package env

import (
	"os"
	"strconv"
	"strings"
	"time"
)

func getEnv(key, defaultVal string) string {
	if value := os.Getenv(key); value != "" {
		return value
	}
	return defaultVal
}

func getEnvBool(key string, defaultVal bool) bool {
	if value := os.Getenv(key); value != "" {
		if parsed, err := strconv.ParseBool(value); err == nil {
			return parsed
		}
	}
	return defaultVal
}

func getEnvDuration(key string, defaultVal time.Duration) time.Duration {
	if value := os.Getenv(key); value != "" {
		if parsed, err := time.ParseDuration(value); err == nil {
			return parsed
		}
	}
	return defaultVal
}

func getEnvInt(key string, defaultVal int64) int64 {
	if value := os.Getenv(key); value != "" {
		if parsed, err := strconv.ParseInt(value, 10, 64); err == nil {
			return parsed
		}
	}
	return defaultVal
}

func getEnvFloat(key string, defaultVal float64) float64 {
	if value := os.Getenv(key); value != "" {
		if parsed, err := strconv.ParseFloat(value, 64); err == nil {
			return parsed
		}
	}
	return defaultVal
}

func getEnvStringSlice(key string, defaultVal []string) []string {
	if value := os.Getenv(key); value != "" {
		parts := strings.Split(value, ",")
		result := make([]string, 0, len(parts))
		for _, part := range parts {
			trimmed := strings.TrimSpace(part)
			if trimmed != "" {
				result = append(result, trimmed)
			}
		}
		return result
	}
	return defaultVal
}

func getEnvUint(key string, defaultVal uint64) uint64 {
	if value := os.Getenv(key); value != "" {
		if parsed, err := strconv.ParseUint(value, 10, 64); err == nil {
			return parsed
		}
	}
	return defaultVal
}