config

type DatabaseConfig struct {
	Driver          string `yaml:"driver"`          // sqlite (default) | mysql | postgres
	Path            string `yaml:"path"`            // SQLite file path, default: ./data.db (only used when driver=sqlite)
	DSN             string `yaml:"dsn"`             // MySQL/PostgreSQL DSN, e.g. "user:pass@tcp(host:3306)/db?parseTime=True"
	MaxOpenConns    int    `yaml:"maxOpenConns"`    // default: 10
	MaxIdleConns    int    `yaml:"maxIdleConns"`    // default: 5
	ConnMaxLifetime int    `yaml:"connMaxLifetime"` // seconds, default: 300
}

type LogConfig struct {
	Filename   string `yaml:"filename"`   // log file path, default: ./log/app.log
	MaxSize    int    `yaml:"maxSize"`    // MB per file, default: 20
	MaxBackups int    `yaml:"maxBackups"` // number of backups, default: 3
	MaxAge     int    `yaml:"maxAge"`     // days to retain, default: 1
	Compress   bool   `yaml:"compress"`   // gzip old files, default: true
}

type PipelineConfig struct {
	BatchSize   int `yaml:"batchSize"`   // default: 1000
	ChannelSize int `yaml:"channelSize"` // default: 10000
}