import { ApiProperty, ApiPropertyOptional } from "@nestjs/swagger";
import {
  IsDateString,
  IsNumber,
  IsOptional,
  IsString,
  MaxLength,
} from "class-validator";

import { ELedgerEntryType } from "../entities/leave-ledger-entry.entity";

export class AdjustBalanceDto {
  @ApiProperty({
    description:
      "Signed. Positive credits days, negative removes them. Posted as an " +
      "ADJUSTMENT entry — nothing is overwritten.",
    example: -2.5,
  })
  @IsNumber()
  days!: number;

  @ApiProperty({
    maxLength: 256,
    description: "Required. An unexplained adjustment is indefensible later.",
  })
  @IsString()
  @MaxLength(256)
  reason!: string;

  @ApiPropertyOptional({ format: "date", description: "Defaults to today." })
  @IsOptional()
  @IsDateString()
  effectiveOn?: string;
}

export class ReverseEntryDto {
  @ApiProperty({ maxLength: 256 })
  @IsString()
  @MaxLength(256)
  reason!: string;
}

export class LedgerEntryResponseDto {
  @ApiProperty() id!: string;
  @ApiProperty({ enum: ELedgerEntryType }) entryType!: ELedgerEntryType;
  @ApiProperty({ description: "Signed days." }) days!: string;
  @ApiProperty({ format: "date" }) effectiveOn!: string;
  @ApiPropertyOptional() reason?: string | null;
  @ApiPropertyOptional() sourceType?: string | null;
  @ApiPropertyOptional() sourceId?: string | null;
  @ApiPropertyOptional() reversesId?: string | null;
}