Bestenliste und Scores gespeichert und beim Ende eines Spiel Rang anzeige

backend/src/Database/DataBaseManager.js

@@ -1,5 +1,6 @@
 const mySql = require("mysql2");
 const UserManager = require("./UserManager/UserManager");
+const ScoreManager = require("./ScoreManager/ScoreManager");
 require("dotenv").config();
 
 class DataBaseManager {
@@ -20,6 +21,7 @@ class DataBaseManager {
         });
 
         this.usermanager = new UserManager(this.connection);
+        this.scoremanager = new ScoreManager(this.connection);
     }
 }
 

backend/src/Database/ScoreManager/Score.js

@@ -0,0 +1,12 @@
+class Score{
+    /** @param {UserManager} usermanager */
+    constructor(scoreJson){
+        this.id = scoreJson.id;
+        this.user1ID = scoreJson.user1;
+        this.user2ID = scoreJson.user2;
+        this.score = scoreJson.score;
+        this.time = new Date(scoreJson.time);
+    }
+}
+
+module.exports = Score;

backend/src/Database/ScoreManager/ScoreManager.js

@@ -0,0 +1,44 @@
+const mySql = require("mysql2");
+const Score = require("./Score");
+
+class ScoreManager{
+    /**@param {mySql.Connection} connection*/
+    constructor(connection) {
+        this.connection = connection;
+    }
+
+    async getAllScores(){
+        const response = await this.connection.promise().query("SELECT * FROM scores ORDER BY score DESC");
+        const sortedScores = response[0].map(scoreData => new Score(scoreData));
+
+        return sortedScores;
+    }
+
+    async createScore(newScoreJson){
+        const sql = `INSERT INTO scores (user1, user2, score) VALUES (
+            ${newScoreJson.user1}, ${newScoreJson.user2}, ${newScoreJson.score})`;
+        
+        const insertResult = await this.connection.promise().query(sql);
+        const insertId = insertResult[0].insertId;
+        
+        const selectSql = `SELECT * FROM scores WHERE id = ${insertId}`;
+        const selectResult = await this.connection.promise().query(selectSql);
+        
+        return new Score(selectResult[0][0]);
+    }
+
+    async getScoreById(id){
+        const response = await this.connection.promise().query(`SELECT * FROM scores WHERE id = ${id}`);
+        return new Score(response.rows[0][0]);
+    }
+
+    async getScoreRang(id){
+        const allSortetScores = await this.getAllScores();
+
+        const score = allSortetScores.find(score => score.id === id);
+
+        return allSortetScores.indexOf(score) + 1;
+    }
+}
+
+module.exports = ScoreManager;