package config

var ExtConfig Extend

// Extend 扩展配置
//
//	extend:
//	  demo:
//	    name: demo-name
//
// 使用方法： config.ExtConfig......即可！！
type Extend struct {
	AMap      AMap // 这里配置对应配置文件的结构即可
	FileStore FileStore
	RateLimit RateLimit
}

// DefaultInboundQPS is the limit applied when nothing is configured. It is the
// value that used to be hard-coded in the middleware, so an existing deployment
// that adds nothing to settings.yml keeps the behaviour it already had.
const DefaultInboundQPS = 200

// RateLimit 全局入站限流。
//
//	extend:
//	  ratelimit:
//	    inboundqps: 200   # 每秒入站请求上限；填 0 关闭限流
//
// The threshold used to live in common/middleware/sentinel.go as a constant,
// which made 200 QPS the ceiling of every deployment with nothing in the
// configuration to reveal it.
type RateLimit struct {
	// InboundQPS caps inbound requests per second across the process.
	//
	// Absent means DefaultInboundQPS, zero disables the limiter, and a positive
	// value is the threshold. The pointer is what separates "not configured"
	// from "configured to zero" - the two need different answers and a plain
	// float64 cannot tell them apart.
	InboundQPS *float64
}

// Threshold reports the limit to apply. Zero means no limiting.
func (r RateLimit) Threshold() float64 {
	if r.InboundQPS == nil {
		return DefaultInboundQPS
	}
	return *r.InboundQPS
}

type AMap struct {
	Key string
}

// FileStore 对象存储。上传接口的 source 参数决定走哪一家：2 是阿里云，3 是七牛。
// 没有填的那一家在被请求时返回明确错误，而不是上传到别处或者崩溃。
//
// common/file_store 里还实现了华为云 OBS，但上传接口没有对应的 source 取值，
// 所以这里也不为它提供配置。
type FileStore struct {
	AliYun ObjectStore
	QiNiu  ObjectStore
}

type ObjectStore struct {
	Endpoint        string
	AccessKeyID     string
	AccessKeySecret string
	BucketName      string
}

// Configured reports whether enough was filled in to attempt a connection.
func (o ObjectStore) Configured() bool {
	return o.Endpoint != "" && o.AccessKeyID != "" && o.AccessKeySecret != "" && o.BucketName != ""
}