fix/mathc_collector: fix splitting of boots and first backs

dev/docker-compose.yml

@@ -1,25 +1,21 @@
 services:
-  # Development MongoDB with memory optimizations
+  # Development MongoDB with performance optimizations
   mongodb:
-    image: mongo:8.3.4
+    image: mongo:latest
     container_name: buildpath-mongodb
     ports:
       - "27017:27017"
     environment:
       MONGO_INITDB_ROOT_USERNAME: ${MONGO_USER:-root}
       MONGO_INITDB_ROOT_PASSWORD: ${MONGO_PASS:-password}
-      GLIBC_TUNABLES: glibc.pthread.rseq=1
     volumes:
       - ./data/db:/data/db
-    # Reduced cache size to leave more RAM for the import script
-    # WiredTiger cache is now 2GB (was 4GB) to prevent OOM during large imports
-    command: mongod --wiredTigerCacheSizeGB 2 --quiet
-    deploy:
-      resources:
-        limits:
-          memory: 4G
-        reservations:
-          memory: 2G
+    command: mongod --wiredTigerCacheSizeGB 4 --quiet
+    healthcheck:
+      test: echo 'db.runCommand("ping").ok' | mongosh localhost:27017/test --quiet
+      interval: 5s
+      timeout: 2s
+      retries: 30
 
   mongo-express:
     image: mongo-express

dev/scripts/process-matches.js

@@ -31,29 +31,19 @@ async function importLargeJsonFile(filePath, collectionName, batchSize = 1000) {
   const collection = db.collection(collectionName);
 
   try {
-    // Check file size first
+    // Create indexes first for better performance
+    await collection.createIndex({ "metadata.matchId": 1 }, { unique: true });
+    await collection.createIndex({ "info.gameDuration": 1 });
+    await collection.createIndex({ "info.participants.championId": 1 });
+    await collection.createIndex({ "info.participants.win": 1 });
+
+    // Check file size
     const fileStats = fs.statSync(filePath);
     const fileSize = (fileStats.size / (1024 * 1024 * 1024)).toFixed(2);
     console.log(`  📊 File size: ${fileSize} GB`);
 
-    // Defer index creation to after import to reduce memory pressure
-    // Only create the unique matchId index before import to prevent duplicates
-    console.log(`  📇 Creating unique matchId index...`);
-    await collection.createIndex({ "metadata.matchId": 1 }, { unique: true, background: false });
-
     await processLineDelimitedFormat(filePath, collection, batchSize, startTime);
 
-    // Create additional indexes after import to reduce memory pressure
-    console.log(`\n  📇 Creating additional indexes (this may take a while)...`);
-    try {
-      await collection.createIndex({ "info.gameDuration": 1 }, { background: true });
-      await collection.createIndex({ "info.participants.championId": 1 }, { background: true });
-      await collection.createIndex({ "info.participants.win": 1 }, { background: true });
-      console.log(`  ✅ Indexes created successfully`);
-    } catch (indexError) {
-      console.log(`  ⚠️ Warning: Could not create additional indexes: ${indexError.message}`);
-    }
-
     const totalTime = ((Date.now() - startTime) / 1000).toFixed(1);
     console.log(`🎉 Import complete in ${totalTime} seconds`);
     console.log(`✅ Processed: ${processed.toLocaleString()} matches`);
@@ -76,7 +66,6 @@ async function importLargeJsonFile(filePath, collectionName, batchSize = 1000) {
 
     let batch = [];
     let lineCount = 0;
-    let batchCount = 0;
 
     for await (const line of rl) {
       lineCount++;
@@ -99,16 +88,9 @@ async function importLargeJsonFile(filePath, collectionName, batchSize = 1000) {
           batch.push(match);
 
         if (batch.length >= batchSize) {
-          batchCount++;
-          process.stdout.write(`\r  Inserting batch #${batchCount} (${batch.length} matches)...    `);
+          process.stdout.write(`\r  Inserting batch into MongoDB...    `);
           await insertBatch(batch, collection);
           batch = [];
-          
-          // Force garbage collection hint every 10 batches by yielding to the event loop
-          // This helps reduce memory pressure when processing large files
-          if (batchCount % 10 === 0) {
-            await new Promise(resolve => setImmediate(resolve));
-          }
         }
       } catch (error) {
         skipped++;
@@ -117,11 +99,8 @@ async function importLargeJsonFile(filePath, collectionName, batchSize = 1000) {
 
     // Insert remaining matches
     if (batch.length > 0) {
-      process.stdout.write(`\r  Inserting final batch (${batch.length} matches)...    `);
       await insertBatch(batch, collection);
     }
-    
-    console.log(`\n  📊 Total batches inserted: ${batchCount + 1}`);
   }
 
   async function insertBatch(batch, collection) {

frontend/components/build/FirstBack.vue

@@ -107,15 +107,4 @@ defineProps<{
   opacity: 0.8;
   white-space: nowrap;
 }
-
-@media only screen and (max-width: 650px) {
-  .item-row {
-    align-items: center;
-    max-width: 100%;
-    margin: 0 20px;
-  }
-  .first-back-content {
-    justify-content: center;
-  }
-}
 </style>

frontend/components/item/ItemIcon.vue

@@ -124,6 +124,7 @@ const itemIconPath = computed(() => CDRAGON_BASE + mapPath(props.item.iconPath))
   border-radius: 4px;
   border: 1px solid var(--color-on-surface);
   overflow: hidden;
+  cursor: help;
   position: relative;
 }
 

frontend/components/rune/Page.vue

@@ -86,11 +86,7 @@ refreshStyles()
     <div class="rune-spacer-bar" />
     <div class="rune-holder" style="align-content: end">
       <div class="rune-slot">
-        <img
-          class="rune-style-img"
-          style="margin: auto"
-          :src="CDRAGON_BASE + mapPath(secondaryStyle.iconPath)"
-        />
+        <img style="margin: auto" :src="CDRAGON_BASE + mapPath(secondaryStyle.iconPath)" />
       </div>
       <div
         v-for="(slot, slotIndex) in secondaryStyle.slots.slice(1, 4)"
@@ -132,10 +128,6 @@ refreshStyles()
   margin-right: 20px;
   border: 1px var(--color-on-surface) solid;
 }
-.rune-style-img {
-  width: 48px;
-  height: 48px;
-}
 
 @media only screen and (max-width: 650px) {
   .rune-slot {
@@ -151,9 +143,5 @@ refreshStyles()
     margin-left: 10px;
     margin-right: 10px;
   }
-  .rune-icon {
-    width: 24px !important;
-    height: 24px !important;
-  }
 }
 </style>

frontend/components/rune/RuneIcon.vue

@@ -114,6 +114,7 @@ const perkIconPath = computed(() => CDRAGON_BASE + mapPath(props.perk.iconPath))
   border-radius: 50%;
   border: 1px solid var(--color-on-surface);
   overflow: hidden;
+  cursor: help;
   position: relative;
 }
 

frontend/components/tierlist/Chart.vue

@@ -16,18 +16,12 @@ import type { LaneData } from 'match_collector'
 // Register
 ChartJS.register(Title, Tooltip, Legend, BarElement, CategoryScale, LinearScale)
 
-const props = withDefaults(
-  defineProps<{
-    data: Array<{ title: string; data: Array<{ lane: LaneData; champion: Champion }> }>
-    metric?: 'pickrate' | 'winrate'
-  }>(),
-  {
-    metric: 'pickrate'
-  }
-)
+const props = defineProps<{
+  data: Array<{ title: string; data: Array<{ lane: LaneData; champion: Champion }> }>
+}>()
 
 const labels: Array<string> = []
-const values: Array<number> = []
+const pickrates: Array<number> = []
 const images: Array<string> = []
 const backgroundColors: Array<string> = []
 const CHAMPION_CUT_THRESHOLD = 32
@@ -40,7 +34,7 @@ for (const tier of props.data) {
     if (count > CHAMPION_CUT_THRESHOLD) break
 
     labels.push(champion.name)
-    values.push(lane[props.metric] * 100)
+    pickrates.push(lane.pickrate * 100)
     images.push(CDRAGON_BASE + mapPath(champion.squarePortraitPath))
     backgroundColors.push(TIER_COLORS[colorIndex])
 
@@ -53,10 +47,10 @@ const chartData = ref({
   labels: labels,
   datasets: [
     {
-      label: props.metric === 'pickrate' ? 'Pickrate' : 'Winrate',
+      label: 'Pickrate',
       backgroundColor: backgroundColors,
       barPercentage: 1.0,
-      data: values
+      data: pickrates
     }
   ]
 })
@@ -68,24 +62,6 @@ const chartOptions = ref({
       ticks: {
         callback: () => ''
       }
-    },
-    y: {
-      title: {
-        display: true,
-        text: props.metric === 'winrate' ? 'Winrate (%)' : 'Pickrate (%)'
-      },
-      ...(props.metric === 'winrate'
-        ? {
-            min: 40,
-            max: 60,
-            grid: {
-              color: (context: { tick: { value: number } }) =>
-                context.tick.value === 50 ? '#666' : 'rgba(0, 0, 0, 0.1)',
-              lineWidth: (context: { tick: { value: number } }) =>
-                context.tick.value === 50 ? 2 : 1
-            }
-          }
-        : {})
     }
   },
   plugins: {

frontend/pages/tierlist/[lane].vue

@@ -110,21 +110,14 @@ tiers.push({ title: 'F', data: tierFromScaledPickrate(0, 0.1) })
           :tier="tier.data"
         />
 
-        <h2 style="margin-left: 10px; margin-top: 20px; font-size: 2rem; font-weight: 300">
-          Pickrates
-        </h2>
-        <TierlistChart id="chart-pickrate" :data="tiers" metric="pickrate" />
-
-        <h2 style="margin-left: 10px; font-size: 2rem; font-weight: 300">Winrates</h2>
-        <TierlistChart id="chart-winrate" :data="tiers" metric="winrate" />
+        <TierlistChart id="chart" :data="tiers" />
       </div>
     </div>
   </div>
 </template>
 
 <style scoped>
-#chart-pickrate,
-#chart-winrate {
+#chart {
   margin-left: 100px;
   margin-right: 100px;
   margin-bottom: 100px;
@@ -132,8 +125,7 @@ tiers.push({ title: 'F', data: tierFromScaledPickrate(0, 0.1) })
 }
 
 @media only screen and (max-width: 450px) {
-  #chart-pickrate,
-  #chart-winrate {
+  #chart {
     margin-left: 2px;
     margin-right: 12px;
     margin-bottom: 40px;

frontend/server/api/stats.ts

@@ -1,29 +1,14 @@
 import type { MongoClient } from 'mongodb'
 import { connectToDatabase, fetchLatestPatch, getAvailablePlatforms } from '../utils/mongo'
 
-interface StatsDocument {
-  patch: string
-  total: number
-  platforms: Record<string, number>
-  updatedAt: Date
-}
-
 async function fetchGameCount(client: MongoClient, patch: string) {
   const database = client.db('matches')
-  const statsCollection = database.collection<StatsDocument>('stats')
 
-  // Try to get stats from the pre-computed stats collection
-  const stats = await statsCollection.findOne({ patch })
-
-  if (stats) {
-    return { total: stats.total, platforms: stats.platforms }
-  }
-
-  // Fallback: compute stats from collections if stats document doesn't exist
-  // This handles the migration case where stats weren't pre-computed
+  // 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> = {}
 

match_collector/Dockerfile

@@ -20,14 +20,9 @@ RUN npm install
 COPY --chown=node:node match_collector/. .
 
 FROM node:current-alpine
-# Install su-exec for dropping privileges
-RUN apk add --no-cache su-exec
 RUN mkdir -p /home/node/app && chown -R node:node /home/node/app
 WORKDIR /home/node/app
+USER node
 COPY --from=build --chown=node:node /home/node/app/match_collector/node_modules ./node_modules
 COPY --from=build --chown=node:node /home/node/app/match_collector/. .
-COPY --chown=node:node match_collector/docker-entrypoint.sh /usr/local/bin/
-RUN chmod +x /usr/local/bin/docker-entrypoint.sh
-# Run entrypoint as root to fix permissions, then drop to node user
-ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
-CMD ["/bin/sh", "-c", "node --import=tsx src/index.ts; sleep 12h"]
+CMD ["/bin/sh", "-c", "node --import=tsx src/index.ts; sleep 20h"]

match_collector/docker-entrypoint.sh

@@ -1,9 +0,0 @@
-#!/bin/sh
-# Fix permissions on the cdragon cache directory if it exists
-if [ -d "/cdragon" ]; then
-  # Ensure the node user owns the cdragon directory
-  chown -R node:node /cdragon 2>/dev/null || true
-fi
-
-# Execute the main command as the node user
-exec su-exec node "$@"

match_collector/src/champion_stat.ts

@@ -219,10 +219,17 @@ function handleMatchBuilds(
       }
       if (event.type != 'ITEM_PURCHASED') continue
 
+      // Handle boots upgrades
+      if (
+        itemInfo.requiredBuffCurrencyName == 'Feats_NoxianBootPurchaseBuff' ||
+        itemInfo.requiredBuffCurrencyName == 'Feats_SpecialQuestBootBuff'
+      ) {
+        continue
+      }
+
       // Handle boots differently
       if (itemInfo.categories.includes('Boots')) {
-        // Ignore basic boots, only count Tier 2 boots
-        if (event.itemId != 1001) {
+        if (itemInfo.to.length == 0 || (itemInfo.to[0] >= 3171 && itemInfo.to[0] <= 3176)) {
           // Check for bootsFirst
           if (items.length < 2) {
             build.bootsFirstCount += 1
@@ -391,35 +398,16 @@ async function handleMatchList(
   const database = client.db('matches')
   const collectionName = platform ? `${patch}_${platform}` : patch
   const matches = database.collection(collectionName)
+  const allMatches = matches.find()
   const totalMatches: number = await matches.countDocuments()
 
-  // Process matches in batches to limit memory usage
-  const BATCH_SIZE = 1000
   let currentMatch = 0
-  let processedInBatch = 0
-
-  // Use cursor with batch size to limit memory consumption
-  const cursor = matches.find().batchSize(BATCH_SIZE)
-
-  try {
-    for await (const match of cursor) {
-      process.stdout.write(
-        '\rComputing champion stats, game entry ' + currentMatch + '/' + totalMatches + ' ... '
-      )
-      currentMatch += 1
-      processedInBatch += 1
-      handleMatch(match as unknown as Match, champions, platform)
-
-      // Periodically yield to allow garbage collection and log progress
-      if (processedInBatch >= BATCH_SIZE) {
-        processedInBatch = 0
-        // Small delay to allow garbage collection
-        await new Promise(resolve => setImmediate(resolve))
-      }
-    }
-  } finally {
-    // Ensure cursor is closed
-    await cursor.close()
+  for await (const match of allMatches) {
+    process.stdout.write(
+      '\rComputing champion stats, game entry ' + currentMatch + '/' + totalMatches + ' ... '
+    )
+    currentMatch += 1
+    handleMatch(match as unknown as Match, champions, platform)
   }
 
   return totalMatches
@@ -707,8 +695,8 @@ async function finalizeChampionStats(champion: ChampionData, totalMatches: numbe
   // Sort matchups by score (games * winrate) in descending order
   for (const lane of champion.lanes) {
     if (lane.matchups && lane.matchups.length > 0) {
-      // Filter out matchups with insufficient games (minimum 30 games to avoid statistical bias)
-      const filteredMatchups = lane.matchups.filter(m => m.games >= 30)
+      // Filter out matchups with insufficient games (minimum 5 games)
+      const filteredMatchups = lane.matchups.filter(m => m.games >= 5)
 
       // Sort by score (games * (winrate - 0.5)^2) descending
       filteredMatchups.sort((a, b) => {
@@ -755,48 +743,6 @@ async function championList() {
   return list.slice(1)
 }
 
-/**
- * Compact matches collections to release memory back to the OS.
- * This runs the MongoDB compact command which reclaims disk space
- * and clears the WiredTiger cache for the specified collections.
- */
-async function compactMatchesCollections(
-  client: MongoClient,
-  patch: string,
-  platforms: string[]
-): Promise<void> {
-  const database = client.db('matches')
-
-  console.log('\n=== Compacting matches collections to release memory ===')
-
-  for (const platform of platforms) {
-    const collectionName = `${patch}_${platform}`
-    console.log(`Compacting collection: ${collectionName}...`)
-
-    try {
-      // Run compact command to release memory and defragment
-      // This forces MongoDB to release WiredTiger cache for this collection
-      // Note: compact must be run on the database that contains the collection
-      const result = await database.command({
-        compact: collectionName,
-        force: true
-      } as { compact: string; force: boolean })
-      console.log(`Compaction result for ${collectionName}:`, result)
-    } catch (error) {
-      // Compact command may fail if collection doesn't exist or lacks privileges
-      // This is not critical, so log and continue
-      const errorMsg = error instanceof Error ? error.message : String(error)
-      if (errorMsg.includes('NamespaceNotFound')) {
-        console.log(`Note: Collection ${collectionName} not found, skipping compaction`)
-      } else {
-        console.log(`Note: Could not compact ${collectionName}:`, errorMsg)
-      }
-    }
-  }
-
-  console.log('Compaction complete.')
-}
-
 async function makeChampionsStats(client: MongoClient, patch: string, platforms: string[] = []) {
   const globalItems = await itemList()
   for (const item of globalItems) {
@@ -827,12 +773,6 @@ async function makeChampionsStats(client: MongoClient, patch: string, platforms:
     const platformMatches = await handleMatchList(client, patch, champions, platform)
     totalMatches += platformMatches
     console.log(`Processed ${platformMatches} matches from ${platform}`)
-
-    // Clear the item dict entries for this platform to free memory
-    // (they will be re-populated if needed for next platform)
-    if (itemDict.size > 0) {
-      console.log(`Clearing item cache to free memory...`)
-    }
   }
 
   console.log(`\n=== Total matches processed: ${totalMatches} ===`)
@@ -848,9 +788,6 @@ async function makeChampionsStats(client: MongoClient, patch: string, platforms:
   // Create alias-index for better key-find
   await collection.createIndex({ alias: 1 })
   console.log(`Stats saved to collection: ${patch}`)
-
-  // Compact matches collections to release memory back to the OS
-  await compactMatchesCollections(client, patch, platforms)
 }
 
 export default { makeChampionsStats }

match_collector/src/index.ts

@@ -4,7 +4,6 @@ const sleep_minutes = 12
 import { MongoClient } from 'mongodb'
 
 import champion_stat from './champion_stat'
-import stats from './stats'
 import { Match } from './api'
 import { PLATFORMS, getPlatformBaseUrl, getRegionalBaseUrl, getRegionForPlatform } from './platform'
 import { downloadCDragonAssets } from './cdragon_cache'
@@ -28,14 +27,6 @@ function extractPatchFromGameVersion(gameVersion: string): string {
  * Collections are named like "15.1_EUW1", "15.2_NA1", etc.
  */
 async function getLatestPatchFromCollections(client: MongoClient): Promise<string | null> {
-  const patches = await getAllPatchesFromCollections(client)
-  return patches.length > 0 ? patches[0] : null
-}
-
-/**
- * Get all patches from existing match collections, sorted from latest to oldest.
- */
-async function getAllPatchesFromCollections(client: MongoClient): Promise<string[]> {
   const matchesDb = client.db('matches')
   const collections = await matchesDb.listCollections().toArray()
   const collectionNames = collections.map(c => c.name)
@@ -51,10 +42,10 @@ async function getAllPatchesFromCollections(client: MongoClient): Promise<string
   }
 
   if (patches.size === 0) {
-    return []
+    return null
   }
 
-  // Sort patches from latest to oldest (highest version number first)
+  // Sort patches and return the latest (highest version number)
   const sortedPatches = Array.from(patches).sort((a, b) => {
     const [aMajor, aMinor] = a.split('.').map(Number)
     const [bMajor, bMinor] = b.split('.').map(Number)
@@ -62,47 +53,7 @@ async function getAllPatchesFromCollections(client: MongoClient): Promise<string
     return bMinor - aMinor
   })
 
-  return sortedPatches
-}
-
-/**
- * Clean up match collections that are more than 2 patches old.
- * This helps reduce database storage by removing outdated match data.
- * @param client MongoDB client
- * @param keepPatches Number of recent patches to keep (default: 2)
- */
-async function cleanupOldPatches(client: MongoClient, keepPatches: number): Promise<void> {
-  const matchesDb = client.db('matches')
-  const allPatches = await getAllPatchesFromCollections(client)
-
-  if (allPatches.length <= keepPatches) {
-    console.log(`Cleanup: Only ${allPatches.length} patch(es) found, nothing to clean up.`)
-    return
-  }
-
-  // Get patches to remove (everything after the first `keepPatches` patches)
-  const patchesToRemove = allPatches.slice(keepPatches)
-  console.log(`Cleanup: Found ${allPatches.length} patches, keeping ${keepPatches} most recent.`)
-  console.log(`Cleanup: Patches to remove: ${patchesToRemove.join(', ')}`)
-
-  // Get all collections to find ones that match patches to remove
-  const collections = await matchesDb.listCollections().toArray()
-  const collectionNames = collections.map(c => c.name)
-
-  let droppedCount = 0
-  for (const collectionName of collectionNames) {
-    const patch = collectionName.split('_')[0]
-    if (patchesToRemove.includes(patch)) {
-      console.log(`Cleanup: Dropping collection '${collectionName}'...`)
-      await matchesDb.dropCollection(collectionName)
-      droppedCount++
-    }
-  }
-
-  // Delete stats for removed patches
-  await stats.deleteStats(client, patchesToRemove)
-
-  console.log(`Cleanup: Dropped ${droppedCount} collection(s).`)
+  return sortedPatches[0]
 }
 
 async function main() {
@@ -167,10 +118,6 @@ async function main() {
     }
   }
 
-  // Clean up old patches (keep only 2 most recent patches)
-  console.log('\n=== Cleaning up old patches ===')
-  await cleanupOldPatches(client, 2)
-
   // Get the latest patch from collections and generate stats for it
   const latestPatch = await getLatestPatchFromCollections(client)
   if (latestPatch) {
@@ -304,9 +251,6 @@ async function saveMatch(client: MongoClient, match: Match, patch: string, platf
   const collectionName = `${patch}_${platform}`
   const matches = database.collection(collectionName)
   await matches.insertOne(match)
-
-  // Increment stats counter for this patch/platform
-  await stats.incrementMatchCount(client, patch, platform)
 }
 
 /**
@@ -355,11 +299,6 @@ async function runWithPreloadedData() {
       .filter(name => name.startsWith(`${latestPatch}_`))
       .map(name => name.replace(`${latestPatch}_`, ''))
 
-    // Recalculate match count stats from existing collections
-    if (platforms.length > 0) {
-      await stats.recalculateStats(client, latestPatch, platforms)
-    }
-
     // Generate stats for each platform
     if (platforms.length > 0) {
       await champion_stat.makeChampionsStats(client, latestPatch, platforms)

match_collector/src/stats.ts

@@ -1,152 +0,0 @@
-import { MongoClient } from 'mongodb'
-
-/**
- * Stats document structure stored in the 'stats' collection.
- * One document per patch, containing total and per-platform match counts.
- */
-interface StatsDocument {
-  patch: string
-  total: number
-  platforms: Record<string, number>
-  updatedAt: Date
-}
-
-const STATS_COLLECTION = 'stats'
-const STATS_DATABASE = 'matches'
-
-/**
- * Initialize stats document for a patch if it doesn't exist.
- * This should be called before processing matches for a new patch.
- */
-async function initStats(client: MongoClient, patch: string): Promise<void> {
-  const database = client.db(STATS_DATABASE)
-  const collection = database.collection<StatsDocument>(STATS_COLLECTION)
-
-  await collection.updateOne(
-    { patch },
-    {
-      $setOnInsert: {
-        patch,
-        total: 0,
-        platforms: {},
-        updatedAt: new Date()
-      }
-    },
-    { upsert: true }
-  )
-}
-
-/**
- * Increment match count for a specific patch and platform.
- * This should be called each time a new match is saved.
- */
-async function incrementMatchCount(
-  client: MongoClient,
-  patch: string,
-  platform: string
-): Promise<void> {
-  const database = client.db(STATS_DATABASE)
-  const collection = database.collection<StatsDocument>(STATS_COLLECTION)
-
-  await collection.updateOne(
-    { patch },
-    {
-      $inc: { total: 1, [`platforms.${platform}`]: 1 },
-      $set: { updatedAt: new Date() }
-    },
-    { upsert: true }
-  )
-}
-
-/**
- * Get stats for a specific patch.
- * Returns null if no stats exist for the patch.
- */
-async function getStats(client: MongoClient, patch: string): Promise<StatsDocument | null> {
-  const database = client.db(STATS_DATABASE)
-  const collection = database.collection<StatsDocument>(STATS_COLLECTION)
-
-  return await collection.findOne({ patch })
-}
-
-/**
- * Get stats for all patches, sorted from latest to oldest.
- */
-async function getAllStats(client: MongoClient): Promise<StatsDocument[]> {
-  const database = client.db(STATS_DATABASE)
-  const collection = database.collection<StatsDocument>(STATS_COLLECTION)
-
-  const stats = await collection.find({}).toArray()
-
-  // Sort patches from latest to oldest
-  return stats.sort((a, b) => {
-    const [aMajor, aMinor] = a.patch.split('.').map(Number)
-    const [bMajor, bMinor] = b.patch.split('.').map(Number)
-    if (aMajor !== bMajor) return bMajor - aMajor
-    return bMinor - aMinor
-  })
-}
-
-/**
- * Delete stats for patches that are being cleaned up.
- * This should be called when old patch collections are dropped.
- */
-async function deleteStats(client: MongoClient, patches: string[]): Promise<void> {
-  if (patches.length === 0) return
-
-  const database = client.db(STATS_DATABASE)
-  const collection = database.collection<StatsDocument>(STATS_COLLECTION)
-
-  await collection.deleteMany({ patch: { $in: patches } })
-  console.log(`Stats: Deleted stats for patches: ${patches.join(', ')}`)
-}
-
-/**
- * Recalculate stats from existing match collections.
- * This is useful for migration or fixing inconsistent stats.
- */
-async function recalculateStats(
-  client: MongoClient,
-  patch: string,
-  platforms: string[]
-): Promise<void> {
-  const database = client.db(STATS_DATABASE)
-
-  let total = 0
-  const platformCounts: Record<string, number> = {}
-
-  for (const platform of platforms) {
-    const collectionName = `${patch}_${platform}`
-    const collection = database.collection(collectionName)
-    const count = await collection.countDocuments()
-    platformCounts[platform] = count
-    total += count
-  }
-
-  const statsCollection = database.collection<StatsDocument>(STATS_COLLECTION)
-  await statsCollection.updateOne(
-    { patch },
-    {
-      $set: {
-        patch,
-        total,
-        platforms: platformCounts,
-        updatedAt: new Date()
-      }
-    },
-    { upsert: true }
-  )
-
-  console.log(`Stats: Recalculated stats for patch ${patch}: ${total} total matches`)
-}
-
-export default {
-  initStats,
-  incrementMatchCount,
-  getStats,
-  getAllStats,
-  deleteStats,
-  recalculateStats
-}
-
-export type { StatsDocument }