Added lanes (first try)

match_collector/champion_stat.ts

@@ -141,6 +141,7 @@ async function championInfos(client, patch: number, champion: Champion) {
     let winningMatches = 0;
     let losingMatches = 0;
     let totalMatches = 0;
+    const lanes : Array<{data: string, count: number}> = [];
     const runes : Array<Rune> = [];
     const builds : Builds = {tree:treeInit(), start: [], bootsFirst: 0, boots: [], lateGame: []}
     for await (let match of allMatches) {
@@ -156,6 +157,12 @@ async function championInfos(client, patch: number, champion: Champion) {
             else
                 losingMatches += 1;
 
+            // Lanes
+            // TODO: make stats lane-dependant
+            const already = lanes.find((x) => x.data == participant.teamPosition)
+            if(already == undefined) lanes.push({count:1, data: participant.teamPosition})
+            else already.count += 1
+
             // Runes
             handleParticipantRunes(participant, runes)
             
@@ -168,6 +175,9 @@ async function championInfos(client, patch: number, champion: Champion) {
 
     let totalChampionMatches = winningMatches + losingMatches;
 
+    lanes.sort((a, b) => b.count - a.count)
+    arrayRemovePercentage(lanes, totalChampionMatches, 0.15)
+
     // Filter runes to keep 3 most played
     runes.sort((a, b) => b.count - a.count)
     if(runes.length > 3)
@@ -198,6 +208,7 @@ async function championInfos(client, patch: number, champion: Champion) {
     return {name: champion.name,
             alias: champion.alias.toLowerCase(),
             id: championId,
+            lanes: lanes,
             winrate: winningMatches / totalChampionMatches, 
             gameCount: totalChampionMatches,
             pickrate: totalChampionMatches/totalMatches,
@@ -236,7 +247,6 @@ async function makeChampionsStats(client, patch : number) {
 
     const database = client.db("champions")
     const collection = database.collection(patch)
-    await collection.createIndex({id:1})
     await collection.createIndex({alias:1})
 }