package gcconfig

import (
	"time"

	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
)

// Config is a wrapper over the config section
// which provides access to Shard's GC configurations.
type Config config.Config

const (
	// RemoverBatchSizeDefault is a default batch size for Shard GC's remover.
	RemoverBatchSizeDefault = 100

	// RemoverSleepIntervalDefault is a default sleep interval of Shard GC's remover.
	RemoverSleepIntervalDefault = time.Minute

	// ExpiredCollectorWorkersCountDefault is a default workers count of Shard GC expired object collector.
	ExpiredCollectorWorkersCountDefault = 5

	// ExpiredCollectorBatchSizeDefault is a default batch size of Shard GC expired object collector.
	ExpiredCollectorBatchSizeDefault = 500
)

// From wraps config section into Config.
func From(c *config.Config) *Config {
	return (*Config)(c)
}

// RemoverBatchSize returns the value of "remover_batch_size"
// config parameter.
//
// Returns RemoverBatchSizeDefault if the value is not a positive number.
func (x *Config) RemoverBatchSize() int {
	s := config.IntSafe(
		(*config.Config)(x),
		"remover_batch_size",
	)

	if s > 0 {
		return int(s)
	}

	return RemoverBatchSizeDefault
}

// RemoverSleepInterval returns the value of "remover_sleep_interval"
// config parameter.
//
// Returns RemoverSleepIntervalDefault if the value is not a positive number.
func (x *Config) RemoverSleepInterval() time.Duration {
	s := config.DurationSafe(
		(*config.Config)(x),
		"remover_sleep_interval",
	)

	if s > 0 {
		return s
	}

	return RemoverSleepIntervalDefault
}

// ExpiredCollectorWorkerCount returns the value of "expired_collector_worker_count"
// config parameter.
//
// Returns ExpiredCollectorWorkersCountDefault if the value is not a positive number.
func (x *Config) ExpiredCollectorWorkerCount() int {
	s := config.IntSafe(
		(*config.Config)(x),
		"expired_collector_worker_count",
	)

	if s > 0 {
		return int(s)
	}

	return ExpiredCollectorWorkersCountDefault
}

// ExpiredCollectorBatchSize returns the value of "expired_collector_batch_size"
// config parameter.
//
// Returns ExpiredCollectorBatchSizeDefault if the value is not a positive number.
func (x *Config) ExpiredCollectorBatchSize() int {
	s := config.IntSafe(
		(*config.Config)(x),
		"expired_collector_batch_size",
	)

	if s > 0 {
		return int(s)
	}

	return ExpiredCollectorBatchSizeDefault
}