Convert Human Era to toggle with implicit API-level date filtering

app/components/search-box.tsx

@@ -17,13 +17,13 @@ import { Toggle } from "@/components/ui/toggle";
 import { Code, Clock } from "lucide-react";
 import ManualDialog from "./manual-dialog";
 import AdvancedFilterBuilder, { getCachedFilterRule } from "./filter-sphere";
-import { Button } from "@/components/ui/button";
 
 export interface Props {
   query: string;
   initAdvancedSearch: boolean;
   onChange: (s: string) => void;
   onSortChange: (sort: Sort) => void;
+  onHumanEraChange?: (enabled: boolean) => void;
 }
 
 export enum Sort {
@@ -34,7 +34,7 @@ export enum Sort {
   IdAsc = "id:asc",
 }
 
-const PRE_2023_DATE_FILTER = "date < sec(2023-01-01)";
+export const PRE_2023_DATE_FILTER = "date < sec(2023-01-01)";
 
 export default function Search(props: Props) {
   const [useAdvancedSearch, setUseAdvancedSearch] = React.useState(
@@ -44,61 +44,37 @@ export default function Search(props: Props) {
     props.initAdvancedSearch && !getCachedFilterRule(props.query)
   );
   const [sort, setSort] = React.useState<Sort>(Sort.Relevance);
+  const [humanEraEnabled, setHumanEraEnabled] = React.useState(false);
+
   useEffect(() => {
     props.onSortChange(sort);
   }, [sort]);
 
-  const handlePre2023Search = () => {
-    const currentQuery = props.query.trim();
-    const dateFilter = `(${PRE_2023_DATE_FILTER})`;
-
-    // Check if the query already contains the pre-2023 date filter
-    if (currentQuery.includes(PRE_2023_DATE_FILTER)) {
-      // Already has the filter, no need to add again
-      return;
-    }
-
-    // Check if current query already has a filter (ends with parenthesis)
-    if (currentQuery.endsWith(")")) {
-      // Extract simple query and existing filter
-      const firstParen = currentQuery.indexOf("(");
-      if (firstParen !== -1) {
-        const simpleQuery = currentQuery.substring(0, firstParen).trim();
-        const existingFilter = currentQuery.substring(firstParen);
-        // Combine filters with AND
-        const combinedFilter = `(${existingFilter.slice(1, -1)} AND ${PRE_2023_DATE_FILTER})`;
-        const newQuery = simpleQuery ? `${simpleQuery} ${combinedFilter}` : combinedFilter;
-        props.onChange(newQuery);
-      } else {
-        // Should not happen, but fallback
-        props.onChange(`${currentQuery} ${dateFilter}`);
-      }
-    } else {
-      // Simple query or empty, append filter
-      const newQuery = currentQuery ? `${currentQuery} ${dateFilter}` : dateFilter;
-      props.onChange(newQuery);
+  useEffect(() => {
+    if (props.onHumanEraChange) {
+      props.onHumanEraChange(humanEraEnabled);
     }
-
-    setUseAdvancedSearch(true);
-    setIsQueryMode(true);
-  };
+  }, [humanEraEnabled]);
+
+
 
   return (
     <div className="w-full font-semibold">
       <div className="flex flex-row items-center justify-end mb-2">
         <div className="mr-auto hidden md:block">
           <ManualDialog />
         </div>
-        <Button
-          variant="reverse"
-          size="sm"
-          onClick={handlePre2023Search}
-          className="mr-2"
-          title="搜索 2023 年以前的内容（人类时代）"
-        >
+        <label className="mr-2 flex items-center gap-2" htmlFor="human-era">
           <Clock className="h-4 w-4" />
-          人类时代
-        </Button>
+          <span className="text-sm">人类时代</span>
+        </label>
+        <Switch
+          className="inline-block mr-2"
+          id="human-era"
+          checked={humanEraEnabled}
+          onCheckedChange={setHumanEraEnabled}
+          title="搜索 2023 年以前的内容（人类时代）"
+        />
         {useAdvancedSearch && (
           <>
             <Toggle

app/components/search-results.tsx

@@ -18,13 +18,22 @@ import NotFoundAnimation from "./not-found-animation";
 import { Switch } from "@/components/ui/switch";
 import NoMoreAnimation from "./no-more-animation";
 import { Sort } from "./search-box";
+import { PRE_2023_DATE_FILTER } from "./search-box";
 import { CalendarDays, PenIcon } from "lucide-react";
+import { addDateFilterToQuery } from "../utils/queryFilter";
 
-async function getSearchResults(query: string, page: number, sort: Sort) {
+async function getSearchResults(query: string, page: number, sort: Sort, humanEraEnabled: boolean = false) {
   const baseUrl = "https://search-api.saveweb.org/api/search";
   const url = new URL(baseUrl);
+
+  // Apply human era date filter if enabled
+  let finalQuery = query.trim();
+  if (humanEraEnabled) {
+    finalQuery = addDateFilterToQuery(finalQuery, PRE_2023_DATE_FILTER);
+  }
+
   const params = new URLSearchParams({
-    q: query.trim(),
+    q: finalQuery,
     f: "false",
     p: page.toString(),
     h: "true",
@@ -54,10 +63,12 @@ export default function SearchResults({
   initialQuery,
   initialPage,
   sort,
+  humanEraEnabled = false,
 }: {
   initialQuery: string;
   initialPage: number;
   sort: Sort;
+  humanEraEnabled?: boolean;
 }) {
   const [query, setQuery] = useState(initialQuery);
   const [page, setPage] = useState(initialPage);
@@ -100,7 +111,8 @@ export default function SearchResults({
       const data = await getSearchResults(
         query,
         reset ? initialPage : page,
-        sort
+        sort,
+        humanEraEnabled
       );
       setTotalHits(totalHits + (data?.hits?.length ?? 0));
       if (data.error) {

app/components/search.tsx

@@ -21,6 +21,7 @@ export default function Search() {
   let initSort = decodeURIComponent(searchParams.get("sort") || "relevance");
   if (!initSort) initSort = "relevance";
   let [sort, setSort] = useState<Sort>(initSort as Sort);
+  const [humanEraEnabled, setHumanEraEnabled] = useState(false);
 
   const [query, setQuery] = useState(initialQuery);
 
@@ -80,15 +81,17 @@ export default function Search() {
           initAdvancedSearch={isAdvancedSearch(query)}
           onChange={handleInputChange}
           onSortChange={setSort}
+          onHumanEraChange={setHumanEraEnabled}
         />
       </form>
 
       {query && (
         <SearchResults
-          key={`${query}-${sort}`} // 添加 key 属性确保查询变化时重新渲染
+          key={`${query}-${sort}-${humanEraEnabled}`} // 添加 key 属性确保查询变化时重新渲染
           initialQuery={query} // 改用 query 替代 initialQuery
           initialPage={0}
           sort={sort}
+          humanEraEnabled={humanEraEnabled}
         />
       )}
     </div>

app/utils/queryFilter.test.ts

@@ -0,0 +1,33 @@
+import { describe, it, expect } from 'vitest';
+import { addDateFilterToQuery } from './queryFilter';
+
+describe('addDateFilterToQuery', () => {
+  const dateFilter = 'date < sec(2023-01-01)';
+
+  it('should add filter to simple query', () => {
+    const result = addDateFilterToQuery('技术', dateFilter);
+    expect(result).toBe('技术 (date < sec(2023-01-01))');
+  });
+
+  it('should add filter to empty query', () => {
+    const result = addDateFilterToQuery('', dateFilter);
+    expect(result).toBe('(date < sec(2023-01-01))');
+  });
+
+  it('should not duplicate filter if already present', () => {
+    const query = '技术 (date < sec(2023-01-01))';
+    const result = addDateFilterToQuery(query, dateFilter);
+    expect(result).toBe(query);
+  });
+
+  it('should combine with existing filter using AND', () => {
+    const query = '技术 (author=test)';
+    const result = addDateFilterToQuery(query, dateFilter);
+    expect(result).toBe('技术 (author=test AND date < sec(2023-01-01))');
+  });
+
+  it('should handle query with whitespace', () => {
+    const result = addDateFilterToQuery('  技术  ', dateFilter);
+    expect(result).toBe('技术 (date < sec(2023-01-01))');
+  });
+});

app/utils/queryFilter.ts

@@ -0,0 +1,47 @@
+/**
+ * Utility functions for combining search queries with filters
+ */
+
+/**
+ * Checks if a query already contains a specific date filter
+ * Uses more specific matching to avoid false positives
+ */
+function hasDateFilter(query: string, dateFilter: string): boolean {
+  // Match the filter when it's wrapped in parentheses or at the end
+  const filterPattern = new RegExp(`\\(${dateFilter.replace(/[()]/g, '\\$&')}\\)`, 'i');
+  return filterPattern.test(query);
+}
+
+/**
+ * Combines a search query with a date filter
+ * @param query - The original search query
+ * @param dateFilter - The date filter expression to add
+ * @returns The combined query with the date filter applied
+ */
+export function addDateFilterToQuery(query: string, dateFilter: string): string {
+  const trimmedQuery = query.trim();
+  const filterExpression = `(${dateFilter})`;
+
+  // Check if the query already contains the date filter
+  if (hasDateFilter(trimmedQuery, dateFilter)) {
+    return trimmedQuery;
+  }
+
+  // Check if current query already has a filter (ends with parenthesis)
+  if (trimmedQuery.endsWith(")")) {
+    // Extract simple query and existing filter
+    const firstParen = trimmedQuery.indexOf("(");
+    if (firstParen !== -1) {
+      const simpleQuery = trimmedQuery.substring(0, firstParen).trim();
+      const existingFilter = trimmedQuery.substring(firstParen);
+      // Combine filters with AND
+      const combinedFilter = `(${existingFilter.slice(1, -1)} AND ${dateFilter})`;
+      return simpleQuery ? `${simpleQuery} ${combinedFilter}` : combinedFilter;
+    }
+    // Should not happen, but fallback
+    return `${trimmedQuery} ${filterExpression}`;
+  }
+
+  // Simple query or empty, append filter
+  return trimmedQuery ? `${trimmedQuery} ${filterExpression}` : filterExpression;
+}