middleware

type DatabaseMetricsConfig struct {
	Enabled                 bool          `yaml:"enabled" json:"enabled"`
	CollectConnectionStats  bool          `yaml:"collect_connection_stats" json:"collect_connection_stats"`
	CollectQueryStats       bool          `yaml:"collect_query_stats" json:"collect_query_stats"`
	CollectTransactionStats bool          `yaml:"collect_transaction_stats" json:"collect_transaction_stats"`
	CollectMigrationStats   bool          `yaml:"collect_migration_stats" json:"collect_migration_stats"`
	CollectSlowQueries      bool          `yaml:"collect_slow_queries" json:"collect_slow_queries"`
	SlowQueryThreshold      time.Duration `yaml:"slow_query_threshold" json:"slow_query_threshold"`
	GroupByTable            bool          `yaml:"group_by_table" json:"group_by_table"`
	GroupByOperation        bool          `yaml:"group_by_operation" json:"group_by_operation"`
	MaxTableNames           int           `yaml:"max_table_names" json:"max_table_names"`
	NormalizeQueries        bool          `yaml:"normalize_queries" json:"normalize_queries"`
	LogSlowQueries          bool          `yaml:"log_slow_queries" json:"log_slow_queries"`
	StatsInterval           time.Duration `yaml:"stats_interval" json:"stats_interval"`
}

type DatabaseMetricsMiddleware struct {
	// contains filtered or unexported fields
}

type MetricsDB struct {
	*sql.DB
	// contains filtered or unexported fields
}

type MetricsTx struct {
	*sql.Tx
	// contains filtered or unexported fields
}

type MigrationInfo struct {
	Database  string
	Name      string
	Direction string // "up" or "down"
	Duration  time.Duration
	Error     error
}

type QueryInfo struct {
	Database     string
	Table        string
	Operation    string
	Query        string
	Duration     time.Duration
	RowsAffected int64
	RowsReturned int64
	Error        error
}

type TransactionInfo struct {
	Database string
	Duration time.Duration
	Rollback bool
	Error    error
}