tsk-8: Added docker support (#13)

Closes #8

Reviewed-on: phoenix/textsender-auth#13
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/config/config.go

@@ -27,11 +27,9 @@ type ConnectionInfo struct {
 	SslMode  string
 }
 
-
 const Port = "9080"
 const App_Name = "textsender_auth"
 
-
 func (ci ConnectionInfo) Parse() string {
 	return fmt.Sprintf("postgres://%s:%s@%s:%d/%s?sslmode=%s", ci.Username, ci.Password, ci.Host, ci.Port, ci.Database, ci.SslMode)
 }

internal/db/connection.go

@@ -54,6 +54,25 @@ func NewDatabase(connString string) (*Database, error) {
 	return &Database{Pool: pool}, nil
 }
 
+func TableExists(ctx context.Context, conn *pgxpool.Pool, tableName string) (bool, error) {
+	var exists bool
+
+	query := `
+        SELECT EXISTS (
+            SELECT FROM information_schema.tables
+            WHERE table_schema = 'public'
+            AND table_name = $1
+        );
+    `
+
+	err := conn.QueryRow(ctx, query, tableName).Scan(&exists)
+	if err != nil {
+		return false, fmt.Errorf("error checking if table exists: %w", err)
+	}
+
+	return exists, nil
+}
+
 func (db *Database) Close() {
 	if db.Pool != nil {
 		db.Pool.Close()