Add vk bridge (#1372)

* Add vk bridge

* Vk bridge attachments

* Vk bridge forwarded messages

* Vk bridge sample config and code cleanup

* Vk bridge add vendor

* Vk bridge message edit

* Vk bridge: fix fetching names of other bots

* Vk bridge: code cleanup

* Vk bridge: fix shadows declaration

* Vk bridge: remove UseFileURL

vendor/github.com/SevereCloud/vksdk/v2/api/docs.go

@@ -0,0 +1,137 @@
+package api // import "github.com/SevereCloud/vksdk/v2/api"
+
+import (
+	"github.com/SevereCloud/vksdk/v2/object"
+)
+
+// DocsAdd copies a document to a user's or community's document list.
+//
+// https://vk.com/dev/docs.add
+func (vk *VK) DocsAdd(params Params) (response int, err error) {
+	err = vk.RequestUnmarshal("docs.add", &response, params)
+	return
+}
+
+// DocsDelete deletes a user or community document.
+//
+// https://vk.com/dev/docs.delete
+func (vk *VK) DocsDelete(params Params) (response int, err error) {
+	err = vk.RequestUnmarshal("docs.delete", &response, params)
+	return
+}
+
+// DocsEdit edits a document.
+//
+// https://vk.com/dev/docs.edit
+func (vk *VK) DocsEdit(params Params) (response int, err error) {
+	err = vk.RequestUnmarshal("docs.edit", &response, params)
+	return
+}
+
+// DocsGetResponse struct.
+type DocsGetResponse struct {
+	Count int              `json:"count"`
+	Items []object.DocsDoc `json:"items"`
+}
+
+// DocsGet returns detailed information about user or community documents.
+//
+// https://vk.com/dev/docs.get
+func (vk *VK) DocsGet(params Params) (response DocsGetResponse, err error) {
+	err = vk.RequestUnmarshal("docs.get", &response, params)
+	return
+}
+
+// DocsGetByIDResponse struct.
+type DocsGetByIDResponse []object.DocsDoc
+
+// DocsGetByID returns information about documents by their IDs.
+//
+// https://vk.com/dev/docs.getById
+func (vk *VK) DocsGetByID(params Params) (response DocsGetByIDResponse, err error) {
+	err = vk.RequestUnmarshal("docs.getById", &response, params)
+	return
+}
+
+// DocsGetMessagesUploadServerResponse struct.
+type DocsGetMessagesUploadServerResponse struct {
+	UploadURL string `json:"upload_url"`
+}
+
+// DocsGetMessagesUploadServer returns the server address for document upload.
+//
+// https://vk.com/dev/docs.getMessagesUploadServer
+func (vk *VK) DocsGetMessagesUploadServer(params Params) (response DocsGetMessagesUploadServerResponse, err error) {
+	err = vk.RequestUnmarshal("docs.getMessagesUploadServer", &response, params)
+	return
+}
+
+// DocsGetTypesResponse struct.
+type DocsGetTypesResponse struct {
+	Count int                   `json:"count"`
+	Items []object.DocsDocTypes `json:"items"`
+}
+
+// DocsGetTypes returns documents types available for current user.
+//
+// https://vk.com/dev/docs.getTypes
+func (vk *VK) DocsGetTypes(params Params) (response DocsGetTypesResponse, err error) {
+	err = vk.RequestUnmarshal("docs.getTypes", &response, params)
+	return
+}
+
+// DocsGetUploadServerResponse struct.
+type DocsGetUploadServerResponse struct {
+	UploadURL string `json:"upload_url"`
+}
+
+// DocsGetUploadServer returns the server address for document upload.
+//
+// https://vk.com/dev/docs.getUploadServer
+func (vk *VK) DocsGetUploadServer(params Params) (response DocsGetUploadServerResponse, err error) {
+	err = vk.RequestUnmarshal("docs.getUploadServer", &response, params)
+	return
+}
+
+// DocsGetWallUploadServerResponse struct.
+type DocsGetWallUploadServerResponse struct {
+	UploadURL string `json:"upload_url"`
+}
+
+// DocsGetWallUploadServer returns the server address for document upload onto a user's or community's wall.
+//
+// https://vk.com/dev/docs.getWallUploadServer
+func (vk *VK) DocsGetWallUploadServer(params Params) (response DocsGetWallUploadServerResponse, err error) {
+	err = vk.RequestUnmarshal("docs.getWallUploadServer", &response, params)
+	return
+}
+
+// DocsSaveResponse struct.
+type DocsSaveResponse struct {
+	Type         string                      `json:"type"`
+	AudioMessage object.MessagesAudioMessage `json:"audio_message"`
+	Doc          object.DocsDoc              `json:"doc"`
+	Graffiti     object.MessagesGraffiti     `json:"graffiti"`
+}
+
+// DocsSave saves a document after uploading it to a server.
+//
+// https://vk.com/dev/docs.save
+func (vk *VK) DocsSave(params Params) (response DocsSaveResponse, err error) {
+	err = vk.RequestUnmarshal("docs.save", &response, params)
+	return
+}
+
+// DocsSearchResponse struct.
+type DocsSearchResponse struct {
+	Count int              `json:"count"`
+	Items []object.DocsDoc `json:"items"`
+}
+
+// DocsSearch returns a list of documents matching the search criteria.
+//
+// https://vk.com/dev/docs.search
+func (vk *VK) DocsSearch(params Params) (response DocsSearchResponse, err error) {
+	err = vk.RequestUnmarshal("docs.search", &response, params)
+	return
+}