flutter 상위 구조로 포함. infra 분리 리팩토링

backend/internal/audit/audit.go

@@ -0,0 +1,53 @@
+package audit
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/ClickHouse/clickhouse-go/v2"
+	"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
+)
+
+type AuditLogger struct {
+	conn driver.Conn
+}
+
+func NewAuditLogger(host string, port int, user, password, db string) (*AuditLogger, error) {
+	conn, err := clickhouse.Open(&clickhouse.Options{
+		Addr: []string{fmt.Sprintf("%s:%d", host, port)},
+		Auth: clickhouse.Auth{
+			Database: db,
+			Username: user,
+			Password: password,
+		},
+		Debug: true,
+	})
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to open clickhouse connection: %w", err)
+	}
+
+	if err := conn.Ping(context.Background()); err != nil {
+		return nil, fmt.Errorf("failed to ping clickhouse: %w", err)
+	}
+
+	return &AuditLogger{conn: conn}, nil
+}
+
+func (l *AuditLogger) CreateSchema(ctx context.Context) error {
+	query := `
+	CREATE TABLE IF NOT EXISTS audit_logs (
+		timestamp DateTime DEFAULT now(),
+		user_id String,
+		event_type String,
+		status String,
+		ip_address String,
+		user_agent String,
+		details String
+	) ENGINE = MergeTree()
+	ORDER BY timestamp
+	`
+	return l.conn.Exec(ctx, query)
+}