/** 品牌数据库(不符合ASIN)表单模型（任务 69）：新建/编辑表单校验与序列化，纯逻辑。 */
import type { InvalidAsinItem } from './invalid-asin-model.ts'

export const INVALID_ASIN_FIELD_MAX_LEN = 128

export interface InvalidAsinForm {
  dataValue: string
  brand: string
  groupId: number | null
}

export interface InvalidAsinFormErrors {
  dataValue?: string
  brand?: string
  groupId?: string
}

export interface InvalidAsinCreatePayload {
  dataValue: string
  brand?: string
  groupId: number
}

export interface InvalidAsinUpdatePayload {
  dataValue: string
  brand?: string
  groupId?: number
}

export function createEmptyInvalidAsinForm(): InvalidAsinForm {
  return { dataValue: '', brand: '', groupId: null }
}

/** 从列表项回填表单。 */
export function invalidAsinFormFromItem(item: InvalidAsinItem): InvalidAsinForm {
  return { dataValue: item.dataValue, brand: item.brand, groupId: item.groupId }
}

function text(value: string): string {
  return (value || '').trim()
}

/** 校验表单（镜像后端 NotBlank/@Size/NotNull 文案）；manual 新增必须选分组。 */
export function validateInvalidAsinForm(
  form: InvalidAsinForm,
  options: { requireGroup: boolean },
): { valid: boolean; errors: InvalidAsinFormErrors } {
  const errors: InvalidAsinFormErrors = {}
  const dataValue = text(form.dataValue)
  if (!dataValue) {
    errors.dataValue = 'ASIN 不能为空'
  } else if (dataValue.length > INVALID_ASIN_FIELD_MAX_LEN) {
    errors.dataValue = `ASIN 长度不能超过${INVALID_ASIN_FIELD_MAX_LEN}个字符`
  }
  const brand = text(form.brand)
  if (brand.length > INVALID_ASIN_FIELD_MAX_LEN) {
    errors.brand = `品牌长度不能超过${INVALID_ASIN_FIELD_MAX_LEN}个字符`
  }
  if (options.requireGroup && (typeof form.groupId !== 'number' || form.groupId < 1)) {
    errors.groupId = '请选择分组'
  }
  return { valid: Object.keys(errors).length === 0, errors }
}

/** 表单 → POST /api/admin/invalid-asin-data 请求体(camel)。 */
export function toInvalidAsinCreateRequest(form: InvalidAsinForm): InvalidAsinCreatePayload {
  const payload: InvalidAsinCreatePayload = {
    dataValue: text(form.dataValue),
    groupId: typeof form.groupId === 'number' ? form.groupId : 0,
  }
  const brand = text(form.brand)
  if (brand) payload.brand = brand
  return payload
}

/** 表单 → PUT /api/admin/invalid-asin-data/{id} 请求体；自动导入记录默认不迁组。 */
export function toInvalidAsinUpdateRequest(
  form: InvalidAsinForm,
  options: { includeGroup?: boolean } = {},
): InvalidAsinUpdatePayload {
  const payload: InvalidAsinUpdatePayload = { dataValue: text(form.dataValue) }
  const brand = text(form.brand)
  if (brand) payload.brand = brand
  if (options.includeGroup && typeof form.groupId === 'number' && form.groupId >= 1) {
    payload.groupId = form.groupId
  }
  return payload
}