Frontend updates: caching basic data (json) from CDragon

Implement caching in the patch_detector, consume the cache from API routes in frontend

dev/package.json

@@ -9,7 +9,8 @@
     "import-matches": "node scripts/setup-db.js import-matches",
     "import-patches": "node scripts/setup-db.js import-patches",
     "generate-stats": "node scripts/setup-db.js generate-stats",
-    "status": "node scripts/setup-db.js status"
+    "status": "node scripts/setup-db.js status",
+    "fetch-cdragon": "node scripts/fetch-cdragon.js"
   },
   "dependencies": {
     "mongodb": "^6.10.0"

dev/scripts/fetch-cdragon.js

@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+
+import { spawn } from 'child_process';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// Cache directory - use dev/cdragon by default
+const cacheDir = process.env.CDRAGON_CACHE_DIR || path.join(__dirname, '..', 'data', 'cdragon');
+
+// Dev MongoDB credentials (matching docker-compose.yml defaults)
+const mongoUser = process.env.MONGO_USER || 'root';
+const mongoPass = process.env.MONGO_PASS || 'password';
+const mongoHost = process.env.MONGO_HOST || 'localhost:27017';
+
+// Run patch_detector with the cache directory and dev MongoDB credentials
+const patchDetector = spawn('npx', ['tsx', '../patch_detector/index.ts'], {
+  cwd: path.join(__dirname, '..'),
+  env: {
+    ...process.env,
+    NODE_ENV: 'development',
+    CDRAGON_CACHE_DIR: cacheDir,
+    MONGO_USER: mongoUser,
+    MONGO_PASS: mongoPass,
+    MONGO_HOST: mongoHost
+  },
+  stdio: 'inherit'
+});
+
+patchDetector.on('close', (code) => {
+  process.exit(code || 0);
+});

dev/scripts/setup-db.js

@@ -23,7 +23,7 @@ async function setupDatabase() {
   const patchFile = path.join(dataDir, "patches.json");
   if(!fs.existsSync(dataDir) || !fs.existsSync(patchFile)) {
     fs.mkdirSync(dataDir, { recursive: true });
-    console.log('📥 No data files found. Downloading latest snapshot...');
+    console.log('🚫 No data files found. Downloading latest snapshot...');
     await downloadAndExtractSnapshot();
   }
 
@@ -90,7 +90,11 @@ async function setupDatabase() {
     console.log('✅ Skipping matches import - sufficient data already present');
   }
 
-  // 7. Run match collector to generate stats
+  // 7. Fetch CDragon data for the current patch
+  console.log('🎮 Fetching CDragon data...');
+  await fetchCDragonData();
+
+  // 8. Run match collector to generate stats
   console.log('📊 Generating champion stats...');
   await generateChampionStats();
 
@@ -322,6 +326,24 @@ async function generateChampionStats() {
   }
 }
 
+async function fetchCDragonData() {
+  try {
+    console.log('🔄 Running CDragon fetcher...');
+
+    // Run the fetch-cdragon script
+    const fetchCDragonPath = path.join(__dirname, 'fetch-cdragon.js');
+    execSync(`node ${fetchCDragonPath}`, {
+      stdio: 'inherit',
+      cwd: path.join(__dirname, '..')
+    });
+
+    console.log('✅ CDragon data fetched');
+  } catch (error) {
+    console.error('❌ Failed to fetch CDragon data:', error);
+    throw error;
+  }
+}
+
 async function getMatchCount(patchVersion) {
   const client = new MongoClient(getMongoUri());
   await client.connect();