Use upstream slack-go/slack again (#1018)

vendor/github.com/slack-go/slack/views.go

@@ -0,0 +1,221 @@
+package slack
+
+import (
+	"context"
+	"encoding/json"
+)
+
+const (
+	VTModal   ViewType = "modal"
+	VTHomeTab ViewType = "home"
+)
+
+type ViewType string
+
+type View struct {
+	SlackResponse
+	ID              string           `json:"id"`
+	TeamID          string           `json:"team_id"`
+	Type            ViewType         `json:"type"`
+	Title           *TextBlockObject `json:"title"`
+	Close           *TextBlockObject `json:"close"`
+	Submit          *TextBlockObject `json:"submit"`
+	Blocks          Blocks           `json:"blocks"`
+	PrivateMetadata string           `json:"private_metadata"`
+	CallbackID      string           `json:"callback_id"`
+	State           interface{}      `json:"state"`
+	Hash            string           `json:"hash"`
+	ClearOnClose    bool             `json:"clear_on_close"`
+	NotifyOnClose   bool             `json:"notify_on_close"`
+	RootViewID      string           `json:"root_view_id"`
+	PreviousViewID  string           `json:"previous_view_id"`
+	AppID           string           `json:"app_id"`
+	ExternalID      string           `json:"external_id"`
+	BotID           string           `json:"bot_id"`
+}
+
+type ModalViewRequest struct {
+	Type            ViewType         `json:"type"`
+	Title           *TextBlockObject `json:"title"`
+	Blocks          Blocks           `json:"blocks"`
+	Close           *TextBlockObject `json:"close"`
+	Submit          *TextBlockObject `json:"submit"`
+	PrivateMetadata string           `json:"private_metadata"`
+	CallbackID      string           `json:"callback_id"`
+	ClearOnClose    bool             `json:"clear_on_close"`
+	NotifyOnClose   bool             `json:"notify_on_close"`
+	ExternalID      string           `json:"external_id"`
+}
+
+func (v *ModalViewRequest) ViewType() ViewType {
+	return v.Type
+}
+
+type HomeTabViewRequest struct {
+	Type            ViewType `json:"type"`
+	Blocks          Blocks   `json:"blocks"`
+	PrivateMetadata string   `json:"private_metadata"`
+	CallbackID      string   `json:"callback_id"`
+	ExternalID      string   `json:"external_id"`
+}
+
+func (v *HomeTabViewRequest) ViewType() ViewType {
+	return v.Type
+}
+
+type openViewRequest struct {
+	TriggerID string           `json:"trigger_id"`
+	View      ModalViewRequest `json:"view"`
+}
+
+type publishViewRequest struct {
+	UserID string             `json:"user_id"`
+	View   HomeTabViewRequest `json:"view"`
+	Hash   string             `json:"hash"`
+}
+
+type pushViewRequest struct {
+	TriggerID string           `json:"trigger_id"`
+	View      ModalViewRequest `json:"view"`
+}
+
+type updateViewRequest struct {
+	View       ModalViewRequest `json:"view"`
+	ExternalID string           `json:"external_id"`
+	Hash       string           `json:"hash"`
+	ViewID     string           `json:"view_id"`
+}
+
+type ViewResponse struct {
+	SlackResponse
+	View `json:"view"`
+}
+
+// OpenView opens a view for a user.
+func (api *Client) OpenView(triggerID string, view ModalViewRequest) (*ViewResponse, error) {
+	return api.OpenViewContext(context.Background(), triggerID, view)
+}
+
+// OpenViewContext opens a view for a user with a custom context.
+func (api *Client) OpenViewContext(
+	ctx context.Context,
+	triggerID string,
+	view ModalViewRequest,
+) (*ViewResponse, error) {
+	if triggerID == "" {
+		return nil, ErrParametersMissing
+	}
+	req := openViewRequest{
+		TriggerID: triggerID,
+		View:      view,
+	}
+	encoded, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+	endpoint := api.endpoint + "views.open"
+	resp := &ViewResponse{}
+	err = postJSON(ctx, api.httpclient, endpoint, api.token, encoded, resp, api)
+	if err != nil {
+		return nil, err
+	}
+	return resp, resp.Err()
+}
+
+// PublishView publishes a static view for a user.
+func (api *Client) PublishView(userID string, view HomeTabViewRequest, hash string) (*ViewResponse, error) {
+	return api.PublishViewContext(context.Background(), userID, view, hash)
+}
+
+// PublishViewContext publishes a static view for a user with a custom context.
+func (api *Client) PublishViewContext(
+	ctx context.Context,
+	userID string,
+	view HomeTabViewRequest,
+	hash string,
+) (*ViewResponse, error) {
+	if userID == "" {
+		return nil, ErrParametersMissing
+	}
+	req := publishViewRequest{
+		UserID: userID,
+		View:   view,
+		Hash:   hash,
+	}
+	encoded, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+	endpoint := api.endpoint + "views.publish"
+	resp := &ViewResponse{}
+	err = postJSON(ctx, api.httpclient, endpoint, api.token, encoded, resp, api)
+	if err != nil {
+		return nil, err
+	}
+	return resp, resp.Err()
+}
+
+// PushView pushes a view onto the stack of a root view.
+func (api *Client) PushView(triggerID string, view ModalViewRequest) (*ViewResponse, error) {
+	return api.PushViewContext(context.Background(), triggerID, view)
+}
+
+// PublishViewContext pushes a view onto the stack of a root view with a custom context.
+func (api *Client) PushViewContext(
+	ctx context.Context,
+	triggerID string,
+	view ModalViewRequest,
+) (*ViewResponse, error) {
+	if triggerID == "" {
+		return nil, ErrParametersMissing
+	}
+	req := pushViewRequest{
+		TriggerID: triggerID,
+		View:      view,
+	}
+	encoded, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+	endpoint := api.endpoint + "views.push"
+	resp := &ViewResponse{}
+	err = postJSON(ctx, api.httpclient, endpoint, api.token, encoded, resp, api)
+	if err != nil {
+		return nil, err
+	}
+	return resp, resp.Err()
+}
+
+// UpdateView updates an existing view.
+func (api *Client) UpdateView(view ModalViewRequest, externalID, hash, viewID string) (*ViewResponse, error) {
+	return api.UpdateViewContext(context.Background(), view, externalID, hash, viewID)
+}
+
+// UpdateViewContext updates an existing view with a custom context.
+func (api *Client) UpdateViewContext(
+	ctx context.Context,
+	view ModalViewRequest,
+	externalID, hash,
+	viewID string,
+) (*ViewResponse, error) {
+	if externalID == "" && viewID == "" {
+		return nil, ErrParametersMissing
+	}
+	req := updateViewRequest{
+		View:       view,
+		ExternalID: externalID,
+		Hash:       hash,
+		ViewID:     viewID,
+	}
+	encoded, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+	endpoint := api.endpoint + "views.update"
+	resp := &ViewResponse{}
+	err = postJSON(ctx, api.httpclient, endpoint, api.token, encoded, resp, api)
+	if err != nil {
+		return nil, err
+	}
+	return resp, resp.Err()
+}