package audit

import (
	"context"
)

// RequestMeta carries per-request caller identity parsed from HTTP headers.
// udeServer has no auth layer yet, so the fields stay empty unless a future
// middleware fills them in.
type RequestMeta struct {
	UserId    string
	UserName  string
	UserToken string
	ApiKey    string
	ApiSecret string
	ApiHmac   string
}

type ctxKeyRequestMeta struct{}

// RequestMetaKey is the context key of RequestMeta.
var RequestMetaKey = ctxKeyRequestMeta{}

// WithRequestMeta stores RequestMeta in ctx.
func WithRequestMeta(ctx context.Context, m RequestMeta) context.Context {
	return context.WithValue(ctx, RequestMetaKey, m)
}

// GetRequestMeta returns the RequestMeta carried by ctx, or the zero value.
func GetRequestMeta(ctx context.Context) RequestMeta {
	if v := ctx.Value(RequestMetaKey); v != nil {
		if m, ok := v.(RequestMeta); ok {
			return m
		}
	}
	return RequestMeta{}
}