feat: add AdsCheckLink method

api/ads.go

@@ -15,16 +15,25 @@ import (
 // 	return
 // }
 
-// TODO: AdsCheckLinkResponse struct.
-// type AdsCheckLinkResponse struct{}
+// AdsCheckLinkResponse struct.
+type AdsCheckLinkResponse struct {
+	// link status
+	Status object.AdsLinkStatus `json:"status"`
 
-// TODO: AdsCheckLink ...
+	// (if status = disallowed) — description of the reason
+	Description string `json:"description,omitempty"`
+
+	// (if the end link differs from original and status = allowed) — end link.
+	RedirectURL string `json:"redirect_url,omitempty"`
+}
+
+// AdsCheckLink allows to check the ad link.
 //
 // https://vk.com/dev/ads.checkLink
-// func (vk *VK) AdsCheckLink(params Params) (response AdsCheckLinkResponse, err error) {
-// 	err = vk.RequestUnmarshal("ads.checkLink", &response, params)
-// 	return
-// }
+func (vk *VK) AdsCheckLink(params Params) (response AdsCheckLinkResponse, err error) {
+	err = vk.RequestUnmarshal("ads.checkLink", &response, params)
+	return
+}
 
 // TODO: AdsCreateAdsResponse struct.
 // type AdsCreateAdsResponse struct{}

object/ads.go

@@ -119,12 +119,20 @@ type AdsFloodStats struct {
 	Refresh int `json:"refresh"` // Time to refresh in seconds
 }
 
-// AdsLinkStatus struct.
-type AdsLinkStatus struct {
-	Description string `json:"description"`  // Reject reason
-	RedirectURL string `json:"redirect_url"` // URL
-	Status      string `json:"status"`       // Link status
-}
+// AdsLinkStatus link status.
+type AdsLinkStatus string
+
+// Possible values.
+const (
+	// allowed to use in ads.
+	AdsLinkAllowed AdsLinkStatus = "allowed"
+
+	// prohibited to use for this type of the object.
+	AdsLinkDisallowed AdsLinkStatus = "disallowed"
+
+	// checking, wait please.
+	AdsLinkInProgress AdsLinkStatus = "in_progress"
+)
 
 // AdsParagraphs struct.
 type AdsParagraphs struct {