package cloud

// CloudBillingRecord 云账单同步记录（跨平台统一结构） // Logan.Li
type CloudBillingRecord struct {
	BillingDate string  `json:"billing_date"`
	Provider    string  `json:"provider"`
	Cost        float64 `json:"cost"`
	Currency    string  `json:"currency"`
	Service     string  `json:"service"`
	Region      string  `json:"region"`
	Description string  `json:"description"`
}

// BillingFetcher 云账单拉取接口
type BillingFetcher interface {
	FetchDailyBill(billingDate string) ([]CloudBillingRecord, error)
}

// SupportedBillingProviders 已接入账单 API 的云厂商列表。 // Logan.Li
var SupportedBillingProviders = []string{"aliyun", "tencent", "aws", "huawei", "azure"}

// NewBillingFetcher 根据云厂商创建账单拉取器
func NewBillingFetcher(provider, accessKey, secretKey string) BillingFetcher {
	switch provider {
	case "aliyun":
		return NewAliyunProvider(accessKey, secretKey)
	case "tencent":
		return NewTencentProvider(accessKey, secretKey)
	case "aws":
		return NewAWSProvider(accessKey, secretKey)
	case "huawei":
		return NewHuaweiProvider(accessKey, secretKey)
	case "azure":
		return NewAzureProvider(accessKey, secretKey)
	}
	return nil
}