fix: issues

frontend/src/components/List.vue

@@ -3,8 +3,8 @@
 
   <van-back-top bottom="80" />
 
-  <van-list style="padding-bottom: 3em" v-model:loading="loading" :finished="finished" finished-text="没有更多了"
-    offset="100" @load="loadData">
+  <van-list style="padding-bottom: 3em" v-model:loading="loading" :finished="finished"
+    :finished-text="bought ? '您还没有购买' : '没有更多了'" offset="100" @load="loadData">
     <list-item-card v-for="item in items" :key="item" :item="item" :bought="bought" />
   </van-list>
 </template>
@@ -55,16 +55,17 @@ export default defineComponent({
             return;
           }
 
+          if (res.data.length < pageLimit.value) {
+            finished.value = true;
+          }
+
           if (offset.value == "") {
             items.value = res.data;
           } else {
             items.value = items.value.concat(res.data);
           }
-          offset.value = res.data[res.data.length - 1].hash;
+          offset.value = res.data[res.data.length - 1]?.hash;
 
-          if (res.data.length < pageLimit.value) {
-            finished.value = true;
-          }
         })
         .catch((err) => {
           console.error("ERROR", err);