feat(adapter): added adapter mysql

packages/database/src/mysql/index.js

@@ -0,0 +1,76 @@
+require('dotenv').config()
+const mysql = require('mysql2')
+
+const DB_NAME = process.env.DB_NAME || 'db_bot'
+const DB_HOST = process.env.DB_HOST || 'localhost'
+const DB_USER = process.env.DB_USER || 'root'
+
+class MyslAdapter {
+    db
+    listHistory = []
+
+    constructor() {
+        this.init().then()
+    }
+
+    async init() {
+        this.db = mysql.createConnection({
+            host: DB_HOST,
+            user: DB_USER,
+            database: DB_NAME,
+        })
+
+        await this.db.connect((error) => {
+            if (!error) {
+                console.log(`Solicitud de conexión a base de datos exitosa`)
+            }
+
+            if (error) {
+                console.log(`Solicitud de conexión fallida ${error.stack}`)
+            }
+        })
+    }
+
+    getPrevByNumber = (from) =>
+        new Promise((resolve, reject) => {
+            const sql = `SELECT * FROM history WHERE phone=${from} ORDER BY id DESC`
+            this.db.query(sql, (error, rows) => {
+                if (error) {
+                    reject(error)
+                }
+
+                if (rows.length) {
+                    const [row] = rows
+                    row.options = JSON.parse(row.options)
+                    resolve(row)
+                }
+
+                if (!rows.length) {
+                    resolve(null)
+                }
+            })
+        })
+
+    save = (ctx) => {
+        const values = [
+            [
+                ctx.ref,
+                ctx.keyword,
+                ctx.answer,
+                ctx.refSerialize,
+                ctx.from,
+                JSON.stringify(ctx.options),
+            ],
+        ]
+        const sql =
+            'INSERT INTO history (ref, keyword, answer, refSerialize, phone, options ) values ?'
+
+        this.db.query(sql, [values], (err) => {
+            if (err) throw err
+            console.log('Guardado en DB...', values)
+        })
+        this.listHistory.push(ctx)
+    }
+}
+
+module.exports = MyslAdapter