import { createRequestError } from './request-client.js'
import {
  normalizeOptionalNonnegativeInteger,
  normalizeOptionalNumericId
} from './response-normalizers.js'

export const normalizeResourceCapabilities = (value, label, code) => {
  const capabilities = {}
  for (const field of ['canEdit', 'canDelete']) {
    if (value[field] !== undefined && typeof value[field] !== 'boolean') {
      throw createRequestError(`${label}权限字段 ${field} 无效`, code)
    }
    capabilities[field] = value[field] === true
  }
  return capabilities
}

export const normalizeContentProtectionCapabilities = (value, label, code) => {
  const capabilities = {}
  for (const field of ['contentProtected', 'contentUnlocked', 'canManageProtection']) {
    if (value[field] !== undefined && typeof value[field] !== 'boolean') {
      throw createRequestError(`${label}内容保护字段 ${field} 无效`, code)
    }
    capabilities[field] = value[field] === true
  }
  return capabilities
}

export const normalizeBusinessFileAccess = (value, label, code, { required = false } = {}) => {
  if (value === undefined || value === null) {
    if (required) throw createRequestError(`${label}缺失`, code)
    return null
  }
  if (!value || typeof value !== 'object' || Array.isArray(value)) {
    throw createRequestError(`${label}无效`, code)
  }
  const fileId = normalizeOptionalNumericId(value.fileId, `${label}文件标识`, code)
  const ossId = normalizeOptionalNumericId(value.ossId, `${label}存储标识`, code)
  if (!fileId || !ossId) throw createRequestError(`${label}缺少文件标识`, code)
  const normalizeText = (field) => {
    const fieldValue = value[field]
    if (fieldValue === undefined || fieldValue === null) return ''
    if (typeof fieldValue !== 'string') throw createRequestError(`${label}${field}无效`, code)
    return fieldValue.trim()
  }
  const accessUrl = normalizeText('accessUrl')
  if (required && !accessUrl) throw createRequestError(`${label}缺少授权访问地址`, code)
  if (accessUrl && !/^https:\/\/[^\s]+$/.test(accessUrl)) {
    throw createRequestError(`${label}授权访问地址必须使用 HTTPS`, code)
  }
  return {
    fileId,
    ossId,
    fileName: normalizeText('fileName'),
    mediaType: normalizeText('mediaType'),
    fileSize: normalizeOptionalNonnegativeInteger(value.fileSize, `${label}文件大小`, code),
    accessUrl,
    expiresAt: normalizeText('expiresAt')
  }
}

export const normalizeBusinessFileAccessRows = (value, label, code) => {
  if (value === undefined || value === null) return []
  if (!Array.isArray(value)) throw createRequestError(`${label}不是列表`, code)
  return value.map((item) => normalizeBusinessFileAccess(item, label, code, { required: true }))
}