v1 finished. Gonna build a dockerfile later

db_management/db_management.go

@@ -0,0 +1,48 @@
+package db_management
+
+import (
+	"database/sql"
+	"time"
+
+	_ "modernc.org/sqlite"
+)
+
+var DB *sql.DB
+
+func InitDB() {
+	var err error
+	// Öffnet bot.db im aktuellen Verzeichnis
+	DB, err = sql.Open("sqlite", "./bot.db")
+	if err != nil {
+		panic(err)
+	}
+
+	// Tabelle für einzelne Sessions
+	statement := `
+    CREATE TABLE IF NOT EXISTS voice_sessions (
+        user_id TEXT,
+        seconds INTEGER,
+        created_at TIMESTAMP
+    );`
+	_, err = DB.Exec(statement)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func SaveSession(userID string, seconds int) {
+	query := `INSERT INTO voice_sessions (user_id, seconds, created_at) VALUES (?, ?, ?)`
+	DB.Exec(query, userID, seconds, time.Now())
+}
+
+func GetUserStats(userID string) int {
+	var total sql.NullInt64 // NullInt64 fängt NULL-Ergebnisse ab
+	query := `SELECT SUM(seconds) FROM voice_sessions 
+              WHERE user_id = ? AND created_at > date('now', '-30 days')`
+
+	err := DB.QueryRow(query, userID).Scan(&total)
+	if err != nil || !total.Valid {
+		return 0
+	}
+	return int(total.Int64)
+}