Allow collecting data from EUNE, NA, KR on top of EUW

- match_collector: query API and build collections for each platform
- match_collector: aggregate champion stats of each platform in one collection with platform annotations
- frontend: replace stats to count matches in platform-specific collections
- frontend: replace "EUW Challengers" with all supported platforms
- dev: adapted scripts to count match in platforms

frontend/server/api/stats.ts

@@ -1,19 +1,43 @@
 import type { MongoClient } from 'mongodb'
-import { connectToDatabase, fetchLatestPatch } from '../utils/mongo'
+import { connectToDatabase, fetchLatestPatch, getAvailablePlatforms } from '../utils/mongo'
 
 async function fetchGameCount(client: MongoClient, patch: string) {
   const database = client.db('matches')
+
+  // Check for platform-specific collections
+  const platforms = await getAvailablePlatforms(client, patch)
+
+  if (platforms.length > 0) {
+    // Sum counts from all platform-specific collections
+    let totalCount = 0
+    const platformCounts: Record<string, number> = {}
+
+    for (const platform of platforms) {
+      const collection = database.collection(`${patch}_${platform}`)
+      const count = await collection.countDocuments()
+      platformCounts[platform] = count
+      totalCount += count
+    }
+
+    return { total: totalCount, platforms: platformCounts }
+  }
+
+  // Fall back to old format (single collection)
   const matches = database.collection(patch)
   const count = await matches.countDocuments()
-  return count
+  return { total: count, platforms: {} }
 }
 
 export default defineEventHandler(async _ => {
   const client = await connectToDatabase()
   const latestPatch = await fetchLatestPatch(client)
-  const gameCount = await fetchGameCount(client, latestPatch)
+  const gameCountData = await fetchGameCount(client, latestPatch)
 
   await client.close()
 
-  return { patch: latestPatch, count: gameCount }
+  return {
+    patch: latestPatch,
+    count: gameCountData.total,
+    platformCounts: gameCountData.platforms
+  }
 })