import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import { Transform, Type } from 'class-transformer';
import {
  IsArray,
  IsDateString,
  IsEnum,
  IsInt,
  IsOptional,
  IsString,
  IsUUID,
  Max,
  MaxLength,
  Min,
} from 'class-validator';

import { MoneyDto } from '../../../../common/money.dto';
import { AccountReferenceDto } from '../../account-reference.dto';
import { InvestmentResourceMetaDto } from '../../investment-resource.dto';

const MIN_OPERATIONS_PAGE_SIZE = 1;

const MAX_CURSOR_LENGTH = 4096;
const MAX_OPERATIONS_PAGE_SIZE = 1000;
export const DEFAULT_OPERATIONS_PAGE_SIZE = 100;

export const operationCategories = [
  'trade',
  'income',
  'tax',
  'fee',
  'transfer',
  'other',
] as const;
export type OperationCategory = (typeof operationCategories)[number];

export class BrokerageOperationsQueryDto {
  @ApiPropertyOptional({
    format: 'uuid',
    description:
      'Instrument UID. Without from, includes history since the earliest available account opening.',
  })
  @IsOptional()
  @IsUUID()
  instrumentUid?: string;

  @ApiPropertyOptional({ format: 'date-time' })
  @IsOptional()
  @IsDateString()
  from?: string;

  @ApiPropertyOptional({ format: 'date-time' })
  @IsOptional()
  @IsDateString()
  to?: string;

  @ApiPropertyOptional({ enum: operationCategories, isArray: true })
  @IsOptional()
  @Transform(({ value }: { value: unknown }) =>
    typeof value === 'string' ? value.split(',').filter(Boolean) : value,
  )
  @IsArray()
  @IsEnum(operationCategories, { each: true })
  categories?: OperationCategory[];

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  @MaxLength(MAX_CURSOR_LENGTH)
  cursor?: string;

  @ApiPropertyOptional({
    minimum: MIN_OPERATIONS_PAGE_SIZE,
    maximum: MAX_OPERATIONS_PAGE_SIZE,
    default: DEFAULT_OPERATIONS_PAGE_SIZE,
  })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(MIN_OPERATIONS_PAGE_SIZE)
  @Max(MAX_OPERATIONS_PAGE_SIZE)
  limit?: number;
}

export class BrokerageOperationDto {
  @ApiPropertyOptional({ type: AccountReferenceDto })
  account?: AccountReferenceDto;

  @ApiProperty()
  declare id: string;

  @ApiProperty({ format: 'date-time' })
  declare occurredAt: string;

  @ApiProperty()
  declare type: string;

  @ApiProperty({ enum: operationCategories })
  declare category: OperationCategory;

  @ApiProperty()
  declare description: string;

  @ApiProperty({ type: String, nullable: true })
  declare figi: null | string;

  @ApiProperty({ type: String, nullable: true })
  declare instrumentUid: null | string;

  @ApiProperty({ type: String, nullable: true })
  declare ticker: null | string;

  @ApiProperty({ type: String, nullable: true })
  declare instrumentType: null | string;

  @ApiProperty({ type: String, nullable: true })
  declare logoName: null | string;

  @ApiProperty({ type: MoneyDto, nullable: true })
  declare payment: MoneyDto | null;

  @ApiProperty({ type: String, nullable: true })
  declare quantity: null | string;

  @ApiProperty({ type: MoneyDto, nullable: true })
  declare price: MoneyDto | null;

  @ApiProperty({ type: MoneyDto, nullable: true })
  declare accruedInterest: MoneyDto | null;

  @ApiProperty({ type: MoneyDto, nullable: true })
  declare commission: MoneyDto | null;
}

export class BrokerageOperationsPageDto {
  @ApiProperty()
  declare accountId: string;

  @ApiProperty({ type: BrokerageOperationDto, isArray: true })
  declare items: BrokerageOperationDto[];

  @ApiProperty({ type: String, nullable: true })
  declare nextCursor: null | string;

  @ApiProperty()
  declare hasNext: boolean;

  @ApiProperty({ format: 'date-time' })
  declare observedAt: string;
}

export class BrokerageOperationsResourceDto {
  @ApiProperty({ type: BrokerageOperationsPageDto, nullable: true })
  declare data: BrokerageOperationsPageDto | null;

  @ApiProperty({ type: InvestmentResourceMetaDto })
  declare meta: InvestmentResourceMetaDto;
}