package worker

import "time"

// Config holds worker pool settings.
type Config struct {
	// PoolSize is the number of concurrent goroutines. Default: 5.
	PoolSize int `env:"EINHERJAR_WORKER_POOL_SIZE" envDefault:"5"`
	// BufferSize is the task queue capacity. Default: 100.
	BufferSize int `env:"EINHERJAR_WORKER_BUFFER_SIZE" envDefault:"100"`
	// TaskTimeout is the maximum duration for a single task. Zero means no deadline.
	TaskTimeout time.Duration `env:"EINHERJAR_WORKER_TASK_TIMEOUT" envDefault:"0s"`
	// ShutdownTimeout is how long OnStop waits for goroutines to drain. Default: 30s.
	ShutdownTimeout time.Duration `env:"EINHERJAR_WORKER_SHUTDOWN_TIMEOUT" envDefault:"30s"`
}

// DefaultConfig returns a production-safe worker pool configuration.
func DefaultConfig() Config {
	return Config{
		PoolSize:        5,
		BufferSize:      100,
		TaskTimeout:     0,
		ShutdownTimeout: 30 * time.Second,
	}
}