検索をいい感じに

src/components/Contest/ContestTeams.vue

@@ -16,7 +16,7 @@ interface Props {
 const props = defineProps<Props>()
 const searchQuery = ref('')
 const filteredContestTeams = computed(() =>
-  searchListCaseInsensitive(props.contestTeams, searchQuery.value, 'name')
+  searchListCaseInsensitive(props.contestTeams, searchQuery.value, v => v.name)
 )
 </script>
 

src/components/UI/MemberInput.vue

@@ -22,7 +22,7 @@ const limit = ref(10)
 const search = ref('')
 
 const filtered = computed(() =>
-  searchListCaseInsensitive(props.users, search.value, 'name')
+  searchListCaseInsensitive(props.users, search.value, v => v.name)
 )
 const options = computed(() => filtered.value.slice(0, limit.value))
 const hasNextPage = computed(() => filtered.value.length > options.value.length)

src/lib/search.ts

@@ -1,12 +1,35 @@
-export const searchListCaseInsensitive = <
-  K extends string,
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any -- Index signature for type 'string' is missing in type を回避
-  T extends Record<K, string> & Record<PropertyKey, any>
->(
-  list: T[],
+// https://github.com/traPtitech/traQ_S-UI/blob/983c6f89f3246509011f8ca4d76e2ba24e0beb2b/src/lib/basic/array.ts
+
+/**
+ * 一致するキーの一覧を返す
+ * priorityが0のとき完全一致
+ * 1のとき前方一致
+ * 2のとき部分一致
+ *
+ * @param arr 検索対象のキーの配列
+ * @param query lowercaseになっているクエリ
+ * @param f キーから検索対象の文字列を取得する関数
+ */
+export const searchListCaseInsensitive = <T>(
+  arr: readonly T[],
   _query: string,
-  key: K
+  f: (v: T) => string
 ): T[] => {
   const query = _query.toLowerCase()
-  return list.filter(item => item[key].toLowerCase().includes(query))
+  const result: Array<{ value: T; priority: number }> = []
+
+  for (const val of arr) {
+    const valLower = f(val).toLowerCase()
+    if (valLower === query) {
+      result.push({ value: val, priority: 0 })
+    } else if (valLower.startsWith(query)) {
+      result.push({ value: val, priority: 1 })
+    } else if (valLower.includes(query)) {
+      result.push({ value: val, priority: 2 })
+    }
+  }
+
+  return result
+    .toSorted((a, b) => a.priority - b.priority)
+    .map(({ value }) => value)
 }

src/pages/Contests.vue

@@ -16,7 +16,7 @@ const contests = await contestStore.fetchContests()
 
 const searchQuery = ref('')
 const filteredContests = computed(() =>
-  searchListCaseInsensitive(contests, searchQuery.value, 'name')
+  searchListCaseInsensitive(contests, searchQuery.value, v => v.name)
 )
 </script>
 

src/pages/Events.vue

@@ -32,7 +32,7 @@ const filteredEventsBySearch = computed(() =>
   searchListCaseInsensitive(
     filteredEventsByLevel.value,
     searchQuery.value,
-    'name'
+    v => v.name
   )
 )
 </script>

src/pages/Projects.vue

@@ -16,7 +16,7 @@ const projects = await projectStore.fetchProjects()
 
 const searchQuery = ref('')
 const filteredProjects = computed(() =>
-  searchListCaseInsensitive(projects, searchQuery.value, 'name')
+  searchListCaseInsensitive(projects, searchQuery.value, v => v.name)
 )
 </script>