPropertyOptional({ example: 2.24 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  chargedTonsEmpty20ft?: number;

  @ApiPropertyOptional({ example: 3.88 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  chargedTonsEmpty40ft?: number;

  @ApiPropertyOptional({ example: 70 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  chargedTonsPerWagonGeneral?: number;

  @ApiPropertyOptional({ example: 38 })
  @IsOptional()
  @Transform(toNumber)
  @IsNumber()
  @Min(0.01)
  chargedTonsPerWagonPerishable?: number;

  @ApiPropertyOptional({ example: 50 })
  @IsOptional()
  @Transform(toNumber)
  @IsInt()
  @Min(1)
  defaultFullTrainsetWagons?: number;
}