Optimized package analysis

src/PackageDetails.tsx

@@ -1,7 +1,7 @@
 import { Button } from "./components/ui/button";
 import { Label } from "./components/ui/label";
 import { Input } from "./components/ui/input";
-import { useState, useEffect, useRef } from "react";
+import { useState, useEffect, useRef, useMemo, useCallback, memo } from "react";
 import { Edit2, ChevronDown, ChevronUp, AlertCircle, Search, Package, Upload, CheckCircle2, XCircle, AlertTriangle, FileJson, TrendingUp, TrendingDown, Copy, Check, Terminal, X, Save, FolderOpen } from "lucide-react";
 import { toast } from "sonner";
 import { PackageSelector } from "./PackageSelector";
@@ -98,7 +98,7 @@ function satisfiesVersion(installedVersion: string, requiredRange: string): bool
     }
 }
 
-function PackageResultCard({ result, onVersionChange, nodeVersion }: { 
+const PackageResultCard = memo(function PackageResultCard({ result, onVersionChange, nodeVersion }: { 
     result: AnalysisResult; 
     onVersionChange: (packageName: string, version: string) => void;
     nodeVersion: string;
@@ -111,10 +111,23 @@ function PackageResultCard({ result, onVersionChange, nodeVersion }: {
     const hasVersionChange = result.selectedVersion && result.selectedVersion !== result.currentVersion;
     const hasCompatibilityIssue = !result.nodeCompatible || (result.peerConflicts && result.peerConflicts.length > 0);
 
-    const sortedVersions = result.availableVersions ? sortVersions([...result.availableVersions]) : [];
-    const filteredAvailableVersions = sortedVersions.filter(v => 
-        v.toLowerCase().includes(versionSearchQuery.toLowerCase())
+    const sortedVersions = useMemo(() => 
+        result.availableVersions ? sortVersions([...result.availableVersions]) : [],
+        [result.availableVersions]
     );
+    
+    const filteredAvailableVersions = useMemo(() => 
+        sortedVersions.filter(v => 
+            v.toLowerCase().includes(versionSearchQuery.toLowerCase())
+        ),
+        [sortedVersions, versionSearchQuery]
+    );
+
+    const handleVersionChange = useCallback((version: string) => {
+        onVersionChange(result.name, version);
+        setVersionDropdownOpen(false);
+        setVersionSearchQuery("");
+    }, [result.name, onVersionChange]);
 
     useEffect(() => {
         if (!versionDropdownOpen) return;
@@ -233,11 +246,7 @@ function PackageResultCard({ result, onVersionChange, nodeVersion }: {
                                         filteredAvailableVersions.map((version) => (
                                             <button
                                                 key={version}
-                                                onClick={() => {
-                                                    onVersionChange(result.name, version);
-                                                    setVersionDropdownOpen(false);
-                                                    setVersionSearchQuery('');
-                                                }}
+                                                onClick={() => handleVersionChange(version)}
                                                 className={`w-full text-left px-3 py-2 rounded-md transition-colors ${
                                                     version === activeVersion 
                                                         ? 'bg-accent font-medium border border-border' 
@@ -419,7 +428,7 @@ function PackageResultCard({ result, onVersionChange, nodeVersion }: {
             </div>
         </div>
     );
-}
+});
 
 export function PackageDetails() {
     const [packages, setPackages] = useState<PackageData[]>([]);
@@ -480,7 +489,7 @@ export function PackageDetails() {
         });
     };
 
-    const handleVersionChange = (packageName: string, version: string) => {
+    const handleVersionChange = useCallback((packageName: string, version: string) => {
         const newSelections = new Map(versionSelections);
         newSelections.set(packageName, version);
         setVersionSelections(newSelections);
@@ -505,7 +514,7 @@ export function PackageDetails() {
         } else {
             toast.info(`${packageName} → ${version}`);
         }
-    };
+    }, [versionSelections, analysisResults, nodeVersion]);
 
     useEffect(() => {
         if (analysisResults.length > 0) {
@@ -995,44 +1004,69 @@ export function PackageDetails() {
         }
     }
 
-    const selectedPkgs = packages.filter(p => selectedPackages.has(p.name));
-    const filteredVersions = nodeVersions.filter(v => {
-        const searchLower = nodeVersionSearch.toLowerCase();
-        const matchesVersion = v.version.toLowerCase().includes(searchLower);
-        const matchesLtsName = typeof v.lts === 'string' && v.lts.toLowerCase().includes(searchLower);
-        const matchesLtsKeyword = v.lts && searchLower.includes('lts');
-        return matchesVersion || matchesLtsName || matchesLtsKeyword;
-    });
+    const selectedPkgs = useMemo(() => 
+        packages.filter(p => selectedPackages.has(p.name)),
+        [packages, selectedPackages]
+    );
+    
+    const filteredVersions = useMemo(() => 
+        nodeVersions.filter(v => {
+            const searchLower = nodeVersionSearch.toLowerCase();
+            const matchesVersion = v.version.toLowerCase().includes(searchLower);
+            const matchesLtsName = typeof v.lts === 'string' && v.lts.toLowerCase().includes(searchLower);
+            const matchesLtsKeyword = v.lts && searchLower.includes('lts');
+            return matchesVersion || matchesLtsName || matchesLtsKeyword;
+        }),
+        [nodeVersions, nodeVersionSearch]
+    );
 
-    const selectedVersionInfo = nodeVersions.find(v => v.version.replace('v', '') === nodeVersion);
+    const selectedVersionInfo = useMemo(() => 
+        nodeVersions.find(v => v.version.replace('v', '') === nodeVersion),
+        [nodeVersions, nodeVersion]
+    );
 
     // Count issues
-    const compatibilityIssues = analysisResults.filter(r => !r.nodeCompatible || (r.peerConflicts && r.peerConflicts.length > 0)).length;
-    const modifiedPackages = analysisResults.filter(r => r.selectedVersion && r.selectedVersion !== r.currentVersion).length;
+    const compatibilityIssues = useMemo(() => 
+        analysisResults.filter(r => !r.nodeCompatible || (r.peerConflicts && r.peerConflicts.length > 0)).length,
+        [analysisResults]
+    );
+    
+    const modifiedPackages = useMemo(() => 
+        analysisResults.filter(r => r.selectedVersion && r.selectedVersion !== r.currentVersion).length,
+        [analysisResults]
+    );
     
     // Get packages with compatibility issues among modified packages
-    const modifiedWithIssues = analysisResults.filter(r => 
-        r.selectedVersion && 
-        r.selectedVersion !== r.currentVersion &&
-        (!r.nodeCompatible || (r.peerConflicts && r.peerConflicts.length > 0))
+    const modifiedWithIssues = useMemo(() => 
+        analysisResults.filter(r => 
+            r.selectedVersion && 
+            r.selectedVersion !== r.currentVersion &&
+            (!r.nodeCompatible || (r.peerConflicts && r.peerConflicts.length > 0))
+        ),
+        [analysisResults]
     );
     
     // Get unmodified packages with issues
-    const unmodifiedWithIssues = analysisResults.filter(r => 
-        (!r.selectedVersion || r.selectedVersion === r.currentVersion) &&
-        (!r.nodeCompatible || (r.peerConflicts && r.peerConflicts.length > 0))
+    const unmodifiedWithIssues = useMemo(() => 
+        analysisResults.filter(r => 
+            (!r.selectedVersion || r.selectedVersion === r.currentVersion) &&
+            (!r.nodeCompatible || (r.peerConflicts && r.peerConflicts.length > 0))
+        ),
+        [analysisResults]
     );
     
     // Generate npm install command
-    const generateUpgradeCommand = () => {
+    const upgradeCommand = useMemo(() => {
         const modifiedPkgs = analysisResults.filter(r => r.selectedVersion && r.selectedVersion !== r.currentVersion);
         if (modifiedPkgs.length === 0) return '';
         
         const packages = modifiedPkgs.map(pkg => `${pkg.name}@${pkg.selectedVersion}`).join(' ');
         return `npm install ${packages}`;
-    };
+    }, [analysisResults]);
     
-    const copyToClipboard = async (text: string) => {
+    const generateUpgradeCommand = () => upgradeCommand;
+    
+    const copyToClipboard = useCallback(async (text: string) => {
         try {
             await navigator.clipboard.writeText(text);
             setCopiedCommand(true);
@@ -1041,7 +1075,7 @@ export function PackageDetails() {
         } catch (err) {
             toast.error('Failed to copy to clipboard');
         }
-    };
+    }, []);
 
     return (
         <div className="bg-background">