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src/api/user.ts

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+import { QueryGetAPI } from '@/api/query'
+import { BASE_API } from '@/data/constants'
+import { APIRoot, UserInfo } from './api-models'
+import { ref } from 'vue'
+
+const ACCOUNT_URL = `${BASE_API}user/`
+export const USERS = ref<{ [uId: number]: UserInfo }>({})
+
+export async function useUser(uId: number) {
+  if (!USERS.value[uId]) {
+    const result = await GetInfo(uId)
+    if (result.code == 200) {
+      USERS.value[uId] = result.data
+    }
+  }
+  return USERS.value[uId]
+}
+
+export async function GetInfo(uId: number): Promise<APIRoot<UserInfo>> {
+  return QueryGetAPI<UserInfo>(`${ACCOUNT_URL}info`, {
+    uId: uId,
+  })
+}