Migrate to Vite 7, improve UI (Copy/Download), and enhance API security

src/App.jsx

@@ -0,0 +1,199 @@
+import React, { useState, useEffect } from "react";
+import Header from "./components/Header";
+import Footer from "./components/Footer";
+import MainPage from "./components/MainPage";
+import ApiKeyPage from "./components/ApiKeyPage";
+import "./App.css";
+
+// Utility function to generate a cryptographically secure API key
+function generateApiKey() {
+  const array = new Uint8Array(16);
+
+  // Use crypto.getRandomValues if available (browser), fallback for tests
+  if (typeof crypto !== "undefined" && crypto.getRandomValues) {
+    crypto.getRandomValues(array);
+  } else {
+    // Fallback for test environments - not cryptographically secure
+    for (let i = 0; i < array.length; i++) {
+      array[i] = Math.floor(Math.random() * 256);
+    }
+  }
+
+  return Array.from(array, (byte) => byte.toString(16).padStart(2, "0")).join(
+    "",
+  );
+}
+
+// JMESPath Testing Tool - Main Application Component
+function App() {
+  const [currentPage, setCurrentPage] = useState("main"); // 'main' or 'apikey'
+  const [theme, setTheme] = useState(() => {
+    // Load theme from localStorage or default to 'auto'
+    return localStorage.getItem("theme") || "auto";
+  });
+  const [showReloadButton, setShowReloadButton] = useState(false);
+  const [currentStateGuid, setCurrentStateGuid] = useState(null);
+  const [jmespathExpression, setJmespathExpression] =
+    useState("people[0].name");
+  const [jsonData, setJsonData] = useState(`{
+  "people": [
+    {
+      "name": "John Doe",
+      "age": 30,
+      "city": "New York"
+    },
+    {
+      "name": "Jane Smith",
+      "age": 25,
+      "city": "Los Angeles"
+    }
+  ],
+  "total": 2
+}`);
+  const [apiKey, setApiKey] = useState(() => {
+    // Load API key from localStorage or generate new one
+    const stored = localStorage.getItem("jmespath-api-key");
+    if (stored && /^[0-9a-f]{32}$/i.test(stored)) {
+      return stored;
+    }
+    const newKey = generateApiKey();
+    localStorage.setItem("jmespath-api-key", newKey);
+    return newKey;
+  });
+
+  // Theme management
+  useEffect(() => {
+    const applyTheme = (selectedTheme) => {
+      const effectiveTheme =
+        selectedTheme === "auto"
+          ? window.matchMedia &&
+            window.matchMedia("(prefers-color-scheme: dark)").matches
+            ? "dark"
+            : "light"
+          : selectedTheme;
+
+      document.documentElement.setAttribute("data-bs-theme", effectiveTheme);
+    };
+
+    applyTheme(theme);
+
+    // Save theme preference
+    localStorage.setItem("theme", theme);
+  }, [theme]);
+
+  // Get headers for API requests
+  const getApiHeaders = () => {
+    return {
+      Accept: "application/json",
+      "X-API-Key": apiKey,
+    };
+  };
+
+  // Load sample data from API on startup and setup periodic state checking
+  useEffect(() => {
+    loadSampleData();
+
+    // Check for state changes every 5 seconds
+    const interval = setInterval(checkStateChange, 5000);
+    return () => clearInterval(interval);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [apiKey]);
+
+  // Check if state has changed (new data uploaded)
+  const checkStateChange = async () => {
+    try {
+      const response = await fetch("/api/v1/state", {
+        headers: getApiHeaders(),
+      });
+
+      if (response.ok) {
+        const stateData = await response.json();
+        if (stateData.state && stateData.state !== currentStateGuid) {
+          setShowReloadButton(true);
+        }
+      }
+    } catch (error) {
+      // Silently handle state check errors
+    }
+  };
+
+  // Load sample data from API
+  const loadSampleData = async () => {
+    try {
+      setShowReloadButton(false);
+      const response = await fetch("/api/v1/sample", {
+        headers: getApiHeaders(),
+      });
+
+      if (response.ok) {
+        const data = await response.json();
+        if (data) {
+          setJsonData(JSON.stringify(data, null, 2));
+        }
+
+        // Update current state GUID
+        const stateResponse = await fetch("/api/v1/state", {
+          headers: getApiHeaders(),
+        });
+        if (stateResponse.ok) {
+          const stateData = await stateResponse.json();
+          setCurrentStateGuid(stateData.state);
+        }
+      }
+    } catch (error) {
+      console.error("Failed to load sample data:", error);
+    }
+  };
+
+  // Regenerate API key
+  const regenerateApiKey = () => {
+    const newKey = generateApiKey();
+    setApiKey(newKey);
+    localStorage.setItem("jmespath-api-key", newKey);
+    setShowReloadButton(false);
+    setCurrentStateGuid(null);
+  };
+
+  const handleThemeChange = (newTheme) => {
+    setTheme(newTheme);
+  };
+
+  const handlePageChange = (newPage) => {
+    setCurrentPage(newPage);
+  };
+
+  return (
+    <div className="container-fluid vh-100 d-flex flex-column">
+      <Header
+        theme={theme}
+        onThemeChange={handleThemeChange}
+        currentPage={currentPage}
+        onPageChange={handlePageChange}
+      />
+
+      {/* Main Content Section - flex-grow to fill space */}
+      <div
+        className="container-fluid flex-grow-1 d-flex flex-column"
+        style={{ minHeight: 0 }}
+      >
+        {currentPage === "main" ? (
+          <MainPage
+            apiKey={apiKey}
+            showReloadButton={showReloadButton}
+            onReloadSampleData={loadSampleData}
+            jmespathExpression={jmespathExpression}
+            setJmespathExpression={setJmespathExpression}
+            jsonData={jsonData}
+            setJsonData={setJsonData}
+          />
+        ) : (
+          <ApiKeyPage apiKey={apiKey} onRegenerateApiKey={regenerateApiKey} />
+        )}
+      </div>
+
+      <Footer />
+    </div>
+  );
+}
+
+export default App;