function MainComponent() { const [searchResults, setSearchResults] = React.useState([]); const [query, setQuery] = React.useState(''); const handleSearch = async ()=>{ const urls = [ 'https://www.example.com', 'https://www.wikipedia.org', 'https://www.python.org' ]; const data = []; for (const url of urls){ const response = await fetch(`/api/crawl?url=${encodeURIComponent(url)}`); const result = await response.json(); if (result) { data.push(result); } } const createIndex = (documents)=>{ const index = {}; documents.forEach((doc, i)=>{ const text = (doc.title + ' ' + doc.body).toLowerCase(); const words = text.match(/\b\w+\b/g) || []; words.forEach((word)=>{ if (!index[word]) index[word] = []; index[word].push(i); }); }); return index; }; const search = (query, index, documents)=>{ const queryWords = query.toLowerCase().split(/\s+/); const results = new Set(); queryWords.forEach((word)=>{ if (index[word]) { index[word].forEach((id)=>results.add(id)); } }); return Array.from(results).map((id)=>documents[id]); }; const index = createIndex(data); const results = search(query, index, data); setSearchResults(results); }; const handleInputChange = (e)=>setQuery(e.target.value); return /*#__PURE__*/ React.createElement("div", { className: "text-center p-8 font-roboto", __source: { fileName: "", lineNumber: 53, columnNumber: 5 }, __self: this }, /*#__PURE__*/ React.createElement("h1", { className: "text-3xl font-bold mb-4", __source: { fileName: "", lineNumber: 54, columnNumber: 7 }, __self: this }, "完全無料の検索エンジン"), /*#__PURE__*/ React.createElement("p", { className: "text-lg mb-6", __source: { fileName: "", lineNumber: 55, columnNumber: 7 }, __self: this }, "あらゆる規制を回避し、本来記載されているサイトを閲覧できる使いやすくシンプルなUIを提供する"), /*#__PURE__*/ React.createElement("div", { className: "flex flex-col items-center space-y-4", __source: { fileName: "", lineNumber: 58, columnNumber: 7 }, __self: this }, /*#__PURE__*/ React.createElement("input", { type: "text", value: query, onChange: handleInputChange, className: "border border-gray-300 p-2 w-[300px] rounded", placeholder: "検索...", __source: { fileName: "", lineNumber: 59, columnNumber: 9 }, __self: this }), /*#__PURE__*/ React.createElement("button", { onClick: handleSearch, className: "bg-blue-500 text-white p-2 rounded", __source: { fileName: "", lineNumber: 66, columnNumber: 9 }, __self: this }, "検索")), /*#__PURE__*/ React.createElement("div", { className: "mt-6", __source: { fileName: "", lineNumber: 75, columnNumber: 7 }, __self: this }, searchResults.map((result, index)=>/*#__PURE__*/ React.createElement("div", { key: index, className: "border-b border-gray-300 p-4", __source: { fileName: "", lineNumber: 77, columnNumber: 11 }, __self: this }, /*#__PURE__*/ React.createElement("h2", { className: "text-xl font-bold", __source: { fileName: "", lineNumber: 78, columnNumber: 13 }, __self: this }, result.title), /*#__PURE__*/ React.createElement("a", { href: result.url, className: "text-blue-500", __source: { fileName: "", lineNumber: 79, columnNumber: 13 }, __self: this }, result.url), /*#__PURE__*/ React.createElement("p", { className: "text-gray-700", __source: { fileName: "", lineNumber: 80, columnNumber: 13 }, __self: this }, result.body.slice(0, 200), "..."))))); }