package config

import (
	"os"
	"strconv"
)

// Config 激光合成服务配置
type Config struct {
	Port    string
	OSS     OSSConfig
	Logging LoggingConfig
}

type OSSConfig struct {
	Region          string
	BucketName      string
	AccessKeyID     string
	AccessKeySecret string
	AssetDir        string
}

type LoggingConfig struct {
	Environment string
	LogLevel    string
}

// Load 从环境变量加载配置
func Load() *Config {
	return &Config{
		Port: getEnv("COMPOSITOR_PORT", "7000"),
		OSS: OSSConfig{
			Region:          getEnv("OSS_REGION", "cn-shanghai"),
			BucketName:      getEnv("OSS_BUCKET_NAME", "top-fans-test"),
			AccessKeyID:     getEnv("OSS_ACCESS_KEY_ID", ""),
			AccessKeySecret: getEnv("OSS_ACCESS_KEY_SECRET", ""),
			AssetDir:        getEnv("OSS_ASSET_DIR", "asset/"),
		},
		Logging: LoggingConfig{
			Environment: getEnv("ENV", "development"),
			LogLevel:    getEnv("LOG_LEVEL", "info"),
		},
	}
}

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

func getEnvInt(key string, defaultValue int) int {
	if value := os.Getenv(key); value != "" {
		if v, err := strconv.Atoi(value); err == nil {
			return v
		}
	}
	return defaultValue
}