/**
 * VIP 权限判断（医生小程序全局方法）
 * - 履约诊所 permissions 来自 get-current-store-type 的 vip.permissions
 * - 业务里用 hasVipPermission(code, permissions) / fetchStoreVipPermissions
 * - 模板显隐可用 components/vip-gate/vip-gate.vue
 */
import { getCurrentStoreTypeApi } from '@/api/reception.js'

/** 与后台 xk_vip_feature.code 对齐 */
export const VIP_FEATURE = {
  MEDICAL_RECORD: 'medical_record',
  AI_MEDICAL_RECORD: 'ai_medical_record',
  AI_PRESCRIPTION: 'ai_prescription',
  GOLDEN_FORMULA: 'golden_formula',
}

/**
 * 从接口响应解出业务体（兼容 result / data / 已解包）
 */
function unwrapPayload(res) {
  if (!res || typeof res !== 'object') return {}
  if (res.result != null && typeof res.result === 'object') return res.result
  if (res.data != null && typeof res.data === 'object') return res.data
  return res
}

/**
 * 从 get-current-store-type 响应取出 permissions 数组
 * @param {any} res
 * @returns {string[]}
 */
export function parseVipPermissionsFromRes(res) {
  const data = unwrapPayload(res)
  const vip = data && data.vip
  const list = vip && Array.isArray(vip.permissions) ? vip.permissions : []
  return list.filter((x) => typeof x === 'string' && x)
}

/**
 * 从响应取出完整 vip 对象
 * @param {any} res
 * @returns {object|null}
 */
export function pickVipFromRes(res) {
  const data = unwrapPayload(res)
  const vip = data && data.vip
  return vip && typeof vip === 'object' ? vip : null
}

/**
 * 是否拥有指定 VIP 功能码
 * @param {string} code
 * @param {string[]|object|null|undefined} vipOrPermissions vip 对象或 permissions 数组（医生端必须传履约诊所）
 */
export function hasVipPermission(code, vipOrPermissions) {
  if (!code) return false
  if (vipOrPermissions == null) return false
  let list = []
  if (Array.isArray(vipOrPermissions)) {
    list = vipOrPermissions
  } else if (typeof vipOrPermissions === 'object') {
    list = Array.isArray(vipOrPermissions.permissions) ? vipOrPermissions.permissions : []
  }
  return list.indexOf(code) >= 0
}

/**
 * 拉取履约诊所 VIP permissions（统一入口，避免各页复制 getCurrentStoreType）
 * @param {{ storeId?: number|string, registerId?: number|string }} opts
 * @returns {Promise<string[]>}
 */
export async function fetchStoreVipPermissions(opts) {
  const storeId = Number((opts && opts.storeId) || 0)
  const registerId = Number((opts && opts.registerId) || 0)
  const params = {}
  if (storeId > 0) params.store_id = storeId
  if (registerId > 0) params.register_id = registerId
  if (!params.store_id && !params.register_id) {
    return []
  }
  try {
    const res = await getCurrentStoreTypeApi(params)
    return parseVipPermissionsFromRes(res)
  } catch (e) {
    return []
  }
}